2017-10-23 Jonathan Wakely <jwakely@redhat.com>
+ * include/Makefile.am: Add new headers for C++17 filesystem library.
+ * include/Makefile.in: Regenerate.
+ * include/bits/fs_dir.h: New header, based on Filesystem TS code in
+ include/experimental/bits directory.
+ * include/bits/fs_fwd.h: Likewise.
+ * include/bits/fs_ops.h: Likewise.
+ * include/bits/fs_path.h: Likewise.
+ * include/experimental/bits/fs_dir.h: Rename Doxygen group.
+ * include/experimental/bits/fs_fwd.h: Likewise.
+ * include/experimental/bits/fs_ops.h: Likewise.
+ * include/experimental/bits/fs_path.h: Likewise.
+ * include/experimental/filesystem (filesystem_error::_M_gen_what):
+ Remove inline definition.
+ * include/precompiled/stdc++.h: Add <filesystem> to precompiled
+ header.
+ * include/std/filesystem: New header.
+ * python/libstdcxx/v6/printers.py: Enable printer for std::filesystem
+ paths.
+ * src/filesystem/Makefile.am: Add new files. Compile as C++17.
+ * src/filesystem/Makefile.in: Regenerate.
+ * src/filesystem/cow-dir.cc: Update comment.
+ * src/filesystem/cow-ops.cc: Likewise.
+ * src/filesystem/cow-path.cc: Likewise.
+ * src/filesystem/cow-std-dir.cc: New file.
+ * src/filesystem/cow-std-ops.cc: New file.
+ * src/filesystem/cow-std-path.cc: New file.
+ * src/filesystem/dir-common.h (_Dir_base, get_file_type): New header
+ for common code.
+ * src/filesystem/dir.cc (_Dir): Derive from _Dir_base.
+ (open_dir): Move to _Dir_base constructor.
+ (get_file_type): Move to dir-common.h.
+ (recurse): Move to _Dir_base::should_recurse.
+ * src/filesystem/ops-common.h: New header for common code.
+ * src/filesystem/ops.cc (is_set, make_file_type, make_file_status)
+ (is_not_found_errno, file_time, do_copy_file): Move to ops-common.h.
+ * src/filesystem/path.cc (filesystem_error::_M_gen_what): Define.
+ * src/filesystem/std-dir.cc: New file, based on Filesystem TS code.
+ * src/filesystem/std-ops.cc: Likewise.
+ * src/filesystem/std-dir.cc: Likewise.
+ * testsuite/27_io/filesystem/iterators/directory_iterator.cc: New
+ test.
+ * testsuite/27_io/filesystem/iterators/pop.cc: New test.
+ * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
+ New test.
+ * testsuite/27_io/filesystem/operations/absolute.cc: New test.
+ * testsuite/27_io/filesystem/operations/canonical.cc: New test.
+ * testsuite/27_io/filesystem/operations/copy.cc: New test.
+ * testsuite/27_io/filesystem/operations/copy_file.cc: New test.
+ * testsuite/27_io/filesystem/operations/create_directories.cc: New
+ test.
+ * testsuite/27_io/filesystem/operations/create_directory.cc: New test.
+ * testsuite/27_io/filesystem/operations/create_symlink.cc: New test.
+ * testsuite/27_io/filesystem/operations/current_path.cc: New test.
+ * testsuite/27_io/filesystem/operations/equivalent.cc: New test.
+ * testsuite/27_io/filesystem/operations/exists.cc: New test.
+ * testsuite/27_io/filesystem/operations/file_size.cc: New test.
+ * testsuite/27_io/filesystem/operations/is_empty.cc: New test.
+ * testsuite/27_io/filesystem/operations/last_write_time.cc: New test.
+ * testsuite/27_io/filesystem/operations/permissions.cc: New test.
+ * testsuite/27_io/filesystem/operations/proximate.cc: New test.
+ * testsuite/27_io/filesystem/operations/read_symlink.cc: New test.
+ * testsuite/27_io/filesystem/operations/relative.cc: New test.
+ * testsuite/27_io/filesystem/operations/remove_all.cc: New test.
+ * testsuite/27_io/filesystem/operations/space.cc: New test.
+ * testsuite/27_io/filesystem/operations/status.cc: New test.
+ * testsuite/27_io/filesystem/operations/symlink_status.cc: New test.
+ * testsuite/27_io/filesystem/operations/temp_directory_path.cc: New
+ test.
+ * testsuite/27_io/filesystem/operations/weakly_canonical.cc: New test.
+ * testsuite/27_io/filesystem/path/append/path.cc: New test.
+ * testsuite/27_io/filesystem/path/assign/assign.cc: New test.
+ * testsuite/27_io/filesystem/path/assign/copy.cc: New test.
+ * testsuite/27_io/filesystem/path/compare/compare.cc: New test.
+ * testsuite/27_io/filesystem/path/compare/path.cc: New test.
+ * testsuite/27_io/filesystem/path/compare/strings.cc: New test.
+ * testsuite/27_io/filesystem/path/concat/path.cc: New test.
+ * testsuite/27_io/filesystem/path/concat/strings.cc: New test.
+ * testsuite/27_io/filesystem/path/construct/copy.cc: New test.
+ * testsuite/27_io/filesystem/path/construct/default.cc: New test.
+ * testsuite/27_io/filesystem/path/construct/locale.cc: New test.
+ * testsuite/27_io/filesystem/path/construct/range.cc: New test.
+ * testsuite/27_io/filesystem/path/construct/string_view.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/extension.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/filename.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/parent_path.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/relative_path.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/decompose/root_directory.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/decompose/root_name.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/root_path.cc: New test.
+ * testsuite/27_io/filesystem/path/decompose/stem.cc: New test.
+ * testsuite/27_io/filesystem/path/generation/normal.cc: New test.
+ * testsuite/27_io/filesystem/path/generation/proximate.cc: New test.
+ * testsuite/27_io/filesystem/path/generation/relative.cc: New test.
+ * testsuite/27_io/filesystem/path/generic/generic_string.cc: New test.
+ * testsuite/27_io/filesystem/path/itr/traversal.cc: New test.
+ * testsuite/27_io/filesystem/path/modifiers/clear.cc: New test.
+ * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/modifiers/swap.cc: New test.
+ * testsuite/27_io/filesystem/path/native/string.cc: New test.
+ * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: New test.
+ * testsuite/27_io/filesystem/path/query/empty.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_extension.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_filename.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_parent_path.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_relative_path.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/query/has_root_directory.cc: New
+ test.
+ * testsuite/27_io/filesystem/path/query/has_root_name.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_root_path.cc: New test.
+ * testsuite/27_io/filesystem/path/query/has_stem.cc: New test.
+ * testsuite/27_io/filesystem/path/query/is_relative.cc: New test.
+ * testsuite/experimental/filesystem/path/construct/string_view.cc:
+ Define USE_FILESYSTEM_TS.
+ * testsuite/util/testsuite_fs.h: Allow use with C++17 paths as well
+ as Filesystem TS.
+
PR libstdc++/82644
* doc/xml/manual/intro.xml: Include new section.
* doc/xml/manual/status_cxxis29124.xml: New section on IS 29124
${std_srcdir}/complex \
${std_srcdir}/condition_variable \
${std_srcdir}/deque \
+ ${std_srcdir}/filesystem \
${std_srcdir}/forward_list \
${std_srcdir}/fstream \
${std_srcdir}/functional \
${bits_srcdir}/enable_special_members.h \
${bits_srcdir}/forward_list.h \
${bits_srcdir}/forward_list.tcc \
+ ${bits_srcdir}/fs_dir.h \
+ ${bits_srcdir}/fs_fwd.h \
+ ${bits_srcdir}/fs_ops.h \
+ ${bits_srcdir}/fs_path.h \
${bits_srcdir}/fstream.tcc \
${bits_srcdir}/functexcept.h \
${bits_srcdir}/functional_hash.h \
${std_srcdir}/complex \
${std_srcdir}/condition_variable \
${std_srcdir}/deque \
+ ${std_srcdir}/filesystem \
${std_srcdir}/forward_list \
${std_srcdir}/fstream \
${std_srcdir}/functional \
${bits_srcdir}/enable_special_members.h \
${bits_srcdir}/forward_list.h \
${bits_srcdir}/forward_list.tcc \
+ ${bits_srcdir}/fs_dir.h \
+ ${bits_srcdir}/fs_fwd.h \
+ ${bits_srcdir}/fs_ops.h \
+ ${bits_srcdir}/fs_path.h \
${bits_srcdir}/fstream.tcc \
${bits_srcdir}/functexcept.h \
${bits_srcdir}/functional_hash.h \
--- /dev/null
+// Filesystem directory utilities -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/bits/fs_dir.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{filesystem}
+ */
+
+#ifndef _GLIBCXX_FS_DIR_H
+#define _GLIBCXX_FS_DIR_H 1
+
+#if __cplusplus >= 201703L
+# include <typeinfo>
+# include <ext/concurrence.h>
+# include <bits/unique_ptr.h>
+# include <bits/shared_ptr.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace filesystem
+{
+ /**
+ * @ingroup filesystem
+ * @{
+ */
+
+ class file_status
+ {
+ public:
+ // constructors
+ explicit
+ file_status(file_type __ft = file_type::none,
+ perms __prms = perms::unknown) noexcept
+ : _M_type(__ft), _M_perms(__prms) { }
+
+ file_status(const file_status&) noexcept = default;
+ file_status(file_status&&) noexcept = default;
+ ~file_status() = default;
+
+ file_status& operator=(const file_status&) noexcept = default;
+ file_status& operator=(file_status&&) noexcept = default;
+
+ // observers
+ file_type type() const noexcept { return _M_type; }
+ perms permissions() const noexcept { return _M_perms; }
+
+ // modifiers
+ void type(file_type __ft) noexcept { _M_type = __ft; }
+ void permissions(perms __prms) noexcept { _M_perms = __prms; }
+
+ private:
+ file_type _M_type;
+ perms _M_perms;
+ };
+
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ struct _Dir;
+ class directory_iterator;
+ class recursive_directory_iterator;
+
+ class directory_entry
+ {
+ public:
+ // constructors and destructor
+ directory_entry() noexcept = default;
+ directory_entry(const directory_entry&) = default;
+ directory_entry(directory_entry&&) noexcept = default;
+
+ explicit
+ directory_entry(const filesystem::path& __p)
+ : _M_path(__p)
+ { refresh(); }
+
+ directory_entry(const filesystem::path& __p, error_code& __ec)
+ : _M_path(__p)
+ {
+ refresh(__ec);
+ if (__ec)
+ _M_path.clear();
+ }
+
+ ~directory_entry() = default;
+
+ // modifiers
+ directory_entry& operator=(const directory_entry&) = default;
+ directory_entry& operator=(directory_entry&&) noexcept = default;
+
+ void
+ assign(const filesystem::path& __p)
+ {
+ _M_path = __p;
+ refresh();
+ }
+
+ void
+ assign(const filesystem::path& __p, error_code& __ec)
+ {
+ _M_path = __p;
+ refresh(__ec);
+ }
+
+ void
+ replace_filename(const filesystem::path& __p)
+ {
+ _M_path.replace_filename(__p);
+ refresh();
+ }
+
+ void
+ replace_filename(const filesystem::path& __p, error_code& __ec)
+ {
+ _M_path.replace_filename(__p);
+ refresh(__ec);
+ }
+
+ void refresh() { _M_type = symlink_status().type(); }
+ void refresh(error_code& __ec) { _M_type = symlink_status(__ec).type(); }
+
+ // observers
+ const filesystem::path& path() const noexcept { return _M_path; }
+ operator const filesystem::path& () const noexcept { return _M_path; }
+
+ bool
+ exists() const
+ { return filesystem::exists(file_status{_M_file_type()}); }
+
+ bool
+ exists(error_code& __ec) const noexcept
+ { return filesystem::exists(file_status{_M_file_type(__ec)}); }
+
+ bool
+ is_block_file() const
+ { return _M_file_type() == file_type::block; }
+
+ bool
+ is_block_file(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::block; }
+
+ bool
+ is_character_file() const
+ { return _M_file_type() == file_type::character; }
+
+ bool
+ is_character_file(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::character; }
+
+ bool
+ is_directory() const
+ { return _M_file_type() == file_type::directory; }
+
+ bool
+ is_directory(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::directory; }
+
+ bool
+ is_fifo() const
+ { return _M_file_type() == file_type::fifo; }
+
+ bool
+ is_fifo(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::fifo; }
+
+ bool
+ is_other() const
+ { return filesystem::is_other(file_status{_M_file_type()}); }
+
+ bool
+ is_other(error_code& __ec) const noexcept
+ { return filesystem::is_other(file_status{_M_file_type(__ec)}); }
+
+ bool
+ is_regular_file() const
+ { return _M_file_type() == file_type::regular; }
+
+ bool
+ is_regular_file(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::regular; }
+
+ bool
+ is_socket() const
+ { return _M_file_type() == file_type::socket; }
+
+ bool
+ is_socket(error_code& __ec) const noexcept
+ { return _M_file_type(__ec) == file_type::socket; }
+
+ bool
+ is_symlink() const
+ {
+ if (_M_type != file_type::none)
+ return _M_type == file_type::symlink;
+ return symlink_status().type() == file_type::symlink;
+ }
+
+ bool
+ is_symlink(error_code& __ec) const noexcept
+ {
+ if (_M_type != file_type::none)
+ return _M_type == file_type::symlink;
+ return symlink_status(__ec).type() == file_type::symlink;
+ }
+
+ uintmax_t
+ file_size() const
+ { return filesystem::file_size(_M_path); }
+
+ uintmax_t
+ file_size(error_code& __ec) const noexcept
+ { return filesystem::file_size(_M_path, __ec); }
+
+ uintmax_t
+ hard_link_count() const
+ { return filesystem::hard_link_count(_M_path); }
+
+ uintmax_t
+ hard_link_count(error_code& __ec) const noexcept
+ { return filesystem::hard_link_count(_M_path, __ec); }
+
+ file_time_type
+ last_write_time() const
+ { return filesystem::last_write_time(_M_path); }
+
+
+ file_time_type
+ last_write_time(error_code& __ec) const noexcept
+ { return filesystem::last_write_time(_M_path, __ec); }
+
+ file_status
+ status() const
+ { return filesystem::status(_M_path); }
+
+ file_status
+ status(error_code& __ec) const noexcept
+ { return filesystem::status(_M_path, __ec); }
+
+ file_status
+ symlink_status() const
+ { return filesystem::symlink_status(_M_path); }
+
+ file_status
+ symlink_status(error_code& __ec) const noexcept
+ { return filesystem::symlink_status(_M_path, __ec); }
+
+ bool
+ operator< (const directory_entry& __rhs) const noexcept
+ { return _M_path < __rhs._M_path; }
+
+ bool
+ operator==(const directory_entry& __rhs) const noexcept
+ { return _M_path == __rhs._M_path; }
+
+ bool
+ operator!=(const directory_entry& __rhs) const noexcept
+ { return _M_path != __rhs._M_path; }
+
+ bool
+ operator<=(const directory_entry& __rhs) const noexcept
+ { return _M_path <= __rhs._M_path; }
+
+ bool
+ operator> (const directory_entry& __rhs) const noexcept
+ { return _M_path > __rhs._M_path; }
+
+ bool
+ operator>=(const directory_entry& __rhs) const noexcept
+ { return _M_path >= __rhs._M_path; }
+
+ private:
+ friend class _Dir;
+ friend class directory_iterator;
+ friend class recursive_directory_iterator;
+
+ directory_entry(const filesystem::path& __p, file_type __t)
+ : _M_path(__p), _M_type(__t)
+ { }
+
+ // Equivalent to status().type() but uses cached value, if any.
+ file_type
+ _M_file_type() const
+ {
+ if (_M_type != file_type::none && _M_type != file_type::symlink)
+ return _M_type;
+ return status().type();
+ }
+
+ // Equivalent to status(__ec).type() but uses cached value, if any.
+ file_type
+ _M_file_type(error_code& __ec) const noexcept
+ {
+ if (_M_type != file_type::none && _M_type != file_type::symlink)
+ return _M_type;
+ return status(__ec).type();
+ }
+
+ filesystem::path _M_path;
+ file_type _M_type = file_type::none;
+ };
+
+ struct __directory_iterator_proxy
+ {
+ const directory_entry& operator*() const& noexcept { return _M_entry; }
+
+ directory_entry operator*() && noexcept { return std::move(_M_entry); }
+
+ private:
+ friend class directory_iterator;
+ friend class recursive_directory_iterator;
+
+ explicit
+ __directory_iterator_proxy(const directory_entry& __e) : _M_entry(__e) { }
+
+ directory_entry _M_entry;
+ };
+
+ class directory_iterator
+ {
+ public:
+ typedef directory_entry value_type;
+ typedef ptrdiff_t difference_type;
+ typedef const directory_entry* pointer;
+ typedef const directory_entry& reference;
+ typedef input_iterator_tag iterator_category;
+
+ directory_iterator() = default;
+
+ explicit
+ directory_iterator(const path& __p)
+ : directory_iterator(__p, directory_options::none, nullptr) { }
+
+ directory_iterator(const path& __p, directory_options __options)
+ : directory_iterator(__p, __options, nullptr) { }
+
+ directory_iterator(const path& __p, error_code& __ec) noexcept
+ : directory_iterator(__p, directory_options::none, __ec) { }
+
+ directory_iterator(const path& __p,
+ directory_options __options,
+ error_code& __ec) noexcept
+ : directory_iterator(__p, __options, &__ec) { }
+
+ directory_iterator(const directory_iterator& __rhs) = default;
+
+ directory_iterator(directory_iterator&& __rhs) noexcept = default;
+
+ ~directory_iterator() = default;
+
+ directory_iterator&
+ operator=(const directory_iterator& __rhs) = default;
+
+ directory_iterator&
+ operator=(directory_iterator&& __rhs) noexcept = default;
+
+ const directory_entry& operator*() const;
+ const directory_entry* operator->() const { return &**this; }
+ directory_iterator& operator++();
+ directory_iterator& increment(error_code& __ec) noexcept;
+
+ __directory_iterator_proxy operator++(int)
+ {
+ __directory_iterator_proxy __pr{**this};
+ ++*this;
+ return __pr;
+ }
+
+ private:
+ directory_iterator(const path&, directory_options, error_code*);
+
+ friend bool
+ operator==(const directory_iterator& __lhs,
+ const directory_iterator& __rhs);
+
+ friend class recursive_directory_iterator;
+
+ std::shared_ptr<_Dir> _M_dir;
+ };
+
+ inline directory_iterator
+ begin(directory_iterator __iter) noexcept
+ { return __iter; }
+
+ inline directory_iterator
+ end(directory_iterator) noexcept
+ { return directory_iterator(); }
+
+ inline bool
+ operator==(const directory_iterator& __lhs, const directory_iterator& __rhs)
+ {
+ return !__rhs._M_dir.owner_before(__lhs._M_dir)
+ && !__lhs._M_dir.owner_before(__rhs._M_dir);
+ }
+
+ inline bool
+ operator!=(const directory_iterator& __lhs, const directory_iterator& __rhs)
+ { return !(__lhs == __rhs); }
+
+ class recursive_directory_iterator
+ {
+ public:
+ typedef directory_entry value_type;
+ typedef ptrdiff_t difference_type;
+ typedef const directory_entry* pointer;
+ typedef const directory_entry& reference;
+ typedef input_iterator_tag iterator_category;
+
+ recursive_directory_iterator() = default;
+
+ explicit
+ recursive_directory_iterator(const path& __p)
+ : recursive_directory_iterator(__p, directory_options::none, nullptr) { }
+
+ recursive_directory_iterator(const path& __p, directory_options __options)
+ : recursive_directory_iterator(__p, __options, nullptr) { }
+
+ recursive_directory_iterator(const path& __p,
+ directory_options __options,
+ error_code& __ec) noexcept
+ : recursive_directory_iterator(__p, __options, &__ec) { }
+
+ recursive_directory_iterator(const path& __p, error_code& __ec) noexcept
+ : recursive_directory_iterator(__p, directory_options::none, &__ec) { }
+
+ recursive_directory_iterator(
+ const recursive_directory_iterator&) = default;
+
+ recursive_directory_iterator(recursive_directory_iterator&&) = default;
+
+ ~recursive_directory_iterator();
+
+ // observers
+ directory_options options() const { return _M_options; }
+ int depth() const;
+ bool recursion_pending() const { return _M_pending; }
+
+ const directory_entry& operator*() const;
+ const directory_entry* operator->() const { return &**this; }
+
+ // modifiers
+ recursive_directory_iterator&
+ operator=(const recursive_directory_iterator& __rhs) noexcept;
+ recursive_directory_iterator&
+ operator=(recursive_directory_iterator&& __rhs) noexcept;
+
+ recursive_directory_iterator& operator++();
+ recursive_directory_iterator& increment(error_code& __ec) noexcept;
+
+ __directory_iterator_proxy operator++(int)
+ {
+ __directory_iterator_proxy __pr{**this};
+ ++*this;
+ return __pr;
+ }
+
+ void pop();
+ void pop(error_code&);
+
+ void disable_recursion_pending() { _M_pending = false; }
+
+ private:
+ recursive_directory_iterator(const path&, directory_options, error_code*);
+
+ friend bool
+ operator==(const recursive_directory_iterator& __lhs,
+ const recursive_directory_iterator& __rhs);
+
+ struct _Dir_stack;
+ std::shared_ptr<_Dir_stack> _M_dirs;
+ directory_options _M_options = {};
+ bool _M_pending = false;
+ };
+
+ inline recursive_directory_iterator
+ begin(recursive_directory_iterator __iter) noexcept
+ { return __iter; }
+
+ inline recursive_directory_iterator
+ end(recursive_directory_iterator) noexcept
+ { return recursive_directory_iterator(); }
+
+ inline bool
+ operator==(const recursive_directory_iterator& __lhs,
+ const recursive_directory_iterator& __rhs)
+ {
+ return !__rhs._M_dirs.owner_before(__lhs._M_dirs)
+ && !__lhs._M_dirs.owner_before(__rhs._M_dirs);
+ }
+
+ inline bool
+ operator!=(const recursive_directory_iterator& __lhs,
+ const recursive_directory_iterator& __rhs)
+ { return !(__lhs == __rhs); }
+
+_GLIBCXX_END_NAMESPACE_CXX11
+
+ // @} group filesystem
+} // namespace filesystem
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // C++17
+
+#endif // _GLIBCXX_FS_DIR_H
--- /dev/null
+// Filesystem declarations -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/bits/fs_fwd.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{filesystem}
+ */
+
+#ifndef _GLIBCXX_FS_FWD_H
+#define _GLIBCXX_FS_FWD_H 1
+
+#if __cplusplus >= 201703L
+
+#include <system_error>
+#include <cstdint>
+#include <chrono>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace filesystem
+{
+#if _GLIBCXX_USE_CXX11_ABI
+inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
+#endif
+
+ /**
+ * @defgroup filesystem Filesystem
+ *
+ * Utilities for performing operations on file systems and their components,
+ * such as paths, regular files, and directories.
+ *
+ * @{
+ */
+
+ class file_status;
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+ class path;
+ class filesystem_error;
+ class directory_entry;
+ class directory_iterator;
+ class recursive_directory_iterator;
+_GLIBCXX_END_NAMESPACE_CXX11
+
+ struct space_info
+ {
+ uintmax_t capacity;
+ uintmax_t free;
+ uintmax_t available;
+ };
+
+ enum class file_type : signed char {
+ none = 0, not_found = -1, regular = 1, directory = 2, symlink = 3,
+ block = 4, character = 5, fifo = 6, socket = 7, unknown = 8
+ };
+
+ /// Bitmask type
+ enum class copy_options : unsigned short {
+ none = 0,
+ skip_existing = 1, overwrite_existing = 2, update_existing = 4,
+ recursive = 8,
+ copy_symlinks = 16, skip_symlinks = 32,
+ directories_only = 64, create_symlinks = 128, create_hard_links = 256
+ };
+
+ constexpr copy_options
+ operator&(copy_options __x, copy_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<copy_options>::type;
+ return static_cast<copy_options>(
+ static_cast<__utype>(__x) & static_cast<__utype>(__y));
+ }
+
+ constexpr copy_options
+ operator|(copy_options __x, copy_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<copy_options>::type;
+ return static_cast<copy_options>(
+ static_cast<__utype>(__x) | static_cast<__utype>(__y));
+ }
+
+ constexpr copy_options
+ operator^(copy_options __x, copy_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<copy_options>::type;
+ return static_cast<copy_options>(
+ static_cast<__utype>(__x) ^ static_cast<__utype>(__y));
+ }
+
+ constexpr copy_options
+ operator~(copy_options __x) noexcept
+ {
+ using __utype = typename std::underlying_type<copy_options>::type;
+ return static_cast<copy_options>(~static_cast<__utype>(__x));
+ }
+
+ inline copy_options&
+ operator&=(copy_options& __x, copy_options __y) noexcept
+ { return __x = __x & __y; }
+
+ inline copy_options&
+ operator|=(copy_options& __x, copy_options __y) noexcept
+ { return __x = __x | __y; }
+
+ inline copy_options&
+ operator^=(copy_options& __x, copy_options __y) noexcept
+ { return __x = __x ^ __y; }
+
+
+ /// Bitmask type
+ enum class perms : unsigned {
+ none = 0,
+ owner_read = 0400,
+ owner_write = 0200,
+ owner_exec = 0100,
+ owner_all = 0700,
+ group_read = 040,
+ group_write = 020,
+ group_exec = 010,
+ group_all = 070,
+ others_read = 04,
+ others_write = 02,
+ others_exec = 01,
+ others_all = 07,
+ all = 0777,
+ set_uid = 04000,
+ set_gid = 02000,
+ sticky_bit = 01000,
+ mask = 07777,
+ unknown = 0xFFFF,
+ };
+
+ constexpr perms
+ operator&(perms __x, perms __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perms>::type;
+ return static_cast<perms>(
+ static_cast<__utype>(__x) & static_cast<__utype>(__y));
+ }
+
+ constexpr perms
+ operator|(perms __x, perms __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perms>::type;
+ return static_cast<perms>(
+ static_cast<__utype>(__x) | static_cast<__utype>(__y));
+ }
+
+ constexpr perms
+ operator^(perms __x, perms __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perms>::type;
+ return static_cast<perms>(
+ static_cast<__utype>(__x) ^ static_cast<__utype>(__y));
+ }
+
+ constexpr perms
+ operator~(perms __x) noexcept
+ {
+ using __utype = typename std::underlying_type<perms>::type;
+ return static_cast<perms>(~static_cast<__utype>(__x));
+ }
+
+ inline perms&
+ operator&=(perms& __x, perms __y) noexcept
+ { return __x = __x & __y; }
+
+ inline perms&
+ operator|=(perms& __x, perms __y) noexcept
+ { return __x = __x | __y; }
+
+ inline perms&
+ operator^=(perms& __x, perms __y) noexcept
+ { return __x = __x ^ __y; }
+
+ /// Bitmask type
+ enum class perm_options : unsigned {
+ replace = 0x1,
+ add = 0x2,
+ remove = 0x4,
+ nofollow = 0x8
+ };
+
+ constexpr perm_options
+ operator&(perm_options __x, perm_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perm_options>::type;
+ return static_cast<perm_options>(
+ static_cast<__utype>(__x) & static_cast<__utype>(__y));
+ }
+
+ constexpr perm_options
+ operator|(perm_options __x, perm_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perm_options>::type;
+ return static_cast<perm_options>(
+ static_cast<__utype>(__x) | static_cast<__utype>(__y));
+ }
+
+ constexpr perm_options
+ operator^(perm_options __x, perm_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<perm_options>::type;
+ return static_cast<perm_options>(
+ static_cast<__utype>(__x) ^ static_cast<__utype>(__y));
+ }
+
+ constexpr perm_options
+ operator~(perm_options __x) noexcept
+ {
+ using __utype = typename std::underlying_type<perm_options>::type;
+ return static_cast<perm_options>(~static_cast<__utype>(__x));
+ }
+
+ inline perm_options&
+ operator&=(perm_options& __x, perm_options __y) noexcept
+ { return __x = __x & __y; }
+
+ inline perm_options&
+ operator|=(perm_options& __x, perm_options __y) noexcept
+ { return __x = __x | __y; }
+
+ inline perm_options&
+ operator^=(perm_options& __x, perm_options __y) noexcept
+ { return __x = __x ^ __y; }
+
+ // Bitmask type
+ enum class directory_options : unsigned char {
+ none = 0, follow_directory_symlink = 1, skip_permission_denied = 2
+ };
+
+ constexpr directory_options
+ operator&(directory_options __x, directory_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<directory_options>::type;
+ return static_cast<directory_options>(
+ static_cast<__utype>(__x) & static_cast<__utype>(__y));
+ }
+
+ constexpr directory_options
+ operator|(directory_options __x, directory_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<directory_options>::type;
+ return static_cast<directory_options>(
+ static_cast<__utype>(__x) | static_cast<__utype>(__y));
+ }
+
+ constexpr directory_options
+ operator^(directory_options __x, directory_options __y) noexcept
+ {
+ using __utype = typename std::underlying_type<directory_options>::type;
+ return static_cast<directory_options>(
+ static_cast<__utype>(__x) ^ static_cast<__utype>(__y));
+ }
+
+ constexpr directory_options
+ operator~(directory_options __x) noexcept
+ {
+ using __utype = typename std::underlying_type<directory_options>::type;
+ return static_cast<directory_options>(~static_cast<__utype>(__x));
+ }
+
+ inline directory_options&
+ operator&=(directory_options& __x, directory_options __y) noexcept
+ { return __x = __x & __y; }
+
+ inline directory_options&
+ operator|=(directory_options& __x, directory_options __y) noexcept
+ { return __x = __x | __y; }
+
+ inline directory_options&
+ operator^=(directory_options& __x, directory_options __y) noexcept
+ { return __x = __x ^ __y; }
+
+ using file_time_type = std::chrono::system_clock::time_point;
+
+ // operational functions
+
+ void copy(const path& __from, const path& __to, copy_options __options);
+ void copy(const path& __from, const path& __to, copy_options __options,
+ error_code&) noexcept;
+
+ bool copy_file(const path& __from, const path& __to, copy_options __option);
+ bool copy_file(const path& __from, const path& __to, copy_options __option,
+ error_code&) noexcept;
+
+ path current_path();
+
+ bool exists(file_status) noexcept;
+
+ bool is_other(file_status) noexcept;
+
+ uintmax_t file_size(const path&);
+ uintmax_t file_size(const path&, error_code&) noexcept;
+ uintmax_t hard_link_count(const path&);
+ uintmax_t hard_link_count(const path&, error_code&) noexcept;
+ file_time_type last_write_time(const path&);
+ file_time_type last_write_time(const path&, error_code&) noexcept;
+
+ void permissions(const path&, perms, perm_options, error_code&);
+
+ path proximate(const path& __p, const path& __base, error_code& __ec);
+ path proximate(const path& __p, const path& __base, error_code& __ec);
+
+ path relative(const path& __p, const path& __base, error_code& __ec);
+
+ file_status status(const path&);
+ file_status status(const path&, error_code&) noexcept;
+
+ bool status_known(file_status) noexcept;
+
+ file_status symlink_status(const path&);
+ file_status symlink_status(const path&, error_code&) noexcept;
+
+ bool is_regular_file(file_status) noexcept;
+ bool is_symlink(file_status) noexcept;
+
+ // @} group filesystem
+} // namespace filesystem
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // C++17
+
+#endif // _GLIBCXX_FS_FWD_H
--- /dev/null
+// Filesystem operational functions -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your __option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/bits/fs_fwd.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{filesystem}
+ */
+
+#ifndef _GLIBCXX_FS_OPS_H
+#define _GLIBCXX_FS_OPS_H 1
+
+#if __cplusplus >= 201703L
+
+#include <cstdint>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace filesystem
+{
+ /**
+ * @ingroup filesystem
+ * @{
+ */
+
+ path absolute(const path& __p);
+ path absolute(const path& __p, error_code& __ec);
+
+ path canonical(const path& __p);
+ path canonical(const path& __p, error_code& __ec);
+
+ inline void
+ copy(const path& __from, const path& __to)
+ { copy(__from, __to, copy_options::none); }
+
+ inline void
+ copy(const path& __from, const path& __to, error_code& __ec) noexcept
+ { copy(__from, __to, copy_options::none, __ec); }
+
+ void copy(const path& __from, const path& __to, copy_options __options);
+ void copy(const path& __from, const path& __to, copy_options __options,
+ error_code& __ec) noexcept;
+
+ inline bool
+ copy_file(const path& __from, const path& __to)
+ { return copy_file(__from, __to, copy_options::none); }
+
+ inline bool
+ copy_file(const path& __from, const path& __to, error_code& __ec) noexcept
+ { return copy_file(__from, __to, copy_options::none, __ec); }
+
+ bool copy_file(const path& __from, const path& __to, copy_options __option);
+ bool copy_file(const path& __from, const path& __to, copy_options __option,
+ error_code& __ec) noexcept;
+
+ void copy_symlink(const path& __existing_symlink, const path& __new_symlink);
+ void copy_symlink(const path& __existing_symlink, const path& __new_symlink,
+ error_code& __ec) noexcept;
+
+ bool create_directories(const path& __p);
+ bool create_directories(const path& __p, error_code& __ec) noexcept;
+
+ bool create_directory(const path& __p);
+ bool create_directory(const path& __p, error_code& __ec) noexcept;
+
+ bool create_directory(const path& __p, const path& attributes);
+ bool create_directory(const path& __p, const path& attributes,
+ error_code& __ec) noexcept;
+
+ void create_directory_symlink(const path& __to, const path& __new_symlink);
+ void create_directory_symlink(const path& __to, const path& __new_symlink,
+ error_code& __ec) noexcept;
+
+ void create_hard_link(const path& __to, const path& __new_hard_link);
+ void create_hard_link(const path& __to, const path& __new_hard_link,
+ error_code& __ec) noexcept;
+
+ void create_symlink(const path& __to, const path& __new_symlink);
+ void create_symlink(const path& __to, const path& __new_symlink,
+ error_code& __ec) noexcept;
+
+ path current_path();
+ path current_path(error_code& __ec);
+ void current_path(const path& __p);
+ void current_path(const path& __p, error_code& __ec) noexcept;
+
+ bool
+ equivalent(const path& __p1, const path& __p2);
+
+ bool
+ equivalent(const path& __p1, const path& __p2, error_code& __ec) noexcept;
+
+ inline bool
+ exists(file_status __s) noexcept
+ { return status_known(__s) && __s.type() != file_type::not_found; }
+
+ inline bool
+ exists(const path& __p)
+ { return exists(status(__p)); }
+
+ inline bool
+ exists(const path& __p, error_code& __ec) noexcept
+ {
+ auto __s = status(__p, __ec);
+ if (status_known(__s))
+ __ec.clear();
+ return exists(__s);
+ }
+
+ uintmax_t file_size(const path& __p);
+ uintmax_t file_size(const path& __p, error_code& __ec) noexcept;
+
+ uintmax_t hard_link_count(const path& __p);
+ uintmax_t hard_link_count(const path& __p, error_code& __ec) noexcept;
+
+ inline bool
+ is_block_file(file_status __s) noexcept
+ { return __s.type() == file_type::block; }
+
+ inline bool
+ is_block_file(const path& __p)
+ { return is_block_file(status(__p)); }
+
+ inline bool
+ is_block_file(const path& __p, error_code& __ec) noexcept
+ { return is_block_file(status(__p, __ec)); }
+
+ inline bool
+ is_character_file(file_status __s) noexcept
+ { return __s.type() == file_type::character; }
+
+ inline bool
+ is_character_file(const path& __p)
+ { return is_character_file(status(__p)); }
+
+ inline bool
+ is_character_file(const path& __p, error_code& __ec) noexcept
+ { return is_character_file(status(__p, __ec)); }
+
+ inline bool
+ is_directory(file_status __s) noexcept
+ { return __s.type() == file_type::directory; }
+
+ inline bool
+ is_directory(const path& __p)
+ { return is_directory(status(__p)); }
+
+ inline bool
+ is_directory(const path& __p, error_code& __ec) noexcept
+ { return is_directory(status(__p, __ec)); }
+
+ bool is_empty(const path& __p);
+ bool is_empty(const path& __p, error_code& __ec) noexcept;
+
+ inline bool
+ is_fifo(file_status __s) noexcept
+ { return __s.type() == file_type::fifo; }
+
+ inline bool
+ is_fifo(const path& __p)
+ { return is_fifo(status(__p)); }
+
+ inline bool
+ is_fifo(const path& __p, error_code& __ec) noexcept
+ { return is_fifo(status(__p, __ec)); }
+
+ inline bool
+ is_other(file_status __s) noexcept
+ {
+ return exists(__s) && !is_regular_file(__s) && !is_directory(__s)
+ && !is_symlink(__s);
+ }
+
+ inline bool
+ is_other(const path& __p)
+ { return is_other(status(__p)); }
+
+ inline bool
+ is_other(const path& __p, error_code& __ec) noexcept
+ { return is_other(status(__p, __ec)); }
+
+ inline bool
+ is_regular_file(file_status __s) noexcept
+ { return __s.type() == file_type::regular; }
+
+ inline bool
+ is_regular_file(const path& __p)
+ { return is_regular_file(status(__p)); }
+
+ inline bool
+ is_regular_file(const path& __p, error_code& __ec) noexcept
+ { return is_regular_file(status(__p, __ec)); }
+
+ inline bool
+ is_socket(file_status __s) noexcept
+ { return __s.type() == file_type::socket; }
+
+ inline bool
+ is_socket(const path& __p)
+ { return is_socket(status(__p)); }
+
+ inline bool
+ is_socket(const path& __p, error_code& __ec) noexcept
+ { return is_socket(status(__p, __ec)); }
+
+ inline bool
+ is_symlink(file_status __s) noexcept
+ { return __s.type() == file_type::symlink; }
+
+ inline bool
+ is_symlink(const path& __p)
+ { return is_symlink(symlink_status(__p)); }
+
+ inline bool
+ is_symlink(const path& __p, error_code& __ec) noexcept
+ { return is_symlink(symlink_status(__p, __ec)); }
+
+ file_time_type last_write_time(const path& __p);
+ file_time_type last_write_time(const path& __p, error_code& __ec) noexcept;
+ void last_write_time(const path& __p, file_time_type __new_time);
+ void last_write_time(const path& __p, file_time_type __new_time,
+ error_code& __ec) noexcept;
+
+ void
+ permissions(const path& __p, perms __prms,
+ perm_options __opts = perm_options::replace);
+
+ inline void
+ permissions(const path& __p, perms __prms, error_code& __ec) noexcept
+ { permissions(__p, __prms, perm_options::replace, __ec); }
+
+ void
+ permissions(const path& __p, perms __prms, perm_options __opts,
+ error_code& __ec);
+
+ inline path proximate(const path& __p, error_code& __ec)
+ { return proximate(__p, current_path(), __ec); }
+
+ path proximate(const path& __p, const path& __base = current_path());
+ path proximate(const path& __p, const path& __base, error_code& __ec);
+
+ path read_symlink(const path& __p);
+ path read_symlink(const path& __p, error_code& __ec);
+
+ inline path relative(const path& __p, error_code& __ec)
+ { return relative(__p, current_path(), __ec); }
+
+ path relative(const path& __p, const path& __base = current_path());
+ path relative(const path& __p, const path& __base, error_code& __ec);
+
+ bool remove(const path& __p);
+ bool remove(const path& __p, error_code& __ec) noexcept;
+
+ uintmax_t remove_all(const path& __p);
+ uintmax_t remove_all(const path& __p, error_code& __ec) noexcept;
+
+ void rename(const path& __from, const path& __to);
+ void rename(const path& __from, const path& __to, error_code& __ec) noexcept;
+
+ void resize_file(const path& __p, uintmax_t __size);
+ void resize_file(const path& __p, uintmax_t __size, error_code& __ec) noexcept;
+
+ space_info space(const path& __p);
+ space_info space(const path& __p, error_code& __ec) noexcept;
+
+ file_status status(const path& __p);
+ file_status status(const path& __p, error_code& __ec) noexcept;
+
+ inline bool status_known(file_status __s) noexcept
+ { return __s.type() != file_type::none; }
+
+ file_status symlink_status(const path& __p);
+ file_status symlink_status(const path& __p, error_code& __ec) noexcept;
+
+ path temp_directory_path();
+ path temp_directory_path(error_code& __ec);
+
+ path weakly_canonical(const path& __p);
+ path weakly_canonical(const path& __p, error_code& __ec);
+
+ // @} group filesystem
+} // namespace filesystem
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // C++17
+
+#endif // _GLIBCXX_FS_OPS_H
--- /dev/null
+// Class filesystem::path -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/bits/fs_path.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{filesystem}
+ */
+
+#ifndef _GLIBCXX_FS_PATH_H
+#define _GLIBCXX_FS_PATH_H 1
+
+#if __cplusplus >= 201703L
+
+#include <utility>
+#include <type_traits>
+#include <vector>
+#include <locale>
+#include <iosfwd>
+#include <codecvt>
+#include <string_view>
+#include <system_error>
+#include <bits/stl_algobase.h>
+#include <bits/quoted_string.h>
+#include <bits/locale_conv.h>
+
+#if defined(_WIN32) && !defined(__CYGWIN__)
+# define _GLIBCXX_FILESYSTEM_IS_WINDOWS 1
+# include <algorithm>
+#endif
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+namespace filesystem
+{
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ /**
+ * @ingroup filesystem
+ * @{
+ */
+
+ /// A filesystem path.
+ class path
+ {
+ template<typename _CharT>
+ struct __is_encoded_char : std::false_type { };
+
+ template<typename _Iter,
+ typename _Iter_traits = std::iterator_traits<_Iter>>
+ using __is_path_iter_src
+ = __and_<__is_encoded_char<typename _Iter_traits::value_type>,
+ std::is_base_of<std::input_iterator_tag,
+ typename _Iter_traits::iterator_category>>;
+
+ template<typename _Iter>
+ static __is_path_iter_src<_Iter>
+ __is_path_src(_Iter, int);
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ static __is_encoded_char<_CharT>
+ __is_path_src(const basic_string<_CharT, _Traits, _Alloc>&, int);
+
+ template<typename _CharT, typename _Traits>
+ static __is_encoded_char<_CharT>
+ __is_path_src(const basic_string_view<_CharT, _Traits>&, int);
+
+ template<typename _Unknown>
+ static std::false_type
+ __is_path_src(const _Unknown&, ...);
+
+ template<typename _Tp1, typename _Tp2>
+ struct __constructible_from;
+
+ template<typename _Iter>
+ struct __constructible_from<_Iter, _Iter>
+ : __is_path_iter_src<_Iter>
+ { };
+
+ template<typename _Source>
+ struct __constructible_from<_Source, void>
+ : decltype(__is_path_src(std::declval<_Source>(), 0))
+ { };
+
+ template<typename _Tp1, typename _Tp2 = void>
+ using _Path = typename
+ std::enable_if<__and_<__not_<is_same<_Tp1, path>>,
+ __constructible_from<_Tp1, _Tp2>>::value,
+ path>::type;
+
+ template<typename _Source>
+ static _Source
+ _S_range_begin(_Source __begin) { return __begin; }
+
+ struct __null_terminated { };
+
+ template<typename _Source>
+ static __null_terminated
+ _S_range_end(_Source) { return {}; }
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ static const _CharT*
+ _S_range_begin(const basic_string<_CharT, _Traits, _Alloc>& __str)
+ { return __str.data(); }
+
+ template<typename _CharT, typename _Traits, typename _Alloc>
+ static const _CharT*
+ _S_range_end(const basic_string<_CharT, _Traits, _Alloc>& __str)
+ { return __str.data() + __str.size(); }
+
+ template<typename _CharT, typename _Traits>
+ static const _CharT*
+ _S_range_begin(const basic_string_view<_CharT, _Traits>& __str)
+ { return __str.data(); }
+
+ template<typename _CharT, typename _Traits>
+ static const _CharT*
+ _S_range_end(const basic_string_view<_CharT, _Traits>& __str)
+ { return __str.data() + __str.size(); }
+
+ template<typename _Tp,
+ typename _Iter = decltype(_S_range_begin(std::declval<_Tp>())),
+ typename _Val = typename std::iterator_traits<_Iter>::value_type>
+ using __value_type_is_char
+ = typename std::enable_if<std::is_same<_Val, char>::value>::type;
+
+ public:
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ typedef wchar_t value_type;
+ static constexpr value_type preferred_separator = L'\\';
+#else
+ typedef char value_type;
+ static constexpr value_type preferred_separator = '/';
+#endif
+ typedef std::basic_string<value_type> string_type;
+
+ // constructors and destructor
+
+ path() noexcept { }
+
+ path(const path& __p) = default;
+
+ path(path&& __p) noexcept
+ : _M_pathname(std::move(__p._M_pathname)), _M_type(__p._M_type)
+ {
+ _M_split_cmpts();
+ __p.clear();
+ }
+
+ path(string_type&& __source)
+ : _M_pathname(std::move(__source))
+ { _M_split_cmpts(); }
+
+ template<typename _Source,
+ typename _Require = _Path<_Source>>
+ path(_Source const& __source)
+ : _M_pathname(_S_convert(_S_range_begin(__source),
+ _S_range_end(__source)))
+ { _M_split_cmpts(); }
+
+ template<typename _InputIterator,
+ typename _Require = _Path<_InputIterator, _InputIterator>>
+ path(_InputIterator __first, _InputIterator __last)
+ : _M_pathname(_S_convert(__first, __last))
+ { _M_split_cmpts(); }
+
+ template<typename _Source,
+ typename _Require = _Path<_Source>,
+ typename _Require2 = __value_type_is_char<_Source>>
+ path(_Source const& __source, const locale& __loc)
+ : _M_pathname(_S_convert_loc(_S_range_begin(__source),
+ _S_range_end(__source), __loc))
+ { _M_split_cmpts(); }
+
+ template<typename _InputIterator,
+ typename _Require = _Path<_InputIterator, _InputIterator>,
+ typename _Require2 = __value_type_is_char<_InputIterator>>
+ path(_InputIterator __first, _InputIterator __last, const locale& __loc)
+ : _M_pathname(_S_convert_loc(__first, __last, __loc))
+ { _M_split_cmpts(); }
+
+ ~path() = default;
+
+ // assignments
+
+ path& operator=(const path& __p) = default;
+ path& operator=(path&& __p) noexcept;
+ path& operator=(string_type&& __source);
+ path& assign(string_type&& __source);
+
+ template<typename _Source>
+ _Path<_Source>&
+ operator=(_Source const& __source)
+ { return *this = path(__source); }
+
+ template<typename _Source>
+ _Path<_Source>&
+ assign(_Source const& __source)
+ { return *this = path(__source); }
+
+ template<typename _InputIterator>
+ _Path<_InputIterator, _InputIterator>&
+ assign(_InputIterator __first, _InputIterator __last)
+ { return *this = path(__first, __last); }
+
+ // appends
+
+ path& operator/=(const path& __p)
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ if (__p.is_absolute()
+ || (__p.has_root_name() && __p.root_name() != root_name()))
+ operator=(__p);
+ else
+ {
+ string_type __pathname;
+ if (__p.has_root_directory())
+ __pathname = root_name().native();
+ else if (has_filename() || (!has_root_directory() && is_absolute()))
+ __pathname = _M_pathname + preferred_separator;
+ __pathname += __p.relative_path().native(); // XXX is this right?
+ _M_pathname.swap(__pathname);
+ _M_split_cmpts();
+ }
+#else
+ // Much simpler, as any path with root-name or root-dir is absolute.
+ if (__p.is_absolute())
+ operator=(__p);
+ else
+ {
+ if (has_filename() || (_M_type == _Type::_Root_name))
+ _M_pathname += preferred_separator;
+ _M_pathname += __p.native();
+ _M_split_cmpts();
+ }
+#endif
+ return *this;
+ }
+
+ template <class _Source>
+ _Path<_Source>&
+ operator/=(_Source const& __source)
+ { return append(__source); }
+
+ template<typename _Source>
+ _Path<_Source>&
+ append(_Source const& __source)
+ {
+ return _M_append(_S_convert(_S_range_begin(__source),
+ _S_range_end(__source)));
+ }
+
+ template<typename _InputIterator>
+ _Path<_InputIterator, _InputIterator>&
+ append(_InputIterator __first, _InputIterator __last)
+ { return _M_append(_S_convert(__first, __last)); }
+
+ // concatenation
+
+ path& operator+=(const path& __x);
+ path& operator+=(const string_type& __x);
+ path& operator+=(const value_type* __x);
+ path& operator+=(value_type __x);
+ path& operator+=(basic_string_view<value_type> __x);
+
+ template<typename _Source>
+ _Path<_Source>&
+ operator+=(_Source const& __x) { return concat(__x); }
+
+ template<typename _CharT>
+ _Path<_CharT*, _CharT*>&
+ operator+=(_CharT __x);
+
+ template<typename _Source>
+ _Path<_Source>&
+ concat(_Source const& __x)
+ { return *this += _S_convert(_S_range_begin(__x), _S_range_end(__x)); }
+
+ template<typename _InputIterator>
+ _Path<_InputIterator, _InputIterator>&
+ concat(_InputIterator __first, _InputIterator __last)
+ { return *this += _S_convert(__first, __last); }
+
+ // modifiers
+
+ void clear() noexcept { _M_pathname.clear(); _M_split_cmpts(); }
+
+ path& make_preferred();
+ path& remove_filename();
+ path& replace_filename(const path& __replacement);
+ path& replace_extension(const path& __replacement = path());
+
+ void swap(path& __rhs) noexcept;
+
+ // native format observers
+
+ const string_type& native() const noexcept { return _M_pathname; }
+ const value_type* c_str() const noexcept { return _M_pathname.c_str(); }
+ operator string_type() const { return _M_pathname; }
+
+ template<typename _CharT, typename _Traits = std::char_traits<_CharT>,
+ typename _Allocator = std::allocator<_CharT>>
+ std::basic_string<_CharT, _Traits, _Allocator>
+ string(const _Allocator& __a = _Allocator()) const;
+
+ std::string string() const;
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring wstring() const;
+#endif
+ std::string u8string() const;
+ std::u16string u16string() const;
+ std::u32string u32string() const;
+
+ // generic format observers
+ template<typename _CharT, typename _Traits = std::char_traits<_CharT>,
+ typename _Allocator = std::allocator<_CharT>>
+ std::basic_string<_CharT, _Traits, _Allocator>
+ generic_string(const _Allocator& __a = _Allocator()) const;
+
+ std::string generic_string() const;
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring generic_wstring() const;
+#endif
+ std::string generic_u8string() const;
+ std::u16string generic_u16string() const;
+ std::u32string generic_u32string() const;
+
+ // compare
+
+ int compare(const path& __p) const noexcept;
+ int compare(const string_type& __s) const;
+ int compare(const value_type* __s) const;
+ int compare(const basic_string_view<value_type> __s) const;
+
+ // decomposition
+
+ path root_name() const;
+ path root_directory() const;
+ path root_path() const;
+ path relative_path() const;
+ path parent_path() const;
+ path filename() const;
+ path stem() const;
+ path extension() const;
+
+ // query
+
+ bool empty() const noexcept { return _M_pathname.empty(); }
+ bool has_root_name() const;
+ bool has_root_directory() const;
+ bool has_root_path() const;
+ bool has_relative_path() const;
+ bool has_parent_path() const;
+ bool has_filename() const;
+ bool has_stem() const;
+ bool has_extension() const;
+ bool is_absolute() const;
+ bool is_relative() const { return !is_absolute(); }
+
+ // generation
+ path lexically_normal() const;
+ path lexically_relative(const path& base) const;
+ path lexically_proximate(const path& base) const;
+
+ // iterators
+ class iterator;
+ typedef iterator const_iterator;
+
+ iterator begin() const;
+ iterator end() const;
+
+ private:
+ enum class _Type : unsigned char {
+ _Multi, _Root_name, _Root_dir, _Filename
+ };
+
+ path(string_type __str, _Type __type) : _M_pathname(__str), _M_type(__type)
+ {
+ __glibcxx_assert(_M_type != _Type::_Multi);
+ }
+
+ enum class _Split { _Stem, _Extension };
+
+ path& _M_append(string_type&& __str)
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ operator/=(path(std::move(__str)));
+#else
+ if (!_M_pathname.empty() && !_S_is_dir_sep(_M_pathname.back())
+ && (__str.empty() || !_S_is_dir_sep(__str.front())))
+ _M_pathname += preferred_separator;
+ _M_pathname += __str;
+ _M_split_cmpts();
+#endif
+ return *this;
+ }
+
+ pair<const string_type*, size_t> _M_find_extension() const;
+
+ template<typename _CharT>
+ struct _Cvt;
+
+ static string_type
+ _S_convert(value_type* __src, __null_terminated)
+ { return string_type(__src); }
+
+ static string_type
+ _S_convert(const value_type* __src, __null_terminated)
+ { return string_type(__src); }
+
+ template<typename _Iter>
+ static string_type
+ _S_convert(_Iter __first, _Iter __last)
+ {
+ using __value_type = typename std::iterator_traits<_Iter>::value_type;
+ return _Cvt<typename remove_cv<__value_type>::type>::
+ _S_convert(__first, __last);
+ }
+
+ template<typename _InputIterator>
+ static string_type
+ _S_convert(_InputIterator __src, __null_terminated)
+ {
+ using _Tp = typename std::iterator_traits<_InputIterator>::value_type;
+ std::basic_string<typename remove_cv<_Tp>::type> __tmp;
+ for (; *__src != _Tp{}; ++__src)
+ __tmp.push_back(*__src);
+ return _S_convert(__tmp.c_str(), __tmp.c_str() + __tmp.size());
+ }
+
+ static string_type
+ _S_convert_loc(const char* __first, const char* __last,
+ const std::locale& __loc);
+
+ template<typename _Iter>
+ static string_type
+ _S_convert_loc(_Iter __first, _Iter __last, const std::locale& __loc)
+ {
+ const std::string __str(__first, __last);
+ return _S_convert_loc(__str.data(), __str.data()+__str.size(), __loc);
+ }
+
+ template<typename _InputIterator>
+ static string_type
+ _S_convert_loc(_InputIterator __src, __null_terminated,
+ const std::locale& __loc)
+ {
+ std::string __tmp;
+ while (*__src != '\0')
+ __tmp.push_back(*__src++);
+ return _S_convert_loc(__tmp.data(), __tmp.data()+__tmp.size(), __loc);
+ }
+
+ template<typename _CharT, typename _Traits, typename _Allocator>
+ static basic_string<_CharT, _Traits, _Allocator>
+ _S_str_convert(const string_type&, const _Allocator& __a);
+
+ bool _S_is_dir_sep(value_type __ch)
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ return __ch == L'/' || __ch == preferred_separator;
+#else
+ return __ch == '/';
+#endif
+ }
+
+ void _M_split_cmpts();
+ void _M_trim();
+ void _M_add_root_name(size_t __n);
+ void _M_add_root_dir(size_t __pos);
+ void _M_add_filename(size_t __pos, size_t __n);
+
+ string_type _M_pathname;
+
+ struct _Cmpt;
+ using _List = _GLIBCXX_STD_C::vector<_Cmpt>;
+ _List _M_cmpts; // empty unless _M_type == _Type::_Multi
+ _Type _M_type = _Type::_Multi;
+ };
+
+ template<>
+ struct path::__is_encoded_char<char> : std::true_type
+ { using value_type = char; };
+
+ template<>
+ struct path::__is_encoded_char<wchar_t> : std::true_type
+ { using value_type = wchar_t; };
+
+ template<>
+ struct path::__is_encoded_char<char16_t> : std::true_type
+ { using value_type = char16_t; };
+
+ template<>
+ struct path::__is_encoded_char<char32_t> : std::true_type
+ { using value_type = char32_t; };
+
+ template<typename _Tp>
+ struct path::__is_encoded_char<const _Tp> : __is_encoded_char<_Tp> { };
+
+ inline void swap(path& __lhs, path& __rhs) noexcept { __lhs.swap(__rhs); }
+
+ size_t hash_value(const path& __p) noexcept;
+
+ /// Compare paths
+ inline bool operator<(const path& __lhs, const path& __rhs) noexcept
+ { return __lhs.compare(__rhs) < 0; }
+
+ /// Compare paths
+ inline bool operator<=(const path& __lhs, const path& __rhs) noexcept
+ { return !(__rhs < __lhs); }
+
+ /// Compare paths
+ inline bool operator>(const path& __lhs, const path& __rhs) noexcept
+ { return __rhs < __lhs; }
+
+ /// Compare paths
+ inline bool operator>=(const path& __lhs, const path& __rhs) noexcept
+ { return !(__lhs < __rhs); }
+
+ /// Compare paths
+ inline bool operator==(const path& __lhs, const path& __rhs) noexcept
+ { return __lhs.compare(__rhs) == 0; }
+
+ /// Compare paths
+ inline bool operator!=(const path& __lhs, const path& __rhs) noexcept
+ { return !(__lhs == __rhs); }
+
+ /// Append one path to another
+ inline path operator/(const path& __lhs, const path& __rhs)
+ { return path(__lhs) /= __rhs; }
+
+ /// Write a path to a stream
+ template<typename _CharT, typename _Traits>
+ basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __os, const path& __p)
+ {
+ auto __tmp = __p.string<_CharT, _Traits>();
+ using __quoted_string
+ = std::__detail::_Quoted_string<decltype(__tmp)&, _CharT>;
+ __os << __quoted_string{__tmp, '"', '\\'};
+ return __os;
+ }
+
+ /// Read a path from a stream
+ template<typename _CharT, typename _Traits>
+ basic_istream<_CharT, _Traits>&
+ operator>>(basic_istream<_CharT, _Traits>& __is, path& __p)
+ {
+ basic_string<_CharT, _Traits> __tmp;
+ using __quoted_string
+ = std::__detail::_Quoted_string<decltype(__tmp)&, _CharT>;
+ if (__is >> __quoted_string{ __tmp, '"', '\\' })
+ __p = std::move(__tmp);
+ return __is;
+ }
+
+ template<typename _Source>
+ inline auto
+ u8path(const _Source& __source)
+ -> decltype(filesystem::path(__source, std::locale::classic()))
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ const std::string __u8str{__source};
+ return std::filesystem::u8path(__u8str.begin(), __u8str.end());
+#else
+ return path{ __source };
+#endif
+ }
+
+ template<typename _InputIterator>
+ inline auto
+ u8path(_InputIterator __first, _InputIterator __last)
+ -> decltype(filesystem::path(__first, __last, std::locale::classic()))
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ codecvt_utf8<value_type> __cvt;
+ string_type __tmp;
+ if (__str_codecvt_in(__first, __last, __tmp, __cvt))
+ return path{ __tmp };
+ else
+ return {};
+#else
+ return path{ __first, __last };
+#endif
+ }
+
+ class filesystem_error : public std::system_error
+ {
+ public:
+ filesystem_error(const string& __what_arg, error_code __ec)
+ : system_error(__ec, __what_arg) { }
+
+ filesystem_error(const string& __what_arg, const path& __p1,
+ error_code __ec)
+ : system_error(__ec, __what_arg), _M_path1(__p1) { }
+
+ filesystem_error(const string& __what_arg, const path& __p1,
+ const path& __p2, error_code __ec)
+ : system_error(__ec, __what_arg), _M_path1(__p1), _M_path2(__p2)
+ { }
+
+ ~filesystem_error();
+
+ const path& path1() const noexcept { return _M_path1; }
+ const path& path2() const noexcept { return _M_path2; }
+ const char* what() const noexcept { return _M_what.c_str(); }
+
+ private:
+ std::string _M_gen_what();
+
+ path _M_path1;
+ path _M_path2;
+ std::string _M_what = _M_gen_what();
+ };
+
+ struct path::_Cmpt : path
+ {
+ _Cmpt(string_type __s, _Type __t, size_t __pos)
+ : path(std::move(__s), __t), _M_pos(__pos) { }
+
+ _Cmpt() : _M_pos(-1) { }
+
+ size_t _M_pos;
+ };
+
+ // specialize _Cvt for degenerate 'noconv' case
+ template<>
+ struct path::_Cvt<path::value_type>
+ {
+ template<typename _Iter>
+ static string_type
+ _S_convert(_Iter __first, _Iter __last)
+ { return string_type{__first, __last}; }
+ };
+
+ template<typename _CharT>
+ struct path::_Cvt
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ static string_type
+ _S_wconvert(const char* __f, const char* __l, true_type)
+ {
+ using _Cvt = std::codecvt<wchar_t, char, mbstate_t>;
+ const auto& __cvt = std::use_facet<_Cvt>(std::locale{});
+ std::wstring __wstr;
+ if (__str_codecvt_in(__f, __l, __wstr, __cvt))
+ return __wstr;
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+ }
+
+ static string_type
+ _S_wconvert(const _CharT* __f, const _CharT* __l, false_type)
+ {
+ std::codecvt_utf8<_CharT> __cvt;
+ std::string __str;
+ if (__str_codecvt_out(__f, __l, __str, __cvt))
+ {
+ const char* __f2 = __str.data();
+ const char* __l2 = __f2 + __str.size();
+ std::codecvt_utf8<wchar_t> __wcvt;
+ std::wstring __wstr;
+ if (__str_codecvt_in(__f2, __l2, __wstr, __wcvt))
+ return __wstr;
+ }
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+ }
+
+ static string_type
+ _S_convert(const _CharT* __f, const _CharT* __l)
+ {
+ return _S_wconvert(__f, __l, is_same<_CharT, char>{});
+ }
+#else
+ static string_type
+ _S_convert(const _CharT* __f, const _CharT* __l)
+ {
+ std::codecvt_utf8<_CharT> __cvt;
+ std::string __str;
+ if (__str_codecvt_out(__f, __l, __str, __cvt))
+ return __str;
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+ }
+#endif
+
+ static string_type
+ _S_convert(_CharT* __f, _CharT* __l)
+ {
+ return _S_convert(const_cast<const _CharT*>(__f),
+ const_cast<const _CharT*>(__l));
+ }
+
+ template<typename _Iter>
+ static string_type
+ _S_convert(_Iter __first, _Iter __last)
+ {
+ const std::basic_string<_CharT> __str(__first, __last);
+ return _S_convert(__str.data(), __str.data() + __str.size());
+ }
+
+ template<typename _Iter, typename _Cont>
+ static string_type
+ _S_convert(__gnu_cxx::__normal_iterator<_Iter, _Cont> __first,
+ __gnu_cxx::__normal_iterator<_Iter, _Cont> __last)
+ { return _S_convert(__first.base(), __last.base()); }
+ };
+
+ /// An iterator for the components of a path
+ class path::iterator
+ {
+ public:
+ using difference_type = std::ptrdiff_t;
+ using value_type = path;
+ using reference = const path&;
+ using pointer = const path*;
+ using iterator_category = std::bidirectional_iterator_tag;
+
+ iterator() : _M_path(nullptr), _M_cur(), _M_at_end() { }
+
+ iterator(const iterator&) = default;
+ iterator& operator=(const iterator&) = default;
+
+ reference operator*() const;
+ pointer operator->() const { return std::__addressof(**this); }
+
+ iterator& operator++();
+ iterator operator++(int) { auto __tmp = *this; ++*this; return __tmp; }
+
+ iterator& operator--();
+ iterator operator--(int) { auto __tmp = *this; --*this; return __tmp; }
+
+ friend bool operator==(const iterator& __lhs, const iterator& __rhs)
+ { return __lhs._M_equals(__rhs); }
+
+ friend bool operator!=(const iterator& __lhs, const iterator& __rhs)
+ { return !__lhs._M_equals(__rhs); }
+
+ private:
+ friend class path;
+
+ iterator(const path* __path, path::_List::const_iterator __iter)
+ : _M_path(__path), _M_cur(__iter), _M_at_end()
+ { }
+
+ iterator(const path* __path, bool __at_end)
+ : _M_path(__path), _M_cur(), _M_at_end(__at_end)
+ { }
+
+ bool _M_equals(iterator) const;
+
+ const path* _M_path;
+ path::_List::const_iterator _M_cur;
+ bool _M_at_end; // only used when type != _Multi
+ };
+
+
+ inline path&
+ path::operator=(path&& __p) noexcept
+ {
+ _M_pathname = std::move(__p._M_pathname);
+ _M_cmpts = std::move(__p._M_cmpts);
+ _M_type = __p._M_type;
+ __p.clear();
+ return *this;
+ }
+
+ inline path&
+ path::operator=(string_type&& __source)
+ { return *this = path(std::move(__source)); }
+
+ inline path&
+ path::assign(string_type&& __source)
+ { return *this = path(std::move(__source)); }
+
+ inline path&
+ path::operator+=(const path& __p)
+ {
+ return operator+=(__p.native());
+ }
+
+ inline path&
+ path::operator+=(const string_type& __x)
+ {
+ _M_pathname += __x;
+ _M_split_cmpts();
+ return *this;
+ }
+
+ inline path&
+ path::operator+=(const value_type* __x)
+ {
+ _M_pathname += __x;
+ _M_split_cmpts();
+ return *this;
+ }
+
+ inline path&
+ path::operator+=(value_type __x)
+ {
+ _M_pathname += __x;
+ _M_split_cmpts();
+ return *this;
+ }
+
+ inline path&
+ path::operator+=(basic_string_view<value_type> __x)
+ {
+ _M_pathname.append(__x.data(), __x.size());
+ _M_split_cmpts();
+ return *this;
+ }
+
+ template<typename _CharT>
+ inline path::_Path<_CharT*, _CharT*>&
+ path::operator+=(_CharT __x)
+ {
+ auto* __addr = std::__addressof(__x);
+ return concat(__addr, __addr + 1);
+ }
+
+ inline path&
+ path::make_preferred()
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ std::replace(_M_pathname.begin(), _M_pathname.end(), L'/',
+ preferred_separator);
+#endif
+ return *this;
+ }
+
+ inline void path::swap(path& __rhs) noexcept
+ {
+ _M_pathname.swap(__rhs._M_pathname);
+ _M_cmpts.swap(__rhs._M_cmpts);
+ std::swap(_M_type, __rhs._M_type);
+ }
+
+ template<typename _CharT, typename _Traits, typename _Allocator>
+ std::basic_string<_CharT, _Traits, _Allocator>
+ path::_S_str_convert(const string_type& __str, const _Allocator& __a)
+ {
+ if (__str.size() == 0)
+ return std::basic_string<_CharT, _Traits, _Allocator>(__a);
+
+ const value_type* __first = __str.data();
+ const value_type* __last = __first + __str.size();
+
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ using _CharAlloc = __alloc_rebind<_Allocator, char>;
+ using _String = basic_string<char, char_traits<char>, _CharAlloc>;
+ using _WString = basic_string<_CharT, _Traits, _Allocator>;
+
+ // use codecvt_utf8<wchar_t> to convert native string to UTF-8
+ codecvt_utf8<value_type> __cvt;
+ _String __u8str{_CharAlloc{__a}};
+ if (__str_codecvt_out(__first, __last, __u8str, __cvt))
+ {
+ if constexpr (is_same_v<_CharT, char>)
+ return __u8str;
+ else
+ {
+ _WString __wstr;
+ // use codecvt_utf8<_CharT> to convert UTF-8 to wide string
+ codecvt_utf8<_CharT> __cvt;
+ const char* __f = __u8str.data();
+ const char* __l = __f + __u8str.size();
+ if (__str_codecvt_in(__f, __l, __wstr, __cvt))
+ return __wstr;
+ }
+ }
+#else
+ codecvt_utf8<_CharT> __cvt;
+ basic_string<_CharT, _Traits, _Allocator> __wstr{__a};
+ if (__str_codecvt_in(__first, __last, __wstr, __cvt))
+ return __wstr;
+#endif
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+ }
+
+ template<typename _CharT, typename _Traits, typename _Allocator>
+ inline basic_string<_CharT, _Traits, _Allocator>
+ path::string(const _Allocator& __a) const
+ {
+ if constexpr (is_same_v<_CharT, value_type>)
+#if _GLIBCXX_USE_CXX11_ABI
+ return { _M_pathname, __a };
+#else
+ return { _M_pathname, string_type::size_type(0), __a };
+#endif
+ else
+ return _S_str_convert<_CharT, _Traits>(_M_pathname, __a);
+ }
+
+ inline std::string
+ path::string() const { return string<char>(); }
+
+#if _GLIBCXX_USE_WCHAR_T
+ inline std::wstring
+ path::wstring() const { return string<wchar_t>(); }
+#endif
+
+ inline std::string
+ path::u8string() const
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ std::string __str;
+ // convert from native encoding to UTF-8
+ codecvt_utf8<value_type> __cvt;
+ const value_type* __first = _M_pathname.data();
+ const value_type* __last = __first + _M_pathname.size();
+ if (__str_codecvt_out(__first, __last, __str, __cvt))
+ return __str;
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+#else
+ return _M_pathname;
+#endif
+ }
+
+ inline std::u16string
+ path::u16string() const { return string<char16_t>(); }
+
+ inline std::u32string
+ path::u32string() const { return string<char32_t>(); }
+
+ template<typename _CharT, typename _Traits, typename _Allocator>
+ inline std::basic_string<_CharT, _Traits, _Allocator>
+ path::generic_string(const _Allocator& __a) const
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ const value_type __slash = L'/';
+#else
+ const value_type __slash = '/';
+#endif
+ string_type __str(__a);
+
+ if (_M_type == _Type::_Root_dir)
+ __str.assign(1, __slash);
+ else
+ {
+ __str.reserve(_M_pathname.size());
+ bool __add_slash = false;
+ for (auto& __elem : *this)
+ {
+ if (__add_slash)
+ __str += __slash;
+ __str += __elem._M_pathname;
+ __add_slash = __elem._M_type == _Type::_Filename;
+ }
+ }
+
+ if constexpr (is_same_v<_CharT, value_type>)
+ return __str;
+ else
+ return _S_str_convert<_CharT, _Traits>(__str, __a);
+ }
+
+ inline std::string
+ path::generic_string() const
+ { return generic_string<char>(); }
+
+#if _GLIBCXX_USE_WCHAR_T
+ inline std::wstring
+ path::generic_wstring() const
+ { return generic_string<wchar_t>(); }
+#endif
+
+ inline std::string
+ path::generic_u8string() const
+ { return generic_string(); }
+
+ inline std::u16string
+ path::generic_u16string() const
+ { return generic_string<char16_t>(); }
+
+ inline std::u32string
+ path::generic_u32string() const
+ { return generic_string<char32_t>(); }
+
+ inline int
+ path::compare(const string_type& __s) const { return compare(path(__s)); }
+
+ inline int
+ path::compare(const value_type* __s) const { return compare(path(__s)); }
+
+ inline int
+ path::compare(basic_string_view<value_type> __s) const
+ { return compare(path(__s)); }
+
+ inline path
+ path::filename() const
+ {
+ if (empty())
+ return {};
+ else if (_M_type == _Type::_Filename)
+ return *this;
+ else if (_M_type == _Type::_Multi)
+ {
+ if (_M_pathname.back() == preferred_separator)
+ return {};
+ auto& __last = *--end();
+ if (__last._M_type == _Type::_Filename)
+ return __last;
+ }
+ return {};
+ }
+
+ inline path
+ path::stem() const
+ {
+ auto ext = _M_find_extension();
+ if (ext.first && ext.second != 0)
+ return path{ext.first->substr(0, ext.second)};
+ return {};
+ }
+
+ inline path
+ path::extension() const
+ {
+ auto ext = _M_find_extension();
+ if (ext.first && ext.second != string_type::npos)
+ return path{ext.first->substr(ext.second)};
+ return {};
+ }
+
+ inline bool
+ path::has_stem() const
+ {
+ auto ext = _M_find_extension();
+ return ext.first && ext.second != 0;
+ }
+
+ inline bool
+ path::has_extension() const
+ {
+ auto ext = _M_find_extension();
+ return ext.first && ext.second != string_type::npos;
+ }
+
+ inline bool
+ path::is_absolute() const
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ return has_root_name();
+#else
+ return has_root_directory();
+#endif
+ }
+
+ inline path::iterator
+ path::begin() const
+ {
+ if (_M_type == _Type::_Multi)
+ return iterator(this, _M_cmpts.begin());
+ return iterator(this, false);
+ }
+
+ inline path::iterator
+ path::end() const
+ {
+ if (_M_type == _Type::_Multi)
+ return iterator(this, _M_cmpts.end());
+ return iterator(this, true);
+ }
+
+ inline path::iterator&
+ path::iterator::operator++()
+ {
+ __glibcxx_assert(_M_path != nullptr);
+ if (_M_path->_M_type == _Type::_Multi)
+ {
+ __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
+ ++_M_cur;
+ }
+ else
+ {
+ __glibcxx_assert(!_M_at_end);
+ _M_at_end = true;
+ }
+ return *this;
+ }
+
+ inline path::iterator&
+ path::iterator::operator--()
+ {
+ __glibcxx_assert(_M_path != nullptr);
+ if (_M_path->_M_type == _Type::_Multi)
+ {
+ __glibcxx_assert(_M_cur != _M_path->_M_cmpts.begin());
+ --_M_cur;
+ }
+ else
+ {
+ __glibcxx_assert(_M_at_end);
+ _M_at_end = false;
+ }
+ return *this;
+ }
+
+ inline path::iterator::reference
+ path::iterator::operator*() const
+ {
+ __glibcxx_assert(_M_path != nullptr);
+ if (_M_path->_M_type == _Type::_Multi)
+ {
+ __glibcxx_assert(_M_cur != _M_path->_M_cmpts.end());
+ return *_M_cur;
+ }
+ return *_M_path;
+ }
+
+ inline bool
+ path::iterator::_M_equals(iterator __rhs) const
+ {
+ if (_M_path != __rhs._M_path)
+ return false;
+ if (_M_path == nullptr)
+ return true;
+ if (_M_path->_M_type == path::_Type::_Multi)
+ return _M_cur == __rhs._M_cur;
+ return _M_at_end == __rhs._M_at_end;
+ }
+
+ // @} group filesystem
+_GLIBCXX_END_NAMESPACE_CXX11
+} // namespace filesystem
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // C++17
+
+#endif // _GLIBCXX_FS_PATH_H
inline namespace v1
{
/**
- * @ingroup filesystem
+ * @ingroup filesystem-ts
* @{
*/
_GLIBCXX_END_NAMESPACE_CXX11
- // @} group filesystem
+ // @} group filesystem-ts
} // namespace v1
} // namespace filesystem
} // namespace experimental
#endif
/**
- * @defgroup filesystem Filesystem
+ * @defgroup filesystem-ts Filesystem TS
* @ingroup experimental
*
* Utilities for performing operations on file systems and their components,
bool is_regular_file(file_status) noexcept;
bool is_symlink(file_status) noexcept;
- // @} group filesystem
+ // @} group filesystem-ts
} // namespace v1
} // namespace filesystem
} // namespace experimental
inline namespace v1
{
/**
- * @ingroup filesystem
+ * @ingroup filesystem-ts
* @{
*/
path temp_directory_path();
path temp_directory_path(error_code& __ec);
- // @} group filesystem
+ // @} group filesystem-ts
} // namespace v1
} // namespace filesystem
} // namespace experimental
#endif
/**
- * @ingroup filesystem
+ * @ingroup filesystem-ts
* @{
*/
return _M_at_end == __rhs._M_at_end;
}
- // @} group filesystem
+ // @} group filesystem-ts
_GLIBCXX_END_NAMESPACE_CXX11
} // namespace v1
} // namespace filesystem
#define __cpp_lib_experimental_filesystem 201406
-namespace std _GLIBCXX_VISIBILITY(default)
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
-namespace experimental
-{
-namespace filesystem
-{
-inline namespace v1
-{
- /**
- * @ingroup filesystem
- */
- inline std::string filesystem_error::_M_gen_what()
- {
- std::string __what = "filesystem error: ";
- __what += system_error::what();
- if (!_M_path1.empty())
- __what += " [" + _M_path1.string() + ']';
- if (!_M_path2.empty())
- __what += " [" + _M_path2.string() + ']';
- return __what;
- }
-} // namespace v1
-} // namespace filesystem
-} // namespace experimental
-
-_GLIBCXX_END_NAMESPACE_VERSION
-} // namespace std
-
#endif // C++11
#endif // _GLIBCXX_EXPERIMENTAL_FILESYSTEM
#include <shared_mutex>
#endif
-#if __cplusplus > 201402L
+#if __cplusplus >= 201703L
#include <charconv>
+#include <filesystem>
#endif
--- /dev/null
+// <filesystem> -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file filesystem
+ * This is a Standard C++ Library header.
+ */
+
+#ifndef _GLIBCXX_FILESYSTEM
+#define _GLIBCXX_FILESYSTEM 1
+
+#pragma GCC system_header
+
+#if __cplusplus >= 201703L
+
+#include <bits/fs_fwd.h>
+#include <bits/fs_path.h>
+#include <bits/fs_dir.h>
+#include <bits/fs_ops.h>
+
+#define __cpp_lib_filesystem 201703
+
+#endif // C++17
+
+#endif // _GLIBCXX_FILESYSTEM
'path', StdExpPathPrinter)
libstdcxx_printer.add_version('std::experimental::filesystem::v1::__cxx11::',
'path', StdExpPathPrinter)
+ libstdcxx_printer.add_version('std::filesystem::',
+ 'path', StdExpPathPrinter)
+ libstdcxx_printer.add_version('std::filesystem::__cxx11::',
+ 'path', StdExpPathPrinter)
# C++17 components
libstdcxx_printer.add_version('std::',
cxx11_abi_sources = \
cow-dir.cc \
cow-ops.cc \
- cow-path.cc
+ cow-path.cc \
+ cow-std-dir.cc \
+ cow-std-ops.cc \
+ cow-std-path.cc
else
cxx11_abi_sources =
endif
dir.cc \
ops.cc \
path.cc \
+ std-dir.cc \
+ std-ops.cc \
+ std-path.cc \
${cxx11_abi_sources}
# vpath % $(top_srcdir)/src/filesystem
# as the occasion call for it.
AM_CXXFLAGS = \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
- -std=gnu++14 \
+ -std=gnu++17 \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
AM_MAKEFLAGS = \
LTLIBRARIES = $(toolexeclib_LTLIBRARIES)
libstdc__fs_la_LIBADD =
@ENABLE_DUAL_ABI_TRUE@am__objects_1 = cow-dir.lo cow-ops.lo \
-@ENABLE_DUAL_ABI_TRUE@ cow-path.lo
-am__objects_2 = dir.lo ops.lo path.lo $(am__objects_1)
+@ENABLE_DUAL_ABI_TRUE@ cow-path.lo cow-std-dir.lo \
+@ENABLE_DUAL_ABI_TRUE@ cow-std-ops.lo cow-std-path.lo
+am__objects_2 = dir.lo ops.lo path.lo std-dir.lo std-ops.lo \
+ std-path.lo $(am__objects_1)
am_libstdc__fs_la_OBJECTS = $(am__objects_2)
libstdc__fs_la_OBJECTS = $(am_libstdc__fs_la_OBJECTS)
DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
@ENABLE_DUAL_ABI_TRUE@cxx11_abi_sources = \
@ENABLE_DUAL_ABI_TRUE@ cow-dir.cc \
@ENABLE_DUAL_ABI_TRUE@ cow-ops.cc \
-@ENABLE_DUAL_ABI_TRUE@ cow-path.cc
+@ENABLE_DUAL_ABI_TRUE@ cow-path.cc \
+@ENABLE_DUAL_ABI_TRUE@ cow-std-dir.cc \
+@ENABLE_DUAL_ABI_TRUE@ cow-std-ops.cc \
+@ENABLE_DUAL_ABI_TRUE@ cow-std-path.cc
sources = \
dir.cc \
ops.cc \
path.cc \
+ std-dir.cc \
+ std-ops.cc \
+ std-path.cc \
${cxx11_abi_sources}
# as the occasion call for it.
AM_CXXFLAGS = \
$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
- -std=gnu++14 \
+ -std=gnu++17 \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
AM_MAKEFLAGS = \
-// Class filesystem::directory_entry etc. -*- C++ -*-
+// Class experimental::filesystem::directory_entry etc. -*- C++ -*-
// Copyright (C) 2015-2017 Free Software Foundation, Inc.
//
-// Filesystem operations -*- C++ -*-
+// Filesystem TS operations -*- C++ -*-
// Copyright (C) 2015-2017 Free Software Foundation, Inc.
//
-// Class filesystem::path -*- C++ -*-
+// Class experimental::filesystem::path -*- C++ -*-
// Copyright (C) 2015-2017 Free Software Foundation, Inc.
//
--- /dev/null
+// Class filesystem::directory_entry etc. -*- C++ -*-
+
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#define _GLIBCXX_USE_CXX11_ABI 0
+#include "std-dir.cc"
--- /dev/null
+// Filesystem operations -*- C++ -*-
+
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#define _GLIBCXX_USE_CXX11_ABI 0
+#include "std-ops.cc"
--- /dev/null
+// Class filesystem::path -*- C++ -*-
+
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#define _GLIBCXX_USE_CXX11_ABI 0
+#include "std-path.cc"
--- /dev/null
+// Filesystem directory iterator utilities -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _GLIBCXX_DIR_COMMON_H
+#define _GLIBCXX_DIR_COMMON_H 1
+
+#include <string.h> // strcmp
+#ifdef _GLIBCXX_HAVE_DIRENT_H
+# ifdef _GLIBCXX_HAVE_SYS_TYPES_H
+# include <sys/types.h>
+# endif
+# include <dirent.h>
+#else
+# error "the <dirent.h> header is needed to build the Filesystem TS"
+#endif
+
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+# undef opendir
+# define opendir _wopendir
+#endif
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace filesystem
+{
+
+struct _Dir_base
+{
+ _Dir_base(DIR* dirp = nullptr) : dirp(dirp) { }
+
+ // If no error occurs then dirp is non-null,
+ // otherwise null (whether error ignored or not).
+ _Dir_base(const char* p, bool skip_permission_denied,
+ error_code& ec) noexcept
+ : dirp(::opendir(p))
+ {
+ if (dirp)
+ ec.clear();
+ else
+ {
+ const int err = errno;
+ if (err == EACCES && skip_permission_denied)
+ ec.clear();
+ else
+ ec.assign(err, std::generic_category());
+ }
+ }
+
+ _Dir_base(_Dir_base&& d) : dirp(std::exchange(d.dirp, nullptr)) { }
+
+ _Dir_base& operator=(_Dir_base&&) = delete;
+
+ ~_Dir_base() { if (dirp) ::closedir(dirp); }
+
+ const struct ::dirent*
+ advance(bool skip_permission_denied, error_code& ec) noexcept
+ {
+ ec.clear();
+
+ int err = std::exchange(errno, 0);
+ const struct ::dirent* entp = readdir(dirp);
+ // std::swap cannot be used with Bionic's errno
+ err = std::exchange(errno, err);
+
+ if (entp)
+ {
+ // skip past dot and dot-dot
+ if (!strcmp(entp->d_name, ".") || !strcmp(entp->d_name, ".."))
+ return advance(skip_permission_denied, ec);
+ return entp;
+ }
+ else if (err)
+ {
+ if (err == EACCES && skip_permission_denied)
+ return nullptr;
+ ec.assign(err, std::generic_category());
+ return nullptr;
+ }
+ else
+ {
+ // reached the end
+ return nullptr;
+ }
+ }
+
+ DIR* dirp;
+};
+
+} // namespace filesystem
+
+// BEGIN/END macros must be defined before including this file.
+_GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM
+inline file_type
+get_file_type(const ::dirent& d __attribute__((__unused__)))
+{
+#ifdef _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE
+ switch (d.d_type)
+ {
+ case DT_BLK:
+ return file_type::block;
+ case DT_CHR:
+ return file_type::character;
+ case DT_DIR:
+ return file_type::directory;
+ case DT_FIFO:
+ return file_type::fifo;
+ case DT_LNK:
+ return file_type::symlink;
+ case DT_REG:
+ return file_type::regular;
+ case DT_SOCK:
+ return file_type::socket;
+ case DT_UNKNOWN:
+ return file_type::unknown;
+ default:
+ return file_type::none;
+ }
+#else
+ return file_type::none;
+#endif
+}
+_GLIBCXX_END_NAMESPACE_FILESYSTEM
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // _GLIBCXX_DIR_COMMON_H
#include <stack>
#include <string.h>
#include <errno.h>
-#ifdef _GLIBCXX_HAVE_DIRENT_H
-# ifdef _GLIBCXX_HAVE_SYS_TYPES_H
-# include <sys/types.h>
-# endif
-# include <dirent.h>
-#else
-# error "the <dirent.h> header is needed to build the Filesystem TS"
-#endif
-
-#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
-# undef opendir
-# define opendir _wopendir
-#endif
+#define _GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM \
+ namespace experimental { namespace filesystem {
+#define _GLIBCXX_END_NAMESPACE_FILESYSTEM } }
+#include "dir-common.h"
namespace fs = std::experimental::filesystem;
-struct fs::_Dir
+struct fs::_Dir : std::filesystem::_Dir_base
{
- _Dir() : dirp(nullptr) { }
+ _Dir(const fs::path& p, bool skip_permission_denied, error_code& ec)
+ : _Dir_base(p.c_str(), skip_permission_denied, ec)
+ {
+ if (!ec)
+ path = p;
+ }
- _Dir(DIR* dirp, const fs::path& path) : dirp(dirp), path(path) { }
+ _Dir(DIR* dirp, const path& p) : _Dir_base(dirp), path(p) { }
- _Dir(_Dir&& d)
- : dirp(std::exchange(d.dirp, nullptr)), path(std::move(d.path)),
- entry(std::move(d.entry)), type(d.type)
- { }
+ _Dir(_Dir&&) = default;
- _Dir& operator=(_Dir&&) = delete;
+ // Returns false when the end of the directory entries is reached.
+ // Reports errors by setting ec.
+ bool advance(bool skip_permission_denied, error_code& ec) noexcept
+ {
+ if (const auto entp = _Dir_base::advance(skip_permission_denied, ec))
+ {
+ entry = fs::directory_entry{path / entp->d_name};
+ type = get_file_type(*entp);
+ return true;
+ }
+ else if (!ec)
+ {
+ // reached the end
+ entry = {};
+ type = file_type::none;
+ }
+ return false;
+ }
+
+ bool advance(error_code& ec) noexcept { return advance(false, ec); }
- ~_Dir() { if (dirp) ::closedir(dirp); }
+ // Returns false when the end of the directory entries is reached.
+ // Reports errors by throwing.
+ bool advance(bool skip_permission_denied = false)
+ {
+ error_code ec;
+ const bool ok = advance(skip_permission_denied, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "directory iterator cannot advance", ec));
+ return ok;
+ }
- bool advance(std::error_code*, directory_options = directory_options::none);
+ bool should_recurse(bool follow_symlink, error_code& ec) const
+ {
+ file_type type = this->type;
+ if (type == file_type::none || type == file_type::unknown)
+ {
+ type = entry.symlink_status(ec).type();
+ if (ec)
+ return false;
+ }
+
+ if (type == file_type::directory)
+ return true;
+ if (type == file_type::symlink)
+ return follow_symlink && is_directory(entry.status(ec));
+ return false;
+ }
- DIR* dirp;
fs::path path;
directory_entry entry;
file_type type = file_type::none;
{
return (obj & bits) != Bitmask::none;
}
-
- // Returns {dirp, p} on success, {} on error (whether ignored or not).
- inline fs::_Dir
- open_dir(const fs::path& p, fs::directory_options options,
- std::error_code* ec)
- {
- if (ec)
- ec->clear();
-
- if (DIR* dirp = ::opendir(p.c_str()))
- return {dirp, p};
-
- const int err = errno;
- if (err == EACCES
- && is_set(options, fs::directory_options::skip_permission_denied))
- return {};
-
- if (!ec)
- _GLIBCXX_THROW_OR_ABORT(fs::filesystem_error(
- "directory iterator cannot open directory", p,
- std::error_code(err, std::generic_category())));
-
- ec->assign(err, std::generic_category());
- return {};
- }
-
- inline fs::file_type
- get_file_type(const ::dirent& d __attribute__((__unused__)))
- {
-#ifdef _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE
- switch (d.d_type)
- {
- case DT_BLK:
- return fs::file_type::block;
- case DT_CHR:
- return fs::file_type::character;
- case DT_DIR:
- return fs::file_type::directory;
- case DT_FIFO:
- return fs::file_type::fifo;
- case DT_LNK:
- return fs::file_type::symlink;
- case DT_REG:
- return fs::file_type::regular;
- case DT_SOCK:
- return fs::file_type::socket;
- case DT_UNKNOWN:
- return fs::file_type::unknown;
- default:
- return fs::file_type::none;
- }
-#else
- return fs::file_type::none;
-#endif
- }
-}
-
-
-// Returns false when the end of the directory entries is reached.
-// Reports errors by setting ec or throwing.
-bool
-fs::_Dir::advance(error_code* ec, directory_options options)
-{
- if (ec)
- ec->clear();
-
- int err = std::exchange(errno, 0);
- const auto entp = readdir(dirp);
- // std::swap cannot be used with Bionic's errno
- err = std::exchange(errno, err);
-
- if (entp)
- {
- // skip past dot and dot-dot
- if (!strcmp(entp->d_name, ".") || !strcmp(entp->d_name, ".."))
- return advance(ec, options);
- entry = fs::directory_entry{path / entp->d_name};
- type = get_file_type(*entp);
- return true;
- }
- else if (err)
- {
- if (err == EACCES
- && is_set(options, directory_options::skip_permission_denied))
- return false;
-
- if (!ec)
- _GLIBCXX_THROW_OR_ABORT(filesystem_error(
- "directory iterator cannot advance",
- std::error_code(err, std::generic_category())));
- ec->assign(err, std::generic_category());
- return false;
- }
- else
- {
- // reached the end
- entry = {};
- type = fs::file_type::none;
- return false;
- }
}
fs::directory_iterator::
-directory_iterator(const path& p, directory_options options, error_code* ec)
+directory_iterator(const path& p, directory_options options, error_code* ecptr)
{
- _Dir dir = open_dir(p, options, ec);
+ const bool skip_permission_denied
+ = is_set(options, directory_options::skip_permission_denied);
+
+ error_code ec;
+ _Dir dir(p, skip_permission_denied, ec);
if (dir.dirp)
{
auto sp = std::make_shared<fs::_Dir>(std::move(dir));
- if (sp->advance(ec, options))
+ if (sp->advance(skip_permission_denied, ec))
_M_dir.swap(sp);
}
+ if (ecptr)
+ *ecptr = ec;
+ else if (ec)
+ _GLIBCXX_THROW_OR_ABORT(fs::filesystem_error(
+ "directory iterator cannot open directory", p, ec));
}
const fs::directory_entry&
_GLIBCXX_THROW_OR_ABORT(filesystem_error(
"cannot advance non-dereferenceable directory iterator",
std::make_error_code(errc::invalid_argument)));
- if (!_M_dir->advance(nullptr))
+ if (!_M_dir->advance())
_M_dir.reset();
return *this;
}
ec = std::make_error_code(errc::invalid_argument);
return *this;
}
- if (!_M_dir->advance(&ec))
+ if (!_M_dir->advance(ec))
_M_dir.reset();
return *this;
}
-using Dir_iter_pair = std::pair<fs::_Dir, fs::directory_iterator>;
-
struct fs::recursive_directory_iterator::_Dir_stack : std::stack<_Dir>
{
void clear() { c.clear(); }
error_code* ec)
: _M_options(options), _M_pending(true)
{
+ if (ec)
+ ec->clear();
if (DIR* dirp = ::opendir(p.c_str()))
{
auto sp = std::make_shared<_Dir_stack>();
const int err = errno;
if (err == EACCES
&& is_set(options, fs::directory_options::skip_permission_denied))
- {
- if (ec)
- ec->clear();
- return;
- }
+ return;
if (!ec)
_GLIBCXX_THROW_OR_ABORT(filesystem_error(
return *this;
}
-namespace
-{
- bool
- recurse(const fs::_Dir& d, fs::directory_options options, std::error_code& ec)
- {
- bool follow_symlink
- = is_set(options, fs::directory_options::follow_directory_symlink);
-#ifdef _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE
- if (d.type == fs::file_type::directory)
- return true;
- if (d.type == fs::file_type::symlink && follow_symlink)
- return d.entry.status().type() == fs::file_type::directory;
- if (d.type != fs::file_type::none && d.type != fs::file_type::unknown)
- return false;
-#endif
- const fs::path& path = d.entry.path();
- auto type = fs::symlink_status(path, ec).type();
- if (ec.value())
- return false;
- if (type == fs::file_type::symlink)
- {
- if (!follow_symlink)
- return false;
- type = fs::status(path, ec).type();
- }
- return type == fs::file_type::directory;
- }
-}
-
fs::recursive_directory_iterator&
fs::recursive_directory_iterator::increment(error_code& ec) noexcept
{
return *this;
}
+ const bool follow
+ = is_set(_M_options, directory_options::follow_directory_symlink);
+ const bool skip_permission_denied
+ = is_set(_M_options, directory_options::skip_permission_denied);
+
auto& top = _M_dirs->top();
- if (std::exchange(_M_pending, true) && recurse(top, _M_options, ec))
+ if (std::exchange(_M_pending, true) && top.should_recurse(follow, ec))
{
- _Dir dir = open_dir(top.entry.path(), _M_options, &ec);
+ _Dir dir(top.entry.path(), skip_permission_denied, ec);
if (ec)
{
_M_dirs.reset();
_M_dirs->push(std::move(dir));
}
- while (!_M_dirs->top().advance(&ec, _M_options) && !ec)
+ while (!_M_dirs->top().advance(skip_permission_denied, ec) && !ec)
{
_M_dirs->pop();
if (_M_dirs->empty())
return;
}
+ const bool skip_permission_denied
+ = is_set(_M_options, directory_options::skip_permission_denied);
+
do {
_M_dirs->pop();
if (_M_dirs->empty())
ec.clear();
return;
}
- } while (!_M_dirs->top().advance(&ec, _M_options));
+ } while (!_M_dirs->top().advance(skip_permission_denied, ec));
}
void
--- /dev/null
+// Filesystem operation utilities -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _GLIBCXX_OPS_COMMON_H
+#define _GLIBCXX_OPS_COMMON_H 1
+
+#include <chrono>
+
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+# include <unistd.h>
+# if defined(_GLIBCXX_HAVE_SYS_STAT_H) && defined(_GLIBCXX_HAVE_SYS_TYPES_H)
+# include <sys/types.h>
+# include <sys/stat.h>
+# endif
+#endif
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace filesystem
+{
+ template<typename Bitmask>
+ inline bool is_set(Bitmask obj, Bitmask bits)
+ {
+ return (obj & bits) != Bitmask::none;
+ }
+
+ inline bool
+ is_not_found_errno(int err) noexcept
+ {
+ return err == ENOENT || err == ENOTDIR;
+ }
+
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ typedef struct ::stat stat_type;
+
+ inline std::chrono::system_clock::time_point
+ file_time(const stat_type& st, std::error_code& ec) noexcept
+ {
+ using namespace std::chrono;
+#ifdef _GLIBCXX_USE_ST_MTIM
+ time_t s = st.st_mtim.tv_sec;
+ nanoseconds ns{st.st_mtim.tv_nsec};
+#else
+ time_t s = st.st_mtime;
+ nanoseconds ns{};
+#endif
+
+ if (s >= (nanoseconds::max().count() / 1e9))
+ {
+ ec = std::make_error_code(std::errc::value_too_large); // EOVERFLOW
+ return system_clock::time_point::min();
+ }
+ ec.clear();
+ return system_clock::time_point{seconds{s} + ns};
+ }
+
+ struct copy_options_existing_file
+ {
+ bool skip, update, overwrite;
+ };
+
+ bool
+ do_copy_file(const char* from, const char* to,
+ copy_options_existing_file options,
+ stat_type* from_st, stat_type* to_st,
+ std::error_code& ec) noexcept;
+
+#endif // _GLIBCXX_HAVE_SYS_STAT_H
+
+} // namespace filesystem
+
+// BEGIN/END macros must be defined before including this file.
+_GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM
+
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ typedef struct ::stat stat_type;
+
+ inline file_type
+ make_file_type(const stat_type& st) noexcept
+ {
+#ifdef _GLIBCXX_HAVE_S_ISREG
+ if (S_ISREG(st.st_mode))
+ return file_type::regular;
+ else if (S_ISDIR(st.st_mode))
+ return file_type::directory;
+ else if (S_ISCHR(st.st_mode))
+ return file_type::character;
+ else if (S_ISBLK(st.st_mode))
+ return file_type::block;
+ else if (S_ISFIFO(st.st_mode))
+ return file_type::fifo;
+ else if (S_ISLNK(st.st_mode))
+ return file_type::symlink;
+ else if (S_ISSOCK(st.st_mode))
+ return file_type::socket;
+#endif
+ return file_type::unknown;
+ }
+
+ inline file_status
+ make_file_status(const stat_type& st) noexcept
+ {
+ return file_status{
+ make_file_type(st),
+ static_cast<perms>(st.st_mode) & perms::mask
+ };
+ }
+
+ inline std::filesystem::copy_options_existing_file
+ copy_file_options(copy_options opt)
+ {
+ using std::filesystem::is_set;
+ return {
+ is_set(opt, copy_options::skip_existing),
+ is_set(opt, copy_options::update_existing),
+ is_set(opt, copy_options::overwrite_existing)
+ };
+ }
+#endif // _GLIBCXX_HAVE_SYS_STAT_H
+
+_GLIBCXX_END_NAMESPACE_FILESYSTEM
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+#endif // _GLIBCXX_OPS_COMMON_H
-// Filesystem operations -*- C++ -*-
+// Filesystem TS operations -*- C++ -*-
// Copyright (C) 2014-2017 Free Software Foundation, Inc.
//
#include <stdio.h>
#include <errno.h>
#include <limits.h> // PATH_MAX
-#ifdef _GLIBCXX_HAVE_UNISTD_H
-# include <unistd.h>
-# if defined(_GLIBCXX_HAVE_SYS_STAT_H) && defined(_GLIBCXX_HAVE_SYS_TYPES_H)
-# include <sys/types.h>
-# include <sys/stat.h>
-# endif
-#endif
#ifdef _GLIBCXX_HAVE_FCNTL_H
-# include <fcntl.h>
+# include <fcntl.h> // AT_FDCWD, AT_SYMLINK_NOFOLLOW
#endif
-#ifdef _GLIBCXX_HAVE_SYS_STATVFS_H
-# include <sys/statvfs.h>
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+# include <sys/stat.h> // stat, utimensat, fchmodat
#endif
-#ifdef _GLIBCXX_USE_SENDFILE
-# include <sys/sendfile.h>
+#ifdef _GLIBCXX_HAVE_SYS_STATVFS_H
+# include <sys/statvfs.h> // statvfs
#endif
-#if _GLIBCXX_HAVE_UTIME_H
-# include <utime.h>
+#if !_GLIBCXX_USE_UTIMENSAT && _GLIBCXX_HAVE_UTIME_H
+# include <utime.h> // utime
#endif
+#define _GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM \
+ namespace experimental { namespace filesystem {
+#define _GLIBCXX_END_NAMESPACE_FILESYSTEM } }
+#include "ops-common.h"
+
#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
# undef utime
# define utime _wutime
namespace
{
- template<typename Bitmask>
- inline bool is_set(Bitmask obj, Bitmask bits)
- {
- return (obj & bits) != Bitmask::none;
- }
-}
+ using std::filesystem::is_set;
#ifdef _GLIBCXX_HAVE_SYS_STAT_H
-namespace
-{
typedef struct ::stat stat_type;
- inline fs::file_type
- make_file_type(const stat_type& st) noexcept
- {
- using fs::file_type;
-#ifdef _GLIBCXX_HAVE_S_ISREG
- if (S_ISREG(st.st_mode))
- return file_type::regular;
- else if (S_ISDIR(st.st_mode))
- return file_type::directory;
- else if (S_ISCHR(st.st_mode))
- return file_type::character;
- else if (S_ISBLK(st.st_mode))
- return file_type::block;
- else if (S_ISFIFO(st.st_mode))
- return file_type::fifo;
- else if (S_ISLNK(st.st_mode))
- return file_type::symlink;
- else if (S_ISSOCK(st.st_mode))
- return file_type::socket;
-#endif
- return file_type::unknown;
-
- }
-
- inline fs::file_status
- make_file_status(const stat_type& st) noexcept
- {
- return fs::file_status{
- make_file_type(st),
- static_cast<fs::perms>(st.st_mode) & fs::perms::mask
- };
- }
-
- inline bool
- is_not_found_errno(int err) noexcept
- {
- return err == ENOENT || err == ENOTDIR;
- }
-
- inline fs::file_time_type
- file_time(const stat_type& st, std::error_code& ec) noexcept
- {
- using namespace std::chrono;
-#ifdef _GLIBCXX_USE_ST_MTIM
- time_t s = st.st_mtim.tv_sec;
- nanoseconds ns{st.st_mtim.tv_nsec};
-#else
- time_t s = st.st_mtime;
- nanoseconds ns{};
-#endif
-
- if (s >= (nanoseconds::max().count() / 1e9))
- {
- ec = std::make_error_code(std::errc::value_too_large); // EOVERFLOW
- return fs::file_time_type::min();
- }
- ec.clear();
- return fs::file_time_type{seconds{s} + ns};
- }
-
- bool
- do_copy_file(const fs::path& from, const fs::path& to,
- fs::copy_options option,
- stat_type* from_st, stat_type* to_st,
- std::error_code& ec) noexcept
- {
- stat_type st1, st2;
- fs::file_status t, f;
-
- if (to_st == nullptr)
- {
- if (::stat(to.c_str(), &st1))
- {
- int err = errno;
- if (!is_not_found_errno(err))
- {
- ec.assign(err, std::generic_category());
- return false;
- }
- }
- else
- to_st = &st1;
- }
- else if (to_st == from_st)
- to_st = nullptr;
-
- if (to_st == nullptr)
- t = fs::file_status{fs::file_type::not_found};
- else
- t = make_file_status(*to_st);
-
- if (from_st == nullptr)
- {
- if (::stat(from.c_str(), &st2))
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
- else
- from_st = &st2;
- }
- f = make_file_status(*from_st);
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 2712. copy_file() has a number of unspecified error conditions
- if (!is_regular_file(f))
- {
- ec = std::make_error_code(std::errc::not_supported);
- return false;
- }
-
- using opts = fs::copy_options;
-
- if (exists(t))
- {
- if (!is_regular_file(t))
- {
- ec = std::make_error_code(std::errc::not_supported);
- return false;
- }
-
- if (to_st->st_dev == from_st->st_dev
- && to_st->st_ino == from_st->st_ino)
- {
- ec = std::make_error_code(std::errc::file_exists);
- return false;
- }
-
- if (is_set(option, opts::skip_existing))
- {
- ec.clear();
- return false;
- }
- else if (is_set(option, opts::update_existing))
- {
- const auto from_mtime = file_time(*from_st, ec);
- if (ec)
- return false;
- if ((from_mtime <= file_time(*to_st, ec)) || ec)
- return false;
- }
- else if (!is_set(option, opts::overwrite_existing))
- {
- ec = std::make_error_code(std::errc::file_exists);
- return false;
- }
- else if (!is_regular_file(t))
- {
- ec = std::make_error_code(std::errc::not_supported);
- return false;
- }
- }
-
- struct CloseFD {
- ~CloseFD() { if (fd != -1) ::close(fd); }
- bool close() { return ::close(std::exchange(fd, -1)) == 0; }
- int fd;
- };
-
- CloseFD in = { ::open(from.c_str(), O_RDONLY) };
- if (in.fd == -1)
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
- int oflag = O_WRONLY|O_CREAT;
- if (is_set(option, opts::overwrite_existing|opts::update_existing))
- oflag |= O_TRUNC;
- else
- oflag |= O_EXCL;
- CloseFD out = { ::open(to.c_str(), oflag, S_IWUSR) };
- if (out.fd == -1)
- {
- if (errno == EEXIST && is_set(option, opts::skip_existing))
- ec.clear();
- else
- ec.assign(errno, std::generic_category());
- return false;
- }
-
-#ifdef _GLIBCXX_USE_FCHMOD
- if (::fchmod(out.fd, from_st->st_mode))
-#elif defined _GLIBCXX_USE_FCHMODAT
- if (::fchmodat(AT_FDCWD, to.c_str(), from_st->st_mode, 0))
-#else
- if (::chmod(to.c_str(), from_st->st_mode))
-#endif
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
-
-#ifdef _GLIBCXX_USE_SENDFILE
- off_t offset = 0;
- const auto n = ::sendfile(out.fd, in.fd, &offset, from_st->st_size);
- if (n < 0 && (errno == ENOSYS || errno == EINVAL))
- {
-#endif
- __gnu_cxx::stdio_filebuf<char> sbin(in.fd, std::ios::in);
- __gnu_cxx::stdio_filebuf<char> sbout(out.fd, std::ios::out);
- if (sbin.is_open())
- in.fd = -1;
- if (sbout.is_open())
- out.fd = -1;
- if (from_st->st_size && !(std::ostream(&sbout) << &sbin))
- {
- ec = std::make_error_code(std::errc::io_error);
- return false;
- }
- if (!sbout.close() || !sbin.close())
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
-
- ec.clear();
- return true;
-
-#ifdef _GLIBCXX_USE_SENDFILE
- }
- if (n != from_st->st_size)
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
- if (!out.close() || !in.close())
- {
- ec.assign(errno, std::generic_category());
- return false;
- }
-
- ec.clear();
- return true;
-#endif
- }
-}
-#endif
+ using std::filesystem::is_not_found_errno;
+ using std::filesystem::file_time;
+ using std::filesystem::do_copy_file;
+#endif // _GLIBCXX_HAVE_SYS_STAT_H
+} // namespace
void
fs::copy(const path& from, const path& to, copy_options options,
else if (is_set(options, copy_options::create_hard_links))
create_hard_link(from, to, ec);
else if (is_directory(t))
- do_copy_file(from, to / from.filename(), options, &from_st, 0, ec);
+ do_copy_file(from.c_str(), (to / from.filename()).c_str(),
+ copy_file_options(options), &from_st, nullptr, ec);
else
{
auto ptr = exists(t) ? &to_st : &from_st;
- do_copy_file(from, to, options, &from_st, ptr, ec);
+ do_copy_file(from.c_str(), to.c_str(), copy_file_options(options),
+ &from_st, ptr, ec);
}
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
}
bool
-fs::copy_file(const path& from, const path& to, copy_options option,
+fs::copy_file(const path& from, const path& to, copy_options options,
error_code& ec) noexcept
{
#ifdef _GLIBCXX_HAVE_SYS_STAT_H
- return do_copy_file(from, to, option, nullptr, nullptr, ec);
+ return do_copy_file(from.c_str(), to.c_str(), copy_file_options(options),
+ nullptr, nullptr, ec);
#else
ec = std::make_error_code(std::errc::not_supported);
return false;
-// Class filesystem::path -*- C++ -*-
+// Class experimental::filesystem::path -*- C++ -*-
// Copyright (C) 2014-2017 Free Software Foundation, Inc.
//
#include <experimental/filesystem>
-using std::experimental::filesystem::path;
+namespace fs = std::experimental::filesystem;
+using fs::path;
-std::experimental::filesystem::filesystem_error::~filesystem_error() = default;
+fs::filesystem_error::~filesystem_error() = default;
constexpr path::value_type path::preferred_separator;
}
std::size_t
-std::experimental::filesystem::hash_value(const path& p) noexcept
+fs::hash_value(const path& p) noexcept
{
// [path.non-member]
// "If for two paths, p1 == p2 then hash_value(p1) == hash_value(p2)."
}
return seed;
}
+
+namespace std
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace filesystem
+{
+ extern string
+ fs_err_concat(const string& __what, const string& __path1,
+ const string& __path2);
+} // namespace filesystem
+
+namespace experimental::filesystem::v1 {
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ std::string filesystem_error::_M_gen_what()
+ {
+ using std::filesystem::fs_err_concat;
+ return fs_err_concat(system_error::what(), _M_path1.native(),
+ _M_path2.native());
+ }
+
+_GLIBCXX_END_NAMESPACE_CXX11
+} // namespace experimental::filesystem::v1
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
--- /dev/null
+// Class filesystem::directory_entry etc. -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _GLIBCXX_USE_CXX11_ABI
+# define _GLIBCXX_USE_CXX11_ABI 1
+#endif
+
+#include <filesystem>
+#include <experimental/filesystem>
+#include <utility>
+#include <stack>
+#include <string.h>
+#include <errno.h>
+#define _GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM namespace filesystem {
+#define _GLIBCXX_END_NAMESPACE_FILESYSTEM }
+#include "dir-common.h"
+
+namespace fs = std::filesystem;
+
+struct fs::_Dir : _Dir_base
+{
+ _Dir(const fs::path& p, bool skip_permission_denied, error_code& ec)
+ : _Dir_base(p.c_str(), skip_permission_denied, ec)
+ {
+ if (!ec)
+ path = p;
+ }
+
+ _Dir(DIR* dirp, const path& p) : _Dir_base(dirp), path(p) { }
+
+ _Dir(_Dir&&) = default;
+
+ // Returns false when the end of the directory entries is reached.
+ // Reports errors by setting ec.
+ bool advance(bool skip_permission_denied, error_code& ec) noexcept
+ {
+ if (const auto entp = _Dir_base::advance(skip_permission_denied, ec))
+ {
+ entry = fs::directory_entry{path / entp->d_name, get_file_type(*entp)};
+ return true;
+ }
+ else if (!ec)
+ {
+ // reached the end
+ entry = {};
+ }
+ return false;
+ }
+
+ bool advance(error_code& ec) noexcept { return advance(false, ec); }
+
+ // Returns false when the end of the directory entries is reached.
+ // Reports errors by throwing.
+ bool advance(bool skip_permission_denied = false)
+ {
+ error_code ec;
+ const bool ok = advance(skip_permission_denied, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "directory iterator cannot advance", ec));
+ return ok;
+ }
+
+ bool should_recurse(bool follow_symlink, error_code& ec) const
+ {
+ file_type type = entry._M_type;
+ if (type == file_type::none || type == file_type::unknown)
+ {
+ type = entry.symlink_status(ec).type();
+ if (ec)
+ return false;
+ }
+
+ if (type == file_type::directory)
+ return true;
+ if (type == file_type::symlink)
+ return follow_symlink && is_directory(entry.status(ec));
+ return false;
+ }
+
+ fs::path path;
+ directory_entry entry;
+};
+
+namespace
+{
+ template<typename Bitmask>
+ inline bool
+ is_set(Bitmask obj, Bitmask bits)
+ {
+ return (obj & bits) != Bitmask::none;
+ }
+}
+
+fs::directory_iterator::
+directory_iterator(const path& p, directory_options options, error_code* ecptr)
+{
+ const bool skip_permission_denied
+ = is_set(options, directory_options::skip_permission_denied);
+
+ error_code ec;
+ _Dir dir(p, skip_permission_denied, ec);
+
+ if (dir.dirp)
+ {
+ auto sp = std::make_shared<fs::_Dir>(std::move(dir));
+ if (sp->advance(skip_permission_denied, ec))
+ _M_dir.swap(sp);
+ }
+ if (ecptr)
+ *ecptr = ec;
+ else if (ec)
+ _GLIBCXX_THROW_OR_ABORT(fs::filesystem_error(
+ "directory iterator cannot open directory", p, ec));
+}
+
+const fs::directory_entry&
+fs::directory_iterator::operator*() const
+{
+ if (!_M_dir)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "non-dereferenceable directory iterator",
+ std::make_error_code(errc::invalid_argument)));
+ return _M_dir->entry;
+}
+
+fs::directory_iterator&
+fs::directory_iterator::operator++()
+{
+ if (!_M_dir)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "cannot advance non-dereferenceable directory iterator",
+ std::make_error_code(errc::invalid_argument)));
+ if (!_M_dir->advance())
+ _M_dir.reset();
+ return *this;
+}
+
+fs::directory_iterator&
+fs::directory_iterator::increment(error_code& ec) noexcept
+{
+ if (!_M_dir)
+ {
+ ec = std::make_error_code(errc::invalid_argument);
+ return *this;
+ }
+ if (!_M_dir->advance(ec))
+ _M_dir.reset();
+ return *this;
+}
+
+struct fs::recursive_directory_iterator::_Dir_stack : std::stack<_Dir>
+{
+ void clear() { c.clear(); }
+};
+
+fs::recursive_directory_iterator::
+recursive_directory_iterator(const path& p, directory_options options,
+ error_code* ecptr)
+: _M_options(options), _M_pending(true)
+{
+ if (DIR* dirp = ::opendir(p.c_str()))
+ {
+ if (ecptr)
+ ecptr->clear();
+ auto sp = std::make_shared<_Dir_stack>();
+ sp->push(_Dir{ dirp, p });
+ if (ecptr ? sp->top().advance(*ecptr) : sp->top().advance())
+ _M_dirs.swap(sp);
+ }
+ else
+ {
+ const int err = errno;
+ if (err == EACCES
+ && is_set(options, fs::directory_options::skip_permission_denied))
+ {
+ if (ecptr)
+ ecptr->clear();
+ return;
+ }
+
+ if (!ecptr)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "recursive directory iterator cannot open directory", p,
+ std::error_code(err, std::generic_category())));
+
+ ecptr->assign(err, std::generic_category());
+ }
+}
+
+fs::recursive_directory_iterator::~recursive_directory_iterator() = default;
+
+int
+fs::recursive_directory_iterator::depth() const
+{
+ return int(_M_dirs->size()) - 1;
+}
+
+const fs::directory_entry&
+fs::recursive_directory_iterator::operator*() const
+{
+ return _M_dirs->top().entry;
+}
+
+fs::recursive_directory_iterator&
+fs::recursive_directory_iterator::
+operator=(const recursive_directory_iterator& other) noexcept = default;
+
+fs::recursive_directory_iterator&
+fs::recursive_directory_iterator::
+operator=(recursive_directory_iterator&& other) noexcept = default;
+
+fs::recursive_directory_iterator&
+fs::recursive_directory_iterator::operator++()
+{
+ error_code ec;
+ increment(ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "cannot increment recursive directory iterator", ec));
+ return *this;
+}
+
+fs::recursive_directory_iterator&
+fs::recursive_directory_iterator::increment(error_code& ec) noexcept
+{
+ if (!_M_dirs)
+ {
+ ec = std::make_error_code(errc::invalid_argument);
+ return *this;
+ }
+
+ const bool follow
+ = is_set(_M_options, directory_options::follow_directory_symlink);
+ const bool skip_permission_denied
+ = is_set(_M_options, directory_options::skip_permission_denied);
+
+ auto& top = _M_dirs->top();
+
+ if (std::exchange(_M_pending, true) && top.should_recurse(follow, ec))
+ {
+ _Dir dir(top.entry.path(), skip_permission_denied, ec);
+ if (ec)
+ {
+ _M_dirs.reset();
+ return *this;
+ }
+ if (dir.dirp)
+ _M_dirs->push(std::move(dir));
+ }
+
+ while (!_M_dirs->top().advance(skip_permission_denied, ec) && !ec)
+ {
+ _M_dirs->pop();
+ if (_M_dirs->empty())
+ {
+ _M_dirs.reset();
+ return *this;
+ }
+ }
+ return *this;
+}
+
+void
+fs::recursive_directory_iterator::pop(error_code& ec)
+{
+ if (!_M_dirs)
+ {
+ ec = std::make_error_code(errc::invalid_argument);
+ return;
+ }
+
+ const bool skip_permission_denied
+ = is_set(_M_options, directory_options::skip_permission_denied);
+
+ do {
+ _M_dirs->pop();
+ if (_M_dirs->empty())
+ {
+ _M_dirs.reset();
+ ec.clear();
+ return;
+ }
+ } while (!_M_dirs->top().advance(skip_permission_denied, ec));
+}
+
+void
+fs::recursive_directory_iterator::pop()
+{
+ error_code ec;
+ pop(ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(_M_dirs
+ ? "recursive directory iterator cannot pop"
+ : "non-dereferenceable recursive directory iterator cannot pop",
+ ec));
+}
--- /dev/null
+// Filesystem operations -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _GLIBCXX_USE_CXX11_ABI
+# define _GLIBCXX_USE_CXX11_ABI 1
+#endif
+
+#include <filesystem>
+#include <experimental/filesystem>
+#include <functional>
+#include <ostream>
+#include <stack>
+#include <ext/stdio_filebuf.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <limits.h> // PATH_MAX
+#ifdef _GLIBCXX_HAVE_FCNTL_H
+# include <fcntl.h> // AT_FDCWD, AT_SYMLINK_NOFOLLOW
+#endif
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+# include <sys/stat.h> // stat, utimensat, fchmodat
+#endif
+#ifdef _GLIBCXX_HAVE_SYS_STATVFS_H
+# include <sys/statvfs.h> // statvfs
+#endif
+#ifdef _GLIBCXX_USE_SENDFILE
+# include <sys/sendfile.h> // sendfile
+#endif
+#if !_GLIBCXX_USE_UTIMENSAT && _GLIBCXX_HAVE_UTIME_H
+# include <utime.h> // utime
+#endif
+
+#define _GLIBCXX_BEGIN_NAMESPACE_FILESYSTEM namespace filesystem {
+#define _GLIBCXX_END_NAMESPACE_FILESYSTEM }
+#include "ops-common.h"
+
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+# undef utime
+# define utime _wutime
+# undef chmod
+# define chmod _wchmod
+#endif
+
+namespace fs = std::filesystem;
+
+fs::path
+fs::absolute(const path& p)
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ error_code ec;
+ path ret = absolute(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot make absolute path", p,
+ std::make_error_code(errc::not_supported)));
+ return ret;
+#else
+ return current_path() / p;
+#endif
+}
+
+fs::path
+fs::absolute(const path& p, error_code& ec)
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ ec = std::make_error_code(errc::not_supported);
+ return {};
+#else
+ ec.clear();
+ return current_path() / p;
+#endif
+}
+
+namespace
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ inline bool is_dot(wchar_t c) { return c == L'.'; }
+#else
+ inline bool is_dot(char c) { return c == '.'; }
+#endif
+
+ inline bool is_dot(const fs::path& path)
+ {
+ const auto& filename = path.native();
+ return filename.size() == 1 && is_dot(filename[0]);
+ }
+
+ inline bool is_dotdot(const fs::path& path)
+ {
+ const auto& filename = path.native();
+ return filename.size() == 2 && is_dot(filename[0]) && is_dot(filename[1]);
+ }
+
+ struct free_as_in_malloc
+ {
+ void operator()(void* p) const { ::free(p); }
+ };
+
+ using char_ptr = std::unique_ptr<char[], free_as_in_malloc>;
+}
+
+fs::path
+fs::canonical(const path& p, error_code& ec)
+{
+ path result;
+ const path pa = absolute(p, ec);
+ if (ec)
+ return result;
+
+#ifdef _GLIBCXX_USE_REALPATH
+ char_ptr buf{ nullptr };
+# if _XOPEN_VERSION < 700
+ // Not safe to call realpath(path, NULL)
+ buf.reset( (char*)::malloc(PATH_MAX) );
+# endif
+ if (char* rp = ::realpath(pa.c_str(), buf.get()))
+ {
+ if (buf == nullptr)
+ buf.reset(rp);
+ result.assign(rp);
+ ec.clear();
+ return result;
+ }
+ if (errno != ENAMETOOLONG)
+ {
+ ec.assign(errno, std::generic_category());
+ return result;
+ }
+#endif
+
+ if (!exists(pa, ec))
+ {
+ if (!ec)
+ ec = make_error_code(std::errc::no_such_file_or_directory);
+ return result;
+ }
+ // else: we know there are (currently) no unresolvable symlink loops
+
+ result = pa.root_path();
+
+ deque<path> cmpts;
+ for (auto& f : pa.relative_path())
+ cmpts.push_back(f);
+
+ int max_allowed_symlinks = 40;
+
+ while (!cmpts.empty() && !ec)
+ {
+ path f = std::move(cmpts.front());
+ cmpts.pop_front();
+
+ if (f.empty())
+ {
+ // ignore empty element
+ }
+ else if (is_dot(f))
+ {
+ if (!is_directory(result, ec) && !ec)
+ ec.assign(ENOTDIR, std::generic_category());
+ }
+ else if (is_dotdot(f))
+ {
+ auto parent = result.parent_path();
+ if (parent.empty())
+ result = pa.root_path();
+ else
+ result.swap(parent);
+ }
+ else
+ {
+ result /= f;
+
+ if (is_symlink(result, ec))
+ {
+ path link = read_symlink(result, ec);
+ if (!ec)
+ {
+ if (--max_allowed_symlinks == 0)
+ ec.assign(ELOOP, std::generic_category());
+ else
+ {
+ if (link.is_absolute())
+ {
+ result = link.root_path();
+ link = link.relative_path();
+ }
+ else
+ result = result.parent_path();
+
+ cmpts.insert(cmpts.begin(), link.begin(), link.end());
+ }
+ }
+ }
+ }
+ }
+
+ if (ec || !exists(result, ec))
+ result.clear();
+
+ return result;
+}
+
+fs::path
+fs::canonical(const path& p)
+{
+ error_code ec;
+ path res = canonical(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot make canonical path",
+ p, ec));
+ return res;
+}
+
+void
+fs::copy(const path& from, const path& to, copy_options options)
+{
+ error_code ec;
+ copy(from, to, options, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot copy", from, to, ec));
+}
+
+namespace std::filesystem
+{
+ // Need this as there's no 'perm_options::none' enumerator.
+ inline bool is_set(fs::perm_options obj, fs::perm_options bits)
+ {
+ return (obj & bits) != fs::perm_options{};
+ }
+}
+
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+bool
+fs::do_copy_file(const char* from, const char* to,
+ copy_options_existing_file options,
+ stat_type* from_st, stat_type* to_st,
+ std::error_code& ec) noexcept
+{
+ stat_type st1, st2;
+ fs::file_status t, f;
+
+ if (to_st == nullptr)
+ {
+ if (::stat(to, &st1))
+ {
+ const int err = errno;
+ if (!is_not_found_errno(err))
+ {
+ ec.assign(err, std::generic_category());
+ return false;
+ }
+ }
+ else
+ to_st = &st1;
+ }
+ else if (to_st == from_st)
+ to_st = nullptr;
+
+ if (to_st == nullptr)
+ t = fs::file_status{fs::file_type::not_found};
+ else
+ t = make_file_status(*to_st);
+
+ if (from_st == nullptr)
+ {
+ if (::stat(from, &st2))
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+ else
+ from_st = &st2;
+ }
+ f = make_file_status(*from_st);
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2712. copy_file() has a number of unspecified error conditions
+ if (!is_regular_file(f))
+ {
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+ }
+
+ if (exists(t))
+ {
+ if (!is_regular_file(t))
+ {
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+ }
+
+ if (to_st->st_dev == from_st->st_dev
+ && to_st->st_ino == from_st->st_ino)
+ {
+ ec = std::make_error_code(std::errc::file_exists);
+ return false;
+ }
+
+ if (options.skip)
+ {
+ ec.clear();
+ return false;
+ }
+ else if (options.update)
+ {
+ const auto from_mtime = file_time(*from_st, ec);
+ if (ec)
+ return false;
+ if ((from_mtime <= file_time(*to_st, ec)) || ec)
+ return false;
+ }
+ else if (!options.overwrite)
+ {
+ ec = std::make_error_code(std::errc::file_exists);
+ return false;
+ }
+ else if (!is_regular_file(t))
+ {
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+ }
+ }
+
+ struct CloseFD {
+ ~CloseFD() { if (fd != -1) ::close(fd); }
+ bool close() { return ::close(std::exchange(fd, -1)) == 0; }
+ int fd;
+ };
+
+ CloseFD in = { ::open(from, O_RDONLY) };
+ if (in.fd == -1)
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+ int oflag = O_WRONLY|O_CREAT;
+ if (options.overwrite || options.update)
+ oflag |= O_TRUNC;
+ else
+ oflag |= O_EXCL;
+ CloseFD out = { ::open(to, oflag, S_IWUSR) };
+ if (out.fd == -1)
+ {
+ if (errno == EEXIST && options.skip)
+ ec.clear();
+ else
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+
+#ifdef _GLIBCXX_USE_FCHMOD
+ if (::fchmod(out.fd, from_st->st_mode))
+#elif defined _GLIBCXX_USE_FCHMODAT
+ if (::fchmodat(AT_FDCWD, to, from_st->st_mode, 0))
+#else
+ if (::chmod(to, from_st->st_mode))
+#endif
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+
+#ifdef _GLIBCXX_USE_SENDFILE
+ off_t offset = 0;
+ const auto n = ::sendfile(out.fd, in.fd, &offset, from_st->st_size);
+ if (n < 0 && (errno == ENOSYS || errno == EINVAL))
+ {
+#endif // _GLIBCXX_USE_SENDFILE
+ __gnu_cxx::stdio_filebuf<char> sbin(in.fd, std::ios::in);
+ __gnu_cxx::stdio_filebuf<char> sbout(out.fd, std::ios::out);
+ if (sbin.is_open())
+ in.fd = -1;
+ if (sbout.is_open())
+ out.fd = -1;
+ if (from_st->st_size && !(std::ostream(&sbout) << &sbin))
+ {
+ ec = std::make_error_code(std::errc::io_error);
+ return false;
+ }
+ if (!sbout.close() || !sbin.close())
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+
+ ec.clear();
+ return true;
+
+#ifdef _GLIBCXX_USE_SENDFILE
+ }
+ if (n != from_st->st_size)
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+ if (!out.close() || !in.close())
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+
+ ec.clear();
+ return true;
+#endif // _GLIBCXX_USE_SENDFILE
+}
+#endif // _GLIBCXX_HAVE_SYS_STAT_H
+
+void
+fs::copy(const path& from, const path& to, copy_options options,
+ error_code& ec) noexcept
+{
+ const bool skip_symlinks = is_set(options, copy_options::skip_symlinks);
+ const bool create_symlinks = is_set(options, copy_options::create_symlinks);
+ const bool copy_symlinks = is_set(options, copy_options::copy_symlinks);
+ const bool use_lstat = create_symlinks || skip_symlinks;
+
+ file_status f, t;
+ stat_type from_st, to_st;
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2681. filesystem::copy() cannot copy symlinks
+ if (use_lstat || copy_symlinks
+ ? ::lstat(from.c_str(), &from_st)
+ : ::stat(from.c_str(), &from_st))
+ {
+ ec.assign(errno, std::generic_category());
+ return;
+ }
+ if (use_lstat
+ ? ::lstat(to.c_str(), &to_st)
+ : ::stat(to.c_str(), &to_st))
+ {
+ if (!is_not_found_errno(errno))
+ {
+ ec.assign(errno, std::generic_category());
+ return;
+ }
+ t = file_status{file_type::not_found};
+ }
+ else
+ t = make_file_status(to_st);
+ f = make_file_status(from_st);
+
+ if (exists(t) && !is_other(t) && !is_other(f)
+ && to_st.st_dev == from_st.st_dev && to_st.st_ino == from_st.st_ino)
+ {
+ ec = std::make_error_code(std::errc::file_exists);
+ return;
+ }
+ if (is_other(f) || is_other(t))
+ {
+ ec = std::make_error_code(std::errc::not_supported);
+ return;
+ }
+ if (is_directory(f) && is_regular_file(t))
+ {
+ ec = std::make_error_code(std::errc::is_a_directory);
+ return;
+ }
+
+ if (is_symlink(f))
+ {
+ if (skip_symlinks)
+ ec.clear();
+ else if (!exists(t) && copy_symlinks)
+ copy_symlink(from, to, ec);
+ else
+ // Not clear what should be done here.
+ // "Otherwise report an error as specified in Error reporting (7)."
+ ec = std::make_error_code(std::errc::invalid_argument);
+ }
+ else if (is_regular_file(f))
+ {
+ if (is_set(options, copy_options::directories_only))
+ ec.clear();
+ else if (create_symlinks)
+ create_symlink(from, to, ec);
+ else if (is_set(options, copy_options::create_hard_links))
+ create_hard_link(from, to, ec);
+ else if (is_directory(t))
+ do_copy_file(from.c_str(), (to / from.filename()).c_str(),
+ copy_file_options(options), &from_st, nullptr, ec);
+ else
+ {
+ auto ptr = exists(t) ? &to_st : &from_st;
+ do_copy_file(from.c_str(), to.c_str(), copy_file_options(options),
+ &from_st, ptr, ec);
+ }
+ }
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2682. filesystem::copy() won't create a symlink to a directory
+ else if (is_directory(f) && create_symlinks)
+ ec = std::make_error_code(errc::is_a_directory);
+ else if (is_directory(f) && (is_set(options, copy_options::recursive)
+ || options == copy_options::none))
+ {
+ if (!exists(t))
+ if (!create_directory(to, from, ec))
+ return;
+ // set an unused bit in options to disable further recursion
+ if (!is_set(options, copy_options::recursive))
+ options |= static_cast<copy_options>(4096);
+ for (const directory_entry& x : directory_iterator(from))
+ copy(x.path(), to/x.path().filename(), options, ec);
+ }
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2683. filesystem::copy() says "no effects"
+ else
+ ec.clear();
+}
+
+bool
+fs::copy_file(const path& from, const path& to, copy_options option)
+{
+ error_code ec;
+ bool result = copy_file(from, to, option, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot copy file", from, to,
+ ec));
+ return result;
+}
+
+bool
+fs::copy_file(const path& from, const path& to, copy_options options,
+ error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ return do_copy_file(from.c_str(), to.c_str(), copy_file_options(options),
+ nullptr, nullptr, ec);
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+#endif
+}
+
+
+void
+fs::copy_symlink(const path& existing_symlink, const path& new_symlink)
+{
+ error_code ec;
+ copy_symlink(existing_symlink, new_symlink, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot copy symlink",
+ existing_symlink, new_symlink, ec));
+}
+
+void
+fs::copy_symlink(const path& existing_symlink, const path& new_symlink,
+ error_code& ec) noexcept
+{
+ auto p = read_symlink(existing_symlink, ec);
+ if (ec)
+ return;
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ if (is_directory(p))
+ {
+ create_directory_symlink(p, new_symlink, ec);
+ return;
+ }
+#endif
+ create_symlink(p, new_symlink, ec);
+}
+
+
+bool
+fs::create_directories(const path& p)
+{
+ error_code ec;
+ bool result = create_directories(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create directories", p,
+ ec));
+ return result;
+}
+
+bool
+fs::create_directories(const path& p, error_code& ec) noexcept
+{
+ if (p.empty())
+ {
+ ec = std::make_error_code(errc::invalid_argument);
+ return false;
+ }
+ std::stack<path> missing;
+ path pp = p;
+
+ while (pp.has_filename() && status(pp, ec).type() == file_type::not_found)
+ {
+ ec.clear();
+ const auto& filename = pp.filename();
+ if (!is_dot(filename) && !is_dotdot(filename))
+ missing.push(pp);
+ pp = pp.parent_path();
+
+ if (missing.size() > 1000) // sanity check
+ {
+ ec = std::make_error_code(std::errc::filename_too_long);
+ return false;
+ }
+ }
+
+ if (ec || missing.empty())
+ return false;
+
+ do
+ {
+ const path& top = missing.top();
+ create_directory(top, ec);
+ if (ec && is_directory(top))
+ ec.clear();
+ missing.pop();
+ }
+ while (!missing.empty() && !ec);
+
+ return missing.empty();
+}
+
+namespace
+{
+ bool
+ create_dir(const fs::path& p, fs::perms perm, std::error_code& ec)
+ {
+ bool created = false;
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ ::mode_t mode = static_cast<std::underlying_type_t<fs::perms>>(perm);
+ if (::mkdir(p.c_str(), mode))
+ {
+ const int err = errno;
+ if (err != EEXIST || !is_directory(p))
+ ec.assign(err, std::generic_category());
+ else
+ ec.clear();
+ }
+ else
+ {
+ ec.clear();
+ created = true;
+ }
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+ return created;
+ }
+} // namespace
+
+bool
+fs::create_directory(const path& p)
+{
+ error_code ec;
+ bool result = create_directory(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create directory", p,
+ ec));
+ return result;
+}
+
+bool
+fs::create_directory(const path& p, error_code& ec) noexcept
+{
+ return create_dir(p, perms::all, ec);
+}
+
+
+bool
+fs::create_directory(const path& p, const path& attributes)
+{
+ error_code ec;
+ bool result = create_directory(p, attributes, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create directory", p,
+ ec));
+ return result;
+}
+
+bool
+fs::create_directory(const path& p, const path& attributes,
+ error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ stat_type st;
+ if (::stat(attributes.c_str(), &st))
+ {
+ ec.assign(errno, std::generic_category());
+ return false;
+ }
+ return create_dir(p, static_cast<perms>(st.st_mode), ec);
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+#endif
+}
+
+
+void
+fs::create_directory_symlink(const path& to, const path& new_symlink)
+{
+ error_code ec;
+ create_directory_symlink(to, new_symlink, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create directory symlink",
+ to, new_symlink, ec));
+}
+
+void
+fs::create_directory_symlink(const path& to, const path& new_symlink,
+ error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ ec = std::make_error_code(std::errc::not_supported);
+#else
+ create_symlink(to, new_symlink, ec);
+#endif
+}
+
+
+void
+fs::create_hard_link(const path& to, const path& new_hard_link)
+{
+ error_code ec;
+ create_hard_link(to, new_hard_link, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create hard link",
+ to, new_hard_link, ec));
+}
+
+void
+fs::create_hard_link(const path& to, const path& new_hard_link,
+ error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+ if (::link(to.c_str(), new_hard_link.c_str()))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+}
+
+void
+fs::create_symlink(const path& to, const path& new_symlink)
+{
+ error_code ec;
+ create_symlink(to, new_symlink, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot create symlink",
+ to, new_symlink, ec));
+}
+
+void
+fs::create_symlink(const path& to, const path& new_symlink,
+ error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+ if (::symlink(to.c_str(), new_symlink.c_str()))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+}
+
+
+fs::path
+fs::current_path()
+{
+ error_code ec;
+ path p = current_path(ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot get current path", ec));
+ return p;
+}
+
+fs::path
+fs::current_path(error_code& ec)
+{
+ path p;
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+#ifdef __GLIBC__
+ if (char_ptr cwd = char_ptr{::getcwd(nullptr, 0)})
+ {
+ p.assign(cwd.get());
+ ec.clear();
+ }
+ else
+ ec.assign(errno, std::generic_category());
+#else
+ long path_max = pathconf(".", _PC_PATH_MAX);
+ size_t size;
+ if (path_max == -1)
+ size = 1024;
+ else if (path_max > 10240)
+ size = 10240;
+ else
+ size = path_max;
+ for (char_ptr buf; p.empty(); size *= 2)
+ {
+ buf.reset((char*)malloc(size));
+ if (buf)
+ {
+ if (getcwd(buf.get(), size))
+ {
+ p.assign(buf.get());
+ ec.clear();
+ }
+ else if (errno != ERANGE)
+ {
+ ec.assign(errno, std::generic_category());
+ return {};
+ }
+ }
+ else
+ {
+ ec = std::make_error_code(std::errc::not_enough_memory);
+ return {};
+ }
+ }
+#endif // __GLIBC__
+#else // _GLIBCXX_HAVE_UNISTD_H
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+ return p;
+}
+
+void
+fs::current_path(const path& p)
+{
+ error_code ec;
+ current_path(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot set current path", ec));
+}
+
+void
+fs::current_path(const path& p, error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+ if (::chdir(p.c_str()))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+}
+
+bool
+fs::equivalent(const path& p1, const path& p2)
+{
+ error_code ec;
+ auto result = equivalent(p1, p2, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot check file equivalence",
+ p1, p2, ec));
+ return result;
+}
+
+bool
+fs::equivalent(const path& p1, const path& p2, error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ int err = 0;
+ file_status s1, s2;
+ stat_type st1, st2;
+ if (::stat(p1.c_str(), &st1) == 0)
+ s1 = make_file_status(st1);
+ else if (is_not_found_errno(errno))
+ s1.type(file_type::not_found);
+ else
+ err = errno;
+
+ if (::stat(p2.c_str(), &st2) == 0)
+ s2 = make_file_status(st2);
+ else if (is_not_found_errno(errno))
+ s2.type(file_type::not_found);
+ else
+ err = errno;
+
+ if (exists(s1) && exists(s2))
+ {
+ if (is_other(s1) && is_other(s2))
+ {
+ ec = std::make_error_code(std::errc::not_supported);
+ return false;
+ }
+ ec.clear();
+ if (is_other(s1) || is_other(s2))
+ return false;
+ return st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino;
+ }
+ else if (!exists(s1) && !exists(s2))
+ ec = std::make_error_code(std::errc::no_such_file_or_directory);
+ else if (err)
+ ec.assign(err, std::generic_category());
+ else
+ ec.clear();
+ return false;
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+ return false;
+}
+
+std::uintmax_t
+fs::file_size(const path& p)
+{
+ error_code ec;
+ auto sz = file_size(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot get file size", p, ec));
+ return sz;
+}
+
+namespace
+{
+ template<typename Accessor, typename T>
+ inline T
+ do_stat(const fs::path& p, std::error_code& ec, Accessor f, T deflt)
+ {
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ fs::stat_type st;
+ if (::stat(p.c_str(), &st))
+ {
+ ec.assign(errno, std::generic_category());
+ return deflt;
+ }
+ ec.clear();
+ return f(st);
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+ return deflt;
+#endif
+ }
+}
+
+std::uintmax_t
+fs::file_size(const path& p, error_code& ec) noexcept
+{
+ struct S
+ {
+ S(const stat_type& st) : type(make_file_type(st)), size(st.st_size) { }
+ S() : type(file_type::not_found) { }
+ file_type type;
+ size_t size;
+ };
+ auto s = do_stat(p, ec, [](const auto& st) { return S{st}; }, S{});
+ if (s.type == file_type::regular)
+ return s.size;
+ if (!ec)
+ {
+ if (s.type == file_type::directory)
+ ec = std::make_error_code(std::errc::is_a_directory);
+ else
+ ec = std::make_error_code(std::errc::not_supported);
+ }
+ return -1;
+}
+
+std::uintmax_t
+fs::hard_link_count(const path& p)
+{
+ error_code ec;
+ auto count = hard_link_count(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot get link count", p, ec));
+ return count;
+}
+
+std::uintmax_t
+fs::hard_link_count(const path& p, error_code& ec) noexcept
+{
+ return do_stat(p, ec, std::mem_fn(&stat::st_nlink),
+ static_cast<uintmax_t>(-1));
+}
+
+bool
+fs::is_empty(const path& p)
+{
+ error_code ec;
+ bool e = is_empty(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot check if file is empty",
+ p, ec));
+ return e;
+}
+
+bool
+fs::is_empty(const path& p, error_code& ec) noexcept
+{
+ auto s = status(p, ec);
+ if (ec)
+ return false;
+ bool empty = fs::is_directory(s)
+ ? fs::directory_iterator(p, ec) == fs::directory_iterator()
+ : fs::file_size(p, ec) == 0;
+ return ec ? false : empty;
+}
+
+fs::file_time_type
+fs::last_write_time(const path& p)
+{
+ error_code ec;
+ auto t = last_write_time(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot get file time", p, ec));
+ return t;
+}
+
+fs::file_time_type
+fs::last_write_time(const path& p, error_code& ec) noexcept
+{
+ return do_stat(p, ec, [&ec](const auto& st) { return file_time(st, ec); },
+ file_time_type::min());
+}
+
+void
+fs::last_write_time(const path& p, file_time_type new_time)
+{
+ error_code ec;
+ last_write_time(p, new_time, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot set file time", p, ec));
+}
+
+void
+fs::last_write_time(const path& p __attribute__((__unused__)),
+ file_time_type new_time, error_code& ec) noexcept
+{
+ auto d = new_time.time_since_epoch();
+ auto s = chrono::duration_cast<chrono::seconds>(d);
+#if _GLIBCXX_USE_UTIMENSAT
+ auto ns = chrono::duration_cast<chrono::nanoseconds>(d - s);
+ if (ns < ns.zero()) // tv_nsec must be non-negative and less than 10e9.
+ {
+ --s;
+ ns += chrono::seconds(1);
+ }
+ struct ::timespec ts[2];
+ ts[0].tv_sec = 0;
+ ts[0].tv_nsec = UTIME_OMIT;
+ ts[1].tv_sec = static_cast<std::time_t>(s.count());
+ ts[1].tv_nsec = static_cast<long>(ns.count());
+ if (::utimensat(AT_FDCWD, p.c_str(), ts, 0))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#elif _GLIBCXX_HAVE_UTIME_H
+ ::utimbuf times;
+ times.modtime = s.count();
+ times.actime = do_stat(p, ec, [](const auto& st) { return st.st_atime; },
+ times.modtime);
+ if (::utime(p.c_str(), ×))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+}
+
+void
+fs::permissions(const path& p, perms prms, perm_options opts)
+{
+ error_code ec;
+ permissions(p, prms, opts, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot set permissions", p, ec));
+}
+
+void
+fs::permissions(const path& p, perms prms, perm_options opts,
+ error_code& ec) noexcept
+{
+ const bool replace = is_set(opts, perm_options::replace);
+ const bool add = is_set(opts, perm_options::add);
+ const bool remove = is_set(opts, perm_options::remove);
+ const bool nofollow = is_set(opts, perm_options::nofollow);
+ if (((int)replace + (int)add + (int)remove) != 1)
+ {
+ ec = std::make_error_code(std::errc::invalid_argument);
+ return;
+ }
+
+ prms &= perms::mask;
+
+ file_status st;
+ if (add || remove || nofollow)
+ {
+ st = nofollow ? symlink_status(p, ec) : status(p, ec);
+ if (ec)
+ return;
+ auto curr = st.permissions();
+ if (add)
+ prms |= curr;
+ else if (remove)
+ prms = curr & ~prms;
+ }
+
+ int err = 0;
+#if _GLIBCXX_USE_FCHMODAT
+ const int flag = (nofollow && is_symlink(st)) ? AT_SYMLINK_NOFOLLOW : 0;
+ if (::fchmodat(AT_FDCWD, p.c_str(), static_cast<mode_t>(prms), flag))
+ err = errno;
+#else
+ if (nofollow && is_symlink(st))
+ ec = std::make_error_code(std::errc::operation_not_supported);
+ else if (::chmod(p.c_str(), static_cast<mode_t>(prms)))
+ err = errno;
+#endif
+
+ if (err)
+ ec.assign(err, std::generic_category());
+ else
+ ec.clear();
+}
+
+fs::path
+fs::proximate(const path& p, const path& base)
+{
+ return weakly_canonical(p).lexically_proximate(weakly_canonical(base));
+}
+
+fs::path
+fs::proximate(const path& p, const path& base, error_code& ec)
+{
+ path result;
+ const auto p2 = weakly_canonical(p, ec);
+ if (!ec)
+ {
+ const auto base2 = weakly_canonical(base, ec);
+ if (!ec)
+ result = p2.lexically_proximate(base2);
+ }
+ return result;
+}
+
+fs::path
+fs::read_symlink(const path& p)
+{
+ error_code ec;
+ path tgt = read_symlink(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("read_symlink", p, ec));
+ return tgt;
+}
+
+fs::path fs::read_symlink(const path& p, error_code& ec)
+{
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+ stat_type st;
+ if (::lstat(p.c_str(), &st))
+ {
+ ec.assign(errno, std::generic_category());
+ return {};
+ }
+ std::string buf(st.st_size, '\0');
+ ssize_t len = ::readlink(p.c_str(), &buf.front(), buf.size());
+ if (len == -1)
+ {
+ ec.assign(errno, std::generic_category());
+ return {};
+ }
+ ec.clear();
+ return path{buf.data(), buf.data()+len};
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+ return {};
+#endif
+}
+
+fs::path
+fs::relative(const path& p, const path& base)
+{
+ return weakly_canonical(p).lexically_relative(weakly_canonical(base));
+}
+
+fs::path
+fs::relative(const path& p, const path& base, error_code& ec)
+{
+ auto result = weakly_canonical(p, ec);
+ fs::path cbase;
+ if (!ec)
+ cbase = weakly_canonical(base, ec);
+ if (!ec)
+ result = result.lexically_relative(cbase);
+ if (ec)
+ result.clear();
+ return result;
+}
+
+bool
+fs::remove(const path& p)
+{
+ error_code ec;
+ bool result = fs::remove(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot remove", p, ec));
+ return result;
+}
+
+bool
+fs::remove(const path& p, error_code& ec) noexcept
+{
+ if (exists(symlink_status(p, ec)))
+ {
+ if (::remove(p.c_str()) == 0)
+ {
+ ec.clear();
+ return true;
+ }
+ else
+ ec.assign(errno, std::generic_category());
+ }
+ return false;
+}
+
+
+std::uintmax_t
+fs::remove_all(const path& p)
+{
+ error_code ec;
+ bool result = remove_all(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot remove all", p, ec));
+ return result;
+}
+
+std::uintmax_t
+fs::remove_all(const path& p, error_code& ec) noexcept
+{
+ auto fs = symlink_status(p, ec);
+ uintmax_t count = 0;
+ if (!ec && fs.type() == file_type::directory)
+ for (directory_iterator d(p, ec), end; !ec && d != end; ++d)
+ count += fs::remove_all(d->path(), ec);
+ if (ec)
+ return -1;
+ return fs::remove(p, ec) ? ++count : -1; // fs:remove() calls ec.clear()
+}
+
+void
+fs::rename(const path& from, const path& to)
+{
+ error_code ec;
+ rename(from, to, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot rename", from, to, ec));
+}
+
+void
+fs::rename(const path& from, const path& to, error_code& ec) noexcept
+{
+ if (::rename(from.c_str(), to.c_str()))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+}
+
+void
+fs::resize_file(const path& p, uintmax_t size)
+{
+ error_code ec;
+ resize_file(p, size, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot resize file", p, ec));
+}
+
+void
+fs::resize_file(const path& p, uintmax_t size, error_code& ec) noexcept
+{
+#ifdef _GLIBCXX_HAVE_UNISTD_H
+ if (size > static_cast<uintmax_t>(std::numeric_limits<off_t>::max()))
+ ec.assign(EINVAL, std::generic_category());
+ else if (::truncate(p.c_str(), size))
+ ec.assign(errno, std::generic_category());
+ else
+ ec.clear();
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+}
+
+
+fs::space_info
+fs::space(const path& p)
+{
+ error_code ec;
+ space_info s = space(p, ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot get free space", p, ec));
+ return s;
+}
+
+fs::space_info
+fs::space(const path& p, error_code& ec) noexcept
+{
+ space_info info = {
+ static_cast<uintmax_t>(-1),
+ static_cast<uintmax_t>(-1),
+ static_cast<uintmax_t>(-1)
+ };
+#ifdef _GLIBCXX_HAVE_SYS_STATVFS_H
+ struct ::statvfs f;
+ if (::statvfs(p.c_str(), &f))
+ ec.assign(errno, std::generic_category());
+ else
+ {
+ info = space_info{
+ f.f_blocks * f.f_frsize,
+ f.f_bfree * f.f_frsize,
+ f.f_bavail * f.f_frsize
+ };
+ ec.clear();
+ }
+#else
+ ec = std::make_error_code(std::errc::not_supported);
+#endif
+ return info;
+}
+
+#ifdef _GLIBCXX_HAVE_SYS_STAT_H
+fs::file_status
+fs::status(const fs::path& p, error_code& ec) noexcept
+{
+ file_status status;
+ stat_type st;
+ if (::stat(p.c_str(), &st))
+ {
+ int err = errno;
+ ec.assign(err, std::generic_category());
+ if (is_not_found_errno(err))
+ status.type(file_type::not_found);
+#ifdef EOVERFLOW
+ else if (err == EOVERFLOW)
+ status.type(file_type::unknown);
+#endif
+ }
+ else
+ {
+ status = make_file_status(st);
+ ec.clear();
+ }
+ return status;
+}
+
+fs::file_status
+fs::symlink_status(const fs::path& p, std::error_code& ec) noexcept
+{
+ file_status status;
+ stat_type st;
+ if (::lstat(p.c_str(), &st))
+ {
+ int err = errno;
+ ec.assign(err, std::generic_category());
+ if (is_not_found_errno(err))
+ status.type(file_type::not_found);
+ }
+ else
+ {
+ status = make_file_status(st);
+ ec.clear();
+ }
+ return status;
+}
+#endif
+
+fs::file_status
+fs::status(const fs::path& p)
+{
+ std::error_code ec;
+ auto result = status(p, ec);
+ if (result.type() == file_type::none)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("status", p, ec));
+ return result;
+}
+
+fs::file_status
+fs::symlink_status(const fs::path& p)
+{
+ std::error_code ec;
+ auto result = symlink_status(p, ec);
+ if (result.type() == file_type::none)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("symlink_status", p, ec));
+ return result;
+}
+
+fs::path fs::temp_directory_path()
+{
+ error_code ec;
+ path tmp = temp_directory_path(ec);
+ if (ec)
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error("temp_directory_path", ec));
+ return tmp;
+}
+
+fs::path fs::temp_directory_path(error_code& ec)
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ ec = std::make_error_code(std::errc::not_supported);
+ return {}; // TODO
+#else
+ const char* tmpdir = nullptr;
+ const char* env[] = { "TMPDIR", "TMP", "TEMP", "TEMPDIR", nullptr };
+ for (auto e = env; tmpdir == nullptr && *e != nullptr; ++e)
+ tmpdir = ::getenv(*e);
+ path p = tmpdir ? tmpdir : "/tmp";
+ auto st = status(p, ec);
+ if (!ec)
+ {
+ if (is_directory(st))
+ {
+ ec.clear();
+ return p;
+ }
+ else
+ ec = std::make_error_code(std::errc::not_a_directory);
+ }
+ return {};
+#endif
+}
+
+fs::path
+fs::weakly_canonical(const path& p)
+{
+ path result;
+ if (exists(status(p)))
+ return canonical(p);
+
+ path tmp;
+ auto iter = p.begin(), end = p.end();
+ // find leading elements of p that exist:
+ while (iter != end)
+ {
+ tmp = result / *iter;
+ if (exists(status(tmp)))
+ swap(result, tmp);
+ else
+ break;
+ ++iter;
+ }
+ // canonicalize:
+ result = canonical(result);
+ // append the non-existing elements:
+ while (iter != end)
+ result /= *iter++;
+ // normalize:
+ return result.lexically_normal();
+}
+
+fs::path
+fs::weakly_canonical(const path& p, error_code& ec)
+{
+ path result;
+ file_status st = status(p, ec);
+ if (exists(st))
+ return canonical(p, ec);
+ else if (status_known(st))
+ ec.clear();
+ else
+ return result;
+
+ path tmp;
+ auto iter = p.begin(), end = p.end();
+ // find leading elements of p that exist:
+ while (iter != end)
+ {
+ tmp = result / *iter;
+ st = status(tmp, ec);
+ if (exists(st))
+ swap(result, tmp);
+ else
+ {
+ if (status_known(st))
+ ec.clear();
+ break;
+ }
+ ++iter;
+ }
+ // canonicalize:
+ if (!ec)
+ result = canonical(result, ec);
+ if (ec)
+ result.clear();
+ else
+ {
+ // append the non-existing elements:
+ while (iter != end)
+ result /= *iter++;
+ // normalize:
+ result = result.lexically_normal();
+ }
+ return result;
+}
--- /dev/null
+// Class filesystem::path -*- C++ -*-
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef _GLIBCXX_USE_CXX11_ABI
+# define _GLIBCXX_USE_CXX11_ABI 1
+#endif
+
+#include <filesystem>
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+# include <algorithm>
+#endif
+
+namespace fs = std::filesystem;
+using fs::path;
+
+fs::filesystem_error::~filesystem_error() = default;
+
+constexpr path::value_type path::preferred_separator;
+
+path&
+path::remove_filename()
+{
+ if (_M_type == _Type::_Multi)
+ {
+ if (!_M_cmpts.empty())
+ {
+ auto cmpt = std::prev(_M_cmpts.end());
+ if (cmpt->_M_type == _Type::_Filename && !cmpt->empty())
+ {
+ _M_pathname.erase(cmpt->_M_pos);
+ auto prev = std::prev(cmpt);
+ if (prev->_M_type == _Type::_Root_dir
+ || prev->_M_type == _Type::_Root_name)
+ {
+ _M_cmpts.erase(cmpt);
+ _M_trim();
+ }
+ else
+ cmpt->clear();
+ }
+ }
+ }
+ else if (_M_type == _Type::_Filename)
+ clear();
+ if (!empty() && _M_pathname.back() != '/')
+ throw 1;
+ return *this;
+}
+
+path&
+path::replace_filename(const path& replacement)
+{
+ remove_filename();
+ operator/=(replacement);
+ return *this;
+}
+
+path&
+path::replace_extension(const path& replacement)
+{
+ auto ext = _M_find_extension();
+ // Any existing extension() is removed
+ if (ext.first && ext.second != string_type::npos)
+ {
+ if (ext.first == &_M_pathname)
+ _M_pathname.erase(ext.second);
+ else
+ {
+ const auto& back = _M_cmpts.back();
+ if (ext.first != &back._M_pathname)
+ _GLIBCXX_THROW_OR_ABORT(
+ std::logic_error("path::replace_extension failed"));
+ _M_pathname.erase(back._M_pos + ext.second);
+ }
+ }
+ // If replacement is not empty and does not begin with a dot character,
+ // a dot character is appended
+ if (!replacement.empty() && replacement.native()[0] != '.')
+ _M_pathname += '.';
+ operator+=(replacement);
+ return *this;
+}
+
+namespace
+{
+ template<typename Iter1, typename Iter2>
+ int do_compare(Iter1 begin1, Iter1 end1, Iter2 begin2, Iter2 end2)
+ {
+ int cmpt = 1;
+ while (begin1 != end1 && begin2 != end2)
+ {
+ if (begin1->native() < begin2->native())
+ return -cmpt;
+ if (begin1->native() > begin2->native())
+ return +cmpt;
+ ++begin1;
+ ++begin2;
+ ++cmpt;
+ }
+ if (begin1 == end1)
+ {
+ if (begin2 == end2)
+ return 0;
+ return -cmpt;
+ }
+ return +cmpt;
+ }
+}
+
+int
+path::compare(const path& p) const noexcept
+{
+ struct CmptRef
+ {
+ const path* ptr;
+ const string_type& native() const noexcept { return ptr->native(); }
+ };
+
+ if (empty() && p.empty())
+ return 0;
+ else if (_M_type == _Type::_Multi && p._M_type == _Type::_Multi)
+ return do_compare(_M_cmpts.begin(), _M_cmpts.end(),
+ p._M_cmpts.begin(), p._M_cmpts.end());
+ else if (_M_type == _Type::_Multi)
+ {
+ CmptRef c[1] = { { &p } };
+ return do_compare(_M_cmpts.begin(), _M_cmpts.end(), c, c+1);
+ }
+ else if (p._M_type == _Type::_Multi)
+ {
+ CmptRef c[1] = { { this } };
+ return do_compare(c, c+1, p._M_cmpts.begin(), p._M_cmpts.end());
+ }
+ else
+ return _M_pathname.compare(p._M_pathname);
+}
+
+path
+path::root_name() const
+{
+ path __ret;
+ if (_M_type == _Type::_Root_name)
+ __ret = *this;
+ else if (_M_cmpts.size() && _M_cmpts.begin()->_M_type == _Type::_Root_name)
+ __ret = *_M_cmpts.begin();
+ return __ret;
+}
+
+path
+path::root_directory() const
+{
+ path __ret;
+ if (_M_type == _Type::_Root_dir)
+ {
+ __ret._M_type = _Type::_Root_dir;
+ __ret._M_pathname.assign(1, preferred_separator);
+ }
+ else if (!_M_cmpts.empty())
+ {
+ auto __it = _M_cmpts.begin();
+ if (__it->_M_type == _Type::_Root_name)
+ ++__it;
+ if (__it != _M_cmpts.end() && __it->_M_type == _Type::_Root_dir)
+ __ret = *__it;
+ }
+ return __ret;
+}
+
+path
+path::root_path() const
+{
+ path __ret;
+ if (_M_type == _Type::_Root_name)
+ __ret = *this;
+ else if (_M_type == _Type::_Root_dir)
+ {
+ __ret._M_pathname.assign(1, preferred_separator);
+ __ret._M_type = _Type::_Root_dir;
+ }
+ else if (!_M_cmpts.empty())
+ {
+ auto __it = _M_cmpts.begin();
+ if (__it->_M_type == _Type::_Root_name)
+ {
+ __ret = *__it++;
+ if (__it != _M_cmpts.end() && __it->_M_type == _Type::_Root_dir)
+ __ret /= *__it;
+ }
+ else if (__it->_M_type == _Type::_Root_dir)
+ __ret = *__it;
+ }
+ return __ret;
+}
+
+path
+path::relative_path() const
+{
+ path __ret;
+ if (_M_type == _Type::_Filename)
+ __ret = *this;
+ else if (!_M_cmpts.empty())
+ {
+ auto __it = _M_cmpts.begin();
+ if (__it->_M_type == _Type::_Root_name)
+ ++__it;
+ if (__it != _M_cmpts.end() && __it->_M_type == _Type::_Root_dir)
+ ++__it;
+ if (__it != _M_cmpts.end())
+ __ret.assign(_M_pathname.substr(__it->_M_pos));
+ }
+ return __ret;
+}
+
+path
+path::parent_path() const
+{
+ path __ret;
+ if (!has_relative_path())
+ __ret = *this;
+ else if (_M_cmpts.size() >= 2)
+ {
+ for (auto __it = _M_cmpts.begin(), __end = std::prev(_M_cmpts.end());
+ __it != __end; ++__it)
+ {
+ __ret /= *__it;
+ }
+ }
+ return __ret;
+}
+
+bool
+path::has_root_name() const
+{
+ if (_M_type == _Type::_Root_name)
+ return true;
+ if (!_M_cmpts.empty() && _M_cmpts.begin()->_M_type == _Type::_Root_name)
+ return true;
+ return false;
+}
+
+bool
+path::has_root_directory() const
+{
+ if (_M_type == _Type::_Root_dir)
+ return true;
+ if (!_M_cmpts.empty())
+ {
+ auto __it = _M_cmpts.begin();
+ if (__it->_M_type == _Type::_Root_name)
+ ++__it;
+ if (__it != _M_cmpts.end() && __it->_M_type == _Type::_Root_dir)
+ return true;
+ }
+ return false;
+}
+
+bool
+path::has_root_path() const
+{
+ if (_M_type == _Type::_Root_name || _M_type == _Type::_Root_dir)
+ return true;
+ if (!_M_cmpts.empty())
+ {
+ auto __type = _M_cmpts.front()._M_type;
+ if (__type == _Type::_Root_name || __type == _Type::_Root_dir)
+ return true;
+ }
+ return false;
+}
+
+bool
+path::has_relative_path() const
+{
+ if (_M_type == _Type::_Filename)
+ return true;
+ if (!_M_cmpts.empty())
+ {
+ auto __it = _M_cmpts.begin();
+ if (__it->_M_type == _Type::_Root_name)
+ ++__it;
+ if (__it != _M_cmpts.end() && __it->_M_type == _Type::_Root_dir)
+ ++__it;
+ if (__it != _M_cmpts.end())
+ return true;
+ }
+ return false;
+}
+
+
+bool
+path::has_parent_path() const
+{
+ if (!has_relative_path())
+ return !empty();
+ return _M_cmpts.size() >= 2;
+}
+
+bool
+path::has_filename() const
+{
+ if (empty())
+ return false;
+ if (_M_type == _Type::_Filename)
+ return !_M_pathname.empty();
+ if (_M_type == _Type::_Multi)
+ {
+ if (_M_pathname.back() == preferred_separator)
+ return false;
+ return _M_cmpts.back().has_filename();
+ }
+ return false;
+}
+
+namespace
+{
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ inline bool is_dot(wchar_t c) { return c == L'.'; }
+#else
+ inline bool is_dot(char c) { return c == '.'; }
+#endif
+
+ inline bool is_dot(const fs::path& path)
+ {
+ const auto& filename = path.native();
+ return filename.size() == 1 && is_dot(filename[0]);
+ }
+
+ inline bool is_dotdot(const fs::path& path)
+ {
+ const auto& filename = path.native();
+ return filename.size() == 2 && is_dot(filename[0]) && is_dot(filename[1]);
+ }
+} // namespace
+
+path
+path::lexically_normal() const
+{
+ /*
+ C++17 [fs.path.generic] p6
+ - If the path is empty, stop.
+ - Replace each slash character in the root-name with a preferred-separator.
+ - Replace each directory-separator with a preferred-separator.
+ - Remove each dot filename and any immediately following directory-separator.
+ - As long as any appear, remove a non-dot-dot filename immediately followed
+ by a directory-separator and a dot-dot filename, along with any immediately
+ following directory-separator.
+ - If the last filename is dot-dot, remove any trailing directory-separator.
+ - If the path is empty, add a dot.
+ */
+ path ret;
+ // If the path is empty, stop.
+ if (empty())
+ return ret;
+ for (auto& p : *this)
+ {
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ // Replace each slash character in the root-name
+ if (p.is_root_name())
+ {
+ string_type s = p.native();
+ std::replace(s.begin(), s.end(), L'/', L'\\');
+ ret /= s;
+ continue;
+ }
+#endif
+ if (is_dotdot(p))
+ {
+ if (ret.has_filename() && !is_dotdot(ret.filename()))
+ ret.remove_filename();
+ else
+ ret /= p;
+ }
+ else if (is_dot(p))
+ ret /= path();
+ else
+ ret /= p;
+ }
+
+ if (ret._M_cmpts.size() >= 2)
+ {
+ auto back = std::prev(ret.end());
+ // If the last filename is dot-dot, ...
+ if (back->empty() && is_dotdot(*std::prev(back)))
+ // ... remove any trailing directory-separator.
+ ret = ret.parent_path();
+ }
+ // If the path is empty, add a dot.
+ else if (ret.empty())
+ ret = ".";
+
+ return ret;
+}
+
+path
+path::lexically_relative(const path& base) const
+{
+ path ret;
+ if (root_name() != base.root_name())
+ return ret;
+ if (is_absolute() != base.is_absolute())
+ return ret;
+ if (!has_root_directory() && base.has_root_directory())
+ return ret;
+ auto [a, b] = std::mismatch(begin(), end(), base.begin(), base.end());
+ if (a == end() && b == base.end())
+ ret = ".";
+ else
+ {
+ int n = 0;
+ for (; b != base.end(); ++b)
+ {
+ const path& p = *b;
+ if (is_dotdot(p))
+ --n;
+ else if (!is_dot(p))
+ ++n;
+ }
+ if (n >= 0)
+ {
+ const path dotdot("..");
+ while (n--)
+ ret /= dotdot;
+ for (; a != end(); ++a)
+ ret /= *a;
+ }
+ }
+ return ret;
+}
+
+path
+path::lexically_proximate(const path& base) const
+{
+ path rel = lexically_relative(base);
+ if (rel.empty())
+ rel = *this;
+ return rel;
+}
+
+std::pair<const path::string_type*, std::size_t>
+path::_M_find_extension() const
+{
+ const std::string* s = nullptr;
+
+ if (_M_type == _Type::_Filename)
+ s = &_M_pathname;
+ else if (_M_type == _Type::_Multi && !_M_cmpts.empty())
+ {
+ const auto& c = _M_cmpts.back();
+ if (c._M_type == _Type::_Filename)
+ s = &c._M_pathname;
+ }
+
+ if (s)
+ {
+ if (auto sz = s->size())
+ {
+ if (sz <= 2 && (*s)[0] == '.')
+ return { s, string_type::npos };
+ const auto pos = s->rfind('.');
+ return { s, pos ? pos : string_type::npos };
+ }
+ }
+ return {};
+}
+
+void
+path::_M_split_cmpts()
+{
+ _M_type = _Type::_Multi;
+ _M_cmpts.clear();
+
+ if (_M_pathname.empty())
+ return;
+
+ size_t pos = 0;
+ const size_t len = _M_pathname.size();
+
+ // look for root name or root directory
+ if (_S_is_dir_sep(_M_pathname[0]))
+ {
+#ifdef __CYGWIN__
+ // look for root name, such as "//foo"
+ if (len > 2 && _M_pathname[1] == _M_pathname[0])
+ {
+ if (!_S_is_dir_sep(_M_pathname[2]))
+ {
+ // got root name, find its end
+ pos = 3;
+ while (pos < len && !_S_is_dir_sep(_M_pathname[pos]))
+ ++pos;
+ _M_add_root_name(pos);
+ if (pos < len) // also got root directory
+ _M_add_root_dir(pos);
+ }
+ else
+ {
+ // got something like "///foo" which is just a root directory
+ // composed of multiple redundant directory separators
+ _M_add_root_dir(0);
+ }
+ }
+ else
+#endif
+ {
+ // got root directory
+ if (_M_pathname.find_first_not_of('/') == string_type::npos)
+ {
+ // entire path is just slashes
+ _M_type = _Type::_Root_dir;
+ return;
+ }
+ _M_add_root_dir(0);
+ ++pos;
+ }
+ }
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ else if (len > 1 && _M_pathname[1] == L':')
+ {
+ // got disk designator
+ _M_add_root_name(2);
+ if (len > 2 && _S_is_dir_sep(_M_pathname[2]))
+ _M_add_root_dir(2);
+ pos = 2;
+ }
+#endif
+
+ size_t back = pos;
+ while (pos < len)
+ {
+ if (_S_is_dir_sep(_M_pathname[pos]))
+ {
+ if (back != pos)
+ _M_add_filename(back, pos - back);
+ back = ++pos;
+ }
+ else
+ ++pos;
+ }
+
+ if (back != pos)
+ _M_add_filename(back, pos - back);
+ else if (_S_is_dir_sep(_M_pathname.back()))
+ {
+ // [fs.path.itr]/4
+ // An empty element, if trailing non-root directory-separator present.
+ if (_M_cmpts.back()._M_type == _Type::_Filename)
+ {
+ const auto& last = _M_cmpts.back();
+ pos = last._M_pos + last._M_pathname.size();
+ _M_cmpts.emplace_back(string_type(), _Type::_Filename, pos);
+ }
+ }
+
+ _M_trim();
+}
+
+void
+path::_M_add_root_name(size_t n)
+{
+ _M_cmpts.emplace_back(_M_pathname.substr(0, n), _Type::_Root_name, 0);
+}
+
+void
+path::_M_add_root_dir(size_t pos)
+{
+ _M_cmpts.emplace_back(_M_pathname.substr(pos, 1), _Type::_Root_dir, pos);
+}
+
+void
+path::_M_add_filename(size_t pos, size_t n)
+{
+ _M_cmpts.emplace_back(_M_pathname.substr(pos, n), _Type::_Filename, pos);
+}
+
+void
+path::_M_trim()
+{
+ if (_M_cmpts.size() == 1)
+ {
+ _M_type = _M_cmpts.front()._M_type;
+ _M_cmpts.clear();
+ }
+}
+
+path::string_type
+path::_S_convert_loc(const char* __first, const char* __last,
+ const std::locale& __loc)
+{
+#if _GLIBCXX_USE_WCHAR_T
+ auto& __cvt = std::use_facet<codecvt<wchar_t, char, mbstate_t>>(__loc);
+ basic_string<wchar_t> __ws;
+ if (!__str_codecvt_in(__first, __last, __ws, __cvt))
+ _GLIBCXX_THROW_OR_ABORT(filesystem_error(
+ "Cannot convert character sequence",
+ std::make_error_code(errc::illegal_byte_sequence)));
+#ifdef _GLIBCXX_FILESYSTEM_IS_WINDOWS
+ return __ws;
+#else
+ return _Cvt<wchar_t>::_S_convert(__ws.data(), __ws.data() + __ws.size());
+#endif
+#else
+ return {__first, __last};
+#endif
+}
+
+std::size_t
+fs::hash_value(const path& p) noexcept
+{
+ // [path.non-member]
+ // "If for two paths, p1 == p2 then hash_value(p1) == hash_value(p2)."
+ // Equality works as if by traversing the range [begin(), end()), meaning
+ // e.g. path("a//b") == path("a/b"), so we cannot simply hash _M_pathname
+ // but need to iterate over individual elements. Use the hash_combine from
+ // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3876.pdf
+ size_t seed = 0;
+ for (const auto& x : p)
+ {
+ seed ^= std::hash<path::string_type>()(x.native()) + 0x9e3779b9
+ + (seed<<6) + (seed>>2);
+ }
+ return seed;
+}
+
+namespace std
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+namespace filesystem
+{
+ string
+ fs_err_concat(const string& __what, const string& __path1,
+ const string& __path2)
+ {
+ const size_t __len = 18 + __what.length()
+ + (__path1.length() ? __path1.length() + 3 : 0)
+ + (__path2.length() ? __path2.length() + 3 : 0);
+ string __ret;
+ __ret.reserve(__len);
+ __ret = "filesystem error: ";
+ __ret += __what;
+ if (!__path1.empty())
+ {
+ __ret += " [";
+ __ret += __path1;
+ __ret += ']';
+ }
+ if (!__path2.empty())
+ {
+ __ret += " [";
+ __ret += __path2;
+ __ret += ']';
+ }
+ return __ret;
+ }
+
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ std::string filesystem_error::_M_gen_what()
+ {
+ return fs_err_concat(system_error::what(), _M_path1.native(),
+ _M_path2.native());
+ }
+
+_GLIBCXX_END_NAMESPACE_CXX11
+
+} // filesystem
+_GLIBCXX_END_NAMESPACE_VERSION
+} // std
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ // Test non-existent path.
+ const auto p = __gnu_test::nonexistent_path();
+ fs::directory_iterator iter(p, ec);
+ VERIFY( ec );
+ VERIFY( iter == end(iter) );
+
+ // Test empty directory.
+ create_directory(p, fs::current_path(), ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter == end(iter) );
+
+ // Test non-empty directory.
+ ec = bad_ec;
+ create_directory_symlink(p, p / "l", ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter != fs::directory_iterator() );
+ VERIFY( iter->path() == p/"l" );
+ ++iter;
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible directory.
+ ec = bad_ec;
+ permissions(p, fs::perms::none, ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::directory_iterator(p, ec);
+ VERIFY( ec );
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible directory, skipping permission denied.
+ const auto opts = fs::directory_options::skip_permission_denied;
+ ec = bad_ec;
+ iter = fs::directory_iterator(p, opts, ec);
+ VERIFY( !ec );
+ VERIFY( iter == end(iter) );
+
+ permissions(p, fs::perms::owner_all, ec);
+ remove_all(p, ec);
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ const auto p = __gnu_test::nonexistent_path();
+ ec = bad_ec;
+ create_directory(p, fs::current_path(), ec);
+ create_directory_symlink(p, p / "l", ec);
+ VERIFY( !ec );
+
+ // Test post-increment (libstdc++/71005)
+ ec = bad_ec;
+ auto iter = fs::directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter != end(iter) );
+ const auto entry1 = *iter;
+ const auto entry2 = *iter++;
+ VERIFY( entry1 == entry2 );
+ VERIFY( entry1.path() == p/"l" );
+ VERIFY( iter == end(iter) );
+
+ remove_all(p, ec);
+}
+
+void
+test03()
+{
+ std::error_code ec = make_error_code(std::errc::invalid_argument);
+ const auto p = __gnu_test::nonexistent_path();
+ create_directories(p / "longer_than_small_string_buffer", ec);
+ VERIFY( !ec );
+
+ // Test for no reallocation on each dereference (this is a GNU extension)
+ auto iter = fs::directory_iterator(p, ec);
+ const auto* s1 = iter->path().c_str();
+ const auto* s2 = iter->path().c_str();
+ VERIFY( s1 == s2 );
+
+ remove_all(p, ec);
+}
+
+void
+test04()
+{
+ const fs::directory_iterator it;
+ VERIFY( it == fs::directory_iterator() );
+}
+
+void
+test05()
+{
+ auto p = __gnu_test::nonexistent_path();
+ create_directory(p);
+ create_directory_symlink(p, p / "l");
+ fs::directory_iterator it(p), endit;
+ VERIFY( begin(it) == it );
+ static_assert( noexcept(begin(it)), "begin is noexcept" );
+ VERIFY( end(it) == endit );
+ static_assert( noexcept(end(it)), "end is noexcept" );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+ test05();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec;
+ fs::recursive_directory_iterator dir;
+ dir.pop(ec); // This is undefined, but our implementation
+ VERIFY( ec ); // checks and returns an error.
+ VERIFY( dir == end(dir) );
+
+ std::error_code ec2;
+ try
+ {
+ dir.pop();
+ }
+ catch (const fs::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ }
+ VERIFY( ec2 == ec );
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ const auto p = __gnu_test::nonexistent_path();
+ create_directories(p / "d1/d2/d3");
+ for (int i = 0; i < 3; ++i)
+ {
+ fs::recursive_directory_iterator dir(p);
+ VERIFY( dir != end(dir) );
+ std::advance(dir, i);
+ VERIFY( dir != end(dir) );
+ VERIFY( dir.depth() == i );
+ ec = bad_ec;
+ dir.pop(ec);
+ VERIFY( !ec );
+ VERIFY( dir == end(dir) );
+
+ dir = fs::recursive_directory_iterator(p);
+ std::advance(dir, i);
+ VERIFY( dir != end(dir) );
+ VERIFY( dir.depth() == i );
+ dir.pop();
+ VERIFY( dir == end(dir) );
+ }
+ remove_all(p, ec);
+}
+
+void
+test03()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ const auto p = __gnu_test::nonexistent_path();
+ create_directories(p / "d1/d2/d3");
+ create_directories(p / "d1/d2/e3");
+ create_directories(p / "d1/e2/d3");
+ for (int i = 0; i < 3; ++i)
+ {
+ fs::recursive_directory_iterator dir(p);
+ std::advance(dir, i);
+ VERIFY( dir != end(dir) );
+ int expected_depth = i;
+ VERIFY( dir.depth() == expected_depth );
+ ec = bad_ec;
+ dir.pop(ec);
+ VERIFY( !ec );
+ if (dir != end(dir))
+ VERIFY( dir.depth() == (expected_depth - 1) );
+
+ dir = fs::recursive_directory_iterator(p);
+ std::advance(dir, i);
+ VERIFY( dir != end(dir) );
+ VERIFY( dir.depth() == i );
+ dir.pop();
+ if (dir != end(dir))
+ VERIFY( dir.depth() == (i -1) );
+ }
+ remove_all(p, ec);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ // Test non-existent path.
+ const auto p = __gnu_test::nonexistent_path();
+ fs::recursive_directory_iterator iter(p, ec);
+ VERIFY( ec );
+ VERIFY( iter == end(iter) );
+
+ // Test empty directory.
+ ec = bad_ec;
+ create_directory(p, fs::current_path(), ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::recursive_directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter == end(iter) );
+
+ // Test non-empty directory.
+ ec = bad_ec;
+ create_directories(p / "d1/d2", ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::recursive_directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter != end(iter) );
+ VERIFY( iter->path() == p/"d1" );
+ ++iter;
+ VERIFY( iter->path() == p/"d1/d2" );
+ ++iter;
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible directory.
+ ec = bad_ec;
+ permissions(p, fs::perms::none, ec);
+ VERIFY( !ec );
+ iter = fs::recursive_directory_iterator(p, ec);
+ VERIFY( ec );
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible directory, skipping permission denied.
+ const auto opts = fs::directory_options::skip_permission_denied;
+ iter = fs::recursive_directory_iterator(p, opts, ec);
+ VERIFY( !ec );
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible sub-directory.
+ ec = bad_ec;
+ permissions(p, fs::perms::owner_all, ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ permissions(p/"d1/d2", fs::perms::none, ec);
+ VERIFY( !ec );
+ ec = bad_ec;
+ iter = fs::recursive_directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter != end(iter) );
+ VERIFY( iter->path() == p/"d1" );
+ ++iter; // should recurse into d1
+ VERIFY( iter->path() == p/"d1/d2" );
+ iter.increment(ec); // should fail to recurse into p/d1/d2
+ VERIFY( ec );
+ VERIFY( iter == end(iter) );
+
+ // Test inaccessible sub-directory, skipping permission denied.
+ ec = bad_ec;
+ iter = fs::recursive_directory_iterator(p, opts, ec);
+ VERIFY( !ec );
+ VERIFY( iter != end(iter) );
+ VERIFY( iter->path() == p/"d1" );
+ ++iter; // should recurse into d1
+ VERIFY( iter->path() == p/"d1/d2" );
+ ec = bad_ec;
+ iter.increment(ec); // should fail to recurse into p/d1/d2, so skip it
+ VERIFY( !ec );
+ VERIFY( iter == end(iter) );
+
+ permissions(p/"d1/d2", fs::perms::owner_all, ec);
+ remove_all(p, ec);
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ const auto p = __gnu_test::nonexistent_path();
+ ec = bad_ec;
+ create_directories(p / "d1/d2", ec);
+ VERIFY( !ec );
+
+ // Test post-increment (libstdc++/71005)
+ ec = bad_ec;
+ auto iter = fs::recursive_directory_iterator(p, ec);
+ VERIFY( !ec );
+ VERIFY( iter != end(iter) );
+ const auto entry1 = *iter;
+ const auto entry2 = *iter++;
+ VERIFY( entry1 == entry2 );
+ VERIFY( entry1.path() == p/"d1" );
+ const auto entry3 = *iter;
+ const auto entry4 = *iter++;
+ VERIFY( entry3 == entry4 );
+ VERIFY( entry3.path() == p/"d1/d2" );
+ VERIFY( iter == end(iter) );
+
+ remove_all(p, ec);
+}
+
+void
+test03()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ const auto p = __gnu_test::nonexistent_path();
+ ec = bad_ec;
+ create_directories(p / "longer_than_small_string_buffer", ec);
+ VERIFY( !ec );
+
+ // Test for no reallocation on each dereference (this is a GNU extension)
+ auto iter = fs::recursive_directory_iterator(p, ec);
+ const auto* s1 = iter->path().c_str();
+ const auto* s2 = iter->path().c_str();
+ VERIFY( s1 == s2 );
+
+ remove_all(p, ec);
+}
+
+void
+test04()
+{
+ // libstdc++/71004
+ const fs::recursive_directory_iterator it;
+ VERIFY( it == end(it) );
+}
+
+void
+test05()
+{
+ auto p = __gnu_test::nonexistent_path();
+ create_directory(p);
+ create_directory_symlink(p, p / "l");
+ fs::recursive_directory_iterator it(p), endit;
+ VERIFY( begin(it) == it );
+ static_assert( noexcept(begin(it)), "begin is noexcept" );
+ VERIFY( end(it) == endit );
+ static_assert( noexcept(end(it)), "end is noexcept" );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+ test05();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.14.1 Absolute [fs.op.absolute]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ VERIFY( absolute(p).is_absolute() );
+}
+
+void
+test02()
+{
+ path p1("/");
+ VERIFY( absolute(p1) == p1 );
+ path p2("/foo");
+ VERIFY( absolute(p2) == p2 );
+ path p3("foo");
+ VERIFY( absolute(p3) != p3 );
+ VERIFY( absolute(p3) == (std::filesystem::current_path()/p3) );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ auto p = __gnu_test::nonexistent_path();
+ canonical( p, ec );
+ VERIFY( ec );
+
+ create_directory(p);
+ auto p2 = canonical( p, ec );
+ VERIFY( p2 == fs::current_path()/p );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p2 = canonical( fs::current_path() / "." / (p.native() + "////././."), ec );
+ VERIFY( p2 == fs::current_path()/p );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p = fs::current_path();
+ p2 = canonical( p, ec );
+ VERIFY( p2 == p );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p = "/";
+ p = canonical( p, ec );
+ VERIFY( p == "/" );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p = "/.";
+ p = canonical( p, ec );
+ VERIFY( p == "/" );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p = "/..";
+ p = canonical( p, ec );
+ VERIFY( p == "/" );
+ VERIFY( !ec );
+
+ ec = bad_ec;
+ p = "/../.././.";
+ p = canonical( p, ec );
+ VERIFY( p == "/" );
+ VERIFY( !ec );
+}
+
+void
+test02()
+{
+ const fs::path p = __gnu_test::nonexistent_path();
+ std::error_code ec, ec2;
+ const fs::path res = canonical(p, ec);
+ VERIFY( ec );
+ VERIFY( res.empty() );
+
+#if __cpp_exceptions
+ fs::path e1, e2;
+ try {
+ canonical(p);
+ } catch (const fs::filesystem_error& e) {
+ e1 = e.path1();
+ e2 = e.path2();
+ ec2 = e.code();
+ }
+ VERIFY( e1 == p );
+ VERIFY( e2.empty() );
+ VERIFY( ec == ec2 );
+#endif
+}
+
+
+void
+test03()
+{
+ std::error_code ec;
+ auto dir = __gnu_test::nonexistent_path();
+ fs::create_directory(dir);
+ fs::path foo = dir/"foo", bar = dir/"bar";
+ fs::create_directory(foo);
+ fs::create_directory(bar);
+ fs::create_symlink("../bar", foo/"baz");
+
+ auto dirc = canonical(dir);
+ auto barc = canonical(bar);
+
+ auto p1 = fs::canonical(dir/"foo//.///..//./");
+ VERIFY( p1 == dirc );
+ auto p2 = fs::canonical(dir/"foo//./baz///..//./");
+ VERIFY( p2 == dirc );
+ auto p3 = fs::canonical(dir/"foo//./baz////./");
+ VERIFY( p3 == barc );
+ auto p4 = fs::canonical(dir/"foo//./baz///..//./bar");
+ VERIFY( p4 == barc );
+ auto p5 = fs::canonical(dir/"foo//./baz///..//./bar/");
+ VERIFY( p5 == p4 );
+ auto p6 = fs::canonical(dir/"foo//./baz///..//./bar/.");
+ VERIFY( p6 == p4 );
+
+ remove_all(dir);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 15.3 Copy [fs.op.copy]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+namespace fs = std::filesystem;
+
+// Test error conditions.
+void
+test01()
+{
+ auto p = __gnu_test::nonexistent_path();
+ std::error_code ec;
+
+ VERIFY( !fs::exists(p) );
+ fs::copy(p, ".", fs::copy_options::none, ec);
+ VERIFY( ec );
+
+ ec.clear();
+ fs::copy(".", ".", fs::copy_options::none, ec);
+ VERIFY( ec );
+
+ __gnu_test::scoped_file f(p);
+ VERIFY( fs::is_directory(".") );
+ VERIFY( fs::is_regular_file(p) );
+ ec.clear();
+ fs::copy(".", p, fs::copy_options::none, ec);
+ VERIFY( ec );
+
+ auto to = __gnu_test::nonexistent_path();
+ ec.clear();
+ auto opts = fs::copy_options::create_symlinks;
+ fs::copy("/", to, opts, ec);
+ VERIFY( ec == std::make_error_code(std::errc::is_a_directory) );
+ VERIFY( !exists(to) );
+
+ ec.clear();
+ opts != fs::copy_options::recursive;
+ fs::copy("/", to, opts, ec);
+ VERIFY( ec == std::make_error_code(std::errc::is_a_directory) );
+ VERIFY( !exists(to) );
+}
+
+// Test is_symlink(f) case.
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ auto from = __gnu_test::nonexistent_path();
+ auto to = __gnu_test::nonexistent_path();
+ std::error_code ec;
+
+ ec = bad_ec;
+ fs::create_symlink(".", from, ec);
+ VERIFY( !ec );
+ VERIFY( fs::exists(from) );
+
+ ec = bad_ec;
+ fs::copy(from, to, fs::copy_options::skip_symlinks, ec);
+ VERIFY( !ec );
+ VERIFY( !fs::exists(to) );
+
+ ec = bad_ec;
+ fs::copy(from, to, fs::copy_options::skip_symlinks, ec);
+ VERIFY( !ec );
+ VERIFY( !fs::exists(to) );
+
+ ec = bad_ec;
+ fs::copy(from, to,
+ fs::copy_options::skip_symlinks|fs::copy_options::copy_symlinks,
+ ec);
+ VERIFY( !ec );
+ VERIFY( !fs::exists(to) );
+
+ ec = bad_ec;
+ fs::copy(from, to, fs::copy_options::copy_symlinks, ec);
+ VERIFY( !ec );
+ VERIFY( fs::exists(to) );
+ VERIFY( is_symlink(to) );
+
+ ec.clear();
+ fs::copy(from, to, fs::copy_options::copy_symlinks, ec);
+ VERIFY( ec );
+
+ remove(from, ec);
+ remove(to, ec);
+}
+
+// Test is_regular_file(f) case.
+void
+test03()
+{
+ auto from = __gnu_test::nonexistent_path();
+ auto to = __gnu_test::nonexistent_path();
+
+ // test empty file
+ std::ofstream{from.native()};
+ VERIFY( fs::exists(from) );
+ VERIFY( fs::file_size(from) == 0 );
+ fs::copy(from, to);
+ VERIFY( fs::exists(to) );
+ VERIFY( fs::file_size(to) == 0 );
+
+ remove(to);
+ VERIFY( !fs::exists(to) );
+ std::ofstream{from.native()} << "Hello, filesystem!";
+ VERIFY( fs::file_size(from) != 0 );
+ fs::copy(from, to);
+ VERIFY( fs::exists(to) );
+ VERIFY( fs::file_size(to) == fs::file_size(from) );
+
+ remove(from);
+ remove(to);
+}
+
+// Test is_directory(f) case.
+void
+test04()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ auto from = __gnu_test::nonexistent_path();
+ auto to = __gnu_test::nonexistent_path();
+ std::error_code ec;
+
+ create_directories(from/"a/b/c");
+
+ {
+ __gnu_test::scoped_file f(to);
+ copy(from, to, ec);
+ VERIFY( ec );
+ }
+
+ __gnu_test::scoped_file f1(from/"a/f1");
+ std::ofstream{f1.path} << "file one";
+ __gnu_test::scoped_file f2(from/"a/b/f2");
+ std::ofstream{f2.path} << "file two";
+
+ copy(from, to, ec);
+ VERIFY( !ec );
+ VERIFY( exists(to) && is_empty(to) );
+ remove(to);
+
+ ec = bad_ec;
+ copy(from, to, fs::copy_options::recursive, ec);
+ VERIFY( !ec );
+ VERIFY( exists(to) && !is_empty(to) );
+ VERIFY( is_regular_file(to/"a/f1") && !is_empty(to/"a/f1") );
+ VERIFY( file_size(from/"a/f1") == file_size(to/"a/f1") );
+ VERIFY( is_regular_file(to/"a/b/f2") && !is_empty(to/"a/b/f2") );
+ VERIFY( file_size(from/"a/b/f2") == file_size(to/"a/b/f2") );
+ VERIFY( is_directory(to/"a/b/c") && is_empty(to/"a/b/c") );
+
+ f1.path.clear();
+ f2.path.clear();
+ remove_all(from, ec);
+ remove_all(to, ec);
+}
+
+// Test no-op cases.
+void
+test05()
+{
+ auto to = __gnu_test::nonexistent_path();
+ std::error_code ec = std::make_error_code(std::errc::invalid_argument);
+
+ fs::copy("/", to, fs::copy_options::copy_symlinks, ec);
+ VERIFY( !ec ); // Previous value should be cleared (LWG 2683)
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+ test05();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// 15.4 Copy [fs.op.copy_file]
+
+#include <filesystem>
+#include <fstream>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ using std::filesystem::copy_options;
+ std::error_code ec;
+
+ auto from = __gnu_test::nonexistent_path();
+ auto to = __gnu_test::nonexistent_path();
+
+ // test non-existent file
+ bool b = copy_file(from, to, ec);
+ VERIFY( !b );
+ VERIFY( ec );
+ VERIFY( !exists(to) );
+
+ // test empty file
+ std::ofstream{from.native()};
+ VERIFY( exists(from) );
+ VERIFY( file_size(from) == 0 );
+
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == 0 );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to, copy_options::none, ec);
+ VERIFY( b );
+ VERIFY( !ec );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == 0 );
+
+ std::ofstream{from.native()} << "Hello, filesystem!";
+ VERIFY( file_size(from) != 0 );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == file_size(from) );
+ remove(to);
+ VERIFY( !exists(to) );
+ b = copy_file(from, to);
+ VERIFY( b );
+ VERIFY( exists(to) );
+ VERIFY( file_size(to) == file_size(from) );
+
+ remove(from);
+ remove(to);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ // Test empty path.
+ bool b = fs::create_directories( "", ec );
+ VERIFY( ec );
+ VERIFY( !b );
+
+ // Test existing path.
+ ec = bad_ec;
+ b = fs::create_directories( fs::current_path(), ec );
+ VERIFY( !ec );
+ VERIFY( !b );
+
+ // Test non-existent path.
+ const auto p = __gnu_test::nonexistent_path();
+ ec = bad_ec;
+ b = fs::create_directories( p, ec );
+ VERIFY( !ec );
+ VERIFY( b );
+ VERIFY( is_directory(p) );
+
+ ec = bad_ec;
+ b = fs::create_directories( p/".", ec );
+ VERIFY( !ec );
+ VERIFY( !b );
+
+ ec = bad_ec;
+ b = fs::create_directories( p/"..", ec );
+ VERIFY( !ec );
+ VERIFY( !b );
+
+ ec = bad_ec;
+ b = fs::create_directories( p/"d1/d2/d3", ec );
+ VERIFY( !ec );
+ VERIFY( b );
+ VERIFY( is_directory(p/"d1/d2/d3") );
+
+ ec = bad_ec;
+ b = fs::create_directories( p/"./d4/../d5", ec );
+ VERIFY( !ec );
+ VERIFY( b );
+ VERIFY( is_directory(p/"./d4/../d5") );
+
+ std::uintmax_t count = remove_all(p, ec);
+ VERIFY( count == 6 );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ // Test empty path.
+ fs::path p;
+ bool b = create_directory( p, ec );
+ VERIFY( ec );
+ VERIFY( !b );
+
+ // Test non-existent path
+ p = __gnu_test::nonexistent_path();
+ VERIFY( !exists(p) );
+
+ ec = bad_ec;
+ b = create_directory(p, ec); // create the directory once
+ VERIFY( !ec );
+ VERIFY( b );
+ VERIFY( exists(p) );
+
+ // Test existing path (libstdc++/71036).
+ ec = bad_ec;
+ b = create_directory(p, ec);
+ VERIFY( !ec );
+ VERIFY( !b );
+ b = create_directory(p);
+ VERIFY( !b );
+
+ remove_all(p, ec);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec, ec2;
+ __gnu_test::scoped_file f;
+ auto tgt = f.path;
+
+ // Test empty path.
+ fs::path p;
+ create_symlink(tgt, p, ec );
+ VERIFY( ec );
+ try
+ {
+ create_symlink(tgt, p);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == tgt );
+ VERIFY( ex.path2() == p );
+ }
+ VERIFY( ec2 == ec );
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec, ec2;
+ __gnu_test::scoped_file f;
+ auto tgt = f.path;
+
+ // Test non-existent path
+ auto p = __gnu_test::nonexistent_path();
+ VERIFY( !exists(p) );
+
+ ec = bad_ec;
+ create_symlink(tgt, p, ec); // create the symlink once
+ VERIFY( !ec );
+ VERIFY( exists(p) );
+ VERIFY( is_symlink(p) );
+ remove(p);
+ create_symlink(tgt, p); // create the symlink again
+ VERIFY( exists(p) );
+ VERIFY( is_symlink(p) );
+
+ ec.clear();
+ create_symlink(tgt, p, ec); // Try to create existing symlink
+ VERIFY( ec );
+ try
+ {
+ create_symlink(tgt, p);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == tgt );
+ VERIFY( ex.path2() == p );
+ }
+ VERIFY( ec2 == ec );
+
+ remove(p);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 15.11 Current path [fs.op.current_path]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ fs::path dot(".");
+ fs::path cwd = fs::current_path();
+ std::error_code ec;
+ fs::path cwd2 = fs::current_path(ec);
+ VERIFY( cwd == cwd2 );
+}
+
+void
+test02()
+{
+ auto oldwd = fs::current_path();
+ auto tmpdir = fs::temp_directory_path();
+ current_path(tmpdir);
+ VERIFY( canonical(fs::current_path()) == canonical(tmpdir) );
+ std::error_code ec;
+ current_path(oldwd, ec);
+ VERIFY( canonical(fs::current_path()) == canonical(oldwd) );
+ VERIFY( canonical(fs::current_path(ec)) == canonical(oldwd) );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ auto p1 = __gnu_test::nonexistent_path();
+ auto p2 = __gnu_test::nonexistent_path();
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+ bool result;
+
+ result = equivalent(p1, p2, ec);
+ VERIFY( ec );
+ VERIFY( !result );
+
+ __gnu_test::scoped_file f1(p1);
+ ec = bad_ec;
+ result = equivalent(p1, p2, ec);
+ VERIFY( !ec );
+ VERIFY( !result );
+
+ __gnu_test::scoped_file f2(p2);
+ ec = bad_ec;
+ result = equivalent(p1, p2, ec);
+ VERIFY( !ec );
+ VERIFY( !result );
+
+ auto p3 = __gnu_test::nonexistent_path();
+ create_hard_link(p1, p3, ec);
+ if (ec)
+ return; // hard links not supported
+ __gnu_test::scoped_file f3(p3, __gnu_test::scoped_file::adopt_file);
+
+ ec = bad_ec;
+ result = equivalent(p1, p3, ec);
+ VERIFY( !ec );
+ VERIFY( result );
+
+ ec = bad_ec;
+ result = equivalent(p2, p3, ec);
+ VERIFY( !ec );
+ VERIFY( !result );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+
+ VERIFY( exists(path{"/"}) );
+ VERIFY( exists(path{"/."}) );
+ VERIFY( exists(path{"."}) );
+ VERIFY( exists(path{".."}) );
+ VERIFY( exists(std::filesystem::current_path()) );
+
+ std::error_code ec;
+ ec = bad_ec;
+ VERIFY( exists(path{"/"}, ec) );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( exists(path{"/."}, ec) );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( exists(path{"."}, ec) );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( exists(path{".."}, ec) );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( exists(std::filesystem::current_path(), ec) );
+ VERIFY( !ec );
+}
+
+void
+test02()
+{
+ path rel = __gnu_test::nonexistent_path();
+ VERIFY( !exists(rel) );
+
+ std::error_code ec = std::make_error_code(std::errc::invalid_argument);
+ VERIFY( !exists(rel, ec) );
+ VERIFY( !ec ); // DR 2725
+}
+
+void
+test03()
+{
+ path abs = absolute(__gnu_test::nonexistent_path());
+ VERIFY( !exists(abs) );
+
+ std::error_code ec = std::make_error_code(std::errc::invalid_argument);
+ VERIFY( !exists(abs, ec) );
+ VERIFY( !ec ); // DR 2725
+}
+
+void
+test04()
+{
+ using std::filesystem::perms;
+ using std::filesystem::perm_options;
+ path p = __gnu_test::nonexistent_path();
+ create_directory(p);
+ permissions(p, perms::all, perm_options::remove);
+
+ auto unr = p / "unreachable";
+ std::error_code ec;
+ VERIFY( !exists(unr, ec) );
+ VERIFY( ec == std::errc::permission_denied );
+ ec.clear();
+ try
+ {
+ exists(unr);
+ }
+ catch(const std::filesystem::filesystem_error& ex)
+ {
+ ec = ex.code();
+ VERIFY( ex.path1() == unr );
+ }
+ VERIFY( ec == std::errc::permission_denied );
+
+ permissions(p, perms::owner_all);
+ remove(p);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec;
+ size_t size = fs::file_size(".", ec);
+ VERIFY( ec == std::errc::is_a_directory );
+ VERIFY( size == -1 );
+
+ try {
+ size = fs::file_size(".");
+ ec.clear();
+ } catch (const fs::filesystem_error& e) {
+ ec = e.code();
+ }
+ VERIFY( ec == std::errc::is_a_directory );
+ VERIFY( size == -1 );
+}
+
+void
+test02()
+{
+ fs::path p = __gnu_test::nonexistent_path();
+
+ std::error_code ec;
+ size_t size = fs::file_size(p, ec);
+ VERIFY( ec );
+ VERIFY( size == -1 );
+
+ try {
+ size = fs::file_size(p);
+ ec.clear();
+ } catch (const fs::filesystem_error& e) {
+ ec = e.code();
+ }
+ VERIFY( ec );
+ VERIFY( size == -1 );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ auto p = __gnu_test::nonexistent_path();
+ create_directory(p);
+ permissions(p, fs::perms::none);
+ std::error_code ec, ec2;
+
+ bool result = fs::is_empty(p, ec);
+ VERIFY( ec == std::make_error_code(std::errc::permission_denied) );
+ VERIFY( !result );
+
+ try {
+ fs::is_empty(p);
+ } catch (const fs::filesystem_error& e) {
+ ec2 = e.code();
+ }
+ VERIFY( ec2 == ec );
+
+ result = fs::is_empty(p/"f", ec);
+ VERIFY( ec == std::make_error_code(std::errc::permission_denied) );
+ VERIFY( !result );
+
+ try {
+ fs::is_empty(p/"f");
+ } catch (const fs::filesystem_error& e) {
+ ec2 = e.code();
+ }
+ VERIFY( ec2 == ec );
+
+ permissions(p, fs::perms::owner_all, ec);
+ remove_all(p, ec);
+}
+
+void
+test02()
+{
+ auto p = __gnu_test::nonexistent_path();
+ create_directory(p);
+ std::error_code ec, bad_ec = make_error_code(std::errc::invalid_argument);
+ bool empty;
+
+ ec = bad_ec;
+ empty = is_empty(p, ec);
+ VERIFY( !ec );
+ VERIFY( empty );
+ empty = is_empty(p);
+ VERIFY( empty );
+
+ __gnu_test::scoped_file f(p/"f");
+ ec = bad_ec;
+ empty = is_empty(f.path, ec);
+ VERIFY( !ec );
+ VERIFY( empty );
+ empty = is_empty(f.path);
+ VERIFY( empty );
+
+ std::ofstream{f.path.native()} << "data";
+ ec = bad_ec;
+ empty = is_empty(p, ec);
+ VERIFY( !ec );
+ VERIFY( !empty );
+ empty = is_empty(p);
+ VERIFY( !empty );
+
+ ec = bad_ec;
+ empty = is_empty(p, ec);
+ VERIFY( !ec );
+ VERIFY( !empty );
+ empty = is_empty(p);
+ VERIFY( !empty );
+
+ f.path.clear();
+ remove_all(p, ec);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// 15.25 Permissions [fs.op.last_write_time]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+#ifdef _GLIBCXX_HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+#if _GLIBCXX_HAVE_UTIME_H
+# include <utime.h>
+#endif
+
+using time_type = std::filesystem::file_time_type;
+
+void
+test01()
+{
+ // read times
+
+ auto p = __gnu_test::nonexistent_path();
+ std::error_code ec;
+ time_type mtime = last_write_time(p, ec);
+ VERIFY( ec );
+ VERIFY( ec == std::make_error_code(std::errc::no_such_file_or_directory) );
+#if __cpp_exceptions
+ bool caught = false;
+ try {
+ mtime = last_write_time(p);
+ } catch (std::system_error const& e) {
+ caught = true;
+ ec = e.code();
+ }
+ VERIFY( caught );
+ VERIFY( ec );
+ VERIFY( ec == std::make_error_code(std::errc::no_such_file_or_directory) );
+#endif
+
+ __gnu_test::scoped_file file(p);
+ VERIFY( exists(p) );
+ mtime = last_write_time(p, ec);
+ VERIFY( !ec );
+ VERIFY( mtime <= time_type::clock::now() );
+ VERIFY( mtime == last_write_time(p) );
+
+ auto end_of_time = time_type::duration::max();
+ auto last_second
+ = std::chrono::duration_cast<std::chrono::seconds>(end_of_time).count();
+ if (last_second > std::numeric_limits<std::time_t>::max())
+ return; // can't test overflow
+
+#if _GLIBCXX_USE_UTIMENSAT
+ struct ::timespec ts[2];
+ ts[0].tv_sec = 0;
+ ts[0].tv_nsec = UTIME_NOW;
+ ts[1].tv_sec = std::numeric_limits<std::time_t>::max() - 1;
+ ts[1].tv_nsec = 0;
+ VERIFY( !::utimensat(AT_FDCWD, p.c_str(), ts, 0) );
+#elif _GLIBCXX_HAVE_UTIME_H
+ ::utimbuf times;
+ times.modtime = std::numeric_limits<std::time_t>::max() - 1;
+ times.actime = std::numeric_limits<std::time_t>::max() - 1;
+ VERIFY( !::utime(p.c_str(), ×) );
+#else
+ return;
+#endif
+
+ mtime = last_write_time(p, ec);
+ VERIFY( ec );
+ VERIFY( ec == std::make_error_code(std::errc::value_too_large) );
+ VERIFY( mtime == time_type::min() );
+
+#if __cpp_exceptions
+ caught = false;
+ try {
+ mtime = last_write_time(p);
+ } catch (std::system_error const& e) {
+ caught = true;
+ ec = e.code();
+ }
+ VERIFY( caught );
+ VERIFY( ec );
+ VERIFY( ec == std::make_error_code(std::errc::value_too_large) );
+#endif
+}
+
+bool approx_equal(time_type file_time, time_type expected)
+{
+ auto delta = expected - file_time;
+ if (delta < delta.zero())
+ delta = -delta;
+ return delta < std::chrono::seconds(1);
+}
+
+void
+test02()
+{
+ // write times
+
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ __gnu_test::scoped_file f;
+ std::error_code ec;
+ time_type time;
+
+ time = last_write_time(f.path);
+ ec = bad_ec;
+ last_write_time(f.path, time, ec);
+ VERIFY( !ec );
+ VERIFY( approx_equal(last_write_time(f.path), time) );
+
+ ec = bad_ec;
+ time -= std::chrono::milliseconds(1000 * 60 * 10 + 15);
+ last_write_time(f.path, time, ec);
+ VERIFY( !ec );
+ VERIFY( approx_equal(last_write_time(f.path), time) );
+
+ ec = bad_ec;
+ time += std::chrono::milliseconds(1000 * 60 * 20 + 15);
+ last_write_time(f.path, time, ec);
+ VERIFY( !ec );
+ VERIFY( approx_equal(last_write_time(f.path), time) );
+
+ ec = bad_ec;
+ time = time_type();
+ last_write_time(f.path, time, ec);
+ VERIFY( !ec );
+ VERIFY( approx_equal(last_write_time(f.path), time) );
+
+ ec = bad_ec;
+ time -= std::chrono::milliseconds(1000 * 60 * 10 + 15);
+ last_write_time(f.path, time, ec);
+ VERIFY( !ec );
+ VERIFY( approx_equal(last_write_time(f.path), time) );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// C++17 30.10.14.26 Permissions [fs.op.permissions]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ using std::filesystem::perms;
+ using std::filesystem::perm_options;
+
+ auto p = __gnu_test::nonexistent_path();
+
+ __gnu_test::scoped_file f(p);
+ VERIFY( exists(p) );
+ permissions(p, perms::owner_all);
+ VERIFY( status(p).permissions() == perms::owner_all );
+ permissions(p, perms::group_read, perm_options::add);
+ VERIFY( status(p).permissions() == (perms::owner_all | perms::group_read) );
+ permissions(p, perms::group_read, perm_options::remove);
+ VERIFY( status(p).permissions() == perms::owner_all );
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ using std::filesystem::perms;
+ using std::filesystem::perm_options;
+
+ auto p = __gnu_test::nonexistent_path();
+
+ std::error_code ec;
+ permissions(p, perms::owner_all, ec);
+ VERIFY( ec );
+
+ __gnu_test::scoped_file f(p);
+ VERIFY( exists(p) );
+
+ ec = bad_ec;
+ permissions(p, perms::owner_all, ec);
+ VERIFY( !ec );
+ VERIFY( status(p).permissions() == perms::owner_all );
+ ec = bad_ec;
+ permissions(p, perms::group_read, perm_options::add, ec);
+ VERIFY( !ec );
+ VERIFY( status(p).permissions() == (perms::owner_all | perms::group_read) );
+ ec = bad_ec;
+ permissions(p, perms::group_read, perm_options::remove, ec);
+ VERIFY( !ec );
+ VERIFY( status(p).permissions() == perms::owner_all );
+}
+
+void
+test03()
+{
+ using std::filesystem::perms;
+ using std::filesystem::perm_options;
+
+ __gnu_test::scoped_file f;
+ VERIFY( exists(f.path) );
+
+ auto p = __gnu_test::nonexistent_path();
+ create_symlink(f.path, p);
+
+ std::error_code ec = make_error_code(std::errc::no_such_file_or_directory);
+ std::error_code ec2 = make_error_code(std::errc::invalid_argument);
+ permissions(p, perms::owner_all,
+ perm_options::replace|perm_options::nofollow, ec);
+ try
+ {
+ permissions(p, perms::owner_all,
+ perm_options::replace|perm_options::nofollow);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == p );
+ }
+ // Both calls should succeed, or both should fail with same error:
+ VERIFY( ec == ec2 );
+
+ remove(p);
+}
+
+void
+test04()
+{
+ using perms = std::filesystem::perms;
+
+ auto p = __gnu_test::nonexistent_path();
+ create_symlink(__gnu_test::nonexistent_path(), p);
+
+ std::error_code ec = make_error_code(std::errc::no_such_file_or_directory);
+ std::error_code ec2 = make_error_code(std::errc::invalid_argument);
+ permissions(p, perms::owner_all, ec);
+ VERIFY( ec );
+ try
+ {
+ permissions(p, perms::owner_all);
+ }
+ catch (const std::filesystem::filesystem_error& ex)
+ {
+ ec2 = ex.code();
+ VERIFY( ex.path1() == p );
+ }
+ VERIFY( ec == ec2 );
+
+ remove(p);
+}
+
+void
+test05()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ using std::filesystem::perms;
+ using std::filesystem::perm_options;
+ std::error_code ec;
+
+ __gnu_test::scoped_file f;
+ auto p = perms::owner_write;
+
+ // symlink_nofollow should not give an error for non-symlinks
+ ec = bad_ec;
+ permissions(f.path, p, perm_options::replace|perm_options::nofollow, ec);
+ VERIFY( !ec );
+ auto st = status(f.path);
+ VERIFY( st.permissions() == p );
+ p |= perms::owner_read;
+ ec = bad_ec;
+ permissions(f.path, p, perm_options::replace|perm_options::nofollow, ec);
+ VERIFY( !ec );
+ st = status(f.path);
+ VERIFY( st.permissions() == p );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+ test05();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::proximate;
+
+void
+test01()
+{
+ VERIFY( proximate("/a/d", "/a/b/c") == "../../d" );
+ VERIFY( proximate("/a/b/c", "/a/d") == "../b/c" );
+ VERIFY( proximate("a/b/c", "a") == "b/c" );
+ VERIFY( proximate("a/b/c", "a/b/c/x/y") == "../.." );
+ VERIFY( proximate("a/b/c", "a/b/c") == "." );
+ VERIFY( proximate("a/b", "c/d") == "../../a/b" );
+}
+
+void
+test02()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec = bad_ec;
+ VERIFY( proximate("/a/d", "/a/b/c", ec) == "../../d" );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( proximate("/a/b/c", "/a/d", ec) == "../b/c" );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( proximate("a/b/c", "a", ec) == "b/c" );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( proximate("a/b/c", "a/b/c/x/y", ec) == "../.." );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( proximate("a/b/c", "a/b/c", ec) == "." );
+ VERIFY( !ec );
+ ec = bad_ec;
+ VERIFY( proximate("a/b", "c/d", ec) == "../../a/b" );
+ VERIFY( !ec );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ auto p = __gnu_test::nonexistent_path();
+ std::error_code ec;
+
+ read_symlink(p, ec);
+ VERIFY( ec );
+
+ fs::path tgt = ".";
+ create_symlink(tgt, p);
+
+ auto result = read_symlink(p, ec);
+ VERIFY( !ec );
+ VERIFY( result == tgt );
+
+ remove(p);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ auto p = __gnu_test::nonexistent_path();
+ auto q = __gnu_test::nonexistent_path();
+
+ auto r = relative(p, q);
+ VERIFY( r == ".."/p );
+
+ r = relative(p, p/q);
+ VERIFY( r == ".." );
+
+ r = relative(p/q, p);
+ VERIFY( r == q );
+
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ ec = bad_ec;
+ r = relative(p, q, ec);
+ VERIFY( !ec );
+ VERIFY( r == ".."/p );
+
+ ec = bad_ec;
+ r = relative(p, p/q, ec);
+ VERIFY( !ec );
+ VERIFY( r == ".." );
+
+ ec = bad_ec;
+ r = relative(p/q, p, ec);
+ VERIFY( !ec );
+ VERIFY( r == q );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec;
+ std::uintmax_t n;
+
+ n = fs::remove_all("", ec);
+ VERIFY( ec );
+ VERIFY( n == std::uintmax_t(-1) );
+
+ auto p = __gnu_test::nonexistent_path();
+ ec.clear();
+ n = remove_all(p, ec);
+ VERIFY( ec );
+ VERIFY( n == std::uintmax_t(-1) );
+
+ const auto bad_ec = ec;
+ auto link = __gnu_test::nonexistent_path();
+ create_symlink(p, link); // dangling symlink
+ ec = bad_ec;
+ n = remove_all(link, ec);
+ VERIFY( !ec );
+ VERIFY( n == 1 );
+ VERIFY( !exists(symlink_status(link)) ); // DR 2721
+
+ __gnu_test::scoped_file f(p);
+ create_symlink(p, link);
+ ec = bad_ec;
+ n = remove_all(link, ec);
+ VERIFY( !ec );
+ VERIFY( n == 1 );
+ VERIFY( !exists(symlink_status(link)) ); // The symlink is removed, but
+ VERIFY( exists(p) ); // its target is not.
+
+ auto dir = __gnu_test::nonexistent_path();
+ create_directories(dir/"a/b/c");
+ ec = bad_ec;
+ n = remove_all(dir/"a", ec);
+ VERIFY( !ec );
+ VERIFY( n == 3 );
+ VERIFY( exists(dir) );
+ VERIFY( !exists(dir/"a") );
+
+ create_directories(dir/"a/b/c");
+ __gnu_test::scoped_file a1(dir/"a/1");
+ __gnu_test::scoped_file a2(dir/"a/2");
+ __gnu_test::scoped_file b1(dir/"a/b/1");
+ __gnu_test::scoped_file b2(dir/"a/b/2");
+ ec = bad_ec;
+ n = remove_all(dir, ec);
+ VERIFY( !ec );
+ VERIFY( n == 8 );
+ VERIFY( !exists(dir) );
+
+ a1.path.clear();
+ a2.path.clear();
+ b1.path.clear();
+ b2.path.clear();
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// 30.10.14.3 Permissions [fs.op.space]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ std::filesystem::space_info s = std::filesystem::space("/");
+ std::error_code ec = make_error_code(std::errc::invalid_argument);
+ s = std::filesystem::space("/", ec);
+ VERIFY( !ec );
+ s = std::filesystem::space(__gnu_test::nonexistent_path(), ec);
+ VERIFY( ec );
+ VERIFY( s.capacity == static_cast<uintmax_t>(-1) );
+ VERIFY( s.free == static_cast<uintmax_t>(-1) );
+ VERIFY( s.available == static_cast<uintmax_t>(-1) );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ std::error_code ec = make_error_code(std::errc::invalid_argument);
+ fs::path dot = ".";
+
+ fs::file_status st1 = fs::status(dot, ec);
+ VERIFY( !ec );
+ VERIFY( st1.type() == fs::file_type::directory );
+
+ fs::file_status st2 = fs::status(dot);
+ VERIFY( st2.type() == fs::file_type::directory );
+}
+
+void
+test02()
+{
+ fs::path p = __gnu_test::nonexistent_path();
+
+ std::error_code ec;
+ fs::file_status st1 = fs::status(p, ec);
+ VERIFY( ec );
+ VERIFY( st1.type() == fs::file_type::not_found );
+
+ fs::file_status st2 = fs::status(p);
+ VERIFY( st2.type() == fs::file_type::not_found );
+}
+
+void
+test03()
+{
+ fs::path dir = __gnu_test::nonexistent_path();
+ fs::create_directory(dir);
+ __gnu_test::scoped_file d(dir, __gnu_test::scoped_file::adopt_file);
+ __gnu_test::scoped_file f(dir / "file");
+ fs::permissions(dir, fs::perms::none);
+
+ std::error_code ec;
+ fs::file_status st = fs::status(f.path, ec);
+ VERIFY( ec.value() == (int)std::errc::permission_denied );
+ VERIFY( st.type() == fs::file_type::none );
+
+#if __cpp_exceptions
+ bool caught = false;
+ std::error_code ec2;
+ fs::path p, p2;
+ try {
+ fs::symlink_status(f.path);
+ } catch (const fs::filesystem_error& e) {
+ caught = true;
+ p = e.path1();
+ p2 = e.path2();
+ ec2 = e.code();
+ }
+ VERIFY( caught );
+ VERIFY( ec2 == ec );
+ VERIFY( p == f.path );
+ VERIFY( p2.empty() );
+#endif
+
+ fs::permissions(dir, fs::perms::owner_all, ec);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec = bad_ec;
+ fs::path dot = ".";
+
+ fs::file_status st1 = fs::symlink_status(dot, ec);
+ VERIFY( !ec );
+ VERIFY( st1.type() == fs::file_type::directory );
+
+ fs::file_status st2 = fs::symlink_status(dot);
+ VERIFY( st2.type() == fs::file_type::directory );
+
+ fs::path link = __gnu_test::nonexistent_path();
+ create_directory_symlink(dot, link);
+
+ st1 = fs::symlink_status(link);
+ VERIFY( st1.type() == fs::file_type::symlink );
+ ec = bad_ec;
+ st2 = fs::symlink_status(link, ec);
+ VERIFY( !ec );
+ VERIFY( st2.type() == fs::file_type::symlink );
+}
+
+void
+test02()
+{
+ fs::path p = __gnu_test::nonexistent_path();
+
+ std::error_code ec;
+ fs::file_status st1 = fs::symlink_status(p, ec);
+ VERIFY( ec );
+ VERIFY( st1.type() == fs::file_type::not_found );
+
+ fs::file_status st2 = fs::symlink_status(p);
+ VERIFY( st2.type() == fs::file_type::not_found );
+}
+
+void
+test03()
+{
+ fs::path dir = __gnu_test::nonexistent_path();
+ fs::create_directory(dir);
+ __gnu_test::scoped_file d(dir, __gnu_test::scoped_file::adopt_file);
+ __gnu_test::scoped_file f(dir / "file");
+ fs::permissions(dir, fs::perms::none);
+ auto link = __gnu_test::nonexistent_path();
+ fs::create_symlink(f.path, link);
+ __gnu_test::scoped_file l(link, __gnu_test::scoped_file::adopt_file);
+
+ std::error_code ec;
+ fs::file_status st = fs::symlink_status(f.path, ec);
+ VERIFY( ec.value() == (int)std::errc::permission_denied );
+ VERIFY( st.type() == fs::file_type::none );
+
+ st = fs::symlink_status(link, ec);
+ VERIFY( !ec );
+ VERIFY( st.type() == fs::file_type::symlink );
+
+#if __cpp_exceptions
+ bool caught = false;
+ std::error_code ec2;
+ fs::path p, p2;
+ try {
+ fs::symlink_status(f.path);
+ } catch (const fs::filesystem_error& e) {
+ caught = true;
+ p = e.path1();
+ p2 = e.path2();
+ ec2 = e.code();
+ }
+ VERIFY( caught );
+ VERIFY( ec2.value() == (int)std::errc::permission_denied );
+ VERIFY( p == f.path );
+ VERIFY( p2.empty() );
+#endif
+
+ fs::file_status st2 = symlink_status(link);
+ VERIFY( st2.type() == fs::file_type::symlink );
+
+ fs::permissions(dir, fs::perms::owner_all, ec);
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+}
--- /dev/null
+// Copyright (C) 2015-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <stdlib.h>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+void
+clean_env()
+{
+ ::unsetenv("TMPDIR");
+ ::unsetenv("TMP");
+ ::unsetenv("TEMPDIR");
+ ::unsetenv("TEMP");
+}
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ clean_env();
+
+ if (!fs::exists("/tmp"))
+ return; // just give up
+
+ std::error_code ec = make_error_code(std::errc::invalid_argument);
+ fs::path p1 = fs::temp_directory_path(ec);
+ VERIFY( !ec );
+ VERIFY( exists(p1) );
+
+ fs::path p2 = fs::temp_directory_path();
+ VERIFY( p1 == p2 );
+}
+
+void
+test02()
+{
+ clean_env();
+
+ if (::setenv("TMPDIR", __gnu_test::nonexistent_path().string().c_str(), 1))
+ return; // just give up
+
+ std::error_code ec;
+ fs::path p = fs::temp_directory_path(ec);
+ VERIFY( ec );
+ VERIFY( p == fs::path() );
+
+ std::error_code ec2;
+ try {
+ p = fs::temp_directory_path();
+ } catch (const fs::filesystem_error& e) {
+ ec2 = e.code();
+ }
+ VERIFY( ec2 == ec );
+}
+
+void
+test03()
+{
+ auto p = __gnu_test::nonexistent_path();
+ create_directories(p/"tmp");
+ permissions(p, fs::perms::none);
+ setenv("TMPDIR", (p/"tmp").c_str(), 1);
+ std::error_code ec;
+ auto r = fs::temp_directory_path(ec); // libstdc++/PR71337
+ VERIFY( ec == std::make_error_code(std::errc::permission_denied) );
+ VERIFY( r == fs::path() );
+
+ std::error_code ec2;
+ try {
+ fs::temp_directory_path();
+ } catch (const fs::filesystem_error& e) {
+ ec2 = e.code();
+ }
+ VERIFY( ec2 == ec );
+
+ permissions(p, fs::perms::owner_all, ec);
+ remove_all(p, ec);
+}
+
+void
+test04()
+{
+ __gnu_test::scoped_file f;
+ setenv("TMPDIR", f.path.c_str(), 1);
+ std::error_code ec;
+ auto r = fs::temp_directory_path(ec);
+ VERIFY( ec == std::make_error_code(std::errc::not_a_directory) );
+ VERIFY( r == fs::path() );
+
+ std::error_code ec2;
+ try {
+ fs::temp_directory_path();
+ } catch (const fs::filesystem_error& e) {
+ ec2 = e.code();
+ }
+ VERIFY( ec2 == ec );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+ test04();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+namespace fs = std::filesystem;
+
+void
+test01()
+{
+ auto dir = __gnu_test::nonexistent_path();
+ fs::create_directory(dir);
+ const auto dirc = canonical(dir);
+ fs::path foo = dir/"foo", bar = dir/"bar";
+ fs::create_directory(foo);
+ fs::create_directory(bar);
+ fs::create_directory(bar/"baz");
+ fs::create_symlink("../bar", foo/"bar");
+
+ auto p = fs::weakly_canonical(dir/"foo//./bar///../biz/.");
+ VERIFY( p == dirc/"biz/" );
+ p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.");
+ VERIFY( p == dirc/"bar/baz" );
+ p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz");
+ VERIFY( p == dirc/"bar/baz" );
+
+ const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+ std::error_code ec;
+
+ ec = bad_ec;
+ p = fs::weakly_canonical(dir/"foo//./bar///../biz/.", ec);
+ VERIFY( !ec );
+ VERIFY( p == dirc/"biz/" );
+ ec = bad_ec;
+ p = fs::weakly_canonical(dir/"foo/.//bar/././baz/.", ec);
+ VERIFY( !ec );
+ VERIFY( p == dirc/"bar/baz" );
+ ec = bad_ec;
+ p = fs::weakly_canonical(fs::current_path()/dir/"bar//../foo/bar/baz", ec);
+ VERIFY( !ec );
+ VERIFY( p == dirc/"bar/baz" );
+
+ fs::remove_all(dir, ec);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.3 path appends [path.append]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const path p("/foo/bar");
+
+ path pp = p;
+ pp /= p;
+ VERIFY( pp.native() == p.native() );
+
+ path q("baz");
+
+ path qq = q;
+ qq /= q;
+ VERIFY( qq.native() == "baz/baz" );
+
+ q /= p;
+ VERIFY( q.native() == p.native() );
+
+ path r = "";
+ r /= path();
+ VERIFY( r.empty() );
+
+ r /= path("rel");
+ VERIFY( !r.is_absolute() );
+
+ path s = "dir/";
+ s /= path("/file");
+ VERIFY( s.native() == "/file" );
+
+ s = "dir/";
+ s /= path("file");
+ VERIFY( s.native() == "dir/file" );
+}
+
+void
+test02()
+{
+ // C++17 [fs.path.append] p4
+
+ path p = path("//host") / "foo";
+ VERIFY( p == "//host/foo" );
+
+ path pp = path("//host/") / "foo";
+ VERIFY( pp == "//host/foo" );
+
+ path q = path("foo") / "";
+ VERIFY( q == "foo/" );
+
+ path qq = path("foo") / "/bar";
+ VERIFY( qq == "/bar" );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+using __gnu_test::compare_paths;
+
+void
+test01()
+{
+ for (std::string s : __gnu_test::test_paths)
+ {
+ path p0 = s, p1, p2, p3, p4;
+
+ p1 = s;
+ compare_paths(p0, p1);
+
+ p2 = s.c_str();
+ compare_paths(p0, p2);
+
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring ws(s.begin(), s.end());
+
+ p3 = ws;
+ compare_paths(p0, p3);
+
+ p4 = ws.c_str();
+ compare_paths(p0, p4);
+#endif
+ }
+}
+
+void
+test02()
+{
+ for (std::string s : __gnu_test::test_paths)
+ {
+ path p0 = s, p1, p2, p3, p4, p5, p6, p7, p8;
+
+ p1.assign(s);
+ compare_paths(p0, p1);
+
+ p2.assign( s.begin(), s.end() );
+ compare_paths(p0, p2);
+
+ p3.assign( s.c_str() );
+ compare_paths(p0, p3);
+
+ p4.assign( s.c_str(), s.c_str() + s.size() );
+ compare_paths(p0, p4);
+
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring ws(s.begin(), s.end());
+
+ p5.assign(ws);
+ compare_paths(p0, p5);
+
+ p6.assign( ws.begin(), ws.end() );
+ compare_paths(p0, p6);
+
+ p7.assign( ws.c_str() );
+ compare_paths(p0, p7);
+
+ p8.assign( ws.c_str(), ws.c_str() + ws.size() );
+ compare_paths(p0, p8);
+#endif
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <filesystem>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+using __gnu_test::compare_paths;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path copy;
+ copy = p;
+ __gnu_test::compare_paths(p, copy);
+ }
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path copy = p;
+ path move;
+ move = std::move(copy);
+ __gnu_test::compare_paths(p, move);
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.8 path compare [path.compare]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p("/foo/bar");
+ VERIFY( p.compare(p) == 0 );
+ VERIFY( p.compare("/foo//bar") == 0 );
+
+ path q("/foo/baz");
+ VERIFY( p.compare(q) < 0 );
+ VERIFY( q.compare(p) > 0 );
+
+ path r("/foo/bar/.");
+ VERIFY( p.compare(r) < 0 );
+
+ VERIFY( path("a/b/").compare("a/b//") == 0 );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.8 path compare [path.compare]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const path p0 = "/a/a/b/b";
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.compare(p) == 0 );
+ int cmp = p.compare(p0);
+ if (cmp == 0)
+ VERIFY( p0.compare(p) == 0 );
+ else if (cmp < 0)
+ VERIFY( p0.compare(p) > 0 );
+ else if (cmp > 0)
+ VERIFY( p0.compare(p) < 0 );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.8 path compare [path.compare]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const std::string s0 = "/a/a/b/b";
+ const path p0 = s0;
+ for (const std::string& s : __gnu_test::test_paths)
+ {
+ path p(s);
+ VERIFY( p.compare(s) == 0 );
+ VERIFY( p.compare(s.c_str()) == 0 );
+ VERIFY( p.compare(p0) == p.compare(s0) );
+ VERIFY( p.compare(p0) == p.compare(s0.c_str()) );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.4 path concatenation [path.concat]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const path p("/foo/bar");
+
+ path pp = p;
+ pp += p;
+ VERIFY( pp.native() == "/foo/bar/foo/bar" );
+ VERIFY( std::distance(pp.begin(), pp.end()) == 5 );
+
+ path q("foo/bar");
+
+ path qq = q;
+ qq += q;
+ VERIFY( qq.native() == "foo/barfoo/bar" );
+ VERIFY( std::distance(qq.begin(), qq.end()) == 3 );
+
+ q += p;
+ VERIFY( q.native() == "foo/bar/foo/bar" );
+ VERIFY( std::distance(q.begin(), q.end()) == 4 );
+}
+
+void
+test02()
+{
+ for (path p : __gnu_test::test_paths)
+ {
+ auto prior_native = p.native();
+ path x("//blah/di/blah");
+ p += x;
+ VERIFY( p.native() == prior_native + x.native() );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.4 path concatenation [path.concat]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p("/");
+ p += path::string_type("foo");
+ VERIFY( p.filename() == "foo" );
+ p += "bar";
+ VERIFY( p.filename() == "foobar" );
+ p += '/';
+ VERIFY( p.parent_path() == "/foobar" && p.filename() == "" );
+#if _GLIBCXX_USE_WCHAR_T
+ p += L"baz.txt";
+#else
+ p += "baz.txt";
+#endif
+ VERIFY( p.filename() == "baz.txt" );
+ p.concat("/dir/");
+ VERIFY( p.parent_path() == "/foobar/baz.txt/dir" && p.filename() == "" );
+ std::string file = "file";
+ p.concat(file.begin(), file.end());
+ VERIFY( p.filename() == "file" );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.1 path constructors [path.construct]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path copy = p;
+ __gnu_test::compare_paths(p, copy);
+ }
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path copy = p;
+ path move = std::move(copy);
+ __gnu_test::compare_paths(p, move);
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.1 path constructors [path.construct]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p;
+ VERIFY( p.empty() );
+ VERIFY( !p.has_root_path() );
+ VERIFY( !p.has_root_name() );
+ VERIFY( !p.has_root_directory() );
+ VERIFY( !p.has_relative_path() );
+ VERIFY( !p.has_parent_path() );
+ VERIFY( !p.has_filename() );
+ VERIFY( !p.has_stem() );
+ VERIFY( !p.has_extension() );
+ VERIFY( !p.is_absolute() );
+ VERIFY( p.is_relative() );
+ VERIFY( std::distance(p.begin(), p.end()) == 0 );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.1 path constructors [path.construct]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p("/foo/bar", std::locale::classic());
+ VERIFY( p.string() == "/foo/bar" );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.1 path constructors [path.construct]
+
+#include <filesystem>
+#include <string>
+#include <testsuite_fs.h>
+#include <testsuite_iterators.h>
+
+using std::filesystem::path;
+using __gnu_test::compare_paths;
+
+void
+test01()
+{
+ for (std::string s : __gnu_test::test_paths)
+ {
+ path p1 = s;
+ path p2( s.begin(), s.end() );
+ path p3( s.c_str() );
+ path p4( s.c_str(), s.c_str() + s.size() );
+
+ compare_paths(p1, p2);
+ compare_paths(p1, p3);
+ compare_paths(p1, p4);
+
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring ws(s.begin(), s.end());
+ path p5 = ws;
+ path p6( ws.begin(), ws.end() );
+ path p7( ws.c_str() );
+ path p8( ws.c_str(), ws.c_str() + ws.size() );
+
+ compare_paths(p1, p5);
+ compare_paths(p1, p6);
+ compare_paths(p1, p7);
+ compare_paths(p1, p8);
+#endif
+
+ using __gnu_test::test_container;
+ using __gnu_test::input_iterator_wrapper;
+ // Test with input iterators and const value_types
+
+ test_container<char, input_iterator_wrapper>
+ r1((char*)s.c_str(), (char*)s.c_str() + s.size());
+ path p9(r1.begin(), r1.end());
+ compare_paths(p1, p9);
+
+ test_container<char, input_iterator_wrapper>
+ r2((char*)s.c_str(), (char*)s.c_str() + s.size() + 1); // includes null-terminator
+ path p10(r2.begin());
+ compare_paths(p1, p10);
+
+ test_container<const char, input_iterator_wrapper>
+ r3(s.c_str(), s.c_str() + s.size());
+ path p11(r3.begin(), r3.end());
+ compare_paths(p1, p11);
+
+ test_container<const char, input_iterator_wrapper>
+ r4(s.c_str(), s.c_str() + s.size() + 1); // includes null-terminator
+ path p12(r4.begin());
+ compare_paths(p1, p12);
+
+#if _GLIBCXX_USE_WCHAR_T
+ // Test with input iterators and const value_types
+ test_container<wchar_t, input_iterator_wrapper>
+ r5((wchar_t*)ws.c_str(), (wchar_t*)ws.c_str() + ws.size());
+ path p13(r5.begin(), r5.end());
+ compare_paths(p1, p13);
+
+ test_container<wchar_t, input_iterator_wrapper>
+ r6((wchar_t*)ws.c_str(), (wchar_t*)ws.c_str() + ws.size() + 1); // includes null-terminator
+ path p14(r6.begin());
+ compare_paths(p1, p14);
+
+ test_container<const wchar_t, input_iterator_wrapper>
+ r7(ws.c_str(), ws.c_str() + ws.size());
+ path p15(r7.begin(), r7.end());
+ compare_paths(p1, p15);
+
+ test_container<const wchar_t, input_iterator_wrapper>
+ r8(ws.c_str(), ws.c_str() + ws.size() + 1); // includes null-terminator
+ path p16(r8.begin());
+ compare_paths(p1, p16);
+#endif
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-lstdc++fs -std=gnu++17" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.1 path constructors [path.construct]
+
+#include <filesystem>
+#include <string_view>
+#include <string>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+using __gnu_test::compare_paths;
+
+void
+test01()
+{
+ for (std::string s : __gnu_test::test_paths)
+ {
+ path p1 = s;
+ std::string_view sv(s);
+ path p2 = sv;
+ compare_paths(p1, p2);
+
+#if _GLIBCXX_USE_WCHAR_T
+ std::wstring ws(s.begin(), s.end());
+ path p3 = ws;
+ std::wstring_view wsv(ws);
+ path p4 = wsv;
+ compare_paths(p1, p4);
+#endif
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path("/foo/bar.txt").extension() == path(".txt") );
+ VERIFY( path("/foo/bar.baz.txt").extension() == path(".txt") );
+ VERIFY( path(".bar.baz.txt").extension() == path(".txt") );
+
+ VERIFY( path(".profile").extension() == path("") );
+ VERIFY( path(".profile.old").extension() == path(".old") );
+ VERIFY( path("..abc").extension() == path(".abc") );
+ VERIFY( path("...abc").extension() == path(".abc") );
+ VERIFY( path("abc..def").extension() == path(".def") );
+ VERIFY( path("abc...def").extension() == path(".def") );
+ VERIFY( path("abc.").extension() == path(".") );
+ VERIFY( path("abc..").extension() == path(".") );
+ VERIFY( path("abc.d.").extension() == path(".") );
+ VERIFY( path("..").extension() == path("") );
+ VERIFY( path(".").extension() == path("") );
+
+ VERIFY( path().extension() == path() );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ auto stem = p.stem();
+ auto ext = p.extension();
+ auto file = p.filename();
+ VERIFY( stem.native() + ext.native() == file.native() );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.4.9 path decomposition [fs.path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path("/foo/bar.txt").filename() == "bar.txt" );
+ VERIFY( path("/foo/bar").filename() == "bar" );
+ VERIFY( path("/foo/bar/").filename() == "" );
+ VERIFY( path("/").filename() == "" );
+#ifdef __CYGWIN__
+ VERIFY( path("//host").filename() == "" );
+#else
+ VERIFY( path("//host").filename() == "host" );
+#endif
+ VERIFY( path(".").filename() == "." );
+ VERIFY( path("..").filename() == ".." );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path f = p.filename();
+ if (p.empty())
+ VERIFY( f.empty() );
+ else
+ {
+ const path back = *--p.end();
+ if (back.has_root_path())
+ VERIFY( f.empty() );
+ else
+ VERIFY( f == back );
+ }
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p0;
+ VERIFY( p0.parent_path() == p0 );
+ path p1 = "foo";
+ VERIFY( p1.parent_path() == p0 );
+ path p2 = "foo/bar";
+ VERIFY( p2.parent_path() == p1 );
+ path p3 = "/foo/bar";
+ VERIFY( p3.parent_path() == path("/foo") );
+ VERIFY( p3.parent_path().parent_path() == path("/") );
+ VERIFY( p3.parent_path().parent_path().parent_path() == path("/") );
+ path p4 = "/";
+ VERIFY( p4.parent_path() == p4 );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ if (p.begin() == p.end())
+ continue;
+ if (p.has_relative_path())
+ {
+ path pp;
+ for (auto i = p.begin(), end = --p.end(); i != end; ++i)
+ {
+ pp /= *i;
+ }
+ VERIFY( p.parent_path() == pp );
+ }
+ else
+ VERIFY( p.parent_path() == p );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p1 = "foo";
+ VERIFY( p1.relative_path() == p1 );
+ path p2 = "foo/bar";
+ VERIFY( p2.relative_path() == p2 );
+ path p3 = "/foo/bar";
+ VERIFY( p3.relative_path() == p2 );
+}
+
+#include <iostream> // XXX
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ bool after_root = false;
+ const path prel = p.relative_path();
+ VERIFY( !prel.has_root_name() );
+ path rel;
+ for (const auto& cmpt : p)
+ {
+ if (!cmpt.has_root_path())
+ after_root = true;
+ if (after_root)
+ rel /= cmpt;
+ }
+ if (prel != rel)
+ std::cout << prel << ' ' << rel << '\n';
+ VERIFY( prel == rel );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p1 = "foo/bar";
+ VERIFY( p1.root_directory() == path() );
+ path p2 = "/foo/bar";
+ VERIFY( p2.root_directory() == path("/") );
+ path p3 = "//foo";
+ VERIFY( p3.root_directory() == path("/") );
+ path p4 = "///foo";
+ VERIFY( p4.root_directory() == path("/") );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path rootdir = p.root_directory();
+ VERIFY( !rootdir.has_relative_path() );
+ VERIFY( rootdir.empty() || rootdir.native() == "/");
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path("/foo/bar.txt").extension() == ".txt" );
+ VERIFY( path("/foo/bar.baz.txt").extension() == ".txt" );
+ VERIFY( path(".").extension().empty() );
+ VERIFY( path("..").extension().empty() );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.4.9 path decomposition [fs.path.decompose]
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p1 = "foo/bar";
+ VERIFY( p1.root_path() == path() );
+ path p2 = "/foo/bar";
+ VERIFY( p2.root_path() == path("/") );
+}
+
+#undef VERIFY
+#define VERIFY(X) do { if (!(X)) { __builtin_puts("FAIL: " #X); } } while(false)
+#define DUMP(X, Y, Z) do { if (!(Y == Z)) { __builtin_printf("%s %s %s\n", X.c_str(), Y.c_str(), Z.c_str()); } } while(false)
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path rootp = p.root_path();
+ path rootn = p.root_name();
+ path rootd = p.root_directory();
+ VERIFY( rootp == (rootn / rootd) );
+ DUMP(p, rootp , (rootn / rootd) );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path("/foo/bar.txt").stem() == path("bar") );
+ path p = "foo.bar.baz.tar";
+ std::vector<std::string> v;
+ for (; !p.extension().empty(); p = p.stem())
+ v.push_back(p.extension().native());
+ VERIFY( v.at(0) == ".tar" );
+ VERIFY( v.at(1) == ".baz" );
+ VERIFY( v.at(2) == ".bar" );
+
+ VERIFY( path(".profile").stem() == path(".profile") );
+ VERIFY( path(".profile.old").stem() == path(".profile") );
+ VERIFY( path("..abc").stem() == path(".") );
+ VERIFY( path("...abc").stem() == path("..") );
+ VERIFY( path("abc..def").stem() == path("abc.") );
+ VERIFY( path("abc...def").stem() == path("abc..") );
+ VERIFY( path("abc.").stem() == path("abc") );
+ VERIFY( path("abc..").stem() == path("abc.") );
+ VERIFY( path("abc.d.").stem() == path("abc.d") );
+ VERIFY( path("..").stem() == path("..") );
+ VERIFY( path(".").stem() == path(".") );
+
+ VERIFY( path().stem() == path() );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ // C++17 [fs.path.gen] p2
+ VERIFY( path("foo/./bar/..").lexically_normal() == "foo/" );
+ VERIFY( path("foo/.///bar/../").lexically_normal() == "foo/" );
+}
+
+void
+test02()
+{
+ VERIFY( path("foo/../bar").lexically_normal() == "bar" );
+ VERIFY( path("../foo/../bar").lexically_normal() == "../bar" );
+ VERIFY( path("foo/../").lexically_normal() == "." );
+ VERIFY( path("../../").lexically_normal() == "../.." );
+ VERIFY( path("../").lexically_normal() == ".." );
+ VERIFY( path("./").lexically_normal() == "." );
+ VERIFY( path().lexically_normal() == "" );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ // C++17 [fs.path.gen] p5
+ VERIFY( path("/a/d").lexically_proximate("/a/b/c") == "../../d" );
+ VERIFY( path("/a/b/c").lexically_proximate("/a/d") == "../b/c" );
+ VERIFY( path("a/b/c").lexically_proximate("a") == "b/c" );
+ VERIFY( path("a/b/c").lexically_proximate("a/b/c/x/y") == "../.." );
+ VERIFY( path("a/b/c").lexically_proximate("a/b/c") == "." );
+ VERIFY( path("a/b").lexically_proximate("c/d") == "../../a/b" );
+}
+
+void
+test02()
+{
+ path p = "a/b/c";
+ VERIFY( p.lexically_proximate(p) == "." );
+ VERIFY( p.lexically_proximate("a/../a/b/../b/c/../c/.") == "../../b/c" );
+ VERIFY( p.lexically_proximate("../../../") == p );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ // C++17 [fs.path.gen] p5
+ VERIFY( path("/a/d").lexically_relative("/a/b/c") == "../../d" );
+ VERIFY( path("/a/b/c").lexically_relative("/a/d") == "../b/c" );
+ VERIFY( path("a/b/c").lexically_relative("a") == "b/c" );
+ VERIFY( path("a/b/c").lexically_relative("a/b/c/x/y") == "../.." );
+ VERIFY( path("a/b/c").lexically_relative("a/b/c") == "." );
+ VERIFY( path("a/b").lexically_relative("c/d") == "../../a/b" );
+}
+
+void
+test02()
+{
+ path p = "a/b/c";
+ VERIFY( p.lexically_relative(p) == "." );
+ VERIFY( p.lexically_relative("a/../a/b/../b/c/../c/.") == "../../b/c" );
+ VERIFY( p.lexically_relative("../../../") == "" );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.4.7 path generic format observers [fs.path.generic.obs]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path().generic_string() == "" );
+ VERIFY( path("/").generic_string() == "/" );
+ VERIFY( path("////").generic_string() == "/" );
+#ifdef __CYGWIN__
+ VERIFY( path("//a").generic_string() == "//a" );
+ VERIFY( path("//a/").generic_string() == "//a/" );
+ VERIFY( path("//a/b").generic_string() == "//a/b" );
+#else
+ VERIFY( path("//a").generic_string() == "/a" );
+ VERIFY( path("//a/").generic_string() == "/a/" );
+ VERIFY( path("//a/b").generic_string() == "/a/b" );
+#endif
+ VERIFY( path("/a//b").generic_string() == "/a/b" );
+ VERIFY( path("/a//b/").generic_string() == "/a/b/" );
+ VERIFY( path("/a//b//").generic_string() == "/a/b/" );
+ VERIFY( path("/a//b//.").generic_string() == "/a/b/." );
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.5 path iterators [fs.path.itr]
+
+#include <filesystem>
+#include <vector>
+#include <algorithm>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ path p;
+ VERIFY( p.begin() == p.end() );
+
+ std::vector<path> v, v2;
+
+ p = "/";
+ v.assign(p.begin(), p.end());
+ v2 = { "/" };
+ VERIFY( v == v2 );
+
+ p = "filename";
+ v.assign(p.begin(), p.end());
+ v2 = { "filename" };
+ VERIFY( v == v2 );
+
+ p = "dir/.";
+ v.assign(p.begin(), p.end());
+ v2 = { "dir", "." };
+ VERIFY( v == v2 );
+
+ p = "dir/";
+ v.assign(p.begin(), p.end());
+ v2 = { "dir", "" };
+ VERIFY( v == v2 );
+
+ p = "//rootname/dir/.";
+ v.assign(p.begin(), p.end());
+#ifdef __CYGWIN__
+ v2 = { "//rootname", "/", "dir", "." };
+#else
+ v2 = { "/", "rootname", "dir", "." };
+#endif
+ VERIFY( v == v2 );
+
+ p = "//rootname/dir/";
+ v.assign(p.begin(), p.end());
+#ifdef __CYGWIN__
+ v2 = { "//rootname", "/", "dir", "" };
+#else
+ v2 = { "/", "rootname", "dir", "" };
+#endif
+ VERIFY( v == v2 );
+
+ p = "//rootname/dir/filename";
+ v.assign(p.begin(), p.end());
+#ifdef __CYGWIN__
+ v2 = { "//rootname", "/", "dir", "filename" };
+#else
+ v2 = { "/", "rootname", "dir", "filename" };
+#endif
+ VERIFY( v == v2 );
+}
+
+void
+test02()
+{
+ using reverse_iterator = std::reverse_iterator<path::iterator>;
+ std::vector<path> fwd, rev;
+
+ for (const path& p : __gnu_test::test_paths)
+ {
+ const auto begin = p.begin(), end = p.end();
+ fwd.assign(begin, end);
+ rev.assign(reverse_iterator(end), reverse_iterator(begin));
+ VERIFY( fwd.size() == rev.size() );
+ VERIFY( std::equal(fwd.begin(), fwd.end(), rev.rbegin()) );
+ }
+}
+
+void
+test03()
+{
+ path paths[] = { "single", "multiple/elements" };
+ for (const path& p : paths)
+ for (auto iter = p.begin(); iter != p.end(); ++iter)
+ {
+ auto iter2 = iter;
+ ++iter;
+ iter2++;
+ VERIFY( iter2 == iter );
+ --iter;
+ iter2--;
+ VERIFY( iter2 == iter );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+ test03();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.5 path modifiers [path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (path p : __gnu_test::test_paths)
+ {
+ path empty;
+ p.clear();
+ VERIFY( p.empty() );
+ __gnu_test::compare_paths(p, empty);
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.5 path modifiers [path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+template<typename T, T sep>
+struct checker
+{
+ static void check(const char* s) { }
+};
+
+template<>
+struct checker<char, '/'>
+{
+ static void check()
+ {
+ VERIFY( path("foo/bar").make_preferred() == "foo/bar" );
+ }
+};
+
+template<>
+struct checker<wchar_t, L'\\'>
+{
+ static void check()
+ {
+ VERIFY( path("foo/bar").make_preferred() == L"foo\\bar" );
+ }
+};
+
+void
+test01()
+{
+ checker<path::value_type, path::preferred_separator>::check();
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.4.5 path modifiers [fs.path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ // C++17 [fs.path.modifiers] p8
+ VERIFY( path("foo/bar").remove_filename() == "foo/" );
+ VERIFY( path("foo/").remove_filename() == "foo/" );
+ VERIFY( path("/foo").remove_filename() == "/" );
+ VERIFY( path("/").remove_filename() == "/" );
+}
+
+#undef VERIFY
+#define VERIFY(X) do { if (!(X)) { __builtin_puts("FAIL: " #X); } } while(false)
+#define DUMP(X, Y) do { if (!(X == Y)) { __builtin_printf("%s %s\n", X.c_str(), Y.c_str()); } } while(false)
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path p2(p);
+ p2.remove_filename();
+ p2 /= p.filename();
+ VERIFY( p2 == p );
+ DUMP( p2 , p );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.5 path modifiers [path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( path("/foo.txt").replace_extension("cpp") == "/foo.cpp" );
+ VERIFY( path("/foo.txt").replace_extension(".cpp") == "/foo.cpp" );
+ VERIFY( path("/").replace_extension("bar") == "/.bar" );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path p2 = p;
+ VERIFY(p2.replace_extension(p2.extension()) == p);
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// C++17 30.10.7.4.5 path modifiers [fs.path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ // C++17 [fs.path.modifiers] p11
+ VERIFY( path("/foo").replace_filename("bar") == "/bar" );
+ VERIFY( path("/").replace_filename("bar") == "/bar" );
+}
+
+#undef VERIFY
+#define VERIFY(X) do { if (!(X)) { __builtin_puts("FAIL: " #X); } } while(false)
+#define DUMP(X, Y) do { if (!(X == Y)) { __builtin_printf("%s %s\n", X.c_str(), Y.c_str()); } } while(false)
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path p2(p);
+ p2.replace_filename(p.filename());
+ VERIFY( p2 == p );
+ DUMP( p2 , p );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.5 path modifiers [path.modifiers]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ const path p("/foo/bar");
+ path p1;
+ path p2 = p;
+ p1.swap(p2);
+ VERIFY( p2.empty() );
+ __gnu_test::compare_paths(p1, p);
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// Copyright (C) 2016-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+#include <filesystem>
+#include <string>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+ using namespace std::filesystem;
+ const std::string s = "abc";
+ path p(s);
+
+ VERIFY( p.native() == s );
+ VERIFY( p.c_str() == s );
+ VERIFY( static_cast<std::string>(p) == s );
+
+ std::string s2 = p; // implicit conversion
+ VERIFY( s2 == p.native() );
+}
+
+void
+test02()
+{
+ using namespace std::filesystem;
+ const char* s = "abc";
+ path p(s);
+
+ auto str = p.string<char>();
+ VERIFY( str == u"abc" );
+ VERIFY( str == p.string() );
+
+ auto strw = p.string<wchar_t>();
+ VERIFY( strw == L"abc" );
+ VERIFY( strw == p.wstring() );
+
+ auto str16 = p.string<char16_t>();
+ VERIFY( str16 == u"abc" );
+ VERIFY( str16 == p.u16string() );
+
+ auto str32 = p.string<char32_t>();
+ VERIFY( str32 == U"abc" );
+ VERIFY( str32 == p.u32string() );
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.6 path non-member functions [path.non-member]
+
+#include <filesystem>
+#include <testsuite_fs.h>
+#include <testsuite_hooks.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ VERIFY( hash_value(path("a//b")) == hash_value(path("a/b")) );
+ VERIFY( hash_value(path("a/")) == hash_value(path("a//")) );
+}
+
+void
+test02()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ path pp = p.native();
+ VERIFY( hash_value(p) == hash_value(pp) );
+ }
+}
+
+int
+main()
+{
+ test01();
+ test02();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const std::string& s : __gnu_test::test_paths)
+ {
+ VERIFY( s.empty() == path(s).empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_extension() == !p.extension().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_filename() == !p.filename().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_parent_path() == !p.parent_path().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_relative_path() == !p.relative_path().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_root_directory() == !p.root_directory().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_root_name() == !p.root_name().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_root_path() == !p.root_path().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.has_stem() == !p.stem().empty() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
--- /dev/null
+// { dg-options "-std=gnu++17 -lstdc++fs" }
+// { dg-do run { target c++17 } }
+// { dg-require-filesystem-ts "" }
+
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// 8.4.9 path decomposition [path.decompose]
+
+#include <filesystem>
+#include <vector>
+#include <testsuite_hooks.h>
+#include <testsuite_fs.h>
+
+using std::filesystem::path;
+
+void
+test01()
+{
+ for (const path& p : __gnu_test::test_paths)
+ {
+ VERIFY( p.is_relative() == !p.is_absolute() );
+ }
+}
+
+int
+main()
+{
+ test01();
+}
#include <experimental/filesystem>
#include <string_view>
#include <string>
+#define USE_FILESYSTEM_TS
#include <testsuite_fs.h>
using std::experimental::filesystem::path;
#ifndef _TESTSUITE_FS_H
#define _TESTSUITE_FS_H 1
+// Assume we want std::filesystem in C++17, unless USE_FILESYSTEM_TS defined:
+#if __cplusplus >= 201703L && ! defined USE_FILESYSTEM_TS
+#include <filesystem>
+namespace test_fs = std::filesystem;
+#else
#include <experimental/filesystem>
+namespace test_fs = std::experimental::filesystem;
+#endif
#include <fstream>
#include <string>
#include <cstdio>
{
#define PATH_CHK(p1, p2, fn) \
if ( p1.fn() != p2.fn() ) \
- throw std::experimental::filesystem::filesystem_error( #fn, p1, p2, \
+ throw test_fs::filesystem_error( #fn, p1, p2, \
std::make_error_code(std::errc::invalid_argument) )
void
- compare_paths(const std::experimental::filesystem::path& p1,
- const std::experimental::filesystem::path& p2)
+ compare_paths(const test_fs::path& p1,
+ const test_fs::path& p2)
{
PATH_CHK( p1, p2, string );
PATH_CHK( p1, p2, empty );
auto d1 = std::distance(p1.begin(), p1.end());
auto d2 = std::distance(p2.begin(), p2.end());
if( d1 != d2 )
- throw std::experimental::filesystem::filesystem_error(
+ throw test_fs::filesystem_error(
"distance(begin, end)", p1, p2,
std::make_error_code(std::errc::invalid_argument) );
}
// This is NOT supposed to be a secure way to get a unique name!
// We just need a path that doesn't exist for testing purposes.
- std::experimental::filesystem::path
+ test_fs::path
nonexistent_path()
{
- std::experimental::filesystem::path p;
+ test_fs::path p;
#if defined(_GNU_SOURCE) || _XOPEN_SOURCE >= 500 || _POSIX_C_SOURCE >= 200112L
- char tmp[] = "filesystem-ts-test.XXXXXX";
+ char tmp[] = "filesystem-test.XXXXXX";
int fd = ::mkstemp(tmp);
if (fd == -1)
- throw std::experimental::filesystem::filesystem_error("mkstemp failed",
+ throw test_fs::filesystem_error("mkstemp failed",
std::error_code(errno, std::generic_category()));
::unlink(tmp);
::close(fd);
#else
std::sprintf(buf,
#endif
- "filesystem-ts-test.%d.%lu", counter++, (unsigned long) ::getpid());
+ "filesystem-test.%d.%lu", counter++, (unsigned long) ::getpid());
p = buf;
#endif
return p;
// RAII helper to remove a file on scope exit.
struct scoped_file
{
- using path_type = std::experimental::filesystem::path;
+ using path_type = test_fs::path;
enum adopt_file_t { adopt_file };
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