1 // Filesystem declarations -*- C++ -*-
3 // Copyright (C) 2014-2016 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 /** @file experimental/bits/fs_fwd.h
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{experimental/filesystem}
30 #ifndef _GLIBCXX_EXPERIMENTAL_FS_FWD_H
31 #define _GLIBCXX_EXPERIMENTAL_FS_FWD_H 1
33 #if __cplusplus < 201103L
34 # include <bits/c++0x_warning.h>
37 #include <system_error>
41 namespace std
_GLIBCXX_VISIBILITY(default)
43 namespace experimental
49 _GLIBCXX_BEGIN_NAMESPACE_VERSION
51 #if _GLIBCXX_USE_CXX11_ABI
52 inline namespace __cxx11
__attribute__((__abi_tag__ ("cxx11"))) { }
56 * @defgroup filesystem Filesystem
57 * @ingroup experimental
59 * Utilities for performing operations on file systems and their components,
60 * such as paths, regular files, and directories.
66 _GLIBCXX_BEGIN_NAMESPACE_CXX11
68 class filesystem_error
;
69 class directory_entry
;
70 class directory_iterator
;
71 class recursive_directory_iterator
;
72 _GLIBCXX_END_NAMESPACE_CXX11
81 enum class file_type
: signed char {
82 none
= 0, not_found
= -1, regular
= 1, directory
= 2, symlink
= 3,
83 block
= 4, character
= 5, fifo
= 6, socket
= 7, unknown
= 8
87 enum class copy_options
: unsigned short {
89 skip_existing
= 1, overwrite_existing
= 2, update_existing
= 4,
91 copy_symlinks
= 16, skip_symlinks
= 32,
92 directories_only
= 64, create_symlinks
= 128, create_hard_links
= 256
95 constexpr copy_options
96 operator&(copy_options __x
, copy_options __y
)
98 using __utype
= typename
std::underlying_type
<copy_options
>::type
;
99 return static_cast<copy_options
>(
100 static_cast<__utype
>(__x
) & static_cast<__utype
>(__y
));
103 constexpr copy_options
104 operator|(copy_options __x
, copy_options __y
)
106 using __utype
= typename
std::underlying_type
<copy_options
>::type
;
107 return static_cast<copy_options
>(
108 static_cast<__utype
>(__x
) | static_cast<__utype
>(__y
));
111 constexpr copy_options
112 operator^(copy_options __x
, copy_options __y
)
114 using __utype
= typename
std::underlying_type
<copy_options
>::type
;
115 return static_cast<copy_options
>(
116 static_cast<__utype
>(__x
) ^ static_cast<__utype
>(__y
));
119 constexpr copy_options
120 operator~(copy_options __x
)
122 using __utype
= typename
std::underlying_type
<copy_options
>::type
;
123 return static_cast<copy_options
>(~static_cast<__utype
>(__x
));
127 operator&=(copy_options
& __x
, copy_options __y
)
128 { return __x
= __x
& __y
; }
131 operator|=(copy_options
& __x
, copy_options __y
)
132 { return __x
= __x
| __y
; }
135 operator^=(copy_options
& __x
, copy_options __y
)
136 { return __x
= __x
^ __y
; }
140 enum class perms
: unsigned {
161 remove_perms
= 0x20000,
162 resolve_symlinks
= 0x40000
166 operator&(perms __x
, perms __y
)
168 using __utype
= typename
std::underlying_type
<perms
>::type
;
169 return static_cast<perms
>(
170 static_cast<__utype
>(__x
) & static_cast<__utype
>(__y
));
174 operator|(perms __x
, perms __y
)
176 using __utype
= typename
std::underlying_type
<perms
>::type
;
177 return static_cast<perms
>(
178 static_cast<__utype
>(__x
) | static_cast<__utype
>(__y
));
182 operator^(perms __x
, perms __y
)
184 using __utype
= typename
std::underlying_type
<perms
>::type
;
185 return static_cast<perms
>(
186 static_cast<__utype
>(__x
) ^ static_cast<__utype
>(__y
));
192 using __utype
= typename
std::underlying_type
<perms
>::type
;
193 return static_cast<perms
>(~static_cast<__utype
>(__x
));
197 operator&=(perms
& __x
, perms __y
)
198 { return __x
= __x
& __y
; }
201 operator|=(perms
& __x
, perms __y
)
202 { return __x
= __x
| __y
; }
205 operator^=(perms
& __x
, perms __y
)
206 { return __x
= __x
^ __y
; }
209 enum class directory_options
: unsigned char {
210 none
= 0, follow_directory_symlink
= 1, skip_permission_denied
= 2
213 constexpr directory_options
214 operator&(directory_options __x
, directory_options __y
)
216 using __utype
= typename
std::underlying_type
<directory_options
>::type
;
217 return static_cast<directory_options
>(
218 static_cast<__utype
>(__x
) & static_cast<__utype
>(__y
));
221 constexpr directory_options
222 operator|(directory_options __x
, directory_options __y
)
224 using __utype
= typename
std::underlying_type
<directory_options
>::type
;
225 return static_cast<directory_options
>(
226 static_cast<__utype
>(__x
) | static_cast<__utype
>(__y
));
229 constexpr directory_options
230 operator^(directory_options __x
, directory_options __y
)
232 using __utype
= typename
std::underlying_type
<directory_options
>::type
;
233 return static_cast<directory_options
>(
234 static_cast<__utype
>(__x
) ^ static_cast<__utype
>(__y
));
237 constexpr directory_options
238 operator~(directory_options __x
)
240 using __utype
= typename
std::underlying_type
<directory_options
>::type
;
241 return static_cast<directory_options
>(~static_cast<__utype
>(__x
));
244 inline directory_options
&
245 operator&=(directory_options
& __x
, directory_options __y
)
246 { return __x
= __x
& __y
; }
248 inline directory_options
&
249 operator|=(directory_options
& __x
, directory_options __y
)
250 { return __x
= __x
| __y
; }
252 inline directory_options
&
253 operator^=(directory_options
& __x
, directory_options __y
)
254 { return __x
= __x
^ __y
; }
256 typedef chrono::time_point
<chrono::system_clock
> file_time_type
;
258 // operational functions
260 void copy(const path
& __from
, const path
& __to
, copy_options __options
);
261 void copy(const path
& __from
, const path
& __to
, copy_options __options
,
262 error_code
&) noexcept
;
264 bool copy_file(const path
& __from
, const path
& __to
, copy_options __option
);
265 bool copy_file(const path
& __from
, const path
& __to
, copy_options __option
,
266 error_code
&) noexcept
;
270 file_status
status(const path
&);
271 file_status
status(const path
&, error_code
&) noexcept
;
273 bool status_known(file_status
) noexcept
;
275 file_status
symlink_status(const path
&);
276 file_status
symlink_status(const path
&, error_code
&) noexcept
;
278 bool is_regular_file(file_status
) noexcept
;
279 bool is_symlink(file_status
) noexcept
;
281 // @} group filesystem
282 _GLIBCXX_END_NAMESPACE_VERSION
284 } // namespace filesystem
285 } // namespace experimental
290 #endif // _GLIBCXX_EXPERIMENTAL_FS_FWD_H