1 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
3 * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Tighten patterns
4 for old <sstream> symbols some more.
6 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
8 * include/bits/ranges_util.h (subrange::subrange(R&&)): Use
9 direct-initialization instead of list-initialization, so a
10 potential narrowing conversion from ranges::size(r) to the
11 stored size isn't ill-formed.
13 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
15 * include/bits/parse_numbers.h (_Select_int_base): Avoid
16 narrowing conversion in constant expression.
17 * include/experimental/buffer (buffer_copy): Avoid narrowing
19 * include/experimental/internet (hash<>::operator()): Do not
20 use deprecated 'argument_type' member.
21 * include/std/variant (variant::emplace): Use cast instead
22 of implicit conversion from size_t to narrower unsigned type.
24 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
26 * include/tr1/shared_ptr.h (__shared_count, __shared_ptr)
27 (shared_ptr): Add diagnostic pragmas around uses of auto_ptr.
28 * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
29 Adust dg-error line numbers.
31 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
33 * testsuite/18_support/96817.cc: Avoid -Wunused warnings.
34 * testsuite/20_util/any/assign/2.cc: Likewise.
35 * testsuite/20_util/any/cons/2.cc: Likewise.
36 * testsuite/20_util/align/1.cc: Avoid -Wsign-compare warning.
37 * testsuite/20_util/function/65760.cc: Avoid -Wunused warning.
38 * testsuite/20_util/function/1.cc: Avoid -Wcatch-value warning.
39 * testsuite/20_util/function/cons/move_target.cc: Avoid -Wunused
41 * testsuite/20_util/headers/memory/synopsis.cc: Add exception
43 * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Avoid
44 -Wsign-compare warning.
45 * testsuite/20_util/tuple/cons/deduction.cc: Avoid -Wunused
47 * testsuite/20_util/specialized_algorithms/uninitialized_copy/808590-cxx11.cc:
48 Avoid -Wdeprecated-copy warning.
49 * testsuite/21_strings/basic_string/56166.cc: Avoid
50 -Wcatch-value warning.
51 * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
52 Avoid -Wcatch-value warnings.
53 * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
55 * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
57 * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
59 * testsuite/21_strings/basic_string/numeric_conversions/char/stold.cc:
61 * testsuite/21_strings/basic_string/numeric_conversions/char/stoll.cc:
63 * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
65 * testsuite/21_strings/basic_string/numeric_conversions/char/stoull.cc:
67 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc:
69 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stof.cc:
71 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stoi.cc:
73 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stol.cc:
75 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stold.cc:
77 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stoll.cc:
79 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stoul.cc:
81 * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stoull.cc:
83 * testsuite/21_strings/basic_string_view/operations/compare/char/nonnull.cc:
84 Prune additional diagnostics.
85 * testsuite/21_strings/basic_string_view/operations/find/char/nonnull.cc:
87 * testsuite/21_strings/basic_string_view/operations/rfind/char/nonnull.cc:
89 * testsuite/21_strings/headers/string/synopsis.cc: Add exception
91 * testsuite/22_locale/locale/cons/12352.cc: Define sized
92 delete operators to avoid warnings.
93 * testsuite/23_containers/deque/modifiers/swap/1.cc: Add
94 exception specification.
95 * testsuite/23_containers/forward_list/cons/11.cc: Avoid
96 -Wdeprecated-copy warning.
97 * testsuite/23_containers/headers/bitset/synopsis.cc: Add
98 exception specification.
99 * testsuite/23_containers/headers/deque/synopsis.cc: Likewise.
100 * testsuite/23_containers/headers/forward_list/synopsis.cc:
102 * testsuite/23_containers/headers/list/synopsis.cc: Likewise.
103 * testsuite/23_containers/headers/map/synopsis.cc: Likewise.
104 * testsuite/23_containers/headers/queue/synopsis.cc: Likewise.
105 * testsuite/23_containers/headers/set/synopsis.cc: Likewise.
106 * testsuite/23_containers/headers/vector/synopsis.cc: Likewise.
107 * testsuite/23_containers/list/modifiers/swap/1.cc: Likewise.
108 * testsuite/23_containers/map/modifiers/swap/1.cc: Likewise.
109 * testsuite/23_containers/multimap/modifiers/swap/1.cc:
111 * testsuite/23_containers/multiset/modifiers/swap/1.cc:
113 * testsuite/23_containers/set/modifiers/swap/1.cc: Likewise.
114 * testsuite/23_containers/unordered_set/56267-2.cc: Avoid
115 -Wdeprecated-copy warning.
116 * testsuite/23_containers/vector/bool/23632.cc: Avoid
117 -Wempty-body warning.
118 * testsuite/23_containers/vector/modifiers/swap/1.cc: Add
119 exception specification.
120 * testsuite/25_algorithms/heap/moveable2.cc: Fix misplaced
121 parentheses around arguments.
122 * testsuite/25_algorithms/sample/1.cc: Use return value.
123 * testsuite/25_algorithms/search/searcher.cc: Avoid -Wunused
125 * testsuite/27_io/basic_ostream/exceptions/char/9561.cc:
127 * testsuite/27_io/basic_ostream/exceptions/wchar_t/9561.cc:
129 * testsuite/27_io/filesystem/operations/remove_all.cc: Avoid
130 -Wsign-compare warning.
131 * testsuite/experimental/any/assign/2.cc: Avoid -Wunused warnings.
132 * testsuite/experimental/any/cons/2.cc: Likewise.
133 * testsuite/experimental/filesystem/operations/remove_all.cc:
134 Avoid -Wign-compare warning.
135 * testsuite/experimental/memory/observer_ptr/cons/cons.cc:
137 * testsuite/experimental/memory_resource/null_memory_resource.cc:
139 * testsuite/experimental/source_location/1.cc: Avoid -Waddress
141 * testsuite/ext/pod_char_traits.cc: Avoid -Wunused warning.
142 * testsuite/ext/vstring/modifiers/clear/56166.cc: Avoid
144 * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc:
145 Avoid -Wunused warning.
146 * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc:
148 * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
149 Prune additional warnings.
150 * testsuite/tr1/3_function_objects/function/1.cc: Avoid
151 -Wcatch-value warning.
152 * testsuite/util/replacement_memory_operators.h: Define sized
153 delete to avoid warnings.
154 * testsuite/util/testsuite_api.h (_NonDefaultConstructible): Add
155 user-declared assignment operator to stop -Wdeprecated-copy
157 * testsuite/util/testsuite_containers.h: Avoid -Wunused warning.
158 * testsuite/util/testsuite_iterators.h: Avoid -Wsign-compare
160 * testsuite/util/testsuite_new_operators.h: Define sized deleted.
162 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
164 * testsuite/25_algorithms/all_of/constexpr.cc: Check result of
166 * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
167 * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
168 * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
169 * testsuite/25_algorithms/count/constexpr.cc: Likewise.
170 * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
171 * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
172 * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
173 * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
174 * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
175 * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
176 * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
177 * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
179 * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
181 * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
182 * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
183 * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
184 * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
185 * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
186 * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
187 * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
188 * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
189 * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
190 * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
191 * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
192 * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
193 * testsuite/25_algorithms/search/constexpr.cc: Likewise.
194 * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
195 * testsuite/25_algorithms/set_intersection/constexpr.cc:
197 * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
199 * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
200 * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
201 * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
203 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
205 * include/bits/uniform_int_dist.h (_Power_of_two): Add
207 (uniform_int_distribution::_S_nd): Add static_assert to ensure
208 the wider type is twice as wide as the result type.
209 (uniform_int_distribution::__generate_impl): Add static_assert
210 and declare variables as constexpr where appropriate.
211 (uniform_int_distribution:operator()): Likewise. Only consider
212 the uniform random bit generator's range of possible results
213 when deciding whether _S_nd can be used, not the __uctype type.
215 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
217 * include/ext/rope (_Refcount_Base::_M_ref_count): Remove
219 (_Refcount_Base::_M_decr()): Likewise.
221 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
223 * include/bits/std_function.h (_Function_handler<void, void>):
224 Define explicit specialization used for invalid target types.
225 (_Base_manager::_M_manager) [!__cpp_rtti]: Return null.
226 (function::target_type()): Check for null pointer.
227 (function::target()): Define unconditionall. Fix bug with
228 const_cast of function pointer type.
229 (function::target() const): Define unconditionally, but
230 only use RTTI if enabled.
231 * testsuite/20_util/function/target_no_rtti.cc: New test.
233 2020-10-29 Patrick Palka <ppalka@redhat.com>
235 * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
236 (test03): Fix initializing the vector vy with the array y of size 4.
238 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
240 * include/bits/hashtable_policy.h (_Local_iterator_base): Cast
241 value to avoid -Wsign-compare warnings.
242 * include/bits/regex.h (sub_match::_M_str): Avoid narrowing
244 * include/bits/regex_compiler.tcc (_Compiler::_M_quantifier):
245 Initialize variable to avoid -Wmaybe-uninitialized warning.
246 * include/bits/shared_ptr_base.h (_Sp_counted_deleter::_Impl):
247 Reorder mem-initializer-list to avoid -Wreorder warning.
248 * include/bits/stl_tree.h (_Rb_tree_impl): Explicitly
249 initialize base class in copy constructor.
250 * include/debug/safe_iterator.h (_Safe_iterator): Likewise.
251 * include/ext/debug_allocator.h: Reorder mem-initializer-list
252 to avoid -Wreorder warning.
253 * include/ext/throw_allocator.h (throw_allocator_limit)
254 (throw_allocator_random): Add user-declared assignment operators
255 to avoid -Wdeprecated-copy warnings.
257 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
259 * include/bits/uniform_int_dist.h (uniform_int_distribution):
260 Rename _UniformRandomNumberGenerator template parameters to
261 _UniformRandomBitGenerator, as per P0346R1.
263 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
265 * include/std/sstream (basic_stringbuf(__string_type&&, openmode)):
266 Call _M_init_syncbuf to set up get/put areas. Also qualify
269 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
271 * config/abi/pre/gnu.ver (GLIBCXX_3.4.29): Remove duplicate
273 (CXXABI_1.3.13): Restore missing piece.
275 2020-10-28 Thomas Rodgers <trodgers@redhat.com>
277 * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++20.
278 * config/abi/pre/gnu.ver (GLIBCXX_3.4.29): New symbols.
279 * configure: Regenerate.
280 * include/std/sstream:
281 (basic_stringbuf::basic_stringbuf(allocator const&)): New constructor.
282 (basic_stringbuf::basic_stringbuf(openmode, allocator const&)): Likewise.
283 (basic_stringbuf::basic_stringbuf(basic_string&&, openmode)): Likewise.
284 (basic_stringbuf::basic_stringbuf(basic_stringbuf&&, allocator const&)):
286 (basic_stringbuf::get_allocator()): New method.
287 (basic_stringbuf::view()): Likewise.
288 (basic_istringstream::basic_istringstream(basic_string&&, openmode)):
290 (basic_istringstream::basic_istringstream(openmode, allocator const&)):
292 (basic_istringstream::view()): New method.
293 (basic_ostringstream::basic_ostringstream(basic_string&&, openmode)):
295 (basic_ostringstream::basic_ostringstream(openmode, allocator const&)):
297 (basic_ostringstream::view()): New method.
298 (basic_stringstream::basic_stringstream(basic_string&&, openmode)):
300 (basic_stringstream::basic_stringstream(openmode, allocator const&)):
302 (basic_stringstream::view()): New method.
303 * src/Makefile.in: Add c++20 directory.
304 * src/Makefile.am: Regenerate.
305 * src/c++20/Makefile.am: Add makefile for new sub-directory.
306 * src/c++20/Makefile.in: Generate.
307 * src/c++20/sstream-inst.cc: New file defining explicit
308 instantiations for basic_stringbuf, basic_istringstream,
309 basic_ostringstream, and basic_stringstream member functions
311 * testsuite/27_io/basic_stringbuf/cons/char/2.cc: New test.
312 * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
313 * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
314 * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
315 * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
316 * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc: Likewise.
317 * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
318 * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc: Likewise.
319 * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
320 * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc: Likewise.
321 * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
322 * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc: Likewise.
323 * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
324 * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc: Likewise.
325 * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
326 * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc: Likewise.
328 2020-10-28 Patrick Palka <ppalka@redhat.com>
331 * include/std/chrono (year_month_weekday::operator sys_days):
332 Cast the result of index() to int so that the initializer for
333 days{} is sign-extended when it's converted to the underlying
335 * testsuite/std/time/year_month_weekday/3.cc: New test.
337 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
339 * libsupc++/new_opnt.cc (new): Add comment about forced unwind
342 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
345 * config/os/mingw32-w64/os_defines.h (_GLIBCXX_BUFSIZ):
347 * config/os/mingw32/os_defines.h (_GLIBCXX_BUFSIZ):
349 * include/bits/fstream.tcc: Use _GLIBCXX_BUFSIZ instead
351 * include/ext/stdio_filebuf.h: Likewise.
352 * include/std/fstream (_GLIBCXX_BUFSIZ): Define.
354 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
357 * include/bits/valarray_after.h (_DEFINE_EXPR_UNARY_OPERATOR)
358 (_DEFINE_EXPR_BINARY_OPERATOR, _DEFINE_EXPR_BINARY_FUNCTION):
359 Use elaborated-type-specifier and qualified-id to avoid
360 ambiguities with QNX system headers.
361 * testsuite/26_numerics/valarray/95592.cc: New test.
363 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
366 * include/std/span (span): Reorder data members to match common
367 implementations of struct iovec.
368 * testsuite/23_containers/span/layout_compat.cc: New test.
370 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
372 * include/std/functional (std::_Placeholder): Define for C++98
373 as well as later standards.
374 * include/tr1/functional (std::placeholders::_1 etc): Declare
376 (tr1::_Placeholder): Replace with using-declaration for
378 (tr1::placeholders::_1 etc.): Replace with using-directive for
381 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
383 * include/tr1/ell_integral.tcc (__ellint_rf, __ellint_rd)
384 (__ellint_rc, __ellint_rj): Remove unused variables.
385 * include/tr1/modified_bessel_func.tcc (__airy): Likewise.
387 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
389 * include/bits/locale_conv.h (__str_codecvt_out_all):
390 Add cast to compare operands of the same signedness.
391 * include/bits/locale_facets_nonio.tcc
392 (time_get::_M_extract_wday_or_month): Likewise.
393 * include/bits/sstream.tcc (basic_stringbuf::overflow):
395 * include/tr1/legendre_function.tcc (__sph_legendre): Use
396 unsigned for loop variable.
398 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
400 * include/std/charconv (from_chars): Add noexcept to match
401 definitions in src/c++17/floating_from_chars.cc
403 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
405 * src/c++17/fs_dir.cc (fs::directory_iterator::operator*):
406 Add noexcept. Do not throw on precondition violation.
408 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
410 * include/bits/fs_path.h (path::_List::begin, path::_List::end):
411 Add noexcept to match definitions in src/c++17/fs_path.cc.
413 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
415 * testsuite/experimental/memory_resource/new_delete_resource.cc:
416 Add missing <cstdint> header.
417 * testsuite/experimental/memory_resource/resource_adaptor.cc:
420 2020-10-26 Jonathan Wakely <jwakely@redhat.com>
422 * include/experimental/executor (strand::_State): Fix thinko.
424 2020-10-26 Ville Voutilainen <ville.voutilainen@gmail.com>
426 * include/std/type_traits (__is_nt_constructible_impl): Remove.
427 (__is_nothrow_constructible_impl): Adjust.
428 (is_nothrow_default_constructible): Likewise.
429 (__is_nt_assignable_impl): Remove.
430 (__is_nothrow_assignable_impl): Adjust.
432 2020-10-26 Jonathan Wakely <jwakely@redhat.com>
435 * libsupc++/new_opa.cc: Declare size_t in global namespace.
436 Remove unused header.
438 2020-10-26 Stephan Bergmann <sbergman@redhat.com>
440 * include/bits/shared_ptr_base.h
441 (_Sp_counted_base::_M_add_ref_lock_nothrow(): Add noexcept to
442 definitions to match declaration.
443 (__shared_count(const __weak_count&, nothrow_t)): Add noexcept
444 to declaration to match definition.
446 2020-10-23 Patrick Palka <ppalka@redhat.com>
448 * include/std/ranges (single_view::single_view): Mark the
449 in place constructor explicit as per LWG 3428.
450 (take_view): Remove the constraint on the deduction guide's
451 template parameter as per LWG 3447.
453 2020-10-23 Jonathan Wakely <jwakely@redhat.com>
455 * include/experimental/memory_resource: Include <tuple>.
456 (polymorphic_allocator::construct): Qualify forward_as_tuple.
457 * include/std/memory_resource: Likewise.
459 2020-10-22 Jonathan Wakely <jwakely@redhat.com>
461 * testsuite/30_threads/condition_variable/members/68519.cc:
462 Define recent_epoch_float_clock::duration to meet the Cpp17Clock
465 2020-10-22 Jonathan Wakely <jwakely@redhat.com>
467 * include/std/shared_mutex: Only include <condition_variable>
468 when pthread_rwlock_t and POSIX timers are not available.
469 (__cpp_lib_shared_mutex, __cpp_lib_shared_timed_mutex): Change
470 value to be type 'long'.
471 * include/std/version (__cpp_lib_shared_mutex)
472 (__cpp_lib_shared_timed_mutex): Likewise.
474 2020-10-22 Jonathan Wakely <jwakely@redhat.com>
476 * include/Makefile.am: Add new header.
477 * include/Makefile.in: Regenerate.
478 * include/bits/shared_ptr.h: Include <iosfwd>.
479 * include/bits/shared_ptr_base.h: Include required headers here
480 directly, instead of in <memory>.
481 * include/bits/uses_allocator_args.h: New file. Move utility
482 functions for uses-allocator construction from <memory> to here.
483 Only define the utility functions when concepts are available.
484 (__cpp_lib_make_obj_using_allocator): Define non-standard
486 * include/std/condition_variable: Remove unused headers.
487 * include/std/future: Likewise.
488 * include/std/memory: Remove headers that are not needed
489 directly, and are now inclkuded where they're needed. Include
490 new <bits/uses_allocator_args.h> header.
491 * include/std/memory_resource: Include only the necessary
492 headers. Use new feature test macro to detect support for the
494 * include/std/scoped_allocator: Likewise.
495 * include/std/version (__cpp_lib_make_obj_using_allocator):
498 2020-10-22 Olivier Hainque <hainque@adacore.com>
500 * crossconfig.m4: Turn vxworks matcher into vxworks*.
501 * configure.host: Likewise.
502 * configure: Regenerate.
504 2020-10-21 Jonathan Wakely <jwakely@redhat.com>
506 * include/bits/shared_ptr.h (shared_ptr(const weak_ptr&, nothrow_t)):
508 * include/bits/shared_ptr_base.h (_Sp_counted_base::_M_add_ref_lock):
509 Remove specializations and just call _M_add_ref_lock_nothrow.
510 (__shared_count, __shared_ptr): Use nullptr for null pointer
512 (__shared_count(const __weak_count&)): Use _M_add_ref_lock_nothrow
513 instead of _M_add_ref_lock.
514 (__shared_count(const __weak_count&, nothrow_t)): Add noexcept.
515 (__shared_ptr::operator bool()): Add noexcept.
516 (__shared_ptr(const __weak_ptr&, nothrow_t)): Add noexcept.
518 2020-10-21 Jonathan Wakely <jwakely@redhat.com>
521 * include/bits/ranges_util.h (tuple_size<subrange>)
522 (tuple_element<I, cv subrange>): Move here from ...
523 * include/std/ranges: ... here.
524 * testsuite/std/ranges/subrange/97512.cc: New test.
526 2020-10-21 Thomas Rodgers <trodgers@redhat.com>
528 * include/pstl/algorithm_impl.h: Update file.
529 * include/pstl/execution_impl.h: Likewise.
530 * include/pstl/glue_algorithm_impl.h: Likewise.
531 * include/pstl/glue_memory_impl.h: Likewise.
532 * include/pstl/glue_numeric_impl.h: Likewise.
533 * include/pstl/memory_impl.h: Likewise.
534 * include/pstl/numeric_impl.h: Likewise.
535 * include/pstl/parallel_backend.h: Likewise.
536 * include/pstl/parallel_backend_serial.h: Likewise.
537 * include/pstl/parallel_backend_tbb.h: Likewise.
538 * include/pstl/parallel_backend_utils.h: Likewise.
539 * include/pstl/pstl_config.h: Likewise.
540 * include/pstl/unseq_backend_simd.h: Likewise.
542 2020-10-20 François Dumont <fdumont@gcc.gnu.org>
544 * include/bits/hashtable_policy.h
545 (_Hash_node_value_base<>): Remove _Hash_node_base inheritance.
546 (_Hash_node_code_cache<bool _Cache_hash_code>): New.
547 (_Hash_node_value<typename _Value, bool _Cache_hash_code>): New.
548 (_Hash_node<>): Inherits _Hash_node_base<> and _Hash_node_value<>.
549 (_Map_base<>::__node_type): Remove.
550 (_Map_base<>::iterator): Remove.
551 (_Insert_base<>::__hash_cached): New.
552 (_Insert_base<>::__constant_iterators): New.
553 (_Insert_base<>::__hashtable_alloc): New.
554 (_Insert_base<>::__node_type): Remove.
555 (_Insert_base<>::__node_ptr): New.
556 (_Hash_code_base<>): Remove specializations.
557 (_Hash_code_base<>::__node_type): Remove.
558 (_Hash_code_base<>::_M_bucket_index(const __node_type*, size_t)):
560 (_Hash_code_base<>::_M_bucket_index(const _Hash_node_value<>&, size_t)):
562 (_Hash_code_base<>::_M_store_code(__node_type*, __hash_code)):
564 (_Hash_code_base<>::_M_store_code(_Hash_node_code_cache<>&, __hash_code)):
566 (_Hash_code_base<>::_M_copy_code(__node_type*, const __node_type*)):
568 (_Hash_code_base<>::_M_copy_code(_Hash_node_code_cache<>&,
569 const _Hash_node_code_base<>&)): ...this.
570 (_Hashtable_base<>::__constant_iterators): Remove.
571 (_Hashtable_base<>::__unique_keys): Remove.
572 (_Hashtable_base<>::__node_type): Remove.
573 (_Hashtable_base<>::iterator): Remove.
574 (_Hashtable_base<>::const_iterator): Remove.
575 (_Hashtable_base<>::local_iterator): Remove.
576 (_Hashtable_base<>::const_local_iterator): Remove.
577 (_Hashtable_base<>::__ireturn_type): Remove.
578 (_Hashtable_base<>::_Equal_hash_code<>::_S_equals): Replace by...
579 (_Hashtable_base<>::_S_equals(__hash_code, const _Hash_node_code_hash<>&)):
581 (_Hashtable_base<>::_Equal_hash_code<>::_S_node_equals): Replace by...
582 (_Hashtable_base<>::_S_node_equals(__hash_code,
583 const _Hash_node_code_hash<>&)): ...this.
584 (_Hashtable_base<>::_Equal_hash_code<>): Remove.
585 (_Hashtable_base<>::_M_equals): Adapt.
586 (_Hashtable_baxe<>::_M_node_equals): Adapt.
587 (_Equality<>::_M_equal): Adapt.
588 (_Hashtable_alloc<>::__node_ptr): New.
589 (_Hashtable_alloc<>::__bucket_type): Rename into...
590 (_Hashtable_alloc<>::__node_base_ptr): ...this.
591 (_Hashtable_alloc<>::__bucket_alloc_type): Rename into...
592 (_Hashtable_alloc<>::__buckets_alloc_type): ...this.
593 (_Hashtable_alloc<>::__bucket_alloc_traits): Rename into...
594 (_Hashtable_alloc<>::__buckets_alloc_traits): ...this.
595 (_Hashtable_alloc<>::__buckets_ptr): New.
596 (_Hashtable_alloc<>::_M_allocate_node): Adapt.
597 (_Hashtable_alloc<>::_M_deallocate_node): Adapt.
598 (_Hashtable_alloc<>::_M_deallocate_node_ptr): Adapt.
599 (_Hashtable_alloc<>::_M_deallocate_nodes): Adapt.
600 (_Hashtable_alloc<>::_M_allocate_buckets): Adapt.
601 (_Hashtable_alloc<>::_M_deallocate_buckets): Adapt.
602 * include/bits/hashtable.h (_Hashtable<>): Adapt.
604 2020-10-20 Aldy Hernandez <aldyh@redhat.com>
606 * testsuite/21_strings/basic_string/capacity/1.cc: Pass
607 -Wno-stringop-overflow to test.
609 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
612 * include/std/coroutine (__noop_coro_frame): Replace with
613 noop_coroutine_handle::__frame.
614 (__dummy_resume_destroy): Define inline in __frame.
615 (__noop_coro_fr): Replace with noop_coroutine_handle::_S_fr
616 and define as inline.
617 * testsuite/18_support/coroutines/95917.cc: New test.
619 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
621 * include/std/coroutine (coroutine_handle<_Promise>): Remove
622 base class. Add constructors, conversions, accessors etc. as
623 proposed for LWG 3460.
624 (coroutine_handle<noop_coroutine_promise>): Likewise.
625 * testsuite/18_support/coroutines/lwg3460.cc: New test.
627 2020-10-19 Jonathan Wakely <jwakely@redhat.com>
629 * include/bits/unique_ptr.h (make_unique_for_overwrite): Define
631 * testsuite/20_util/unique_ptr/creation/array_neg.cc: Remove
632 unused header. Adjust standard reference.
633 * testsuite/20_util/unique_ptr/creation/for_overwrite.cc: New test.
634 * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc: New test.
636 2020-10-19 Jonathan Wakely <jwakely@redhat.com>
638 * include/std/tuple (_Head_base<Idx, Head, true>): Use reserved
639 form of __no_unique_address__ attribute because
640 no_unique_address is not reserved prior to C++20.
642 2020-10-19 Jonathan Wakely <jwakely@redhat.com>
644 * include/bits/node_handle.h (_Node_handle_common): Replace
645 std::optional with custom type.
646 * testsuite/20_util/variant/exception_safety.cc: Add missing
649 2020-10-19 Jonathan Wakely <jwakely@redhat.com>
651 * include/precompiled/expc++.h: Removed.
653 2020-10-17 Ville Voutilainen <ville.voutilainen@gmail.com>
656 * include/std/variant
657 (__gen_vtable_impl<>::_S_apply_single_alt):
658 Diagnose visitor return type mismatches here..
659 (__gen_vtable_impl</*base case*/>::_S_apply):
662 2020-10-15 Jonathan Wakely <jwakely@redhat.com>
664 * include/std/concepts: Fix typos in copyright notice.
665 * include/std/ranges: Likewise.
667 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
670 * include/std/sstream (basic_stringbuf::str()): Check for
671 null egptr() before comparing to non-null pptr().
673 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
675 * testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc:
676 Do not generate debug info.
677 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc:
680 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
682 * include/bits/basic_string.h (basic_string(const Alloc&))
683 (basic_string(const basic_string&)
684 (basic_string(const CharT*, size_type, const Alloc&))
685 (basic_string(const CharT*, const Alloc&))
686 (basic_string(size_type, CharT, const Alloc&))
687 (basic_string(initializer_list<CharT>, const Alloc&))
688 (basic_string(InputIterator, InputIterator, const Alloc&)):
689 Define inline in class body.
690 * include/bits/basic_string.tcc (basic_string(const Alloc&))
691 (basic_string(const basic_string&)
692 (basic_string(const CharT*, size_type, const Alloc&))
693 (basic_string(const CharT*, const Alloc&))
694 (basic_string(size_type, CharT, const Alloc&))
695 (basic_string(initializer_list<CharT>, const Alloc&))
696 (basic_string(InputIterator, InputIterator, const Alloc&)):
697 Move definitions into class body.
699 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
701 * testsuite/lib/libstdc++.exp (check_effective_target_cxx11-abi):
702 Add comments about which test flags get used by the check.
704 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
706 * testsuite/21_strings/basic_string/allocator/char/copy.cc: Make
707 comment more precise about what isn't supported by COW strings.
708 * testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
710 * testsuite/21_strings/basic_string/allocator/char/move.cc:
712 * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
714 * testsuite/21_strings/basic_string/allocator/char/noexcept.cc:
716 * testsuite/21_strings/basic_string/allocator/char/operator_plus.cc:
718 * testsuite/21_strings/basic_string/allocator/char/swap.cc:
720 * testsuite/21_strings/basic_string/allocator/wchar_t/copy.cc:
722 * testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
724 * testsuite/21_strings/basic_string/allocator/wchar_t/move.cc:
726 * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
728 * testsuite/21_strings/basic_string/allocator/wchar_t/noexcept.cc:
730 * testsuite/21_strings/basic_string/allocator/wchar_t/operator_plus.cc:
732 * testsuite/21_strings/basic_string/allocator/wchar_t/swap.cc:
735 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
737 * testsuite/21_strings/basic_string/allocator/char/minimal.cc:
738 Do not require cxx11-abi effective target.
739 * testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc:
741 * testsuite/27_io/basic_fstream/cons/base.cc: Likewise.
743 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
745 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
746 (basic_string(const _CharT*, const _Alloc&)): Constrain to
747 require an allocator-like type to fix CTAD ambiguity (LWG 3706).
748 * testsuite/21_strings/basic_string/cons/char/deduction.cc:
750 * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
753 2020-10-13 Nuno Lopes <nuno.lopes@ist.utl.pt>
755 * include/bits/stl_algo.h (any_of): Fix incorrect description
758 2020-10-13 Jonathan Wakely <jwakely@redhat.com>
760 * doc/xml/manual/evolution.xml: Document some API changes
762 * doc/xml/manual/intro.xml: Document LWG 2499.
763 * doc/xml/manual/status_cxx2020.xml: Update status.
764 * doc/html/*: Regenerate.
766 2020-10-13 Jonathan Wakely <jwakely@redhat.com>
768 * doc/xml/book.txml: Remove trailing whitespace.
769 * doc/xml/chapter.txml: Likewise.
770 * doc/xml/class.txml: Likewise.
771 * doc/xml/gnu/fdl-1.3.xml: Likewise.
772 * doc/xml/gnu/gpl-3.0.xml: Likewise.
773 * doc/xml/manual/abi.xml: Likewise.
774 * doc/xml/manual/algorithms.xml: Likewise.
775 * doc/xml/manual/allocator.xml: Likewise.
776 * doc/xml/manual/appendix_contributing.xml: Likewise.
777 * doc/xml/manual/appendix_free.xml: Likewise.
778 * doc/xml/manual/appendix_porting.xml: Likewise.
779 * doc/xml/manual/atomics.xml: Likewise.
780 * doc/xml/manual/auto_ptr.xml: Likewise.
781 * doc/xml/manual/backwards_compatibility.xml: Likewise.
782 * doc/xml/manual/bitmap_allocator.xml: Likewise.
783 * doc/xml/manual/build_hacking.xml: Likewise.
784 * doc/xml/manual/codecvt.xml: Likewise.
785 * doc/xml/manual/concurrency.xml: Likewise.
786 * doc/xml/manual/concurrency_extensions.xml: Likewise.
787 * doc/xml/manual/configure.xml: Likewise.
788 * doc/xml/manual/containers.xml: Likewise.
789 * doc/xml/manual/ctype.xml: Likewise.
790 * doc/xml/manual/debug.xml: Likewise.
791 * doc/xml/manual/debug_mode.xml: Likewise.
792 * doc/xml/manual/diagnostics.xml: Likewise.
793 * doc/xml/manual/documentation_hacking.xml: Likewise.
794 * doc/xml/manual/evolution.xml: Likewise.
795 * doc/xml/manual/internals.xml: Likewise.
796 * doc/xml/manual/intro.xml: Likewise.
797 * doc/xml/manual/io.xml: Likewise.
798 * doc/xml/manual/iterators.xml: Likewise.
799 * doc/xml/manual/locale.xml: Likewise.
800 * doc/xml/manual/localization.xml: Likewise.
801 * doc/xml/manual/messages.xml: Likewise.
802 * doc/xml/manual/mt_allocator.xml: Likewise.
803 * doc/xml/manual/numerics.xml: Likewise.
804 * doc/xml/manual/parallel_mode.xml: Likewise.
805 * doc/xml/manual/policy_data_structures.xml: Likewise.
806 * doc/xml/manual/prerequisites.xml: Likewise.
807 * doc/xml/manual/shared_ptr.xml: Likewise.
808 * doc/xml/manual/spine.xml: Likewise.
809 * doc/xml/manual/status_cxxtr1.xml: Likewise.
810 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
811 * doc/xml/manual/strings.xml: Likewise.
812 * doc/xml/manual/support.xml: Likewise.
813 * doc/xml/manual/test.xml: Likewise.
814 * doc/xml/manual/test_policy_data_structures.xml: Likewise.
815 * doc/xml/manual/using.xml: Likewise.
816 * doc/xml/manual/using_exceptions.xml: Likewise.
817 * doc/xml/manual/utilities.xml: Likewise.
818 * doc/html/*: Regenerate.
820 2020-10-12 Patrick Palka <ppalka@redhat.com>
822 * include/std/ranges (take_while_view::begin): Constrain the
823 const overload further as per LWG 3450.
824 (take_while_view::end): Likewise.
825 * testsuite/std/ranges/adaptors/take_while.cc: Add test for LWG
828 2020-10-12 Patrick Palka <ppalka@redhat.com>
831 * include/std/ranges (take_view::_CI): Define this alias
832 template as per LWG 3449 and remove ...
833 (take_view::_Sentinel::_CI): ... this type alias.
834 (take_view::_Sentinel::operator==): Adjust use of _CI
835 accordingly. Define a second overload that accepts an iterator
836 of the opposite constness as per LWG 3449.
837 (take_while_view::_Sentinel::operator==): Likewise.
838 * testsuite/std/ranges/adaptors/95322.cc: Add tests for LWG 3449.
840 2020-10-12 Jonathan Wakely <jwakely@redhat.com>
842 * doc/doxygen/user.cfg.in: Update to Doxygen 1.8.20 format.
844 2020-10-12 Jonathan Wakely <jwakely@redhat.com>
846 * doc/doxygen/user.cfg.in (PREDEFINED): Use __cplusplus=201703L
847 so that C++17 features are documented.
849 2020-10-12 Jonathan Wakely <jwakely@redhat.com>
851 * include/bits/stl_algobase.h (copy, move, copy_backward)
852 (move_backward): Fix documentation for returned iterator.
854 2020-10-12 Martin Sebor <msebor@redhat.com>
857 * libsupc++/new (operator new): Add attribute alloc_size and malloc.
859 2020-10-11 Clement Chigot <clement.chigot@atos.net>
861 * config/os/aix/t-aix: Add complementary mode object file to
864 2020-10-10 Jonathan Wakely <jwakely@redhat.com>
867 * doc/html/manual/source_code_style.html: Regenerate.
868 * doc/xml/manual/appendix_contributing.xml: Add __deref to
870 * include/debug/functions.h (_Irreflexive_checker::__deref):
872 * testsuite/17_intro/badnames.cc: Check __deref.
874 2020-10-10 Ville Voutilainen <ville.voutilainen@gmail.com>
876 * include/std/variant (__check_visitor_result):
877 Use size_t for indexes.
878 (__check_visitor_results): Likewise.
880 2020-10-09 Ville Voutilainen <ville.voutilainen@gmail.com>
883 * include/std/variant (__deduce_visit_result): Add a nested ::type.
884 (__gen_vtable_impl</*base case*/>::_S_apply):
885 Check the visitor return type.
887 (__check_visitor_result): Likewise.
888 (__check_visitor_results): Likewise.
889 (visit(_Visitor&&, _Variants&&...)): Use __check_visitor_results
890 in case we're visiting just one variant.
891 * testsuite/20_util/variant/visit_neg.cc: Adjust.
893 2020-10-09 Jonathan Wakely <jwakely@redhat.com>
896 * include/bits/random.tcc (seed_seq::generate): Use uint32_t for
897 calculations. Also split the first loop into three loops to
898 avoid branching on k on every iteration, resolving PR 94823.
899 * testsuite/26_numerics/random/seed_seq/97311.cc: New test.
900 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-erro
903 2020-10-09 Daniel Lemire <lemire@gmail.com>
905 * include/bits/uniform_int_dist.h (uniform_int_distribution::_S_nd):
906 New member function implementing Lemire's "nearly divisionless"
908 (uniform_int_distribution::operator()): Use _S_nd when the range
909 of the URBG is the full width of the result type.
911 2020-10-09 Jonathan Wakely <jwakely@redhat.com>
913 * testsuite/Makefile.am: Set and export variable separately.
914 * testsuite/Makefile.in: Regenerate.
916 2020-10-09 Jonathan Wakely <jwakely@redhat.com>
918 * scripts/check_performance: Use gnu++11 instead of gnu++0x.
919 * testsuite/Makefile.am (check-performance): Export CXXFLAGS to
921 * testsuite/Makefile.in: Regenerate.
923 2020-10-09 Jonathan Wakely <jwakely@redhat.com>
925 * testsuite/performance/26_numerics/random_dist.cc: New test.
927 2020-10-09 Jonathan Wakely <jwakely@redhat.com>
929 * testsuite/util/testsuite_performance.h (report_header): Remove
932 2020-10-08 Patrick Palka <ppalka@redhat.com>
935 * include/bits/ranges_uninitialized.h:
936 (__construct_at_fn::operator()): Rewrite in terms of
937 std::construct_at. Declare it conditionally noexcept. Qualify
938 calls to declval in its requires-clause.
939 * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
942 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
945 * include/bits/random.tcc
946 (discrete_distribution::param_type::_M_initialize)
947 (piecewise_constant_distribution::param_type::_M_initialize)
948 (piecewise_linear_distribution::param_type::_M_initialize):
949 Add assertions for positive sums..
950 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
953 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
955 * include/bits/ios_base.h (ios_base::failure): Add constructors
956 takeing error_code argument. Add code() member function.
957 * testsuite/27_io/ios_base/failure/cxx11.cc: Allow test to
958 run for the old ABI but do not check for derivation from
960 * testsuite/27_io/ios_base/failure/error_code.cc: New test.
962 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
964 * include/bits/random.h (__detail::_Mod): Revert last change.
965 (__detail::__mod): Do not use _Mod for a==0 case.
966 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
967 Check other cases with a==0. Also check runtime results.
968 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
971 2020-10-07 Jonathan Wakely <jwakely@redhat.com>
973 * include/bits/random.h (__detail::_Mod): Avoid divide by zero.
974 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
977 2020-10-07 Jonathan Wakely <jwakely@redhat.com>
979 * include/bits/random.h (seed_seq(initializer_list<T>)): Rename
980 parameter to use reserved name.
981 * include/bits/ranges_algo.h (shift_left, shift_right): Rename
982 template parameters to use reserved name.
983 * libsupc++/exception_ptr.h (exception_ptr): Likewise for
984 parameters and local variables.
985 * testsuite/17_intro/names.cc: Check "il". Do not check "d" and
988 2020-10-06 Jonathan Wakely <jwakely@redhat.com>
991 * config/abi/pre/gnu.ver (CXXABI_1.3.13): New symbol version.
992 (exception_ptr::_M_addref(), exception_ptr::_M_release()):
994 * libsupc++/eh_ptr.cc (exception_ptr::exception_ptr()):
995 Remove out-of-line definition.
996 (exception_ptr::exception_ptr(const exception_ptr&)):
998 (exception_ptr::~exception_ptr()): Likewise.
999 (exception_ptr::operator=(const exception_ptr&)):
1001 (exception_ptr::swap(exception_ptr&)): Likewise.
1002 (exception_ptr::_M_addref()): Add branch prediction.
1003 * libsupc++/exception_ptr.h (exception_ptr::operator bool):
1005 [!_GLIBCXX_EH_PTR_COMPAT] (operator==, operator!=): Define
1006 inline as hidden friends. Remove declarations at namespace
1008 (exception_ptr::exception_ptr()): Define inline.
1009 (exception_ptr::exception_ptr(const exception_ptr&)):
1011 (exception_ptr::~exception_ptr()): Likewise.
1012 (exception_ptr::operator=(const exception_ptr&)):
1014 (exception_ptr::swap(exception_ptr&)): Likewise.
1015 * testsuite/util/testsuite_abi.cc: Add CXXABI_1.3.13.
1016 * testsuite/18_support/exception_ptr/90295.cc: New test.
1018 2020-10-06 Jonathan Wakely <jwakely@redhat.com>
1020 * include/std/ranges (join_view): Remove deduction guide.
1021 (views::join): Add explicit template argument list to prevent
1022 deducing the wrong type.
1023 * testsuite/std/ranges/adaptors/join.cc: Move test for LWG 3474
1025 * testsuite/std/ranges/adaptors/join_lwg3474.cc: Removed.
1027 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
1029 * include/bits/regex.h: Use __int_traits<int> instead of
1030 std::numeric_limits<int>.
1031 * include/bits/uniform_int_dist.h: Use __int_traits<T>::__max
1032 instead of std::numeric_limits<T>::max().
1033 * include/bits/hashtable_policy.h: Use size_t(-1) instead of
1034 std::numeric_limits<size_t>::max().
1035 * include/std/regex: Include <ext/numeric_traits.h>.
1036 * include/std/string_view: Use typedef for __int_traits<int>.
1037 * src/c++11/hashtable_c++0x.cc: Use size_t(-1) instead of
1038 std::numeric_limits<size_t>::max().
1039 * testsuite/std/ranges/iota/96042.cc: Include <limits>.
1040 * testsuite/std/ranges/iota/difference_type.cc: Likewise.
1041 * testsuite/std/ranges/subrange/96042.cc: Likewise.
1043 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
1045 * include/std/numeric: Move all #include directives to the top
1047 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line
1049 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
1051 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
1053 * config/abi/pre/gnu.ver: Add new symbol.
1054 * include/bits/functexcept.h (__throw_bad_array_new_length):
1055 Declare new function.
1056 * include/ext/malloc_allocator.h (malloc_allocator::allocate):
1057 Throw bad_array_new_length for impossible sizes (LWG 3190).
1058 * include/ext/new_allocator.h (new_allocator::allocate):
1060 * include/std/memory_resource (polymorphic_allocator::allocate)
1061 (polymorphic_allocator::allocate_object): Use new function,
1062 __throw_bad_array_new_length.
1063 * src/c++11/functexcept.cc (__throw_bad_array_new_length):
1065 * testsuite/20_util/allocator/lwg3190.cc: New test.
1067 2020-10-05 Mike Crowe <mac@mcrowe.com>
1070 * include/bits/atomic_futex.h:
1071 (__atomic_futex_unsigned::_M_load_when_equal_until): Use target
1072 clock duration type when rounding.
1073 * testsuite/30_threads/async/async.cc (test_pr91486_wait_for):
1074 Rename from test_pr91486.
1075 (float_steady_clock): New class for test.
1076 (test_pr91486_wait_until): New test.
1078 2020-10-05 Mike Crowe <mac@mcrowe.com>
1080 * testsuite/20_util/duration_cast/rounding_c++11.cc: Copy
1081 rounding.cc and alter to support compilation for C++11 and to
1082 test std::chrono::__detail::ceil.
1084 2020-10-02 Jonathan Wakely <jwakely@redhat.com>
1086 * testsuite/29_atomics/atomic_float/value_init.cc: Use float
1087 instead of double so that __atomic_load_8 isn't needed.
1089 2020-10-02 Jonathan Wakely <jwakely@redhat.com>
1091 * testsuite/18_support/96817.cc: Use terminate handler that
1094 2020-10-02 Patrick Palka <ppalka@redhat.com>
1096 * include/bits/stl_iterator.h (reverse_iterator::iter_move):
1097 Define for C++20 as per P0896.
1098 (reverse_iterator::iter_swap): Likewise.
1099 (move_iterator::operator*): Apply P0896 changes for C++20.
1100 (move_iterator::operator[]): Likewise.
1101 * testsuite/24_iterators/reverse_iterator/cust.cc: New test.
1103 2020-10-01 Jonathan Wakely <jwakely@redhat.com>
1105 * config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_TEST_AND_ACQUIRE):
1106 Do not try to dereference return value of __atomic_load_n.
1108 2020-09-30 Jonathan Wakely <jwakely@redhat.com>
1110 * config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_TEST_AND_ACQUIRE):
1111 (_GLIBCXX_GUARD_SET_AND_RELEASE): Define for EABI.
1113 2020-09-30 Jonathan Wakely <jwakely@redhat.com>
1115 * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME):
1116 Define for GCC 11 or when !__is_identifier(__is_same).
1117 (_GLIBCXX_BUILTIN_IS_SAME_AS): Remove.
1118 * include/std/type_traits (is_same, is_same_v): Replace uses
1119 of _GLIBCXX_BUILTIN_IS_SAME_AS.
1121 2020-09-28 Patrick Palka <ppalka@redhat.com>
1123 * include/std/ranges (filter_view): Declare the data member
1124 _M_base last instead of first, and adjust constructors' member
1125 initializer lists accordingly.
1126 (transform_view): Likewise.
1127 (take_view): Likewise.
1128 (take_while_view): Likewise.
1129 (drop_view): Likewise.
1130 (drop_while_view): Likewise.
1131 (join_view): Likewise.
1132 (split_view): Likewise (and tweak nearby formatting).
1133 (reverse_view): Likewise.
1134 * testsuite/std/ranges/adaptors/sizeof.cc: Update expected
1137 2020-09-28 Patrick Palka <ppalka@redhat.com>
1139 * testsuite/std/ranges/adaptors/sizeof.cc: New test.
1141 2020-09-28 Patrick Palka <ppalka@redhat.com>
1143 * include/bits/ranges_util.h (subrange::_M_end): Give it
1144 [[no_unique_address]].
1145 * testsuite/std/ranges/subrange/sizeof.cc: New test.
1147 2020-09-28 Patrick Palka <ppalka@redhat.com>
1149 * include/std/ranges (iota_view::_M_bound): Give it
1150 [[no_unique_address]].
1151 * testsuite/std/ranges/iota/iota_view.cc: Check that an
1152 unbounded iota_view has minimal size.
1154 2020-09-27 Clement Chigot <clement.chigot@atos.net>
1156 * config/os/aix/t-aix: Use $(AR) without -X32_64.
1158 2020-09-26 Jonathan Wakely <jwakely@redhat.com>
1161 * include/ext/atomicity.h (__gnu_cxx::__is_single_threaded()):
1162 New function wrapping __libc_single_threaded if available.
1163 (__exchange_and_add_dispatch, __atomic_add_dispatch): Use it.
1164 * libsupc++/guard.cc (__cxa_guard_acquire, __cxa_guard_abort)
1165 (__cxa_guard_release): Likewise.
1166 * testsuite/18_support/96817.cc: New test.
1168 2020-09-25 Jonathan Wakely <jwakely@redhat.com>
1170 * libsupc++/Makefile.am: Remove redundant -std=gnu++1z flags.
1171 * libsupc++/Makefile.in: Regenerate.
1173 2020-09-24 Antony Polukhin <antoshkka@gmail.com>
1176 * include/std/type_traits (invoke_result, is_invocable)
1177 (is_invocable_r, is_nothrow_invocable, is_nothrow_invocable_r):
1178 Add static_asserts to make sure that the arguments of the type
1179 traits are not misused with incomplete types.
1180 * testsuite/20_util/invoke_result/incomplete_args_neg.cc: New test.
1181 * testsuite/20_util/is_invocable/incomplete_args_neg.cc: New test.
1182 * testsuite/20_util/is_invocable/incomplete_neg.cc: New test.
1183 * testsuite/20_util/is_nothrow_invocable/incomplete_args_neg.cc:
1185 * testsuite/20_util/is_nothrow_invocable/incomplete_neg.cc: Check
1186 for error on incomplete type usage in trait.
1188 2020-09-24 Patrick Palka <ppalka@redhat.com>
1190 * include/std/ranges (__detail::__boxable): Split out the
1191 associated constraints of __box into here.
1192 (__detail::__box): Use the __boxable concept. Define a leaner
1193 partial specialization for semiregular types.
1194 (single_view::_M_value): Give it [[no_unique_address]].
1195 (filter_view::_M_pred): Likewise.
1196 (transform_view::_M_fun): Likewise.
1197 (take_while_view::_M_pred): Likewise.
1198 (drop_while_view::_M_pred):: Likewise.
1199 * testsuite/std/ranges/adaptors/detail/semiregular_box.cc: New
1202 2020-09-24 Jonathan Wakely <jwakely@redhat.com>
1204 * doc/xml/manual/configure.xml: Correct name of option.
1205 * doc/html/*: Regenerate.
1207 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
1210 * src/c++17/fs_path.cc (path::_Parser::root_path()): Check
1211 for empty string before inspecting the first character.
1212 * testsuite/27_io/filesystem/path/append/source.cc: Append
1213 empty string_view to path.
1215 2020-09-22 Glen Joseph Fernandes <glenjofe@gmail.com>
1217 * include/bits/align.h (align): Fix overflow handling.
1218 * testsuite/20_util/align/3.cc: New test.
1220 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
1222 * include/Makefile.am: Add new headers and adjust for renamed
1224 * include/Makefile.in: Regenerate.
1225 * include/bits/iterator_concepts.h: Adjust for renamed header.
1226 * include/bits/range_access.h (ranges::*): Move to new
1227 <bits/ranges_base.h> header.
1228 * include/bits/ranges_algobase.h: Include new <bits/ranges_base.h>
1229 header instead of <ranges>.
1230 * include/bits/ranges_algo.h: Include new <bits/ranges_util.h>
1232 * include/bits/range_cmp.h: Moved to...
1233 * include/bits/ranges_cmp.h: ...here.
1234 * include/bits/ranges_base.h: New header.
1235 * include/bits/ranges_util.h: New header.
1236 * include/experimental/string_view: Include new
1237 <bits/ranges_base.h> header.
1238 * include/std/functional: Adjust for renamed header.
1239 * include/std/ranges (ranges::view_base, ranges::enable_view)
1240 (ranges::dangling, ranges::borrowed_iterator_t): Move to new
1241 <bits/ranges_base.h> header.
1242 (ranges::view_interface, ranges::subrange)
1243 (ranges::borrowed_subrange_t): Move to new <bits/ranges_util.h>
1245 * include/std/span: Include new <bits/ranges_base.h> header.
1246 * include/std/string_view: Likewise.
1247 * testsuite/24_iterators/back_insert_iterator/pr93884.cc: Add
1248 missing <ranges> header.
1249 * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
1252 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
1256 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
1257 Use correct value category in __use_alloc call.
1258 * testsuite/20_util/tuple/cons/96803.cc: Check with constructors
1259 that require correct value category to be used.
1261 2020-09-22 Patrick Palka <ppalka@redhat.com>
1263 * include/std/span (span::front): Remove static_assert.
1264 (span::back): Likewise.
1265 (span::operator[]): Likewise.
1266 * testsuite/23_containers/span/back_neg.cc: Rewrite to verify
1267 that we check the preconditions of back() only when it's called.
1268 * testsuite/23_containers/span/front_neg.cc: Likewise for
1270 * testsuite/23_containers/span/index_op_neg.cc: Likewise for
1273 2020-09-22 Patrick Palka <ppalka@redhat.com>
1275 * include/bits/stl_algo.h (__sample): Exit early when the
1276 input range is empty.
1277 * testsuite/25_algorithms/sample/3.cc: New test.
1279 2020-09-22 Patrick Palka <ppalka@redhat.com>
1281 * include/bits/stl_algo.h (for_each_n): Mark constexpr for C++20.
1282 (search): Likewise for the overload that takes a searcher.
1283 * testsuite/25_algorithms/for_each/constexpr.cc: Test constexpr
1285 * testsuite/25_algorithms/search/constexpr.cc: Test constexpr
1286 std::search overload that takes a searcher.
1288 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1290 * include/bits/c++config (__replacement_assert): Add noreturn
1292 (__glibcxx_assert_impl): Use __builtin_expect to hint that the
1293 assertion is expected to pass.
1295 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1297 * include/std/ranges (drop_view::begin()): Adjust constraints
1298 to match the correct condition for O(1) ranges::next (LWG 3482).
1299 * testsuite/std/ranges/adaptors/drop.cc: Check that iterator is
1300 cached for non-sized_range.
1302 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1304 * include/std/ranges (transform_view, elements_view): Relax
1305 constraints on operator- for iterators, as per LWG 3483.
1306 * testsuite/std/ranges/adaptors/elements.cc: Check that we
1307 can take the difference of two iterators from a non-random
1309 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1311 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1314 * include/bits/align.h (align) [!_GLIBCXX_USE_C99_STDINT_TR1]:
1316 (assume_aligned): Do not use __builtin_assume_aligned during
1317 constant evaluation.
1318 * testsuite/20_util/assume_aligned/1.cc: Improve test.
1319 * testsuite/20_util/assume_aligned/97132.cc: New test.
1321 2020-09-20 Jonathan Wakely <jwakely@redhat.com>
1324 * include/std/functional (bind_front): Fix order of parameters
1325 in is_nothrow_constructible_v specialization.
1326 * testsuite/20_util/function_objects/bind_front/97101.cc: New test.
1328 2020-09-11 Thomas Rodgers <trodgers@redhat.com>
1330 * include/std/memory: Move #include <bits/align.h> inside C++11
1331 conditional includes.
1333 2020-09-11 Thomas Rodgers <trodgers@redhat.com>
1335 * include/Makefile.am (bits_headers): Add new header.
1336 * include/Makefile.in: Regenerate.
1337 * include/bits/align.h: New file.
1338 * include/std/memory (align): Move definition to bits/align.h.
1339 (assume_aligned): Likewise.
1341 2020-09-11 Jonathan Wakely <jwakely@redhat.com>
1343 * include/std/chrono [C++17] (chrono::__detail::ceil): Add
1344 using declaration to make chrono::ceil available for internal
1345 use with a consistent name.
1346 (chrono::__detail::__ceil_impl): New function template.
1347 (chrono::__detail::ceil): Use __ceil_impl to compare and
1348 increment the value. Remove SFINAE constraint.
1350 2020-09-11 Jonathan Wakely <jwakely@redhat.com>
1352 * include/bits/regex_error.h (__throw_regex_error): Fix
1353 parameter declaration and use reserved attribute names.
1355 2020-09-11 Mike Crowe <mac@mcrowe.com>
1357 * include/std/condition_variable (condition_variable::wait_until):
1358 Convert delta to steady_clock duration before adding to current
1359 steady_clock time to avoid rounding errors described in PR68519.
1360 (condition_variable::wait_for): Simplify calculation of absolute
1361 time by using chrono::__detail::ceil in both overloads.
1362 * testsuite/30_threads/condition_variable/members/68519.cc:
1363 (test_wait_for): Renamed from test01. Replace unassigned val
1364 variable with constant false. Reduce scope of mx and cv
1365 variables to just test_wait_for function.
1366 (test_wait_until): Add new test case.
1368 2020-09-11 Mike Crowe <mac@mcrowe.com>
1371 * include/bits/atomic_futex.h
1372 (__atomic_futex_unsigned::_M_load_when_equal_for)
1373 (__atomic_futex_unsigned::_M_load_when_equal_until): Use
1374 __detail::ceil to convert delta to the reference clock
1375 duration type to avoid resolution problems.
1376 * include/std/chrono (__detail::ceil): Move implementation
1377 of std::chrono::ceil into private namespace so that it's
1378 available to pre-C++17 code.
1379 * testsuite/30_threads/async/async.cc (test_pr91486):
1380 Test __atomic_futex_unsigned::_M_load_when_equal_for.
1382 2020-09-11 Mike Crowe <mac@mcrowe.com>
1384 * include/bits/atomic_futex.h
1385 (__atomic_futex_unsigned::_M_load_when_equal_until): Add
1386 loop on generic _Clock to check the timeout against _Clock
1387 again after _M_load_when_equal_until returns indicating a
1389 * testsuite/30_threads/async/async.cc: Invent slow_clock
1390 that runs at an eleventh of steady_clock's speed. Use it
1391 to test the user-supplied-clock variant of
1392 __atomic_futex_unsigned::_M_load_when_equal_until works
1393 generally with test03 and loops correctly when the timeout
1394 time hasn't been reached in test04.
1396 2020-09-11 Mike Crowe <mac@mcrowe.com>
1399 * include/bits/atomic_futex.h (__atomic_futex_unsigned): Change
1400 __clock_t typedef to use steady_clock so that unknown clocks are
1401 synced to it rather than system_clock. Change existing __clock_t
1402 overloads of _M_load_and_text_until_impl and
1403 _M_load_when_equal_until to use system_clock explicitly. Remove
1404 comment about DR 887 since these changes address that problem as
1405 best as we currently able.
1407 2020-09-11 Mike Crowe <mac@mcrowe.com>
1410 * config/abi/pre/gnu.ver: Update for addition of
1411 __atomic_futex_unsigned_base::_M_futex_wait_until_steady.
1412 * include/bits/atomic_futex.h (__atomic_futex_unsigned_base):
1413 Add comments to clarify that _M_futex_wait_until and
1414 _M_load_and_test_until use CLOCK_REALTIME.
1415 (__atomic_futex_unsigned_base::_M_futex_wait_until_steady)
1416 (__atomic_futex_unsigned_base::_M_load_and_text_until_steady):
1417 New member functions that use CLOCK_MONOTONIC.
1418 (__atomic_futex_unsigned_base::_M_load_and_test_until_impl)
1419 (__atomic_futex_unsigned_base::_M_load_when_equal_until): Add
1420 overloads that accept a steady_clock time_point and use the
1421 new member functions.
1422 * src/c++11/futex.cc: Include headers required for
1424 (futex_clock_monotonic_flag): New constant to tell futex to
1425 use CLOCK_MONOTONIC to match existing futex_clock_realtime_flag.
1426 (futex_clock_monotonic_unavailable): New global to store the
1427 result of trying to use CLOCK_MONOTONIC.
1428 (__atomic_futex_unsigned_base::_M_futex_wait_until_steady): Add
1429 new variant of _M_futex_wait_until that uses CLOCK_MONOTONIC to
1430 support waiting using steady_clock.
1432 2020-09-11 Mike Crowe <mac@mcrowe.com>
1434 * src/c++11/futex.cc: Add new constants for required futex
1435 flags. Add futex_clock_realtime_unavailable flag to store
1436 result of trying to use FUTEX_CLOCK_REALTIME.
1437 (__atomic_futex_unsigned_base::_M_futex_wait_until): Try to
1438 use FUTEX_WAIT_BITSET with FUTEX_CLOCK_REALTIME and only
1439 fall back to using gettimeofday and FUTEX_WAIT if that's not
1442 2020-09-11 Mike Crowe <mac@mcrowe.com>
1444 * testsuite/30_threads/async/async.cc (test02): Test steady_clock
1445 with std::future::wait_until.
1446 (test03): Add new test templated on clock type waiting for future
1447 associated with async to resolve.
1448 (main): Call test03 to test both system_clock and steady_clock.
1450 2020-09-11 Torbjörn SVENSSON <torbjorn.svensson@st.com>
1451 Christophe Lyon <christophe.lyon@linaro.org>
1453 * libsupc++/eh_call.cc: Avoid warning with -fno-exceptions.
1455 2020-09-11 Torbjörn SVENSSON <torbjorn.svensson@st.com>
1456 Christophe Lyon <christophe.lyon@linaro.org>
1458 * libsupc++/eh_call.cc: Avoid warning with -fno-exceptions.
1460 2020-09-11 Christophe Lyon <christophe.lyon@linaro.org>
1462 * include/bits/regex_error.h: Avoid warning with -fno-exceptions.
1464 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1466 * include/bits/locale_conv.h (__do_str_codecvt, __str_codecvt_in_all):
1467 Add casts to compare types of the same signedness.
1469 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1471 * include/bits/ranges_algobase.h (__equal_fn): Remove unused
1474 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1476 * include/std/version (__cpp_lib_array_constexpr):
1477 (__cpp_lib_constexpr_char_traits): Only define C++17 value when
1480 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1482 * include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&))
1483 (operator=(auto_ptr&&)): Add diagnostic pragmas to suppress
1484 warnings for uses of std::auto_ptr.
1485 * include/experimental/type_traits (is_literal_type_v):
1486 Likewise, for use of std::is_literal_type.
1487 * include/std/condition_variable (condition_variable_any::_Unlock):
1488 Likewise, for use of std::uncaught_exception.
1490 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1492 * include/bits/fs_path.h (path::_List::type()): Avoid narrowing
1494 * include/std/chrono (operator+(const year&, const years&)):
1497 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1499 * include/bits/codecvt.h (codecvt_byname): Remove names of
1502 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1504 * include/bits/locale_facets_nonio.tcc: Adjust whitespace.
1506 2020-09-10 Krystian Kuźniarek <krystian.kuzniarek@gmail.com>
1508 * include/c_global/cmath (__lerp): Avoid -Wparentheses warnings.
1510 2020-09-10 Krystian Kuźniarek <krystian.kuzniarek@gmail.com>
1512 * include/bits/atomic_base.h: Fix -Wunused-variable
1514 * include/ext/new_allocator.h: Fix -Wunused-parameter
1517 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1519 * include/bits/stl_iterator.h (counted_iterator): Add assertions
1520 to check preconditions added by LWG 3472.
1522 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1525 * src/c++17/memory_resource.cc (munge_options): Round
1526 max_blocks_per_chunk to a multiple of four.
1527 (__pool_resource::_M_alloc_pools()): Simplify slightly.
1528 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
1529 Check that valid pointers are returned when small values are
1530 used for max_blocks_per_chunk.
1532 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1535 * include/std/memory_resource (monotonic_buffer_resource::do_allocate):
1536 Use __builtin_expect when checking if a new buffer needs to be
1537 allocated from the upstream resource, and for checks for edge
1538 cases like zero sized buffers and allocations.
1539 * src/c++17/memory_resource.cc (aligned_size): New class template.
1540 (aligned_ceil): New helper function to round up to a given
1542 (monotonic_buffer_resource::chunk): Replace _M_size and _M_align
1543 with an aligned_size member. Remove _M_canary member. Change _M_next
1544 to pointer instead of unaligned buffer.
1545 (monotonic_buffer_resource::chunk::allocate): Round up to multiple
1546 of 64 instead of to power of two. Check for size overflow. Remove
1547 redundant check for minimum required alignment.
1548 (monotonic_buffer_resource::chunk::release): Adjust for changes
1550 (monotonic_buffer_resource::_M_new_buffer): Use aligned_ceil.
1551 (big_block): Replace _M_size and _M_align with aligned_size
1553 (big_block::big_block): Check for size overflow.
1554 (big_block::size, big_block::align): Adjust to use aligned_size.
1555 (big_block::alloc_size): Use aligned_ceil.
1556 (munge_options): Use aligned_ceil.
1557 (__pool_resource::allocate): Use big_block::align for alignment.
1558 * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Check
1559 upstream resource gets expected values for impossible sizes.
1560 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
1561 Likewise. Adjust checks for expected alignment in existing test.
1563 2020-09-07 Jonathan Wakely <jwakely@redhat.com>
1565 * include/std/chrono (duration::_S_gcd): Use invariant that
1566 neither value is zero initially.
1568 2020-09-07 Jonathan Wakely <jwakely@redhat.com>
1570 * include/std/ranges (__box): Simplify constraints as per LWG 3477.
1572 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
1575 * include/std/tuple (_TupleConstraints<true, T...>): Use
1576 alternative is_constructible instead of std::is_constructible.
1577 * testsuite/20_util/tuple/cons/96592.cc: New test.
1579 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
1581 * include/std/chrono (duration::_S_gcd): Use iterative algorithm
1582 for C++14 and later.
1583 * include/std/numeric (__detail::__gcd): Replace recursive
1584 Euclidean algorithm with iterative version of binary GCD algorithm.
1585 * testsuite/26_numerics/gcd/1.cc: Test additional inputs.
1586 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error lines.
1587 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
1588 * testsuite/experimental/numeric/gcd.cc: Test additional inputs.
1589 * testsuite/26_numerics/gcd/2.cc: New test.
1591 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
1594 * testsuite/experimental/numeric/92978.cc: Use experimental::lcm
1597 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
1600 * include/bits/cpp_type_traits.h (__is_memcmp_ordered):
1601 New trait that says if memcmp can be used for ordering.
1602 (__is_memcmp_ordered_with): Likewise, for two types.
1603 * include/bits/deque.tcc (__lex_cmp_dit): Use new traits
1604 instead of __is_byte and __numeric_traits.
1605 (__lexicographical_compare_aux1): Likewise.
1606 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
1608 * include/bits/stl_algobase.h (__lexicographical_compare_aux1)
1609 (__is_byte_iter): Likewise.
1610 * include/std/array (operator<=>): Likewise. Only use memcmp
1611 when std::is_constant_evaluated() is false.
1612 * testsuite/23_containers/array/comparison_operators/96851.cc:
1614 * testsuite/23_containers/array/tuple_interface/get_neg.cc:
1615 Adjust dg-error line numbers.
1617 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
1619 * include/bits/stl_iterator.h: Include <bits/exception_defines.h>
1620 for definitions of __try, __catch and __throw_exception_again.
1621 (counted_iterator::operator++(int)): Use __throw_exception_again
1623 * libsupc++/new: Include <bits/exception.h> not <exception>.
1624 * libsupc++/new_opvnt.cc: Include <bits/exception_defines.h>.
1625 * testsuite/18_support/destroying_delete.cc: Include
1626 <type_traits> for std::is_same_v definition.
1627 * testsuite/20_util/variant/index_type.cc: Qualify size_t.
1629 2020-09-01 Jonathan Wakely <jwakely@redhat.com>
1632 * include/bits/c++config (__glibcxx_assert_impl): Remove
1633 do-while so that uses of the macro need to add it.
1634 (__glibcxx_assert): Rename macro for runtime assertions
1635 to __glibcxx_assert_2.
1636 (__glibcxx_assert_1): Define macro for constexpr assertions.
1637 (__glibcxx_assert): Define macro for constexpr and runtime
1639 * include/bits/range_access.h (ranges::advance): Remove
1640 redundant precondition checks during constant evaluation.
1641 * include/parallel/base.h (_GLIBCXX_PARALLEL_ASSERT): Always
1642 use do-while in macro expansion.
1643 * include/std/ranges (iota_view::iota_view(W, B)): Remove
1646 2020-09-01 Jonathan Wakely <jwakely@redhat.com>
1648 * include/std/chrono (duration::_S_gcd(intmax_t, intmax_t)):
1649 New helper function for finding GCD of two positive intmax_t
1651 (duration::__divide): New helper alias for dividing one period
1653 (duration::__is_harmonic): Use __divide not ratio_divide.
1654 (duration(const duration<R2, P2>&)): Require the duration rep
1655 types to be convertible.
1656 * testsuite/20_util/duration/cons/dr2094.cc: New test.
1657 * testsuite/20_util/duration/requirements/reduced_period.cc:
1658 Fix definition of unused member functions in test type.
1659 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
1660 Adjust expected errors.
1662 2020-08-29 Jonathan Wakely <jwakely@redhat.com>
1664 * include/std/numeric (__detail::__absu(bool)): Make deleted
1665 function a function template, so it will be chosen for calls
1666 with an explicit template argument list.
1667 * testsuite/26_numerics/gcd/gcd_neg.cc: Add dg-prune-output.
1668 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
1670 2020-08-28 Jonathan Wakely <jwakely@redhat.com>
1672 * include/std/chrono (common_type): Fix partial specializations
1673 for a single duration type to use the common_type of the rep.
1674 (duration::operator+, duration::operator-): Fix return types
1675 to also use the common_type of the rep.
1676 * testsuite/20_util/duration/requirements/reduced_period.cc:
1677 Check duration using a rep that has common_type specialized.
1679 2020-08-28 Jonathan Wakely <jwakely@redhat.com>
1682 * include/std/numeric (__abs_integral): Replace with ...
1683 (__detail::__absu): New function template that returns an
1684 unsigned type, guaranteeing it can represent the most
1685 negative signed value.
1686 (__detail::__gcd, __detail::__lcm): Require arguments to
1687 be unsigned and therefore already non-negative.
1688 (gcd, lcm): Convert arguments to absolute value as unsigned
1689 type before calling __detail::__gcd or __detail::__lcm.
1690 * include/experimental/numeric (gcd, lcm): Likewise.
1691 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected
1693 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
1694 * testsuite/26_numerics/gcd/92978.cc: New test.
1695 * testsuite/26_numerics/lcm/92978.cc: New test.
1696 * testsuite/experimental/numeric/92978.cc: New test.
1698 2020-08-27 Jonathan Wakely <jwakely@redhat.com>
1700 * include/std/chrono (__duration_common_type): Ensure the
1701 reduced ratio is used. Remove unused partial specialization
1702 using __failure_type.
1703 (common_type): Pass reduced ratios to __duration_common_type.
1704 Add partial specializations for simple cases involving a single
1705 duration or time_point type.
1706 (duration::period): Use reduced ratio.
1707 (duration::operator+(), duration::operator-()): Return duration
1708 type using the reduced ratio.
1709 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
1710 Adjust expected errors.
1711 * testsuite/20_util/duration/requirements/reduced_period.cc: New test.
1713 2020-08-27 Patrick Palka <ppalka@redhat.com>
1715 * include/std/chrono (year_month::operator+): Properly handle a
1716 month value of 0 by casting the month value to int before
1717 subtracting 1 from it so that the difference is sign-extended in
1718 the subsequent addition.
1719 * testsuite/std/time/year_month/1.cc: Test adding months to a
1720 year_month whose month component is below or above the
1721 normalized range of [1,12].
1723 2020-08-27 Patrick Palka <ppalka@redhat.com>
1725 * include/std/chrono
1726 (__detail::__months_years_conversion_disambiguator): Define.
1727 (year_month::operator+=): Templatize the 'months'-based overload
1728 so that the 'years'-based overload is selected in case of
1729 equally-ranked implicit conversion sequences to both 'months'
1730 and 'years' from the supplied argument.
1731 (year_month::operator-=): Likewise.
1732 (year_month::operator+): Likewise.
1733 (year_month::operator-): Likewise.
1734 (year_month_day::operator+=): Likewise.
1735 (year_month_day::operator-=): Likewise.
1736 (year_month_day::operator+): Likewise.
1737 (year_month_day::operator-): Likewise.
1738 (year_month_day_last::operator+=): Likewise.
1739 (year_month_day_last::operator-=): Likewise.
1740 (year_month_day_last::operator+): Likewise
1741 (year_month_day_last::operator-): Likewise.
1742 (year_month_day_weekday::operator+=): Likewise
1743 (year_month_day_weekday::operator-=): Likewise.
1744 (year_month_day_weekday::operator+): Likewise.
1745 (year_month_day_weekday::operator-): Likewise.
1746 (year_month_day_weekday_last::operator+=): Likewise
1747 (year_month_day_weekday_last::operator-=): Likewise.
1748 (year_month_day_weekday_last::operator+): Likewise.
1749 (year_month_day_weekday_last::operator-): Likewise.
1750 (testsuite/std/time/year_month/2.cc): New test.
1751 (testsuite/std/time/year_month_day/2.cc): New test.
1752 (testsuite/std/time/year_month_day_last/2.cc): New test.
1753 (testsuite/std/time/year_month_weekday/2.cc): New test.
1754 (testsuite/std/time/year_month_weekday_last/2.cc): New test.
1755 * testsuite/std/time/year_month/2.cc: New file.
1756 * testsuite/std/time/year_month_day/2.cc: New file.
1757 * testsuite/std/time/year_month_day_last/2.cc: New file.
1758 * testsuite/std/time/year_month_weekday/2.cc: New file.
1759 * testsuite/std/time/year_month_weekday_last/2.cc: New file.
1761 2020-08-27 Patrick Palka <ppalka@redhat.com>
1764 * include/std/ranges (transform_view::sentinel::__distance_from):
1765 Give this a deduced return type.
1766 (transform_view::sentinel::operator-): Adjust the return type so
1767 that it's based on the constness of the iterator rather than
1768 that of the sentinel.
1769 * testsuite/std/ranges/adaptors/95322.cc: Refer to LWG 3488.
1771 2020-08-27 Patrick Palka <ppalka@redhat.com>
1773 * include/std/ranges (elements_view::begin): Adjust constraints.
1774 (elements_view::end): Likewise.
1775 (elements_view::_Sentinel::operator==): Templatize to take both
1776 _Iterator<true> and _Iterator<false>.
1777 (elements_view::_Sentinel::operator-): Likewise.
1778 * testsuite/std/ranges/adaptors/elements.cc: Add testcase for
1779 the example from P1994R1.
1780 * testsuite/std/ranges/adaptors/lwg3406.cc: New test.
1782 2020-08-27 Patrick Palka <ppalka@redhat.com>
1784 * include/std/ranges (elements_view::end): Replace these two
1785 overloads with four new overloads.
1786 (elements_view::_Iterator::operator==): Remove.
1787 (elements_view::_Iterator::operator-): Likewise.
1788 (elements_view::_Sentinel): Define.
1790 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
1792 * include/std/tuple (_Tuple_impl): Whitespaces changes for
1793 consistent indentation. Also use __enable_if_t alias template.
1795 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
1799 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
1800 Replace parameter pack with a type parameter and a pack and pass
1801 the first type to __use_alloc.
1802 * testsuite/20_util/tuple/cons/96803.cc: New test.
1804 2020-08-26 Patrick Palka <ppalka@redhat.com>
1806 * include/std/chrono (year_month_weekday::operator==): Compare
1807 weekday_indexed instead of weekday.
1808 * testsuite/std/time/year_month_weekday/1.cc: Augment testcase.
1810 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
1812 * include/bits/hashtable_policy.h (_Hash_code_base): Change
1813 index of _Hashtable_ebo_helper base class.
1814 * testsuite/23_containers/unordered_map/dup_types.cc: New test.
1816 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
1819 * include/experimental/string_view (basic_string_view):
1820 Enable debug assertions.
1821 * include/std/string_view (basic_string_view):
1824 2020-08-26 François Dumont <fdumont@gcc.gnu.org>
1826 * include/bits/hashtable_policy.h (_Hashtable<>): Rename _H1 into _Hash
1827 _H2 into _RangeHash and _Hash into _Unused.
1828 (_Hastable_base<>): Likewise.
1829 (_Map_base<>): Likewise.
1830 (_Insert_base<>): Likewise.
1831 (_Insert<>): Likewise.
1832 (_Rehash_base<>): Likewise.
1833 (_Local_iterator_base<>): Likewise.
1834 (_Hash_code_base<>): Likewise.
1835 (_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, false>):
1837 (_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, true>):
1839 (_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHas, _Unused,
1840 bool>): Remove _Hashtable_ebo_helper<2, _RangeHash> base type..
1841 (_Hash_code_base<>::_M_bucket_index(const _Key&, __hash_code, size_t)):
1843 (_Hash_code_base<>::_M_bucket_index(__hash_code, size_t)): ...this.
1844 (_Local_iterator<>): Remove _H1 and _H2 template parameters.
1845 (_Local_const_iterator<>): Likewise.
1846 (_Equality<>): Likewise.
1847 (_Map_base<>::operator[](const key_type&): Adapt.
1848 (_Map_base<>::operator[](key_type&&): Adapt.
1849 (_Identity::operator()): Add noexcept.
1850 (_Select1st::operator()): Likewise.
1851 (_Hash_code_base<>): Remove _Hashtable_ebo_helper<0, _ExtractKey> base
1853 (_Hash_code_base::_M_extract): Remove.
1854 * include/bits/hashtable.h (_Hashtable<>): Remove _H1 and _H2 template
1855 parameters. Remove _ExtractKey from constructors.
1856 (_Hashtable<>::_M_insert_unique_node(const key_type&, size_t,
1857 __hash_code, __node_type*, size_t)): Replace by...
1858 (_Hashtable<>::_M_insert_unique_node(size_t, __hash_code,
1859 __node_type*, size_t)): ...this.
1860 (_Hashtable<>::_M_insert_muti_node(__node_type*, const key_type&,
1861 __hash_code, __node_type*)): Replace by...
1862 (_Hashtable<>::_M_insert_multi_node(__node_type*, __hash_code,
1863 __node_type*)): ...this.
1864 (_Hashtable<>::__key_extract): Remove.
1865 * include/bits/node_handle.h: Adapt.
1867 2020-08-25 Jonathan Wakely <jwakely@redhat.com>
1869 * testsuite/21_strings/debug/iterator_self_move_assign_neg.cc: Removed.
1870 * testsuite/21_strings/debug/self_move_assign_neg.cc: Removed.
1871 * testsuite/23_containers/deque/debug/iterator_self_move_assign_neg.cc: Removed.
1872 * testsuite/23_containers/deque/debug/self_move_assign_neg.cc: Removed.
1873 * testsuite/23_containers/forward_list/debug/iterator_self_move_assign_neg.cc: Removed.
1874 * testsuite/23_containers/forward_list/debug/self_move_assign_neg.cc: Removed.
1875 * testsuite/23_containers/list/debug/iterator_self_move_assign_neg.cc: Removed.
1876 * testsuite/23_containers/list/debug/self_move_assign_neg.cc: Removed.
1877 * testsuite/23_containers/map/debug/iterator_self_move_assign_neg.cc: Removed.
1878 * testsuite/23_containers/map/debug/self_move_assign_neg.cc: Removed.
1879 * testsuite/23_containers/multimap/debug/iterator_self_move_assign_neg.cc: Removed.
1880 * testsuite/23_containers/multimap/debug/self_move_assign_neg.cc: Removed.
1881 * testsuite/23_containers/multiset/debug/iterator_self_move_assign_neg.cc: Removed.
1882 * testsuite/23_containers/multiset/debug/self_move_assign_neg.cc: Removed.
1883 * testsuite/23_containers/set/debug/iterator_self_move_assign_neg.cc: Removed.
1884 * testsuite/23_containers/set/debug/self_move_assign_neg.cc: Removed.
1885 * testsuite/23_containers/unordered_map/debug/iterator_self_move_assign_neg.cc: Removed.
1886 * testsuite/23_containers/unordered_map/debug/self_move_assign_neg.cc: Removed.
1887 * testsuite/23_containers/unordered_multimap/debug/iterator_self_move_assign_neg.cc:
1889 * testsuite/23_containers/unordered_multimap/debug/self_move_assign_neg.cc: Removed.
1890 * testsuite/23_containers/unordered_multiset/debug/iterator_self_move_assign_neg.cc:
1892 * testsuite/23_containers/unordered_multiset/debug/self_move_assign_neg.cc: Removed.
1893 * testsuite/23_containers/unordered_set/debug/iterator_self_move_assign_neg.cc: Removed.
1894 * testsuite/23_containers/unordered_set/debug/self_move_assign_neg.cc: Removed.
1895 * testsuite/23_containers/vector/debug/iterator_self_move_assign_neg.cc: Removed.
1896 * testsuite/23_containers/vector/debug/self_move_assign_neg.cc: Removed.
1898 2020-08-25 Patrick Palka <ppalka@redhat.com>
1900 * include/std/chrono (year_month_weekday::ok): Fix assert.
1902 2020-08-25 Jonathan Wakely <jwakely@redhat.com>
1904 * include/std/future (future, shared_future. promise): Add
1905 is_destructible assertion (LWG 3466). Adjust string-literal for
1906 !is_array and !is_function assertions.
1907 * testsuite/30_threads/future/requirements/lwg3458.cc: Check
1908 types with no accessible destructor. Adjust expected errors.
1909 * testsuite/30_threads/promise/requirements/lwg3466.cc:
1911 * testsuite/30_threads/shared_future/requirements/lwg3458.cc:
1914 2020-08-25 Patrick Palka <ppalka@redhat.com>
1915 Ed Smith-Rowland <3dw4rd@verizon.net>
1916 Jonathan Wakely <jwakely@redhat.com>
1918 * include/std/chrono (time_point::operator++)
1919 (time_point::operator--): Define.
1920 (utc_clock, tai_clock, gps_clock): Forward declare.
1921 (utc_time, utc_seconds, tai_time, tai_seconds, gps_time)
1922 (gps_seconds): Define.
1923 (is_clock<utc_clock>, is_clock<tai_clock>, is_clock<gps_clock>)
1924 (is_clock_v<utc_clock>, is_clock_v<tai_clock>)
1925 (is_clock_v<gps_clock>): Define these specializations.
1926 (leap_second_info): Define.
1927 (day, month, year, weekday, weekday_indexed)
1928 (weekday_last, month_day, month_day_last, month_weekday)
1929 (month_weekday_last, year_month, year_month_day)
1930 (year_month_day_last, year_month_weekday, year_month_weekday_last):
1931 Declare and later define.
1932 (last_spec, last, __detail::__days_per_month)
1933 (__detail::__days_per_month, __detail::__last_day): Define.
1934 (January, February, March, April, May, June, July, August)
1935 (September, October, November, December, Sunday, Monday, Tuesday)
1936 (Wednesday, Thursday, Friday, Saturday): Define.
1937 (weekday::operator[]): Define out-of-line.
1938 (year_month_day::_S_from_days, year_month_day::M_days_since_epoch):
1940 (year_month_day::year_month_day, year_month_day::ok): Likewise.
1941 (__detail::__pow10, hh_mm_ss): Define.
1942 (literals::chrono_literals::operator""d)
1943 (literals::chrono_literals::operator""y): Define.
1944 (is_am, is_pm, make12, make24): Define.
1945 * testsuite/20_util/time_point/4.cc: New test.
1946 * testsuite/std/time/day/1.cc: New test.
1947 * testsuite/std/time/hh_mm_ss/1.cc: New test.
1948 * testsuite/std/time/is_am/1.cc: New test.
1949 * testsuite/std/time/is_pm/1.cc: New test.
1950 * testsuite/std/time/make12/1.cc: New test.
1951 * testsuite/std/time/make24/1.cc: New test.
1952 * testsuite/std/time/month/1.cc: New test.
1953 * testsuite/std/time/month_day/1.cc: New test.
1954 * testsuite/std/time/month_day_last/1.cc: New test.
1955 * testsuite/std/time/month_weekday/1.cc: New test.
1956 * testsuite/std/time/month_weekday_last/1.cc: New test.
1957 * testsuite/std/time/weekday/1.cc: New test.
1958 * testsuite/std/time/weekday_indexed/1.cc: New test.
1959 * testsuite/std/time/weekday_last/1.cc: New test.
1960 * testsuite/std/time/year/1.cc: New test.
1961 * testsuite/std/time/year_month/1.cc: New test.
1962 * testsuite/std/time/year_month_day/1.cc: New test.
1963 * testsuite/std/time/year_month_day_last/1.cc: New test.
1964 * testsuite/std/time/year_month_weekday/1.cc: New test.
1965 * testsuite/std/time/year_month_weekday_last/1.cc: New test.
1967 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1969 * include/std/ranges (join_view): Add deduction guide (LWG 3474).
1970 * testsuite/std/ranges/adaptors/join_lwg3474.cc: New test.
1972 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1974 * include/bits/iterator_concepts.h (indirectly_readable): Add
1975 partial specializations to resolve ambiguities (LWG 3446).
1976 * testsuite/24_iterators/associated_types/readable.traits.cc:
1977 Check types with both value_type and element_type.
1979 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1981 * include/std/ranges (ranges::iota_view::size()): Perform all
1982 calculations in the right unsigned types.
1983 * testsuite/std/ranges/iota/size.cc: New test.
1985 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1988 * include/std/variant (_Variant_storage): Replace implicit
1989 conversions from size_t to __index_type with explicit casts.
1991 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1993 * testsuite/30_threads/packaged_task/cons/alloc.cc: Run for
1994 C++11 and skip for C++17 or later.
1996 2020-08-24 Corentin Gay <gay@adacore.com>
1998 * testsuite/20_util/shared_ptr/atomic/3.cc: Do not require POSIX
1999 threads and add -pthread only on targets supporting them.
2000 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
2002 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
2004 * testsuite/30_threads/async/42819.cc: Likewise.
2005 * testsuite/30_threads/async/49668.cc: Likewise.
2006 * testsuite/30_threads/async/54297.cc: Likewise.
2007 * testsuite/30_threads/async/any.cc: Likewise.
2008 * testsuite/30_threads/async/async.cc: Likewise.
2009 * testsuite/30_threads/async/except.cc: Likewise.
2010 * testsuite/30_threads/async/launch.cc: Likewise.
2011 * testsuite/30_threads/async/lwg2021.cc: Likewise.
2012 * testsuite/30_threads/async/sync.cc: Likewise. : Likewise.
2013 * testsuite/30_threads/call_once/39909.cc: Likewise.
2014 * testsuite/30_threads/call_once/49668.cc: Likewise.
2015 * testsuite/30_threads/call_once/60497.cc: Likewise.
2016 * testsuite/30_threads/call_once/call_once1.cc: Likewise.
2017 * testsuite/30_threads/call_once/dr2442.cc: Likewise.
2018 * testsuite/30_threads/condition_variable/54185.cc: Likewise.
2019 * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
2020 * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
2021 * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
2022 * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
2023 * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
2024 * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
2025 * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
2027 * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
2028 * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
2029 * testsuite/30_threads/condition_variable_any/cond.cc: Likewise.
2030 * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
2031 * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
2032 * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
2033 * testsuite/30_threads/future/cons/move.cc: Likewise.
2034 * testsuite/30_threads/future/members/45133.cc: Likewise.
2035 * testsuite/30_threads/future/members/get.cc: Likewise.
2036 * testsuite/30_threads/future/members/get2.cc: Likewise.
2037 * testsuite/30_threads/future/members/share.cc: Likewise.
2038 * testsuite/30_threads/future/members/valid.cc: Likewise.
2039 * testsuite/30_threads/future/members/wait.cc: Likewise.
2040 * testsuite/30_threads/future/members/wait_for.cc: Likewise.
2041 * testsuite/30_threads/future/members/wait_until.cc: Likewise.
2042 * testsuite/30_threads/lock/1.cc: Likewise.
2043 * testsuite/30_threads/lock/2.cc: Likewise.
2044 * testsuite/30_threads/lock/3.cc: Likewise.
2045 * testsuite/30_threads/lock/4.cc: Likewise.
2046 * testsuite/30_threads/mutex/cons/1.cc: Likewise.
2047 * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
2048 * testsuite/30_threads/mutex/lock/1.cc: Likewise.
2049 * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
2050 * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
2051 * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
2052 * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
2053 * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
2054 * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
2055 * testsuite/30_threads/packaged_task/49668.cc: Likewise.
2056 * testsuite/30_threads/packaged_task/60564.cc: Likewise.
2057 * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
2058 * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
2059 * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
2060 * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
2061 * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
2062 * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
2063 * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
2064 * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
2066 * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
2067 * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
2068 * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
2069 * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
2070 * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
2071 * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
2072 * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
2073 * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
2074 * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
2075 * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
2076 * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
2077 * testsuite/30_threads/promise/60966.cc: Likewise.
2078 * testsuite/30_threads/promise/cons/1.cc: Likewise.
2079 * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
2080 * testsuite/30_threads/promise/cons/move.cc: Likewise.
2081 * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
2082 * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
2083 * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
2084 * testsuite/30_threads/promise/members/get_future.cc: Likewise.
2085 * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
2086 * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
2087 * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
2088 * testsuite/30_threads/promise/members/set_value.cc: Likewise.
2089 * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
2090 * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
2091 * testsuite/30_threads/promise/members/swap.cc: Likewise.
2092 * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
2093 * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
2095 * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
2096 * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
2097 * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
2099 * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
2100 * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
2101 * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
2102 * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
2103 * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
2104 * testsuite/30_threads/recursive_timed_mutex/dest/destructor_locked.cc:
2106 * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
2107 * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
2108 * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
2110 * testsuite/30_threads/recursive_timed_mutex/native_handle/typesizes.cc:
2112 * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc: Likewise.
2113 * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc: Likewise.
2114 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
2116 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
2118 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
2120 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
2122 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
2124 * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
2125 * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
2126 * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
2127 * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
2128 * testsuite/30_threads/shared_future/members/get.cc: Likewise.
2129 * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
2130 * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
2131 * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
2132 * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
2133 * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
2134 * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
2135 * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
2136 * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
2137 * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
2138 * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
2139 * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
2140 * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
2141 * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
2142 * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
2143 * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
2144 * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
2145 * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
2146 * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
2147 * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
2148 * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
2149 * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
2150 * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
2151 * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
2152 * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
2153 * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
2154 * testsuite/30_threads/this_thread/1.cc: Likewise.
2155 * testsuite/30_threads/this_thread/sleep_for-mt.cc: Likewise.
2156 * testsuite/30_threads/this_thread/sleep_until-mt.cc: Likewise.
2157 * testsuite/30_threads/thread/cons/1.cc: Likewise.
2158 * testsuite/30_threads/thread/cons/2.cc: Likewise.
2159 * testsuite/30_threads/thread/cons/3.cc: Likewise.
2160 * testsuite/30_threads/thread/cons/4.cc: Likewise.
2161 * testsuite/30_threads/thread/cons/49668.cc: Likewise.
2162 * testsuite/30_threads/thread/cons/5.cc: Likewise.
2163 * testsuite/30_threads/thread/cons/6.cc: Likewise.
2164 * testsuite/30_threads/thread/cons/7.cc: Likewise.
2165 * testsuite/30_threads/thread/cons/8.cc: Likewise.
2166 * testsuite/30_threads/thread/cons/9.cc: Likewise.
2167 * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
2168 * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
2169 * testsuite/30_threads/thread/members/1.cc: Likewise.
2170 * testsuite/30_threads/thread/members/2.cc: Likewise.
2171 * testsuite/30_threads/thread/members/3.cc: Likewise.
2172 * testsuite/30_threads/thread/members/4.cc: Likewise.
2173 * testsuite/30_threads/thread/members/5.cc: Likewise.
2174 * testsuite/30_threads/thread/members/hardware_concurrency.cc:
2176 * testsuite/30_threads/thread/native_handle/typesizes.cc: Likewise.
2177 * testsuite/30_threads/thread/swap/1.cc: Likewise.
2178 * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
2179 * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc:
2181 * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
2182 * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
2183 * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
2185 * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
2186 * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
2187 * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
2188 * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
2189 * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
2190 * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
2191 * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
2192 * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
2193 * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
2194 * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
2195 * testsuite/30_threads/try_lock/1.cc: Likewise.
2196 * testsuite/30_threads/try_lock/2.cc: Likewise.
2197 * testsuite/30_threads/try_lock/3.cc: Likewise.
2198 * testsuite/30_threads/try_lock/4.cc: Likewise.
2199 * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
2200 * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
2201 * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
2202 * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
2203 * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
2204 * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
2205 * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
2206 * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
2207 * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
2208 * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
2209 * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
2211 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
2214 * testsuite/17_intro/headers/c++1998/all_attributes.cc: Do not
2215 test "cold" on darwin.
2216 * testsuite/17_intro/headers/c++2011/all_attributes.cc:
2218 * testsuite/17_intro/headers/c++2014/all_attributes.cc:
2220 * testsuite/17_intro/headers/c++2017/all_attributes.cc:
2222 * testsuite/17_intro/headers/c++2020/all_attributes.cc:
2225 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
2228 * testsuite/25_algorithms/pstl/feature_test-2.cc: Require
2229 tbb-backend effective target.
2230 * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
2231 * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
2232 * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
2234 2020-08-20 Jonathan Wakely <jwakely@redhat.com>
2236 * include/bits/iterator_concepts.h [__STRICT_ANSI__]
2237 (incrementable_traits<__int128>): Define specialization.
2238 (incrementable_traits<unsigned __int128>): Likewise.
2239 * testsuite/std/ranges/iota/96042.cc: Test iota_view with
2242 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2243 Patrick Palka <ppalka@redhat.com>
2246 * include/bits/range_access.h (__detail::__to_unsigned_like):
2247 Do not use make_unsigned_t<T> in the return type, as it can
2248 result in an error before the integral<T> constraint is checked.
2249 [__STRICT_ANSI__]: Add overloads for 128-bit integer types.
2250 (__detail::__make_unsigned_like_t): Define as the return type
2251 of __to_unsigned_like.
2252 * testsuite/std/ranges/subrange/96042.cc: New test.
2254 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2256 * include/bits/stl_tree.h (operator!=, operator>, operator<=)
2257 (operator>=): Remove deprecated functions.
2259 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2262 * include/ext/numeric_traits.h (__is_integer_nonstrict): New
2263 trait which is true for 128-bit integers even in strict modes.
2264 (__numeric_traits_integer, __numeric_traits): Use
2265 __is_integer_nonstrict instead of __is_integer.
2266 * include/std/limits [__STRICT_ANSI__ && __SIZEOF_INT128__]
2267 (numeric_limits<__int128>, (numeric_limits<unsigned __int128>):
2269 * testsuite/std/ranges/iota/96042.cc: New test.
2271 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2273 * include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST)
2274 (_GLIBCXX11_DEPRECATED, _GLIBCXX11_DEPRECATED_SUGGEST)
2275 (_GLIBCXX17_DEPRECATED_SUGGEST, _GLIBCXX20_DEPRECATED_SUGGEST):
2276 Add new macros to comment.
2278 2020-08-19 Patrick Palka <ppalka@redhat.com>
2280 * include/Makefile.am (bits_headers): Add new header
2281 <bits/max_size_type.h>.
2282 * include/Makefile.in: Regenerate.
2283 * include/bits/iterator_concepts.h
2284 (ranges::__detail::__max_diff_type): Remove definition, replace
2285 with forward declaration of class __max_diff_type.
2286 (__detail::__max_size_type): Remove definition, replace with
2287 forward declaration of class __max_size_type.
2288 (__detail::__is_unsigned_int128, __is_signed_int128)
2289 (__is_int128): New concepts.
2290 (__detail::__is_integer_like): Accept __int128 and unsigned
2292 (__detail::__is_signed_integer_like): Accept __int128.
2293 * include/bits/max_size_type.h: New header.
2294 * include/bits/range_access.h: Include <bits/max_size_type.h>.
2295 (__detail::__to_unsigned_like): Two new overloads.
2296 * testsuite/std/ranges/iota/difference_type.cc: New test.
2297 * testsuite/std/ranges/iota/max_size_type.cc: New test.
2299 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2301 * include/bits/c++config (_GLIBCXX_DEPRECATED): Define for all
2303 (_GLIBCXX_DEPRECATED_SUGGEST): New macro for "use 'foo' instead"
2304 message in deprecated warnings.
2305 (_GLIBCXX11_DEPRECATED, _GLIBCXX11_DEPRECATED_SUGGEST): New
2306 macros for marking features deprecated in C++11.
2307 (_GLIBCXX17_DEPRECATED_SUGGEST, _GLIBCXX20_DEPRECATED_SUGGEST):
2309 * include/backward/auto_ptr.h (auto_ptr_ref, auto_ptr<void>):
2310 Use _GLIBCXX11_DEPRECATED instead of _GLIBCXX_DEPRECATED.
2311 (auto_ptr): Use _GLIBCXX11_DEPRECATED_SUGGEST.
2312 * include/backward/binders.h (binder1st, binder2nd): Likewise.
2313 * include/bits/ios_base.h (io_state, open_mode, seek_dir)
2314 (streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
2315 * include/std/streambuf (stossc): Replace C++11 attribute
2316 with _GLIBCXX_DEPRECATED_SUGGEST.
2317 * include/std/type_traits (__is_nullptr_t): Use
2318 _GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED.
2319 * testsuite/27_io/types/1.cc: Check for deprecated warnings.
2320 Also check for io_state, open_mode and seek_dir typedefs.
2322 2020-08-19 Antony Polukhin <antoshkka@gmail.com>
2325 * include/std/type_traits (invoke_result, is_nothrow_invocable_r)
2326 Add static_asserts to make sure that the argument of the type
2327 trait is not misused with incomplete types.
2328 (is_swappable_with, is_nothrow_swappable_with): Add static_asserts
2329 to make sure that the first and second arguments of the type trait
2330 are not misused with incomplete types.
2331 * testsuite/20_util/invoke_result/incomplete_neg.cc: New test.
2332 * testsuite/20_util/is_nothrow_invocable/incomplete_neg.cc: New test.
2333 * testsuite/20_util/is_nothrow_swappable/incomplete_neg.cc: New test.
2334 * testsuite/20_util/is_nothrow_swappable_with/incomplete_neg.cc: New
2336 * testsuite/20_util/is_swappable_with/incomplete_neg.cc: New test.
2338 2020-08-18 David Edelsohn <dje.gcc@gmail.com>
2339 Clement Chigot <clement.chigot@atos.net>
2341 * config/os/aix/t-aix: Add complementary mode object files to
2344 2020-08-18 Jonathan Wakely <jwakely@redhat.com>
2346 * testsuite/17_intro/headers/c++1998/all_attributes.cc: Check
2347 "cold" isn't used in the library. Also check <cxxabi.h>.
2348 * testsuite/17_intro/headers/c++2011/all_attributes.cc:
2350 * testsuite/17_intro/headers/c++2014/all_attributes.cc:
2352 * testsuite/17_intro/headers/c++2017/all_attributes.cc:
2354 * testsuite/17_intro/headers/c++2020/all_attributes.cc:
2357 2020-08-18 Jonathan Wakely <jwakely@redhat.com>
2360 * include/std/future (__future_base::_S_make_deferred_state)
2361 (__future_base::_S_make_async_state): Remove.
2362 (__future_base::_Deferred_state): Change constructor to accept a
2363 parameter pack of arguments and forward them to the call
2365 (__future_base::_Async_state_impl): Likewise. Replace lambda
2366 expression with a named member function.
2367 (async): Construct state object directly from the arguments,
2368 instead of using thread::__make_invoker, _S_make_deferred_state
2369 and _S_make_async_state. Move shared state into the returned
2371 * include/std/thread (thread::_Call_wrapper): New alias
2372 template for use by constructor and std::async.
2373 (thread::thread(Callable&&, Args&&...)): Create state object
2374 directly instead of using _S_make_state.
2375 (thread::__make_invoker, thread::__decayed_tuple)
2376 (thread::_S_make_state): Remove.
2377 * testsuite/30_threads/async/69724.cc: New test.
2379 2020-08-17 Jonathan Wakely <jwakely@redhat.com>
2384 * include/std/tuple [__has_cpp_attribute(no_unique_address)]
2385 (_Head_base<Idx, Head, true>): New definition of the partial
2386 specialization, using [[no_unique_address]] instead of
2388 * testsuite/libstdc++-prettyprinters/48362.cc: Adjust expected
2390 * testsuite/20_util/tuple/comparison_operators/93147.cc: New test.
2391 * testsuite/20_util/tuple/creation_functions/55713.cc: New test.
2392 * testsuite/20_util/tuple/element_access/71096.cc: New test.
2394 2020-08-14 Lewis Hyatt <lhyatt@gmail.com>
2396 * testsuite/lib/libstdc++.exp: Use the new option
2397 -fdiagnostics-plain-output.
2399 2020-08-13 Jonathan Wakely <jwakely@redhat.com>
2401 * acinclude.m4 (GLIBCXX_ENABLE_CHEADERS): Warn if the c_std
2402 option is used and fail unless --enable-cheaders-obsolete is
2404 * configure: Regenerate.
2406 2020-08-12 Jonathan Wakely <jwakely@redhat.com>
2409 * include/bits/basic_string.h (operator=(basic_string&&)): Check
2410 for self-move before copying with char_traits::copy.
2411 * include/bits/hashtable.h (operator=(_Hashtable&&)): Check for
2413 * include/bits/stl_deque.h (_M_move_assign1(deque&&, false_type)):
2414 Check for equal allocators.
2415 * include/bits/stl_list.h (_M_move_assign(list&&, true_type)):
2416 Call clear() instead of _M_clear().
2417 * include/debug/formatter.h (__msg_self_move_assign): Change
2419 * include/debug/macros.h (__glibcxx_check_self_move_assign):
2420 (_GLIBCXX_DEBUG_VERIFY): Remove.
2421 * include/debug/safe_container.h (operator=(_Safe_container&&)):
2422 Remove assertion check for safe move and make it well-defined.
2423 * include/debug/safe_iterator.h (operator=(_Safe_iterator&&)):
2424 Remove assertion check for self-move.
2425 * include/debug/safe_local_iterator.h
2426 (operator=(_Safe_local_iterator&&)): Likewise.
2427 * testsuite/21_strings/basic_string/cons/char/self_move.cc: New test.
2428 * testsuite/23_containers/deque/cons/self_move.cc: New test.
2429 * testsuite/23_containers/forward_list/cons/self_move.cc: New test.
2430 * testsuite/23_containers/list/cons/self_move.cc: New test.
2431 * testsuite/23_containers/set/cons/self_move.cc: New test.
2432 * testsuite/23_containers/unordered_set/cons/self_move.cc: New test.
2433 * testsuite/23_containers/vector/cons/self_move.cc: New test.
2435 2020-08-11 François Dumont <fdumont@gcc.gnu.org>
2438 * include/bits/forward_list.tcc (forward_list<>::remove): Collect nodes
2439 to destroy in an intermediate forward_list.
2440 (forward_list<>::remove_if, forward_list<>::unique): Likewise.
2441 * include/bits/list.tcc (list<>::remove, list<>::unique): Likewise.
2442 (list<>::remove_if): Likewise.
2443 * include/debug/forward_list (forward_list<>::_M_erase_after): Remove.
2444 (forward_list<>::erase_after): Adapt.
2445 (forward_list<>::remove, forward_list<>::remove_if): Collect nodes to
2446 destroy in an intermediate forward_list.
2447 (forward_list<>::unique): Likewise.
2448 * include/debug/list (list<>::remove, list<>::unique): Likewise.
2449 (list<>::remove_if): Likewise.
2450 * testsuite/23_containers/forward_list/operations/91620.cc: New test.
2451 * testsuite/23_containers/list/operations/91620.cc: New test.
2453 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2455 * testsuite/30_threads/thread/cons/84535.cc: Use a custom
2457 * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
2459 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2462 * include/experimental/executor [!_GLIBCXX_HAS_GTHREADS]:
2463 (execution_context::mutex_type): Define dummy mutex type.
2464 (system_context): Use execution_context::mutex_type.
2465 (system_context) [!_GLIBCXX_HAS_GTHREADS]: Define dummy
2466 thread and condition variable types.
2467 [!_GLIBCXX_HAS_GTHREADS] (system_context::_M_run()): Do not
2469 (system_context::_M_post) [!_GLIBCXX_HAS_GTHREADS]: Throw
2470 an exception when threads aren't available.
2471 (strand::running_in_this_thread()): Defer to _M_state.
2472 (strand::_State::running_in_this_thread()): New function.
2473 (use_future_t): Do not depend on _GLIBCXX_USE_C99_STDINT_TR1.
2474 * include/experimental/io_context (io_context): Use the
2475 execution_context::mutex_type alias. Replace stack of thread
2477 * testsuite/experimental/net/execution_context/use_service.cc:
2478 Enable test for non-pthread targets.
2480 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2482 * include/experimental/executor (system_context::a__tag): Make
2483 default constructor explicit.
2485 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2487 * include/experimental/executor (system_context::_M_run()):
2489 * testsuite/experimental/net/system_context/1.cc: New test.
2491 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2493 * include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using
2494 #ifdef instead of #if.
2495 (stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before
2496 using __gthread_yield.
2498 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2500 * include/std/thread [!_GLIBCXX_HAS_GTHREADS] (this_thread::yield)
2501 (this_thread::sleep_until): Define.
2502 [!_GLIBCXX_HAS_GTHREADS] (this_thread::sleep_for): Define. Replace
2503 use of __gthread_time_t typedef with timespec.
2504 * src/c++11/thread.cc [!_GLIBCXX_HAS_GTHREADS] (__sleep_for):
2506 * testsuite/30_threads/this_thread/2.cc: Moved to...
2507 * testsuite/30_threads/this_thread/yield.cc: ...here.
2508 * testsuite/30_threads/this_thread/3.cc: Moved to...
2509 * testsuite/30_threads/this_thread/sleep_for-mt.cc: ...here.
2510 * testsuite/30_threads/this_thread/4.cc: Moved to...
2511 * testsuite/30_threads/this_thread/sleep_until-mt.cc: ...here.
2512 * testsuite/30_threads/this_thread/58038.cc: Add
2514 * testsuite/30_threads/this_thread/60421.cc: Likewise.
2515 * testsuite/30_threads/this_thread/sleep_for.cc: New test.
2516 * testsuite/30_threads/this_thread/sleep_until.cc: New test.
2518 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2521 * src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead
2522 of calling ::lstat directly.
2523 * src/filesystem/ops.cc (read_symlink): Likewise.
2525 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2527 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
2528 Use gdb.Type.strip_typedefs().
2529 * testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in
2530 the emulated old type.
2532 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2535 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on
2536 $enable_libstdcxx_filesystem_ts.
2537 * configure: Regenerate.
2539 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2542 * include/bits/stl_iterator.h (inserter): Do not deduce
2543 iterator type (LWG 561).
2544 * testsuite/24_iterators/insert_iterator/dr561.cc: New test.
2546 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2548 * include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI=0]
2549 (basic_string::reserve()): Do nothing if exceptions are not
2552 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2555 * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS]
2556 (stat_type): Change to __stat64.
2557 (stat): Use _wstat64.
2559 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
2562 * include/debug/bitset (bitset::operator==): Call _M_base() on
2564 (bitset::operator!=): Likewise, but don't define it at all when
2565 default comparisons are supported by the compiler.
2566 * testsuite/23_containers/bitset/operations/96303.cc: New test.
2568 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
2570 * testsuite/18_support/comparisons/algorithms/partial_order.cc:
2571 Replace VERIFY with static_assert where the compiler now
2573 * testsuite/18_support/comparisons/algorithms/weak_order.cc:
2576 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
2578 * config/abi/pre/gnu.ver: Fix wildcards for wstring symbols.
2580 2020-08-06 Andrew Luo <andrewluotechnologies@outlook.com>
2581 Jonathan Wakely <jwakely@redhat.com>
2583 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Use less greedy
2584 patterns for basic_string members.
2585 (GLIBCXX_3.4.29): Export new basic_string::reserve symbols.
2586 * doc/xml/manual/status_cxx2020.xml: Update P0966 status.
2587 * include/bits/basic_string.h (shrink_to_fit()): Call reserve().
2588 (reserve(size_type)): Remove default argument.
2589 (reserve()): Declare new overload.
2590 [!_GLIBCXX_USE_CXX11_ABI] (shrink_to_fit, reserve): Likewise.
2591 * include/bits/basic_string.tcc (reserve(size_type)): Remove
2592 support for shrinking capacity.
2593 (reserve()): Perform shrink-to-fit operation.
2594 [!_GLIBCXX_USE_CXX11_ABI] (reserve): Likewise.
2595 * testsuite/21_strings/basic_string/capacity/1.cc: Adjust to
2596 reflect new behavior.
2597 * testsuite/21_strings/basic_string/capacity/char/1.cc:
2599 * testsuite/21_strings/basic_string/capacity/char/18654.cc:
2601 * testsuite/21_strings/basic_string/capacity/char/2.cc:
2603 * testsuite/21_strings/basic_string/capacity/wchar_t/1.cc:
2605 * testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc:
2607 * testsuite/21_strings/basic_string/capacity/wchar_t/2.cc:
2610 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
2612 * include/bits/basic_string.tcc
2613 (operator>>(basic_istream&, basic_string&)): Do not set eofbit
2614 if extraction stopped after in.width() characters.
2615 * src/c++98/istream-string.cc (operator>>(istream&, string&)):
2617 * include/bits/istream.tcc (__istream_extract): Do not set
2618 eofbit if extraction stopped after n-1 characters.
2619 * src/c++98/istream.cc (__istream_extract): Likewise.
2620 * testsuite/21_strings/basic_string/inserters_extractors/char/13.cc: New test.
2621 * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/13.cc: New test.
2622 * testsuite/27_io/basic_istream/extractors_character/char/5.cc: New test.
2623 * testsuite/27_io/basic_istream/extractors_character/wchar_t/5.cc: New test.
2625 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
2628 * src/c++17/fs_ops.cc (fs::read_symlink): Return an error
2629 immediately for non-symlinks.
2630 * src/filesystem/ops.cc (fs::read_symlink): Likewise.
2632 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
2634 * include/std/istream (operator>>(istream&, char*)): Add
2635 attributes to get warnings for pointers that are null or known
2636 to point to the end of a buffer. Request upper bound from
2637 __builtin_object_size check and handle zero-sized buffer case.
2638 (operator>>(istream&, signed char))
2639 (operator>>(istream&, unsigned char*)): Add attributes.
2640 * testsuite/27_io/basic_istream/extractors_character/char/overflow.cc:
2641 Check extracting into the middle of a buffer.
2642 * testsuite/27_io/basic_istream/extractors_character/wchar_t/overflow.cc: New test.
2644 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
2646 * include/std/atomic (atomic<T>::store): Reformat.
2648 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
2650 * doc/xml/manual/status_cxx2017.xml: Replace oneAPI DPC++ link
2651 with LLVM repo for PSTL.
2652 * doc/html/manual/status.html: Regenerate.
2654 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
2656 * config/abi/pre/gnu.ver (GLIBCXX_3.4.29): Export new symbols.
2657 * include/bits/istream.tcc (__istream_extract): New function
2658 template implementing both of operator>>(istream&, char*) and
2659 operator>>(istream&, char(&)[N]). Add explicit instantiation
2660 declaration for it. Remove explicit instantiation declarations
2661 for old function templates.
2662 * include/std/istream (__istream_extract): Declare.
2663 (operator>>(basic_istream<C,T>&, C*)): Define inline and simply
2664 call __istream_extract.
2665 (operator>>(basic_istream<char,T>&, signed char*)): Likewise.
2666 (operator>>(basic_istream<char,T>&, unsigned char*)): Likewise.
2667 (operator>>(basic_istream<C,T>&, C(7)[N])): Define for LWG 2499.
2668 (operator>>(basic_istream<char,T>&, signed char(&)[N])):
2670 (operator>>(basic_istream<char,T>&, unsigned char(&)[N])):
2672 * include/std/streambuf (basic_streambuf): Declare char overload
2673 of __istream_extract as a friend.
2674 * src/c++11/istream-inst.cc: Add explicit instantiation
2675 definition for wchar_t overload of __istream_extract. Remove
2676 explicit instantiation definitions of old operator>> overloads
2677 for versioned-namespace build.
2678 * src/c++98/istream.cc (operator>>(istream&, char*)): Replace
2679 with __istream_extract(istream&, char*, streamsize).
2680 * testsuite/27_io/basic_istream/extractors_character/char/3.cc:
2681 Do not use variable-length array.
2682 * testsuite/27_io/basic_istream/extractors_character/char/4.cc:
2683 Do not run test for C++20.
2684 * testsuite/27_io/basic_istream/extractors_character/char/9555-ic.cc:
2685 Do not test writing to pointers for C++20.
2686 * testsuite/27_io/basic_istream/extractors_character/char/9826.cc:
2687 Use array instead of pointer.
2688 * testsuite/27_io/basic_istream/extractors_character/wchar_t/3.cc:
2689 Do not use variable-length array.
2690 * testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
2691 Do not run test for C++20.
2692 * testsuite/27_io/basic_istream/extractors_character/wchar_t/9555-ic.cc:
2693 Do not test writing to pointers for C++20.
2694 * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
2696 * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
2698 * testsuite/27_io/basic_istream/extractors_character/char/overflow.cc:
2700 * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
2702 * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
2705 2020-08-01 Gerald Pfeifer <gerald@pfeifer.com>
2707 * doc/xml/manual/using_exceptions.xml: Move www.stroustrup.com to
2709 * doc/html/manual/using_exceptions.html: Regenerate.
2711 2020-07-31 Gerald Pfeifer <gerald@pfeifer.com>
2713 * doc/xml/manual/status_cxx2017.xml: ParallelSTL is now part
2714 of oneAPI DPC++ Library on Github.
2715 * doc/html/manual/status.html: Regenerate.
2717 2020-07-31 François Dumont <fdumont@gcc.gnu.org>
2719 * include/bits/stl_bvector.h
2720 [_GLIBCXX_INLINE_VERSION](_Bvector_impl_data::_M_start): Define as
2722 (_Bvector_impl_data(const _Bvector_impl_data&)): Default.
2723 (_Bvector_impl_data(_Bvector_impl_data&&)): Delegate to latter.
2724 (_Bvector_impl_data::operator=(const _Bvector_impl_data&)): Default.
2725 (_Bvector_impl_data::_M_move_data(_Bvector_impl_data&&)): Use latter.
2726 (_Bvector_impl_data::_M_reset()): Likewise.
2727 (_Bvector_impl_data::_M_swap_data): New.
2728 (_Bvector_impl::_Bvector_impl(_Bvector_impl&&)): Implement explicitely.
2729 (_Bvector_impl::_Bvector_impl(_Bit_alloc_type&&, _Bvector_impl&&)): New.
2730 (_Bvector_base::_Bvector_base(_Bvector_base&&, const allocator_type&)):
2732 (vector::vector(vector&&, const allocator_type&, true_type)): New, use
2734 (vector::vector(vector&&, const allocator_type&, false_type)): New.
2735 (vector::vector(vector&&, const allocator_type&)): Use latters.
2736 (vector::vector(const vector&, const allocator_type&)): Adapt.
2737 [__cplusplus >= 201103](vector::vector(_InputIt, _InputIt,
2738 const allocator_type&)): Use _M_initialize_range.
2739 (vector::operator[](size_type)): Use iterator operator[].
2740 (vector::operator[](size_type) const): Use const_iterator operator[].
2741 (vector::swap(vector&)): Add assertions on allocators. Use _M_swap_data.
2742 [__cplusplus >= 201103](vector::insert(const_iterator, _InputIt,
2743 _InputIt)): Use _M_insert_range.
2744 (vector::_M_initialize(size_type)): Adapt.
2745 [__cplusplus >= 201103](vector::_M_initialize_dispatch): Remove.
2746 [__cplusplus >= 201103](vector::_M_insert_dispatch): Remove.
2747 * python/libstdcxx/v6/printers.py (StdVectorPrinter._iterator): Stop
2748 using start _M_offset.
2749 (StdVectorPrinter.to_string): Likewise.
2750 * testsuite/23_containers/vector/bool/allocator/swap.cc: Adapt.
2751 * testsuite/23_containers/vector/bool/cons/noexcept_move_construct.cc:
2754 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2756 * testsuite/27_io/basic_istream/ignore/char/94749.cc: Use 0
2758 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc:
2761 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2763 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
2764 Move struct to namespace scope.
2766 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2768 * testsuite/26_numerics/numbers/float128.cc: Check
2769 __STRICT_ANSI__ before using __float128.
2770 * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc:
2773 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2775 * testsuite/18_support/set_terminate.cc: Require C++11 or
2777 * testsuite/28_regex/simple_c++11.cc: Likewise.
2778 * testsuite/tr1/headers/c++200x/complex.cc: Likewise.
2779 * testsuite/24_iterators/headers/iterator/synopsis.cc:
2780 Require C++14 or lower.
2782 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2784 * testsuite/23_containers/span/back_assert_neg.cc: Split c++2a
2785 effective-target from xfail selector.
2786 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
2787 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
2788 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
2789 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
2790 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
2791 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
2792 * testsuite/23_containers/span/subspan_2_assert_neg.cc:
2794 * testsuite/23_containers/span/subspan_3_assert_neg.cc:
2796 * testsuite/23_containers/span/subspan_4_assert_neg.cc:
2798 * testsuite/23_containers/span/subspan_5_assert_neg.cc:
2800 * testsuite/23_containers/span/subspan_6_assert_neg.cc:
2802 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
2804 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2806 * testsuite/20_util/reference_wrapper/83427.cc: Adjust
2807 effective-target to specific language mode only.
2808 * testsuite/24_iterators/headers/iterator/range_access_c++11.cc:
2810 * testsuite/24_iterators/headers/iterator/range_access_c++14.cc:
2812 * testsuite/24_iterators/headers/iterator/synopsis_c++11.cc:
2814 * testsuite/24_iterators/headers/iterator/synopsis_c++14.cc:
2816 * testsuite/26_numerics/valarray/69116.cc:
2818 * testsuite/30_threads/headers/condition_variable/std_c++0x_neg.cc:
2819 Remove whitespace at end of file.
2820 * testsuite/30_threads/headers/future/std_c++0x_neg.cc:
2823 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2825 * testsuite/17_intro/headers/c++2017/all_attributes.cc: Add
2826 c++17 effective-target.
2827 * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc:
2829 * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: Likewise.
2830 * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc:
2832 * testsuite/17_intro/headers/c++2017/operator_names.cc:
2834 * testsuite/17_intro/headers/c++2017/stdc++.cc: Likewise.
2835 * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
2837 * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
2839 * testsuite/19_diagnostics/error_code/is_error_code_v.cc:
2841 * testsuite/20_util/any/assign/1.cc: Likewise.
2842 * testsuite/20_util/any/assign/2.cc: Likewise.
2843 * testsuite/20_util/any/assign/emplace.cc: Likewise.
2844 * testsuite/20_util/any/assign/exception.cc: Likewise.
2845 * testsuite/20_util/any/assign/self.cc: Likewise.
2846 * testsuite/20_util/any/cons/1.cc: Likewise.
2847 * testsuite/20_util/any/cons/2.cc: Likewise.
2848 * testsuite/20_util/any/cons/aligned.cc: Likewise.
2849 * testsuite/20_util/any/cons/explicit.cc: Likewise.
2850 * testsuite/20_util/any/cons/in_place.cc: Likewise.
2851 * testsuite/20_util/any/cons/nontrivial.cc: Likewise.
2852 * testsuite/20_util/any/make_any.cc: Likewise.
2853 * testsuite/20_util/any/misc/any_cast.cc: Likewise.
2854 * testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
2855 * testsuite/20_util/any/misc/swap.cc: Likewise.
2856 * testsuite/20_util/any/modifiers/1.cc: Likewise.
2857 * testsuite/20_util/any/observers/type.cc: Likewise.
2858 * testsuite/20_util/any/requirements.cc: Likewise.
2859 * testsuite/20_util/any/typedefs.cc: Likewise.
2860 * testsuite/20_util/as_const/1.cc: Likewise.
2861 * testsuite/20_util/as_const/rvalue_neg.cc: Likewise.
2862 * testsuite/20_util/bind/is_placeholder_v.cc: Likewise.
2863 * testsuite/20_util/bool_constant/requirements.cc: Likewise.
2864 * testsuite/20_util/duration/requirements/treat_as_floating_point_v.cc:
2866 * testsuite/20_util/duration_cast/rounding.cc: Likewise.
2867 * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
2869 * testsuite/20_util/function_objects/invoke/59768.cc: Likewise.
2870 * testsuite/20_util/function_objects/not_fn/1.cc: Likewise.
2871 * testsuite/20_util/function_objects/searchers.cc: Likewise.
2872 * testsuite/20_util/in_place/requirements.cc: Likewise.
2873 * testsuite/20_util/is_invocable/requirements/explicit_instantiation.cc:
2875 * testsuite/20_util/is_invocable/requirements/typedefs.cc:
2877 * testsuite/20_util/is_invocable/value.cc: Likewise.
2878 * testsuite/20_util/is_nothrow_invocable/requirements/explicit_instantiation.cc:
2880 * testsuite/20_util/is_nothrow_invocable/requirements/typedefs.cc:
2882 * testsuite/20_util/is_nothrow_swappable/requirements/explicit_instantiation.cc:
2884 * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
2886 * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
2887 * testsuite/20_util/is_nothrow_swappable_with/requirements/explicit_instantiation.cc:
2889 * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
2891 * testsuite/20_util/is_nothrow_swappable_with/value.cc:
2893 * testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc:
2895 * testsuite/20_util/is_swappable/requirements/typedefs.cc:
2897 * testsuite/20_util/is_swappable/value.cc: Likewise.
2898 * testsuite/20_util/is_swappable_with/requirements/explicit_instantiation.cc:
2900 * testsuite/20_util/is_swappable_with/requirements/typedefs.cc:
2902 * testsuite/20_util/is_swappable_with/value.cc: Likewise.
2903 * testsuite/20_util/logical_traits/requirements/explicit_instantiation.cc:
2905 * testsuite/20_util/logical_traits/requirements/typedefs.cc:
2907 * testsuite/20_util/logical_traits/value.cc: Likewise.
2908 * testsuite/20_util/optional/constexpr/make_optional.cc: Likewise.
2909 * testsuite/20_util/optional/constexpr/observers/2.cc: Likewise.
2910 * testsuite/20_util/optional/constexpr/observers/3.cc: Likewise.
2911 * testsuite/20_util/optional/hash.cc: Likewise.
2912 * testsuite/20_util/pair/swap_cxx17.cc: Likewise.
2913 * testsuite/20_util/ratio/requirements/ratio_equal_v.cc: Likewise.
2914 * testsuite/20_util/shared_ptr/requirements/weak_type.cc:
2916 * testsuite/20_util/specialized_algorithms/memory_management_tools/1.cc:
2918 * testsuite/20_util/tuple/apply/1.cc: Likewise.
2919 * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.
2920 * testsuite/20_util/tuple/swap_cxx17.cc: Likewise.
2921 * testsuite/20_util/tuple/tuple_size_v.cc: Likewise.
2922 * testsuite/20_util/unique_ptr/specialized_algorithms/swap_cxx17.cc:
2924 * testsuite/20_util/uses_allocator/requirements/uses_allocator_v.cc:
2926 * testsuite/20_util/variant/any.cc: Likewise.
2927 * testsuite/20_util/variant/compile.cc: Likewise.
2928 * testsuite/20_util/variant/hash.cc: Likewise.
2929 * testsuite/20_util/variant/index_type.cc: Likewise.
2930 * testsuite/20_util/variant/run.cc: Likewise.
2931 * testsuite/20_util/void_t/1.cc: Likewise.
2932 * testsuite/21_strings/basic_string/79162.cc: Likewise.
2933 * testsuite/21_strings/basic_string/cons/char/7.cc: Likewise.
2934 * testsuite/21_strings/basic_string/cons/wchar_t/7.cc: Likewise.
2935 * testsuite/21_strings/basic_string/lwg2758.cc: Likewise.
2936 * testsuite/21_strings/basic_string/lwg2946.cc: Likewise.
2937 * testsuite/21_strings/basic_string/modifiers/append/char/4.cc:
2939 * testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc:
2941 * testsuite/21_strings/basic_string/modifiers/assign/char/4.cc:
2943 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/4.cc:
2945 * testsuite/21_strings/basic_string/modifiers/insert/char/3.cc:
2947 * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/3.cc:
2949 * testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
2951 * testsuite/21_strings/basic_string/modifiers/replace/wchar_t/7.cc:
2953 * testsuite/21_strings/basic_string/operations/compare/char/2.cc:
2955 * testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc:
2957 * testsuite/21_strings/basic_string/operations/data/char/2.cc:
2959 * testsuite/21_strings/basic_string/operations/data/wchar_t/2.cc:
2961 * testsuite/21_strings/basic_string/operations/find/char/5.cc:
2963 * testsuite/21_strings/basic_string/operations/find/wchar_t/5.cc:
2965 * testsuite/21_strings/basic_string/operators/char/5.cc: Likewise.
2966 * testsuite/21_strings/basic_string/operators/wchar_t/5.cc:
2968 * testsuite/21_strings/basic_string_view/capacity/1.cc: Likewise.
2969 * testsuite/21_strings/basic_string_view/cons/char/1.cc: Likewise.
2970 * testsuite/21_strings/basic_string_view/cons/char/2.cc: Likewise.
2971 * testsuite/21_strings/basic_string_view/cons/char/3.cc: Likewise.
2972 * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
2974 * testsuite/21_strings/basic_string_view/cons/wchar_t/2.cc:
2976 * testsuite/21_strings/basic_string_view/cons/wchar_t/3.cc:
2978 * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
2980 * testsuite/21_strings/basic_string_view/element_access/char/2.cc:
2982 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
2984 * testsuite/21_strings/basic_string_view/element_access/char/front_back.cc:
2986 * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
2988 * testsuite/21_strings/basic_string_view/element_access/wchar_t/2.cc:
2990 * testsuite/21_strings/basic_string_view/element_access/wchar_t/empty.cc:
2992 * testsuite/21_strings/basic_string_view/element_access/wchar_t/front_back.cc:
2994 * testsuite/21_strings/basic_string_view/include.cc: Likewise.
2995 * testsuite/21_strings/basic_string_view/inserters/char/1.cc:
2997 * testsuite/21_strings/basic_string_view/inserters/char/2.cc:
2999 * testsuite/21_strings/basic_string_view/inserters/char/3.cc:
3001 * testsuite/21_strings/basic_string_view/inserters/pod/10081-out.cc:
3003 * testsuite/21_strings/basic_string_view/inserters/wchar_t/1.cc:
3005 * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
3007 * testsuite/21_strings/basic_string_view/inserters/wchar_t/3.cc:
3009 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
3011 * testsuite/21_strings/basic_string_view/literals/types.cc:
3013 * testsuite/21_strings/basic_string_view/literals/values-char8_t.cc:
3015 * testsuite/21_strings/basic_string_view/literals/values.cc:
3017 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc:
3019 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t/1.cc:
3021 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char/1.cc:
3023 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t/1.cc:
3025 * testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
3027 * testsuite/21_strings/basic_string_view/operations/compare/char/13650.cc:
3029 * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/1.cc:
3031 * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/13650.cc:
3033 * testsuite/21_strings/basic_string_view/operations/copy/char/1.cc:
3035 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/1.cc:
3037 * testsuite/21_strings/basic_string_view/operations/data/char/1.cc:
3039 * testsuite/21_strings/basic_string_view/operations/data/wchar_t/1.cc:
3041 * testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
3043 * testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
3045 * testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
3047 * testsuite/21_strings/basic_string_view/operations/find/char/4.cc:
3049 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
3051 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
3053 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
3055 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/4.cc:
3057 * testsuite/21_strings/basic_string_view/operations/rfind/char/1.cc:
3059 * testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
3061 * testsuite/21_strings/basic_string_view/operations/rfind/char/3.cc:
3063 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/1.cc:
3065 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/2.cc:
3067 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/3.cc:
3069 * testsuite/21_strings/basic_string_view/operations/string_conversion/1.cc:
3071 * testsuite/21_strings/basic_string_view/operations/substr/char/1.cc:
3073 * testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.cc:
3075 * testsuite/21_strings/basic_string_view/range_access/char/1.cc:
3077 * testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
3079 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc:
3081 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc:
3083 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc:
3085 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc:
3087 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t/1.cc:
3089 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc:
3091 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
3093 * testsuite/21_strings/basic_string_view/typedefs.cc: Likewise.
3094 * testsuite/21_strings/basic_string_view/types/1.cc: Likewise.
3095 * testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
3097 * testsuite/23_containers/map/modifiers/extract.cc: Likewise.
3098 * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
3100 * testsuite/23_containers/map/modifiers/merge.cc: Likewise.
3101 * testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
3102 * testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
3103 * testsuite/23_containers/multimap/modifiers/merge.cc: Likewise.
3104 * testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
3105 * testsuite/23_containers/multiset/modifiers/merge.cc: Likewise.
3106 * testsuite/23_containers/set/modifiers/extract.cc: Likewise.
3107 * testsuite/23_containers/set/modifiers/merge.cc: Likewise.
3108 * testsuite/23_containers/unordered_map/modifiers/extract.cc:
3110 * testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
3112 * testsuite/23_containers/unordered_map/modifiers/merge.cc:
3114 * testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
3116 * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
3118 * testsuite/23_containers/unordered_multimap/modifiers/merge.cc:
3120 * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
3122 * testsuite/23_containers/unordered_multiset/modifiers/merge.cc:
3124 * testsuite/23_containers/unordered_set/modifiers/extract.cc:
3126 * testsuite/23_containers/unordered_set/modifiers/merge.cc:
3128 * testsuite/24_iterators/headers/iterator/range_access_c++17.cc:
3130 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc:
3132 * testsuite/25_algorithms/clamp/1.cc: Likewise.
3133 * testsuite/25_algorithms/clamp/2.cc: Likewise.
3134 * testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
3135 * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc:
3137 * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/pod.cc:
3139 * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
3141 * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
3143 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc:
3145 * testsuite/29_atomics/atomic/is_always_lock_free.cc: Likewise.
3146 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
3148 * testsuite/30_threads/shared_lock/70766.cc: Likewise.
3149 * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
3150 * testsuite/30_threads/shared_mutex/cons/assign_neg.cc:
3152 * testsuite/30_threads/shared_mutex/cons/copy_neg.cc:
3154 * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
3156 * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
3157 * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
3158 * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
3160 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3163 * include/bits/stl_iterator.h (reverse_iterator): Friend
3164 declaration should not depend on __cplusplus.
3166 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3168 * testsuite/experimental/filesystem/filesystem_error/cons.cc:
3169 Remove -std=gnu++17 option.
3171 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3173 * testsuite/20_util/is_aggregate/value.cc: Adjust for changes to
3174 definition of aggregates in C++20.
3175 * testsuite/20_util/optional/requirements.cc: Adjust for
3176 defaulted comparisons in C++20.
3178 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3180 * testsuite/20_util/tuple/78939.cc: Suppress warnings about
3181 deprecation of volatile-qualified structured bindings in C++20.
3182 * testsuite/20_util/variable_templates_for_traits.cc: Likewise
3183 for deprecation of is_pod in C++20
3185 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3187 * testsuite/20_util/time_point_cast/rounding.cc: Remove
3188 duplicate dg-do directive and add c++17 effective target.
3190 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
3192 * src/c++17/floating_from_chars.cc (from_chars_impl): Use
3193 LC_ALL_MASK not LC_ALL.
3195 2020-07-31 Richard Biener <rguenther@suse.de>
3198 * testsuite/20_util/assume_aligned/3.cc: Use -g0.
3200 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3202 * include/bits/basic_string.h (size_type, difference_type):
3203 Use allocator_traits to obtain the allocator's size_type and
3206 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3209 * src/c++17/floating_from_chars.cc (from_chars_impl): Use
3211 [!_GLIBCXX_USE_C99_STDLIB]: Use strtod for float and long
3214 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3216 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
3217 Use allocator with the correct value type.
3218 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
3221 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3223 * testsuite/20_util/from_chars/4.cc: Pass non-const iterator
3226 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3228 * include/bits/iterator_concepts.h (__detail::__cv_bool): New
3230 (__detail::__integral_nonbool): Likewise.
3231 (__detail::__is_integer_like): Use __integral_nonbool.
3232 * testsuite/std/ranges/access/lwg3467.cc: New test.
3234 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3236 * testsuite/20_util/from_chars/4.cc: Use dg-add-options ieee.
3237 * testsuite/29_atomics/atomic_float/1.cc: Likewise.
3239 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
3241 * testsuite/23_containers/vector/bool/72847.cc: Use the
3242 exceptions_enabled effective-target keyword instead of
3243 checking for an explicit -fno-exceptions option.
3244 * testsuite/util/testsuite_abi.cc (examine_symbol): Remove
3245 redundant try-catch.
3246 * testsuite/util/testsuite_allocator.h [!__cpp_exceptions]:
3247 Do not define check_allocate_max_size and memory_resource.
3248 * testsuite/util/testsuite_containers.h: Replace comment with
3249 #error if wrong standard dialect used.
3250 * testsuite/util/testsuite_shared.cc: Likewise.
3252 2020-07-29 François Dumont <fdumont@gcc.gnu.org>
3254 * include/bits/hashtable_policy.h (_Node_iterator_base()): New.
3255 (operator==(const _Node_iterator_base&, const _Node_iterator_base&)):
3257 (operator!=(const _Node_iterator_base&, const _Node_iterator_base&)):
3259 (_Local_iterator_base<>): Inherits _Node_iterator_base.
3260 (_Local_iterator_base<>::_M_cur): Remove.
3261 (_Local_iterator_base<>::_M_curr()): Remove.
3262 (operator==(const _Local_iterator_base&, const _Local_iterator_base&)):
3264 (operator!=(const _Local_iterator_base&, const _Local_iterator_base&)):
3266 * include/debug/unordered_map (unordered_map<>::_M_invalidate): Adapt.
3267 (unordered_multimap<>::_M_invalidate): Adapt.
3268 * include/debug/unordered_set (unordered_set<>::_M_invalidate): Adapt.
3269 (unordered_multiset<>::_M_invalidate): Adapt.
3271 2020-07-29 David Edelsohn <dje.gcc@gmail.com>
3272 Jonathan Wakely <jwakely@redhat.com>
3273 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
3275 * testsuite/lib/dg-options.exp (add_options_for_libatomic): Add
3276 target powerpc-ibm-aix* and powerpc*-*-darwin*.
3277 * testsuite/29_atomics/atomic_float/value_init.cc: Add options
3280 2020-07-29 François Dumont <fdumont@gcc.gnu.org>
3282 * include/bits/hashtable.h
3283 (_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)):
3284 Add noexcept qualification.
3285 (_Hashtable(_Hashtable&&)): Fix noexcept qualification.
3286 (_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept
3288 * include/bits/unordered_map.h
3289 (unordered_map(unordered_map&&, const allocator_type&)): Add noexcept
3291 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
3293 * include/bits/unordered_set.h
3294 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
3295 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
3297 * include/debug/unordered_map
3298 (unordered_map(unordered_map&&, const allocator_type&)): Likewise.
3299 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
3301 * include/debug/unordered_set
3302 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
3303 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
3305 * testsuite/23_containers/unordered_map/allocator/default_init.cc:
3307 * testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc:
3309 * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc:
3311 * testsuite/23_containers/unordered_map/modifiers/move_assign.cc:
3313 * testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc:
3315 * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc:
3317 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
3319 * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc:
3321 * testsuite/23_containers/unordered_set/allocator/default_init.cc:
3323 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
3325 * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc:
3328 2020-07-28 François Dumont <fdumont@gcc.gnu.org>
3330 * include/bits/hashtable.h
3331 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
3332 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
3333 const allocator_type&, true_type)): New.
3334 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
3335 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
3336 const allocator_type&, false_type)): New.
3337 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
3338 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
3339 const allocator_type&)): Delegate to latters.
3340 (operator=(initializer_list<value_type>)): Rehash if too small.
3341 (_M_insert(_Arg&&, const _NodeGenerator&, true_type)): Remove
3342 size_t len parameter.
3343 * include/bits/hashtable_policy.h (_Insert_base<>::_M_insert_range):
3344 Do not try to get input range distance.
3345 * testsuite/23_containers/unordered_set/cons/bucket_hint.cc: New test.
3346 * testsuite/23_containers/unordered_set/modifiers/insert.cc: New test.
3348 2020-07-27 François Dumont <fdumont@gcc.gnu.org>
3350 * include/bits/hashtable_policy.h (_Map_base<>::at): Use
3352 (_Hashtable_base<>::_Equal_hash_code<>::_S_node_equals):New.
3353 (_Hashtable_base<>::_M_node_equals): New, use latter.
3354 (_Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash,
3355 _RehashPolicy, false>::_M_equal): Adapt to use latter.
3356 * include/bits/hashtable.h (_Hashtable<>::_M_update_bbegin): New.
3357 (_Hashtable<>::_M_assign): Use latter.
3358 (_Hashtable<>::_M_move_assign): Likewise.
3359 (_Hashtable<>(_Hashtable<>&&)): Likewise.
3360 (_Hashtable<>(_Hashtable<>&&, const allocator_type&)): Likewise.
3361 (_Hashtable<>::swap): Likewise.
3362 (_Hashtable<>::find): Build iterator directly from _M_find_node result.
3363 (_Hashtable<>::count): Use _Hashtable<>::find.
3364 (_Hashtable<>::equal_range): Likewise.
3365 (_Hashtable<>::_M_erase(false_type, const key_type&)): Use
3368 2020-07-27 Jonathan Wakely <jwakely@redhat.com>
3370 * src/c++17/floating_from_chars.cc (from_chars_impl): Ensure
3371 that FE_NEAREST is used.
3372 * testsuite/20_util/from_chars/4.cc: Do not use if constexpr in
3373 a { target c++14 } test.
3374 [!_GLIBCXX_HAVE_USELOCALE]: Disable all tests.
3375 * testsuite/20_util/from_chars/5.cc [!_GLIBCXX_HAVE_USELOCALE]:
3377 * testsuite/20_util/from_chars/6.cc: New test.
3379 2020-07-22 Jonathan Wakely <jwakely@redhat.com>
3381 * include/std/future (future, shared_future, promise): Add
3382 static assertions to the primary template to reject array and
3384 * testsuite/30_threads/future/requirements/lwg3458.cc: New test.
3385 * testsuite/30_threads/promise/requirements/lwg3466.cc: New test.
3386 * testsuite/30_threads/shared_future/requirements/lwg3458.cc: New test.
3388 2020-07-22 Jonathan Wakely <jwakely@redhat.com>
3390 * include/bits/stl_iterator.h (reverse_iterator): Constrain
3391 converting constructor and converting assignment operator.
3392 Access source iterator's data member directly instead of
3394 (move_iterator): Likewise.
3395 * testsuite/24_iterators/move_iterator/dr3435.cc: New test.
3396 * testsuite/24_iterators/reverse_iterator/dr3435.cc: New test.
3398 2020-07-20 Jonathan Wakely <jwakely@redhat.com>
3400 * acinclude.m4 (libtool_VERSION): Bump version.
3401 * config.h.in: Regenerate.
3402 * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.29 version and new
3404 * config/os/gnu-linux/ldbl-extra.ver: Add _GLIBCXX_LDBL_3.4.29
3405 version and new export.
3406 * configure: Regenerate.
3407 * configure.ac: Check for <xlocale.h> and uselocale.
3408 * crossconfig.m4: Add macro or checks for uselocale.
3409 * include/std/charconv (from_chars): Declare overloads for
3410 float, double, and long double.
3411 * src/c++17/Makefile.am: Add new file.
3412 * src/c++17/Makefile.in: Regenerate.
3413 * src/c++17/floating_from_chars.cc: New file.
3414 (from_chars): Define for float, double, and long double.
3415 * testsuite/20_util/from_chars/1_c++20_neg.cc: Prune extra
3416 diagnostics caused by new overloads.
3417 * testsuite/20_util/from_chars/1_neg.cc: Likewise.
3418 * testsuite/20_util/from_chars/2.cc: Check leading '+'.
3419 * testsuite/20_util/from_chars/4.cc: New test.
3420 * testsuite/20_util/from_chars/5.cc: New test.
3421 * testsuite/util/testsuite_abi.cc: Add new symbol versions.
3423 2020-07-20 Jonathan Wakely <jwakely@redhat.com>
3425 * include/bits/istream.tcc
3426 (basic_istream::get(__streambuf_type&, char_type): Use unsigned
3427 long long for counter and check if it would overflow _M_gcount.
3428 * testsuite/27_io/basic_istream/get/char/lwg3464.cc: New test.
3429 * testsuite/27_io/basic_istream/get/wchar_t/lwg3464.cc: New test.
3431 2020-07-17 Iain Sandoe <iain@sandoe.co.uk>
3433 * include/std/coroutine: Mark the methods of the
3434 trivial awaitables as constexpr.
3436 2020-07-14 David Edelsohn <dje.gcc@gmail.com>
3438 * config/os/aix/t-aix: Set BITS from compiler cpp macro.
3440 2020-07-13 Jonathan Wakely <jwakely@redhat.com>
3444 * include/bits/istream.tcc (basic_istream::ignore(streamsize))
3445 [n == max]: Check overflow conditions on _M_gcount. Rely on
3446 the fact that either EOF or the delimiter was reached.
3447 [n < max]: Check _M_gcount < n before checking for EOF or
3449 (basic_istream::ignore(streamsize, char_type): Likewise.
3450 * src/c++98/compatibility.cc (istream::ignore(streamsize))
3451 (wistream::ignore(streamsize)): Likewise.
3452 * src/c++98/istream.cc (istream::ignore(streamsize, char_type))
3453 (wistream::ignore(streamsize, char_type)): Likewise.
3454 * testsuite/27_io/basic_istream/ignore/char/94749.cc: Check that
3455 delimiter is discarded if the number of characters ignored
3456 doesn't fit in streamsize.
3457 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc:
3459 * testsuite/27_io/basic_istream/ignore/char/96161.cc: New test.
3460 * testsuite/27_io/basic_istream/ignore/wchar_t/96161.cc: New test.
3462 2020-07-08 François Dumont <fdumont@gcc.gnu.org>
3464 * include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept
3465 qualification based only on _Compare one.
3466 * testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add
3468 * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
3470 * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
3472 * testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise.
3474 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
3476 * include/std/limits: Whitespace changes.
3478 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
3480 * include/Makefile.am: Remove bits/int_limits.h.
3481 * include/Makefile.in: Regenerate.
3482 * include/bits/int_limits.h: Removed.
3483 * include/bits/parse_numbers.h (_Select_int_base): Replace
3484 __int_limits with __int_traits.
3485 * include/bits/range_access.h (_SSize::operator()): Likewise.
3486 * include/ext/numeric_traits.h (__numeric_traits_integer): Add
3488 (__int_traits): New alias template.
3489 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
3490 (__countr_zero, __countr_one, __popcount, __bit_ceil)
3491 (__bit_floor, __bit_width) Replace __int_limits with
3493 * include/std/charconv (__to_chars_8, __from_chars_binary)
3494 (__from_chars_alpha_to_num, from_chars): Likewise.
3495 * include/std/memory_resource (polymorphic_allocator::allocate)
3496 (polymorphic_allocator::allocate_object): Likewise.
3497 * include/std/string_view (basic_string_view::_S_compare):
3499 * include/std/utility (cmp_equal, cmp_less, in_range): Likewise.
3501 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
3503 * include/std/limits: Whitespace changes.
3505 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
3507 * include/std/optional (_Optional_payload_base, _Optional_base)
3508 (optional, __optional_hash_call_base): Adjust whitespace and
3509 other formatting. Remove redundant && tokens on template
3510 arguments to type traits.
3512 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
3514 * include/std/optional (make_optional): Add enable_if
3515 constraints and noexcept-specifier to each overload.
3516 * testsuite/20_util/optional/make_optional-2.cc: New test.
3518 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
3521 * include/std/optional (optional): Add noexcept-specifier to
3522 every constructor, assignment operator, emplace function and
3523 dereference operator.
3524 * testsuite/20_util/optional/assignment/noexcept.cc: New test.
3525 * testsuite/20_util/optional/cons/noexcept.cc: New test.
3527 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
3530 * include/bits/fs_dir.h: Use consistent tag in class-head.
3531 * include/bits/localefwd.h: Likewise.
3532 * include/bits/regex.h: Likewise.
3533 * include/bits/stl_map.h: Likewise.
3534 * include/bits/stl_multimap.h: Likewise.
3535 * include/bits/stl_multiset.h: Likewise.
3536 * include/bits/stl_set.h: Likewise.
3537 * include/std/complex: Likewise.
3538 * include/std/functional: Likewise.
3539 * include/std/future: Likewise.
3540 * include/std/system_error: Likewise.
3541 * include/std/thread: Likewise.
3542 * include/std/tuple: Likewise.
3543 * include/std/type_traits: Likewise.
3544 * include/std/valarray: Likewise.
3546 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
3548 * testsuite/27_io/basic_ios/conv/voidptr.cc: Add c++98_only
3551 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
3553 * testsuite/18_support/headers/cstdalign/std_c++0x_neg.cc: Add
3554 c++98_only target selector.
3555 * testsuite/18_support/headers/cstdbool/std_c++0x_neg.cc:
3557 * testsuite/18_support/headers/cstdint/std_c++0x_neg.cc:
3559 * testsuite/18_support/headers/new/synopsis_cxx98.cc: Likewise.
3560 * testsuite/19_diagnostics/headers/system_error/std_c++0x_neg.cc:
3562 * testsuite/20_util/headers/type_traits/std_c++0x_neg.cc:
3564 * testsuite/23_containers/headers/array/std_c++0x_neg.cc:
3566 * testsuite/23_containers/headers/tuple/std_c++0x_neg.cc:
3568 * testsuite/23_containers/headers/unordered_map/std_c++0x_neg.cc:
3570 * testsuite/23_containers/headers/unordered_set/std_c++0x_neg.cc:
3572 * testsuite/26_numerics/headers/ccomplex/std_c++0x_neg.cc:
3574 * testsuite/26_numerics/headers/cfenv/std_c++0x_neg.cc:
3576 * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++98.cc:
3578 * testsuite/26_numerics/headers/ctgmath/std_c++0x_neg.cc:
3580 * testsuite/26_numerics/headers/random/std_c++0x_neg.cc:
3582 * testsuite/27_io/headers/cinttypes/std_c++0x_neg.cc: Likewise.
3583 * testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Likewise.
3584 * testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc:
3586 * testsuite/30_threads/headers/condition_variable/std_c++0x_neg.cc:
3588 * testsuite/30_threads/headers/future/std_c++0x_neg.cc:
3590 * testsuite/30_threads/headers/mutex/std_c++0x_neg.cc: Likewise.
3591 * testsuite/30_threads/headers/thread/std_c++0x_neg.cc:
3594 2020-07-02 Ville Voutilainen <ville.voutilainen@gmail.com>
3597 * include/std/variant
3598 (_Copy_assign_base::operator=(const _Copy_assign_base&):
3599 Do the move-assignment from a temporary so that the temporary
3600 is constructed with an explicit index.
3601 * testsuite/20_util/variant/91807.cc: New.
3603 2020-07-02 Jonathan Wakely <jwakely.gcc@gmail.com>
3607 * testsuite/29_atomics/atomic_float/1.cc: Use different values
3609 * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
3611 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
3614 * include/bits/regex.h (operator==, operator!=): Remove noexcept
3615 equality comparisons for match_results.
3616 * testsuite/28_regex/match_results/94627.cc: New test.
3618 2020-07-01 Martin Sebor <msebor@redhat.com>
3620 * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: Adjust
3621 text of expected warning.
3622 * testsuite/21_strings/basic_string_view/cons/wchar_t/nonnull.cc: Same.
3623 * testsuite/21_strings/basic_string_view/operations/compare/char/nonnull.cc: Same.
3624 * testsuite/21_strings/basic_string_view/operations/find/char/nonnull.cc: Same.
3625 * testsuite/21_strings/basic_string_view/operations/rfind/char/nonnull.cc: Same.
3627 2020-06-29 Ville Voutilainen <ville.voutilainen@gmail.com>
3630 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
3632 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
3633 Add a __nonnull__ attribute.
3634 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
3635 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
3637 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
3639 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
3640 Add a __nonnull__ attribute.
3641 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
3642 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
3644 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
3647 * include/std/type_traits (is_literal_type, is_literal_type_v):
3649 * include/std/variant (_Uninitialized):
3650 Adjust the condition and the comment.
3651 * testsuite/20_util/is_literal_type/deprecated-1z.cc: New.
3652 * testsuite/20_util/is_literal_type/requirements/explicit_instantiation.cc:
3654 * testsuite/20_util/is_literal_type/requirements/typedefs.cc: Likewise.
3655 * testsuite/20_util/is_literal_type/value.cc: Likewise.
3656 * testsuite/20_util/optional/constexpr/nullopt.cc:
3657 Use __is_literal_type directly.
3658 * testsuite/20_util/optional/nullopt.cc: Likewise.
3659 * testsuite/20_util/variable_templates_for_traits.cc: Adjust.
3660 * testsuite/20_util/variant/95915.cc: New.
3661 * testsuite/20_util/variant/compile.cc: Add new test.
3662 * testsuite/experimental/optional/constexpr/nullopt.cc:
3663 Use __is_literal_type directly.
3664 * testsuite/experimental/optional/nullopt.cc: Likewise.
3665 * testsuite/experimental/type_traits/value.cc: Adjust.
3666 * testsuite/util/testsuite_common_types.h:
3667 Use __is_literal_type directly.
3669 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
3671 * include/std/charconv (__from_chars_binary): Ignore leading zeros.
3672 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
3674 * testsuite/20_util/from_chars/3.cc: New test.
3676 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
3678 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
3679 * include/std/charconv (__detail::__to_chars): Avoid
3680 -Wsign-compare warning.
3682 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
3685 * include/std/charconv (__to_chars_i): Check for zero-sized
3686 buffer unconditionally.
3687 * testsuite/20_util/to_chars/95851.cc: New test.
3689 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
3691 * testsuite/20_util/from_chars/1_c++20_neg.cc: Check enumeration
3693 * testsuite/20_util/from_chars/1_neg.cc: Likewise. Move dg-error
3694 directives outside preprocessor condition.
3696 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
3699 * include/std/variant (__detail::__variant::_Build_FUN): Remove
3700 partial specialization to prevent narrowing conversions to bool.
3701 * testsuite/20_util/variant/compile.cc: Test non-narrowing
3702 conversions to bool.
3703 * testsuite/20_util/variant/run.cc: Likewise.
3705 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
3707 * doc/Makefile.in: Regenerate.
3708 * include/Makefile.in: Regenerate.
3709 * libsupc++/Makefile.in: Regenerate.
3710 * po/Makefile.in: Regenerate.
3711 * python/Makefile.in: Regenerate.
3712 * src/Makefile.in: Regenerate.
3713 * src/c++11/Makefile.in: Regenerate.
3714 * src/c++17/Makefile.in: Regenerate.
3715 * src/c++98/Makefile.in: Regenerate.
3716 * src/filesystem/Makefile.in: Regenerate.
3717 * testsuite/Makefile.in: Regenerate.
3719 2020-06-22 David Edelsohn <dje.gcc@gmail.com>
3721 * Makefile.am: Use -include.
3722 * Makefile.in: Regenerate.
3724 2020-06-21 David Edelsohn <dje.gcc@gmail.com>
3726 * Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
3727 * Makefile.in: Regenerate.
3728 * configure.ac (tmake_file): Substitute.
3729 * configure: Regenerate.
3730 * configure.host (aix*): Define tmake_file.
3731 * config/os/aix/t-aix: New file.
3733 2020-06-20 Jason Merrill <jason@redhat.com>
3735 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
3736 Remove greedy_ops tests.
3737 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
3738 Remove greedy_ops tests.
3740 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
3743 * include/bits/stl_algobase.h (__size_to_integer(float))
3744 (__size_to_integer(double), __size_to_integer(long double))
3745 (__size_to_integer(__float128)): Cast return type explicitly.
3746 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
3747 Remove unused typedef.
3749 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
3751 * include/bits/stl_pair.h (_Index_tuple): Remove redundant
3752 namespace qualification.
3753 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
3755 * include/std/tuple (_Head_base, _Tuple_impl, tuple_size)
3756 (tuple_element, __get_helper, get, __make_tuple_impl)
3757 (__make_1st_indices, __tuple_concater)
3758 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
3760 * include/std/utility (tuple_element, __is_tuple_like_impl)
3761 (tuple_size, __pair_get, get): Likewise.
3763 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
3765 * include/bits/std_function.h (function): Define all member
3768 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
3770 * include/bits/stl_algo.h (__includes): Simplify the code.
3772 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
3774 * include/std/optional (optional()): Explicitly define it.
3776 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
3779 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
3780 Construct the first value at *__first instead of on the stack.
3781 (__uninitialized_default_n_1<true>): Likewise.
3782 Improve comments on several of the non-standard algorithms.
3783 * testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc:
3785 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc:
3787 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc:
3789 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc:
3791 * testsuite/23_containers/vector/cons/94540.cc: New test.
3793 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
3795 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
3796 Replace Value type with int so trivial code path is used.
3797 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
3800 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
3802 * include/bits/stl_uninitialized.h (uninitialized_fill_n): Only
3803 use std::fill_n when the size is an integral type.
3804 (__uninitialized_default_n): Likewise.
3805 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
3807 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
3809 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
3812 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
3815 * include/bits/atomic_base.h (__atomic_impl::load): Use the _Val
3816 alias instead of deducing _Tp as an unqualified type.
3817 (__atomic_impl::exchange): Use the _Val alias to remove volatile
3818 from the reinterpret_cast result type.
3820 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
3822 * include/std/atomic (atomic): Add static assertions.
3823 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
3825 2020-06-16 Patrick Palka <ppalka@redhat.com>
3828 * testsuite/20_util/is_constructible/94003.cc: New test.
3830 2020-06-15 Jonathan Wakely <jwakely@redhat.com>
3832 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
3833 Update value for C++20.
3834 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
3835 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
3836 Update expected value.
3837 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
3840 2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
3842 * include/bits/char_traits.h (char_traits::move): constexpr move with
3843 overlap was using copy_backward incorrectly.
3844 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
3847 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
3849 * testsuite/29_atomics/atomic_flag/clear/1.cc: Also test clear()
3850 when the value is currently set.
3851 * testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc:
3852 Actually check the return value.
3853 * testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc:
3856 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
3858 * include/bits/atomic_base.h (atomic_flag::test): Add missing
3860 * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
3861 dg-options and verify results of test function.
3862 * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
3864 2020-06-11 Jonathan Wakely <jwakely@redhat.com>
3867 * include/bits/istream.tcc (basic_istream::ignore(streamsize, CharT)):
3868 Only discard an extra character if we didn't already reach the
3870 * src/c++98/istream.cc (istream::ignore(streamsiz, char))
3871 (wistream::ignore(streamsize, wchar_t)): Likewise.
3872 * testsuite/27_io/basic_istream/ignore/char/94749.cc: New test.
3873 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc: New test.
3875 2020-06-10 Patrick Palka <ppalka@redhat.com>
3878 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
3879 Also check that the iterator and sentinel have the same type before
3880 applying the unwrapping optimization for __normal_iterator.
3881 Split the check into two, one for the first iterator/sentinel
3882 pair and another for second iterator/sentinel pair. Remove uses
3883 of __niter_base, and remove uses of std::move on a
3885 * include/bits/ranges_algobase.h (__equal_fn): Likewise.
3886 (__copy_or_move): Likewise. Perform similar adjustments for
3887 the reverse_iterator and move_iterator optimizations. Inline
3888 the checks into the if-constexprs, and use using-declarations to
3889 make them less visually noisy. Remove uses of __niter_wrap.
3890 (__copy_or_move_backward): Likewise.
3891 * testsuite/25_algorithms/copy/95578.cc: New test.
3892 * testsuite/25_algorithms/copy_backward/95578.cc: New test.
3893 * testsuite/25_algorithms/equal/95578.cc: New test.
3894 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
3895 * testsuite/25_algorithms/move/95578.cc: New test.
3896 * testsuite/25_algorithms/move_backward/95578.cc: New test.
3898 2020-06-10 François Dumont <fdumont@gcc.gnu.org>
3899 Jonathan Wakely <jwakely@redhat.com>
3901 * include/bits/deque.tcc (__lex_cmp_dit): New.
3902 (__lexicographical_compare_aux1): Define overloads for deque
3904 * include/bits/stl_algobase.h (__lexicographical_compare::__3way):
3905 New static member function.
3906 (__lexicographical_compare<true>::__3way): Likewise.
3907 (__lexicographical_compare<true>::__lc): Use __3way.
3908 (__lexicographical_compare_aux): Rename to
3909 __lexicographical_compare_aux1 and declare overloads for deque
3911 (__lexicographical_compare_aux): Define new forwarding function
3912 that calls __lexicographical_compare_aux1 and declare new overloads
3914 (lexicographical_compare): Do not use __niter_base on
3916 * include/debug/safe_iterator.tcc
3917 (__lexicographical_compare_aux): Define overloads for safe
3919 * testsuite/25_algorithms/lexicographical_compare/1.cc: Add
3920 checks with random access iterators.
3921 * testsuite/25_algorithms/lexicographical_compare/deque_iterators/1.cc:
3924 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
3926 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
3927 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
3929 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
3931 * include/std/optional (bad_optional_access): Define default
3932 constructor and destructor as defaulted.
3933 * testsuite/20_util/optional/bad_access.cc: New test.
3935 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
3937 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
3939 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
3941 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
3943 * include/bits/unique_ptr.h (operator<<): Define for C++20.
3944 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
3946 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
3948 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
3949 (__detail::__cat, __detail::__diff): Move to class scope in the
3950 relevant __iterator_traits specializations.
3951 (__iterator_traits<>): Use nested class templates instead of ones from
3953 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
3954 class scope in iterator_traits<common_iterator<I, S>>.
3955 (iterator_traits<common_iterator<I, S>>): Use nested class template
3956 instead of __detail::__common_iter_ptr.
3958 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
3960 * include/bits/stl_algo.h (__copy_n_a): Move to ...
3961 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
3963 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
3965 (__niter_base(const _Safe_iterator<_Ite, _Seq,
3966 random_access_iterator_tag>&)): Declare.
3967 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
3968 _Deque_iterator<>)): Declare.
3969 * include/bits/deque.tcc
3970 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
3971 _Deque_iterator<>)): New.
3972 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
3974 * include/bits/streambuf_iterator.h
3975 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
3976 * include/debug/safe_iterator.tcc (__niter_base): New.
3977 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
3979 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
3981 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
3983 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
3984 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
3987 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
3989 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
3990 ranges::copy for positive values.
3991 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
3992 integral type and only call __copy_n for positive values.
3993 * testsuite/util/testsuite_iterators.h
3994 (random_access_iterator_wrapper::operator+=): Fix range check for
3996 (output_container, input_container, forward_container)
3997 (bidirectional_container, random_access_container): New alias
3999 * testsuite/25_algorithms/copy_n/5.cc: New test.
4001 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
4004 * include/debug/deque (deque(const _Base&)): Replace parameter
4005 with a struct that wraps a const _Base&.
4006 * include/debug/forward_list (forward_list(_Base_ref)): New
4008 * include/debug/list (list(const _Base&)): Replace parameter
4009 with a struct that wraps a const _Base&.
4010 * include/debug/map.h (map(const _Base&)): Likewise.
4011 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
4012 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
4013 * include/debug/set.h (set(const _Base&)): Likewise.
4014 * include/debug/unordered_map (unordered_map(const _Base&))
4015 (unordered_multimap(const _Base&)): Likewise.
4016 * include/debug/unordered_set (unordered_set(const _Base&))
4017 (unordered_multiset(const _Base&)): Likewise.
4018 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
4019 Adjust dg-error line number.
4020 * include/debug/vector (vector(const _Base&)): Likewise.
4021 * testsuite/23_containers/deque/debug/90102.cc: New test.
4022 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
4023 * testsuite/23_containers/list/debug/90102.cc: New test.
4024 * testsuite/23_containers/map/debug/90102.cc: New test.
4025 * testsuite/23_containers/multimap/debug/90102.cc: New test.
4026 * testsuite/23_containers/multiset/debug/90102.cc: New test.
4027 * testsuite/23_containers/set/debug/90102.cc: New test.
4028 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
4029 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
4030 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
4031 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
4032 * testsuite/23_containers/vector/debug/90102.cc: New test.
4034 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
4037 * include/bits/fs_path.h (path::_S_to_string): Move to
4038 namespace-scope and rename to ...
4039 (__detail::__string_from_range): ... this.
4040 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
4041 convert a char sequence containing UTF-8 to wstring.
4042 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
4043 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
4044 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
4045 __string_from_range to obtain a contiguous range and
4046 __wstr_from_utf8 to obtain a wide string.
4047 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
4048 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
4050 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
4051 Use __wstr_from_utf8.
4053 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
4055 * testsuite/util/testsuite_iterators.h:
4056 (input_iterator_wrapper::operator++(int)): Return proxy object.
4058 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
4060 * doc/xml/manual/evolution.xml: Document deprecation of
4061 __is_nullptr_t and removal of std::allocator members.
4062 * doc/html/manual/api.html: Regenerate.
4064 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
4066 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
4067 * doc/xml/manual/evolution.xml: Likewise.
4068 * doc/html/manual/api.html: Regenerate.
4069 * doc/html/manual/containers.html: Regenerate.
4071 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
4073 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
4074 * doc/html/faq.html: Regenerate.
4076 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
4078 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
4081 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
4083 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
4084 www.cs.princeton.edu to https.
4085 * doc/html/manual/policy_data_structures.html: Regenerate.
4087 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
4089 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
4090 * configure: Rebuild.
4092 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
4095 * configure: Regenerated.
4097 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
4100 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
4101 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
4102 (unordered_map<>::insert_or_assign): Adapt.
4104 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
4107 * include/bits/atomic_base.h (__atomic_impl::load): Add
4108 cv-qualifiers to parameter so that _Tp is deduced as the
4110 * testsuite/29_atomics/atomic_float/95282.cc: New test.
4112 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
4115 * include/std/ranges (transform_view::_Sentinel): Allow hidden
4116 friends to work with _Iterator<true> and _Iterator<false>.
4117 (join_view::_Sentinel): Likewise.
4118 * testsuite/std/ranges/adaptors/95322.cc: New test.
4120 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
4123 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
4124 operators to use the correct operations on the underlying
4126 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
4128 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
4130 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
4132 2020-05-26 Patrick Palka <ppalka@redhat.com>
4135 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
4136 Remove and instead define it ...
4137 (common_iterator::_Proxy): ... here.
4138 (common_iterator::operator->): Use it.
4139 * testsuite/24_iterators/common_iterator/2.cc: New test.
4140 * testsuite/std/ranges/adaptors/95322.cc: New test.
4142 2020-05-23 Patrick Palka <ppalka@redhat.com>
4145 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
4146 dg-additional-options. Avoid unused-but-set-variable warning.
4148 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
4151 * include/debug/helper_functions.h (__get_distance): Only declare
4152 as a constexpr function for C++14 and up.
4153 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
4155 * include/bits/fs_path.h (__detail::_S_range_begin)
4156 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
4157 overloaded function template __detail::__effective_range.
4158 (__detail::__effective_range): New overloaded function template to
4159 create a basic_string or basic_string_view for an effective range.
4160 (__detail::__value_type_is_char): Use __detail::__effective_range.
4161 Do not use remove_const on value type.
4162 (__detail::__value_type_is_char_or_char8_t): Likewise.
4163 (path::path(const Source&, format))
4164 (path::path(const Source&, const locale&))
4165 (path::operator/=(const Source&), path::append(const Source&))
4166 (path::concat(const Source&)): Use __detail::__effective_range.
4167 (path::_S_to_string(InputIterator, InputIterator)): New function
4168 template to create a string view if possible, or string otherwise.
4169 (path::_S_convert): Add overloads that convert a string returned
4170 by __detail::__effective_range. Use if-constexpr to inline conversion
4171 logic from all overloads of _Cvt::_S_convert.
4172 (path::_S_convert_loc): Add overload that converts a string. Use
4173 _S_to_string to avoid allocation when possible.
4174 (path::_Cvt): Remove.
4175 (path::operator+=(CharT)): Remove indirection through path::concat.
4176 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
4177 overload for non-const pointers, to avoid constructing a std::string.
4178 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
4179 compilation with call to _S_convert.
4181 * include/bits/fs_path.h (__detail::_S_range_begin)
4182 (__detail::_S_range_end): Remove unintentional static specifiers.
4183 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
4184 (__detail::_S_range_end): Likewise.
4186 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
4187 Replace alias template with variable template. Don't remove const.
4188 (filesystem::__detail::__is_path_src): Replace overloaded function
4189 template with variable template and specializations.
4190 (filesystem::__detail::__is_path_iter_src): Replace alias template
4191 with class template.
4192 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
4194 (filesystem::__detail::_Path2): New alias template for checking
4195 InputIterator requirements.
4196 (filesystem::__detail::__constructible_from): Remove.
4197 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
4198 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
4199 constructor arguments of void and void* types.
4201 2020-05-21 Matthias Kretz <kretz@kde.org>
4203 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
4204 allowing runtest to work without arguments.
4205 * testsuite/Makefile.in: Regenerate.
4207 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
4210 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
4211 Reorder constraints to avoid recursion when constructors use
4212 iterator_traits (LWG 3420).
4213 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
4215 * include/experimental/socket (basic_socket::is_open()
4216 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
4218 * include/experimental/bits/net.h (__endpoint, __protocol)
4219 (__acceptable_protocol, __inet_protocol): New concepts.
4220 (__detail::__is_endpoint): Move trait from <experimental/socket>.
4221 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
4223 (__endpoint, __protocol, __acceptable_protocol): New variable
4225 * include/experimental/socket (__is_endpoint): Move to net.h header.
4226 (basic_socket, basic_socket_acceptor): Check requirements.
4228 * include/experimental/executor (use_future_t::use_future_t()): Fix
4229 incorrect noexcept-specifier.
4230 * include/experimental/internet (basic_resolver_results): Adjust
4232 * include/experimental/socket (__basic_socket_impl::release): Add
4234 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
4236 (basic_socket::release(), basic_socket::release(error_code&)): Add
4237 missing member functions.
4238 (basic_socket::is_open()): Add nodiscard attribute.
4239 (basic_socket::close(error_code&)): Pass argument to base function.
4240 (basic_socket_acceptor::release())
4241 (basic_socket_acceptor::release(error_code&)): Add missing member
4243 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
4244 (basic_socket_streambuf::error()): Add noexcept.
4245 (basic_socket_iostream::error()): Likewise.
4246 * testsuite/experimental/net/socket/basic_socket.cc: New test.
4248 * include/experimental/buffer: Replace typedefs with
4250 * include/experimental/executor: Likewise.
4251 * include/experimental/internet: Likewise.
4252 * include/experimental/socket: Likewise.
4253 * include/experimental/timer: Likewise.
4255 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
4258 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
4260 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
4262 (random_device::_M_init): Use __x86_rdseed_rdrand when both
4263 instructions are available.
4264 * testsuite/26_numerics/random/random_device/94087.cc: New test.
4266 2020-05-19 Patrick Palka <ppalka@redhat.com>
4269 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
4271 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
4273 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
4276 * configure: Regenerated.
4278 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
4280 * configure: Regenerated.
4282 2020-05-13 Alexandre Oliva <oliva@adacore.com>
4285 * include/experimental/memory_resource
4286 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
4287 x86-vxworks as on x86-solaris.
4288 (__resource_adaptor_imp::do_deallocate): Likewise.
4289 * testsuite/experimental/memory_resource/new_delete_resource.cc:
4291 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
4292 (test03): Drop max-align test for char-aligned alloc.
4294 2020-05-08 Ulrich Drepper <drepper@redhat.com>
4296 * include/bits/atomic_base.h (atomic_flag): Implement test member
4298 * include/std/version: Define __cpp_lib_atomic_flag_test.
4299 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
4300 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
4302 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
4304 PR libstdc++/94971 (partial)
4305 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
4306 std::sample using macro to work in parallel mode.
4307 (__sort_fn): Likewise for std::sort.
4308 (ranges::__nth_element_fn): Likewise for std::nth_element.
4309 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
4310 Likewise for std::__min_cmp.
4311 * include/parallel/algobase.h (lexicographical_compare_three_way):
4312 Add to namespace std::__parallel.
4315 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
4316 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
4317 (_UnguardedIterator::operator _RAIter): Add const qualifier.
4318 (operator<(_GuardedIterator&, _GuardedIterator&)
4319 (operator<=(_GuardedIterator&, _GuardedIterator&)
4320 (operator<(_UnguardedIterator&, _UnguardedIterator&)
4321 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
4322 parameters to const references.
4324 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
4326 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
4327 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
4329 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
4331 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
4332 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
4333 * include/bits/stl_bvector.h (__fill_bvector): Move outside
4334 _GLIBCXX_STD_C namespace.
4335 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
4337 (__fill_a1): ...this.
4338 * testsuite/25_algorithms/fill/bvector/1.cc: New.
4340 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
4342 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
4344 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
4346 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
4347 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
4349 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
4350 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
4353 2020-05-06 Martin Liska <mliska@suse.cz>
4356 2020-05-05 Martin Liska <mliska@suse.cz>
4358 * include/parallel/multiway_merge.h:
4359 Use const for _Compare template argument.
4361 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
4363 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
4364 versions for GCC 9.[123] and 10.1 releases.
4365 * doc/html/*: Regenerate.
4367 2020-05-06 Jakub Jelinek <jakub@redhat.com>
4369 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
4370 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
4371 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
4372 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
4373 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
4374 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
4375 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
4377 2020-05-05 Martin Liska <mliska@suse.cz>
4380 * include/parallel/multiway_merge.h:
4381 Use const for _Compare template argument.
4383 2020-05-04 Fangrui Song <maskray@google.com>
4385 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
4387 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
4389 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
4390 * doc/html/*: Regenerate.
4393 * src/c++17/memory_resource.cc
4394 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
4397 2020-05-04 Nathan Sidwell <nathan@acm.org>
4400 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
4401 ptrdiff_t before negation, to show intent more clearly.
4403 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
4406 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
4407 Add comment about single-threaded behaviour.
4408 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
4409 class member access out of loop.
4410 (synchronized_pool_resource::synchronized_pool_resource())
4411 (synchronized_pool_resource::~synchronized_pool_resource())
4412 (synchronized_pool_resource::release()): Check __gthread_active_p
4413 before creating and/or deleting the thread-specific data key.
4414 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
4416 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
4417 path for single-threaded case.
4418 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
4419 Likewise. Return if unable to find a pool that owns the allocation.
4420 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
4422 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
4424 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
4427 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
4430 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
4431 usable in constant expressions.
4432 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
4435 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
4438 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
4440 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
4441 Patrick Palka <ppalka@redhat.com>
4444 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
4445 Add trait to determine return type and an alias for it.
4446 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
4447 deduced return type.
4448 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
4449 the result of ranges::iter_move.
4450 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
4451 instead of checking the result of ranges::iter_move.
4452 * testsuite/24_iterators/customization_points/92894.cc: New test.
4453 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
4455 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
4458 * include/std/type_traits (__is_complete_or_unbounded): Replace
4459 BADNAME _T with _Tp.
4460 * testsuite/17_intro/badnames.cc: New test.
4462 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
4465 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
4466 (allocator_traits::_S_destroy)
4467 (allocator_traits<allocator<T>>::construct): Use traits in
4468 noexcept-specifiers.
4469 * include/bits/allocator.h (allocator<void>::construct)
4470 (allocator<void>::destroy): Likewise.
4471 * include/ext/malloc_allocator.h (malloc_allocator::construct)
4472 (malloc_allocator::destroy): Likewise.
4473 * include/ext/new_allocator.h (new_allocator::construct)
4474 (new_allocator::destroy): Likewise.
4475 * testsuite/20_util/allocator/89510.cc: New test.
4476 * testsuite/ext/malloc_allocator/89510.cc: New test.
4477 * testsuite/ext/new_allocator/89510.cc: New test.
4479 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
4482 * include/bits/basic_string.tcc: Update comment about explicit
4485 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
4488 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
4489 Remove non-standard macro.
4490 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
4491 to indicate P1032R1 support.
4492 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
4493 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
4494 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
4495 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
4496 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
4497 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
4498 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
4500 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
4501 * testsuite/21_strings/basic_string_view/operations/copy/char/
4502 constexpr.cc: Likewise.
4503 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
4506 * include/bits/alloc_traits.h (_S_construct): Restore placement
4507 new-expression for C++11/14/17 and call std::construct_at directly
4509 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
4510 function returning void.
4511 * testsuite/20_util/specialized_algorithms/
4512 uninitialized_value_construct/94831.cc: New test.
4513 * testsuite/23_containers/vector/cons/94831.cc: New test.
4515 2020-04-28 Patrick Palka <ppalka@redhat.com>
4517 LWG 3433 subrange::advance(n) has UB when n < 0
4518 * include/std/ranges (subrange::prev): Fix typo.
4519 (subrange::advance): Handle a negative argument as per the proposed
4520 resolution of LWG 3433.
4521 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
4523 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
4524 Iain Sandoe <iain@sandoe.co.uk>
4527 * include/std/coroutine: Implement handing for non-
4528 class coroutine return types.
4530 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
4532 * include/experimental/executor (service_already_exists): Make default
4533 constructor public (LWG 3414).
4534 * testsuite/experimental/net/execution_context/make_service.cc: Check
4535 the service_already_exists can be default constructed.
4537 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
4538 Jonathan Wakely <jwakely@redhat.com>
4542 * include/std/any (any): Rename template parameters for consistency
4544 (any::_Decay): Rename to _Decay_if_not_any.
4545 (any::any(T&&):: Remove is_constructible from constraints. Remove
4546 non-standard overload.
4547 (any::any(in_place_type_t<T>, Args&&...))
4548 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
4549 (any::emplace(Args&&...))
4550 (any::emplace(initializer_list<U>, Args&&...)):
4551 Use decay_t instead of _Decay.
4552 * testsuite/20_util/any/cons/90415.cc: New test.
4553 * testsuite/20_util/any/cons/92156.cc: New Test.
4554 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
4556 * testsuite/20_util/any/modifiers/92156.cc: New test.
4558 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
4560 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
4561 * doc/html/*: Regenerate.
4563 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
4564 value for C++17 to 201803L because P0858R0 is supported for C++17.
4565 * include/std/version (__cpp_lib_array_constexpr): Likewise.
4566 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
4567 Check for value corresponding to P0031R0 features being tested.
4568 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
4569 Check for value corresponding to P0858R0 features being tested.
4571 * include/std/version (__cpp_lib_three_way_comparison): Define for
4572 freestanding builds.
4574 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
4576 * include/experimental/net/executor (system_context): Mark
4577 system_context::system_context() = delete.
4578 * testsuite/experimental/net/executor/1.cc: Add new
4579 test to check system_context is not default constructible.
4581 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
4583 * include/std/coroutine: Update the inline namespace to __n4861.
4584 Add the __cpp_lib_coroutine define, set to 201902L.
4585 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
4587 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
4589 * include/std/execution (__cpp_lib_execution): Define to indicate
4590 support for P0024R2 and P1001R2.
4591 * include/std/version (__cpp_lib_execution): Define.
4592 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
4593 defined by <algorithm>, move other tests to new tests ...
4594 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
4595 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
4596 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
4597 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
4599 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
4600 different values for C++17 and C++20, to indicate different feature
4601 sets. Update value for C++20 to indicate P1032R1 support.
4602 * include/std/version (__cpp_lib_array_constexpr): Likewise.
4603 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
4604 Check feature test macro.
4605 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
4607 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
4609 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
4610 in C++17 mode and check feature test macro.
4612 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
4614 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
4615 defined by <utility>.
4617 * include/std/functional (__cpp_lib_concepts): Update macro value to
4618 indicate P1964R2 support.
4619 * include/std/version (__cpp_lib_concepts): Likewise.
4620 * testsuite/std/concepts/1.cc: Adjust expected value.
4621 * testsuite/std/concepts/2.cc: Likewise.
4623 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
4624 __cpp_lib_constexpr_functional.
4625 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
4626 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
4628 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
4629 indicate P1006R1 support.
4630 (__cpp_lib_to_address): Define to indicate P0653R2 support.
4631 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
4633 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
4635 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
4637 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
4639 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
4640 Define to indicate P0339R6 support.
4641 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
4642 indicate P0457R2 support.
4643 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
4644 to indicate P0758R1 support.
4645 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
4646 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
4647 * include/std/version (__cpp_lib_atomic_float)
4648 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
4649 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
4650 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
4651 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
4652 (__cpp_lib_to_address): Define.
4653 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
4655 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
4657 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
4659 * include/std/version (__cpp_lib_map_insertion)
4660 (__cpp_lib_unordered_map_insertion): Remove.
4662 * include/std/condition_variable (__cpp_lib_jthread): Remove
4663 redundant definition.
4664 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
4665 indicate P1869R1 support.
4666 * include/std/version (__cpp_lib_jthread): Update value.
4667 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
4668 for updated macro value.
4669 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
4671 * testsuite/30_threads/jthread/1.cc: Likewise.
4672 * testsuite/30_threads/jthread/2.cc: Likewise.
4673 * testsuite/30_threads/stop_token/1.cc: Likewise.
4674 * testsuite/30_threads/stop_token/2.cc: Likewise.
4676 * testsuite/21_strings/basic_string/erasure.cc: Check for
4677 __cpp_lib_erase_if macro.
4678 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
4680 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
4681 * testsuite/23_containers/list/erasure.cc: Likewise.
4682 * testsuite/23_containers/map/erasure.cc: Likewise.
4683 * testsuite/23_containers/set/erasure.cc: Likewise.
4684 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
4685 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
4686 * testsuite/23_containers/vector/erasure.cc: Likewise.
4688 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
4690 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
4691 to define operator<=>.
4692 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
4694 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
4695 * doc/Makefile.in: Regenerate.
4696 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
4698 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
4699 to the C++11 status table.
4700 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
4701 proposals with table matching contents of the C++14 standard.
4702 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
4704 * doc/html/*: Regenerate.
4707 * include/std/type_traits (__is_nt_constructible_impl): Add partial
4708 specializations for bounded arrays with non-empty initializers.
4709 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
4711 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
4713 * testsuite/lib/libstdc++.exp: Add additional_flags=
4714 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
4715 compiling with a newer Thread Building Blocks.
4717 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
4719 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
4721 * testsuite/20_util/is_constructible/51185.cc: Make test class a
4722 non-aggregate so that the test verifies the same thing in all -std
4724 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
4725 results for some types when paren-init for aggregates is supported.
4727 * include/std/version (__cpp_lib_three_way_comparison): Update value.
4728 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
4729 (__detail::__synth3way): Add noexcept-specifier.
4731 * include/bits/stl_map.h (map): Define operator<=> and remove
4732 operator< for C++20.
4733 * include/bits/stl_multimap.h (multimap): Likewise.
4734 * include/bits/stl_multiset.h (multiset): Likewise.
4735 * include/bits/stl_set.h (set): Likewise.
4736 * include/bits/stl_tree.h (_Rb_tree): Likewise.
4737 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
4738 operator!= for C++20.
4739 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
4740 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
4741 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
4742 * include/debug/set.h (__gnu_debug::set): Likewise.
4743 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
4744 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
4745 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
4746 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
4748 2020-04-20 Matthias Kretz <kretz@kde.org>
4750 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
4752 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
4754 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
4755 * include/bits/stl_stack.h (stack): Likewise.
4756 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
4757 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
4759 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
4760 Remove redundant operator!= for C++20.
4761 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
4763 * include/debug/unordered_map (unordered_map, unordered_multimap):
4765 * include/debug/unordered_set (unordered_set, unordered_multiset):
4769 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
4770 redundant assignment in constructor.
4772 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
4774 * include/std/chrono (duration, time_point): Define operator<=> and
4775 remove redundant operator!= for C++20.
4776 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
4778 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
4781 * testsuite/util/native_type/native_priority_queue.hpp: Use
4782 allocator_traits to rebind allocator.
4784 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
4786 * include/bits/forward_list.h (forward_list): Define operator<=> and
4787 remove redundant comparison operators for C++20.
4788 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
4789 * include/bits/stl_deque.h (deque): Likewise.
4790 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
4791 * include/bits/stl_list.h (list): Likewise.
4792 * include/bits/stl_vector.h (vector): Likewise.
4793 * include/debug/deque (__gnu_debug::deque): Likewise.
4794 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
4795 * include/debug/list (__gnu_debug::list): Likewise.
4796 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
4798 * include/debug/vector (__gnu_debug::vector): Likewise.
4799 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
4800 operator<=> for C++20.
4801 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
4802 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
4803 * testsuite/23_containers/list/cmp_c++20.cc: New test.
4804 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
4805 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
4807 * include/bits/basic_string.h (basic_string): Define operator<=> and
4808 remove redundant comparison operators for C++20.
4809 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
4810 Add comparison_category members.
4811 (__detail::__char_traits_cmp_cat): New helper to get comparison
4812 category from char traits class.
4813 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
4815 (sub_match): Define operator<=> and remove redundant comparison
4816 operators for C++20.
4817 (match_results): Remove redundant operator!= for C++20.
4818 * include/std/string_view (basic_string_view): Define operator<=> and
4819 remove redundant comparison operators for C++20.
4820 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
4822 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
4824 * testsuite/21_strings/basic_string_view/operations/copy/char/
4825 constexpr.cc: Initialize variable.
4826 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
4827 constexpr.cc: Likewise.
4828 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
4829 dg-do directive and remove comments showing incorrect signatures.
4830 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
4832 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
4834 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
4836 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
4838 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
4840 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
4841 name of unused parameter.
4843 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
4845 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
4846 (directory_entry): Define operator<=> and remove redundant comparison
4847 operators for C++20.
4848 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
4849 * include/bits/fs_path.h (path): Define operator<=> and remove
4850 redundant comparison operators for C++20.
4851 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
4852 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
4853 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
4854 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
4856 * include/bits/allocator.h (operator!=): Do not define for C++20.
4857 * include/bits/locale_classes.h (operator!=): Likewise.
4858 * include/bits/std_function.h (operator==(nullptr_t, const function&))
4859 (operator!=(const function&, nullptr_t))
4860 (operator!=(nullptr_t, const function&)): Likewise.
4861 * include/ext/bitmap_allocator.h (operator!=): Likewise.
4862 * include/ext/debug_allocator.h (operator!=): Likewise.
4863 * include/ext/extptr_allocator.h (operator!=): Likewise.
4864 * include/ext/malloc_allocator.h (operator!=): Likewise.
4865 * include/ext/mt_allocator.h (operator!=): Likewise.
4866 * include/ext/new_allocator.h (operator!=): Likewise.
4867 * include/ext/pool_allocator.h (operator!=): Likewise.
4868 * include/ext/throw_allocator.h (operator!=): Likewise.
4869 * include/std/bitset (bitset::operator!=): Likewise.
4870 * include/std/memory_resource (operator!=): Likewise.
4871 * include/std/scoped_allocator (operator!=): Likewise.
4873 * include/std/typeindex (operator<=>): Define for C++20.
4874 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
4876 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
4878 * libsupc++/compare (compare_three_way): Fix constraint so that
4879 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
4880 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
4884 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
4885 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
4886 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
4887 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
4888 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
4889 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
4893 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
4894 * testsuite/18_support/comparisons/categories/94565.cc: New test.
4896 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
4898 * include/std/coroutine: Update coroutines builtin define,
4901 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
4903 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
4904 (strong_order, weak_order, partial_order): Replace uses of <=> with
4905 compare_three_way function object (LWG 3324).
4906 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
4907 equality operator so that X satisfies three_way_comparable.
4908 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
4910 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
4912 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
4913 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
4914 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
4915 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
4916 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
4918 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
4920 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
4922 * include/std/complex (operator==(const T&, const complex<T>&))
4923 (operator!=(const complex<T>&, const complex<T>&))
4924 (operator!=(const complex<T>&, const T&))
4925 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
4926 * testsuite/26_numerics/slice/compare.cc: New test.
4928 * include/std/charconv (to_chars_result, from_chars_result): Add
4929 defaulted equality comparisons for C++20.
4930 * testsuite/20_util/from_chars/compare.cc: New test.
4931 * testsuite/20_util/to_chars/compare.cc: New test.
4933 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
4936 * include/std/charconv (__integer_to_chars_result_type)
4937 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
4939 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
4940 use of std::string_view with std::string.
4941 * testsuite/20_util/from_chars/2.cc: Likewise.
4942 * testsuite/20_util/to_chars/1.cc: Likewise.
4943 * testsuite/20_util/to_chars/2.cc: Likewise.
4945 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
4948 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
4949 usable in constant expressions for C++20.
4950 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
4951 _GLIBCXX20_CONSTEXPR.
4952 (std::char_traits<char>, std::char_traits<wchar_t>)
4953 (std::char_traits<char8_t>): Make move, copy and assign usable in
4954 constant expressions for C++20.
4955 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
4956 and copy usable in constant expressions for C++20.
4957 * include/std/string_view (basic_string_view::copy): Add
4958 _GLIBCXX20_CONSTEXPR.
4959 * testsuite/21_strings/basic_string_view/operations/copy/char/
4960 constexpr.cc: New test.
4961 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
4962 constexpr.cc: New test.
4964 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
4966 * doc/xml/manual/appendix_contributing.xml: Refer to Git
4967 documentation instead of Subversion. Switch to https.
4968 * doc/html/manual/appendix_contributing.html: Regenerate.
4970 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
4973 * include/bits/ptr_traits.h (__to_address): Add special case for debug
4974 iterators, to avoid dereferenceable check.
4975 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
4976 * testsuite/20_util/to_address/debug.cc: New test.
4978 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
4980 * testsuite/experimental/net/execution_context/use_service.cc:
4981 Require pthread and gthreads.
4983 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
4985 * doc/xml/manual/appendix_free.xml: Move "free books" list from
4987 * doc/html/manual/appendix_free.html: Regenerate.
4989 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
4991 Library-side tests for parenthesized aggregate init
4996 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
4997 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
4998 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
4999 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
5000 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
5001 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
5002 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
5003 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
5004 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
5006 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
5007 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
5008 * testsuite/20_util/variant/92878_92947.cc: Likewise.
5009 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
5011 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
5013 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
5015 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
5017 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
5019 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
5021 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
5022 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
5023 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
5025 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
5026 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
5028 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
5030 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
5032 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
5034 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
5037 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
5039 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
5040 for changes due to parenthesized aggregate-initialization in C++20.
5041 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
5042 with std::chrono::sys_time in C++20.
5044 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
5045 to constrain C++20 versions of comparison operators. Fix backwards
5046 logic of relational operators.
5047 (move_iterator): Use requires-clause to constrain comparison operators
5048 in C++20. Do not declare non-standard same-type overloads for C++20.
5049 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
5050 of comparisons and check using greedy_ops type.
5051 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
5052 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
5053 main function from compile-only test.
5054 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
5056 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
5058 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
5059 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
5060 C++20 concepts are required.
5061 * include/bits/stl_iterator_base_types.h: Likewise.
5062 * include/std/concepts: Likewise.
5063 * include/std/version: Likewise.
5064 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
5067 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
5068 (reverse_iterator::iterator_category): Define for C++20.
5069 (reverse_iterator): Define comparison operators correctly for C++20.
5070 (__normal_iterator): Add constraints to comparison operators for C++20.
5071 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
5072 overload for input iterators.
5073 (move_iterator): Add constraints to comparison operators for C++20.
5074 Define operator<=> for C++20.
5075 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
5076 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
5077 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
5078 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
5080 * include/bits/iterator_concepts.h (__detail::__decay_copy)
5081 (__detail::__member_begin, __detail::__adl_begin): Move here from
5082 <bits/range_access.h>.
5083 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
5084 * bits/range_access.h (__cust_access::__decay_copy)
5085 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
5086 <bits/iterator_concepts.h>.
5087 (ranges::iterator_t): Use __detail::__range_iter_t.
5088 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
5089 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
5090 (front_insert_iterator): Likewise.
5091 (insert_iterator): Implement changes from P0896R4 for C++20.
5092 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
5093 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
5094 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
5095 for inclusion in synopsis_c++20.cc which expects different signatures
5096 for some function templates.
5097 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
5099 * include/std/type_traits (__is_array_convertible): Move definition
5100 to immediately after is_convertible.
5102 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
5104 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
5105 (chrono::months, chrono::sys_days, chrono::local_t)
5106 (chrono::local_time, chrono::local_seconds, chrono::local_days):
5108 (chrono::time_point): Add missing static assert.
5109 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
5110 * testsuite/std/time/clock/file/overview.cc: New test.
5111 * testsuite/std/time/clock/file/members.cc: New test.
5112 * testsuite/std/time/syn_c++20.cc: New test.
5114 2020-03-25 Mike Crowe <mac@mcrowe.com>
5116 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
5118 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
5121 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
5123 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
5124 * include/std/chrono (filesystem::__file_clock): Here.
5125 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
5126 Define public member functions for C++20.
5127 (is_clock, is_clock_v): Define traits for C++20.
5128 * include/std/condition_variable (condition_variable::wait_until): Add
5129 check for valid clock.
5130 * include/std/future (_State_baseV2::wait_until): Likewise.
5131 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
5132 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
5134 * include/std/thread (this_thread::sleep_until): Likewise.
5135 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
5136 slow_clock with new namespace.
5137 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
5139 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
5141 * testsuite/30_threads/future/members/clock_neg.cc: New test.
5142 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
5143 Qualify slow_clock with new namespace.
5144 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
5145 clock_neg.cc: New test.
5146 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
5148 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
5149 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
5151 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
5152 slow_clock with new namespace.
5153 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
5154 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
5156 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
5157 * testsuite/std/time/traits/is_clock.cc: New test.
5158 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
5161 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
5164 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
5165 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
5166 Improve test coverage.
5169 * include/bits/fs_path.h (path::_S_str_convert): Replace first
5170 parameter with basic_string_view so that strings with different
5171 allocators can be accepted.
5172 (path::generic_string<C,T,A>()): Use basic_string object that uses the
5173 right allocator type.
5174 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
5175 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
5178 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
5181 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
5182 (__is_nt_default_constructible_impl): Remove.
5183 (__is_nothrow_default_constructible_impl): Remove.
5184 (__is_nt_constructible_impl): Add bool template parameter. Adjust
5185 partial specializations.
5186 (__is_nothrow_constructible_impl): Replace class template with alias
5188 (is_nothrow_default_constructible): Derive from alias template
5189 __is_nothrow_constructible_impl instead of
5190 __is_nothrow_default_constructible_impl.
5191 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
5193 * include/std/stop_token (stop_token::_Stop_state_ref): Define
5194 comparison operators explicitly if the compiler won't synthesize them.
5196 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
5197 __cpp_lib_concepts before using iter_reference_t.
5198 * include/bits/stream_iterator.h (istream_iterator): Check
5199 __cpp_lib_concepts before using default_sentinel_t.
5200 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
5203 * include/experimental/executor (executor::executor(Executor)): Call
5204 make_shared directly instead of _M_create. Create _Tgt1 object.
5205 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
5206 Call allocate_shared directly instead of _M_create. Create _Tgt2
5208 (executor::target_type): Add cast needed for new _Tgt interface.
5209 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
5210 (executor::_Tgt): Define the same interface whether RTTI is enabled or
5212 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
5213 std::type_info in the interface.
5214 (executor::_Tgt::_M_func): Add data member.
5215 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
5216 (executor::_Tgt1::_S_func): Define function to access target without
5218 (executor::_M_create): Remove.
5219 (operator==, operator!=): Simplify comparisons for executor.
5220 * include/experimental/socket (is_error_code_enum<socket_errc>):
5221 Define specialization before use.
5222 * testsuite/experimental/net/executor/1.cc: New test.
5224 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
5227 * include/experimental/executor (service_already_exists): Add default
5228 constructor. Declare make_service to be a friend.
5229 * testsuite/experimental/net/execution_context/make_service.cc: New
5232 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
5234 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
5235 a null pointer to functions with nonnull(1) attribute.
5237 2020-03-11 Patrick Palka <ppalka@redhat.com>
5239 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
5240 'address' -> 'std::__addressof'.
5241 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
5242 a non-forward input_range.
5243 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
5244 default constructor protected instead of deleted, like with
5245 input_iterator_wrapper.
5246 (test_range::iterator): Add comment explaining that this type is used
5247 only when the underlying wrapper is input_iterator_wrapper or
5248 output_iterator_wrapper. Remove delegating defaulted constructor so
5249 that the inherited default constructor is used instead.
5251 LWG 3286 ranges::size is not required to be valid after a call to
5252 ranges::begin on an input range
5253 * include/std/ranges (subrange::subrange): Split single-argument
5254 constructor into two, one constrained by _S_store_size and another by
5256 (take_view::begin): Call size() before calling ranges::begin(_M_base).
5257 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
5258 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
5260 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
5262 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
5263 instead of _M_current.
5264 (split_view::_OuterIter::operator++): Likewise.
5266 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
5267 (transform_view::_Iterator::operator*): Add noexcept-specifier.
5268 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
5269 (split_view::_OuterIter::__current): Add noexcept.
5270 (split_view::_InnerIter::__iter_swap): Remove.
5271 (split_view::_InnerIter::__iter_move): Remove.
5272 (split_view::_InnerIter::_M_i_current): New accessors.
5273 (split_view::_InnerIter::__at_end): Use _M_i_current().
5274 (split_view::_InnerIter::operator*): Likewise.
5275 (split_view::_InnerIter::operator++): Likewise.
5276 (iter_move(const _InnerIter&)): Likewise.
5277 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
5278 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
5279 for iter_move and iter_swap on split_view's inner iterator.
5282 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
5283 Change expression in noexcept-specifier to match function body.
5285 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
5286 comment explaining multiple dg-do directives.
5287 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
5288 so test is run as well as compiled.
5290 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
5293 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
5294 handle concatenations that change the type of the first component.
5295 (path::operator+=(basic_string_view<value_type>)): Likewise.
5296 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
5298 2020-03-06 Patrick Palka <ppalka@redhat.com>
5300 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
5301 join_view::_Sentinel<!_Const>.
5302 * testsuite/std/ranges/adaptors/join.cc: Augment test.
5305 * include/bits/range_access.h (__cust_access::_Empty::operator()):
5306 Declare return type to be bool instead of auto.
5307 * testsuite/std/ranges/adaptors/93978.cc: New test.
5309 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
5312 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
5313 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
5314 second argument to __glibcxx_rwlock_init.
5315 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
5318 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
5319 test to not fail due to PR 94063.
5320 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
5321 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
5323 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
5325 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
5328 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
5330 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
5331 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
5332 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
5333 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
5334 for return value, and in comparison.
5335 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
5338 * include/std/string_view: Include <bits/ostream_insert.h>.
5339 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
5341 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
5343 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
5345 2020-03-04 Patrick Palka <ppalka@redhat.com>
5348 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
5349 condition for when to use memset, making sure to additionally check that
5350 the output pointer's value type is a non-volatile byte type. Instead of
5351 requiring that the fill type is a byte type, just require that it's an
5353 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
5355 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
5357 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
5358 blocked by PR 94017.
5359 * testsuite/25_algorithms/fill/94017.cc: New test.
5360 * testsuite/25_algorithms/fill_n/94017.cc: New test.
5362 LWG 3355 The memory algorithms should support move-only input iterators
5364 * include/bits/ranges_uninitialized.h
5365 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
5366 to copy __ifirst, which could be a move-only input iterator. Use
5367 operator- instead of ranges::distance to compute distance from a sized
5369 (__uninitialized_copy_n_fn::operator()): Likewise.
5370 (__uninitialized_move_fn::operator()): Likewise.
5371 (__uninitialized_move_n_fn::operator()): Likewise.
5372 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
5373 attempting to copy __first.
5374 (__uninitialized_destroy_n_fn::operator()): Likewise.
5375 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
5377 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
5379 * .../specialized_algorithms/uninitialized_move/constrained.cc:
5382 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
5383 protected instead of private.
5384 (test_sized_range_sized_sent): New.
5386 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
5387 New testsuite iterator.
5388 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
5389 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
5391 * include/bits/ranges_uninitialized.h
5392 (uninitialized_copy_fn::operator()): Pass a reference type as the first
5393 argument to is_nothrow_assignable_v.
5394 (uninitialized_copy_fn::operator()): Likewise.
5395 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
5396 with the input iterator stripped of its move_iterator.
5397 (uninitialized_move_n_fn::operator()): Likewise.
5398 (uninitialized_fill_fn::operator()): Pass a reference type as the first
5399 argument to is_nothrow_assignable_v.
5400 (uninitialized_fill_n_fn::operator()): Likewise.
5402 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
5405 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
5406 traits to control when to use memmove and memcmp optimizations.
5407 (__is_nonvolatile_trivially_copyable): New helper trait.
5408 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
5409 use memcmp optimization with volatile data.
5410 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
5411 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
5412 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
5413 (__copy_move_backward_a2): Likewise.
5414 (__equal_aux1): Use __memcmpable.
5415 (__lexicographical_compare_aux): Do not use memcmp optimization with
5417 * testsuite/25_algorithms/copy/94013.cc: New test.
5418 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
5419 * testsuite/25_algorithms/equal/94013.cc: New test.
5420 * testsuite/25_algorithms/fill/94013.cc: New test.
5421 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
5422 * testsuite/25_algorithms/move/94013.cc: New test.
5423 * testsuite/25_algorithms/move_backward/94013.cc: New test.
5425 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
5426 Avoid redundant iterator comparisons (LWG 3410).
5428 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
5431 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
5433 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
5435 * include/std/ranges (__detail::__maybe_empty_t): Rename to
5437 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
5439 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
5442 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
5444 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
5446 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
5448 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
5449 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
5450 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
5451 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
5452 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
5454 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
5455 Add libatomic option.
5456 * testsuite/30_threads/jthread/jthread.cc: Likewise.
5458 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
5460 * include/bits/stl_algo.h
5461 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
5462 * include/bits/stl_algobase.h: ...here.
5463 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
5465 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
5467 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
5469 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
5471 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
5472 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
5473 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
5474 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
5475 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
5476 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
5477 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
5481 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
5483 2020-02-28 Patrick Palka <ppalka@redhat.com>
5486 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
5487 Fix condition for when to use memcmp, making it consistent with the
5488 corresponding condition used in std::lexicographical_compare.
5489 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
5491 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
5492 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
5493 existing signatures for C++2a.
5495 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
5497 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
5498 test instead of just compiling it.
5500 2020-02-28 Patrick Palka <ppalka@redhat.com>
5502 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
5503 whenever the underlying range models common_range.
5505 * include/std/ranges (__detail::_CachedPosition): New struct.
5506 (views::filter_view::_S_needs_cached_begin): New member variable.
5507 (views::filter_view::_M_cached_begin): New member variable.
5508 (views::filter_view::begin): Use _M_cached_begin to cache its
5510 (views::drop_view::_S_needs_cached_begin): New static member variable.
5511 (views::drop_view::_M_cached_begin): New member variable.
5512 (views::drop_view::begin): Use _M_cached_begin to cache its result
5513 when _S_needs_cached_begin.
5514 (views::drop_while_view::_M_cached_begin): New member variable.
5515 (views::drop_while_view::begin): Use _M_cached_begin to cache its
5517 (views::reverse_view::_S_needs_cached_begin): New static member
5519 (views::reverse_view::_M_cached_begin): New member variable.
5520 (views::reverse_view::begin): Use _M_cached_begin to cache its result
5521 when _S_needs_cached_begin.
5522 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
5523 drop_view::begin caches its result.
5524 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
5525 that drop_while_view::begin caches its result.
5526 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
5527 filter_view::begin caches its result.
5528 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
5529 reverse_view::begin caches its result.
5531 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
5533 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
5534 filesystems that silently truncate timestamps.
5535 * testsuite/experimental/filesystem/operations/last_write_time.cc:
5538 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
5539 -Wstringop-overflow warnings.
5541 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
5543 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
5544 -fdiagnostics-urls=never to options.
5546 2020-02-27 Patrick Palka <ppalka@redhat.com>
5548 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
5550 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
5551 (take_view::_Sentinel<_Const>): Likewise.
5552 (take_while_view::_Sentinel<_Const>): Likewise.
5553 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
5554 * testsuite/std/ranges/adaptors/split.cc: Augment test.
5555 * testsuite/std/ranges/adaptors/take.cc: Augment test.
5556 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
5557 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
5559 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
5560 base() of a vector<>::iterator is a pointer.
5561 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
5562 * testsuite/25_algorithms/move/constrained.cc: Likewise.
5563 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
5564 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
5566 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
5567 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
5568 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
5569 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
5570 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
5572 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
5574 * include/debug/array (operator<=>): Define for C++20.
5575 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
5576 Adjust dg-error line numbers.
5577 * testsuite/23_containers/array/tuple_interface/
5578 tuple_element_debug_neg.cc: Likewise.
5580 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
5581 defining _GLIBCXX_ASSERTIONS.
5582 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
5583 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
5584 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
5585 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
5586 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
5587 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
5588 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
5589 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
5590 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
5591 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
5592 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
5593 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
5595 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
5596 C++98 where the member function of the base class returns void.
5598 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
5599 equality comparisons that support value-initialized iterators.
5601 * include/bits/boost_concept_check.h (__function_requires): Add
5602 _GLIBCXX14_CONSTEXPR.
5603 * testsuite/25_algorithms/min/concept_checks.cc: New test.
5605 2020-02-26 Patrick Palka <ppalka@redhat.com>
5608 * include/std/ranges (split_view::_InnerIter::operator==): Compare
5609 the operands' _M_i rather than their _M_i.current().
5610 * testsuite/std/ranges/adaptors/split.cc: Augment test.
5612 P1645R1 constexpr for <numeric> algorithms
5613 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
5614 partial_sum, adjacent_difference): Make conditionally constexpr for
5616 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
5618 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
5619 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
5620 constexpr for C++20.
5621 * include/std/version (__cpp_lib_constexpr_numeric): Define.
5622 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
5623 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
5624 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
5625 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
5626 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
5627 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
5628 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
5629 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
5630 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
5631 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
5632 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
5634 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
5636 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
5637 variables in smaller scope and avoid calling ranges::distance when we
5638 know they are pointers. Remove statically-unreachable use of
5639 __builtin_unreachable().
5640 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
5643 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
5645 (__detail::__maybe_const_t): Likewise.
5646 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
5647 (transform_view, take_view, take_while_view, elements_view): Use
5649 (join_view, split_view): Use both.
5651 2020-02-25 Patrick Palka <ppalka@redhat.com>
5653 LWG 3397 basic_istream_view::iterator should not provide
5655 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
5657 (basic_istream_view:_Iterator::iterator_concept): ... this.
5658 * testsuite/std/ranges/istream_view.cc: Augment test.
5660 LWG 3325 Constrain return type of transformation function for
5662 * include/std/ranges (transform_view): Constrain the return type of the
5663 transformation function as per LWG 3325.
5664 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
5666 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
5667 * include/std/ranges (join_view::_Iterator::operator--): Require that
5668 range_reference_t<_Base> models common_range.
5669 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
5671 LWG 3301 transform_view::_Iterator has incorrect iterator_category
5672 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
5673 determination of iterator_category as per LWG 3301.
5674 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
5676 LWG 3292 iota_view is under-constrained
5677 * include/std/ranges (iota_view): Require that _Winc models semiregular
5679 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
5681 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
5683 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
5684 during constant evaluation. Call __builtin_memmove directly instead of
5686 (__copy_or_move_backward): Likewise.
5687 * include/bits/stl_algobase.h (__memmove): Remove.
5688 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
5689 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
5690 Use __builtin_memmove directly instead of __memmove.
5691 (__copy_move_a2): Do not use memmove during constant evaluation.
5692 (__copy_move_backward_a2): Use _IsMove constant to select correct
5693 __copy_move_backward specialization.
5694 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
5695 begin turned into moves during constant evaluation.
5697 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
5701 * include/bits/stl_algobase.h (__memmove): Cast away const before
5702 doing move assignment.
5703 * testsuite/25_algorithms/move/93872.cc: New test.
5704 * testsuite/25_algorithms/move_backward/93872.cc: New test.
5706 2020-02-24 Patrick Palka <ppalka@redhat.com>
5709 * include/bits/ranges_algobase.h (__copy_or_move,
5710 __copy_or_move_backward): Don't inspect the iter_value_t of the output
5711 iterator, instead inspect its iterator_traits directly.
5712 * include/bits/stl_iterator.h (back_insert_iterator::container):
5713 Conditionally initialize.
5714 (back_insert_iterator::difference_type): Conditionally define.
5715 (back_insert_iterator::back_insert_iterator): Conditionally define this
5716 default constructor.
5717 (front_insert_iterator::container): Conditionally initialize.
5718 (front_insert_iterator::difference_type): Conditionally define.
5719 (front_insert_iterator::front_insert_iterator): Conditionally define
5720 this default constructor.
5721 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
5722 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
5724 P0769R2 Add shift to <algorithm>
5725 * include/bits/ranges_algo.h (shift_left, shift_right): New.
5726 * testsuite/25_algorithms/shift_left/1.cc: New test.
5727 * testsuite/25_algorithms/shift_right/1.cc: New test.
5729 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
5731 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
5732 Make noexcept-specifier conditional.
5733 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
5736 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
5738 (operator==(istream_iterator, default_sentinel_t)): Add operator.
5739 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
5740 * include/bits/streambuf_iterator.h
5741 (istreambuf_iterator(default_sentinel_t)): Add constructor.
5742 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
5743 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
5745 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
5746 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
5748 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
5750 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
5751 (ranges::enable_view): Simplify (LWG 3326).
5752 * include/bits/range_access.h (ranges::enable_view): Declare.
5753 * include/bits/regex.h (__enable_view_impl): Remove partial
5755 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
5756 * include/bits/stl_set.h (__enable_view_impl): Likewise.
5757 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
5758 * include/debug/multiset.h (__enable_view_impl): Likewise.
5759 * include/debug/set.h (__enable_view_impl): Likewise.
5760 * include/debug/unordered_set (__enable_view_impl): Likewise.
5761 * include/experimental/string_view (ranges::enable_view): Define
5762 partial specialization.
5763 * include/std/span (ranges::enable_view): Likewise.
5764 * include/std/string_view (ranges::enable_view): Likewise.
5765 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
5767 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
5769 * include/std/optional (operator<=>(optional<T>, optional<U>))
5770 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
5772 * include/std/tuple (__tuple_cmp): New helper function for <=>.
5773 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
5774 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
5775 (operator<=>(monostate, monostate)): Define for C++20.
5776 * testsuite/20_util/optional/relops/three_way.cc: New test.
5777 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
5778 * testsuite/20_util/variant/89851.cc: Move to ...
5779 * testsuite/20_util/variant/relops/89851.cc: ... here.
5780 * testsuite/20_util/variant/90008.cc: Move to ...
5781 * testsuite/20_util/variant/relops/90008.cc: ... here.
5782 * testsuite/20_util/variant/relops/three_way.cc: New test.
5784 2020-02-20 Patrick Palka <ppalka@redhat.com>
5786 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
5788 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
5789 __maybe_refwrap to capture lvalue references by reference, and then use
5790 unwrap_reference_t to forward the by-reference captures as references.
5791 * testsuite/std/ranges/adaptors/split.cc: Augment test.
5792 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
5794 * include/std/ranges (iota_view): Forward declare _Sentinel.
5795 (iota_view::_Iterator): Befriend _Sentinel.
5796 (iota_view::_Sentinel::_M_equal): New member function.
5797 (iota_view::_Sentinel::operator==): Use it.
5798 (views::_Iota::operator()): Forward __f using the correct type.
5799 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
5800 with integers of different signedness, to appease iota_view's deduction
5802 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
5804 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
5806 * include/bits/range_access.h (ranges::begin): Reject array of
5808 (ranges::end, ranges::size): Require arrays to be bounded.
5809 (ranges::data): Require lvalue or borrowed_range.
5810 (ranges::iterator_t): Remove constraint.
5811 * testsuite/std/ranges/access/begin.cc: Do not check array of
5813 * testsuite/std/ranges/access/begin_neg.cc: New test.
5814 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
5815 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
5816 * testsuite/std/ranges/access/ssize.cc: Do not check array of
5819 * include/std/system_error (error_category::operator<=>)
5820 (operator<=>(const error_code&, const error_code&))
5821 (operator<=>(const error_condition&, const error_condition&)): Define
5823 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
5824 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
5826 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
5828 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
5829 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
5831 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
5832 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
5834 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
5835 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
5836 Remove incorrect comment.
5837 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
5840 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
5842 * include/std/thread (thread::id::operator<=>): Define for C++20.
5843 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
5844 functions in namespace std.
5845 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
5847 2020-02-19 Patrick Palka <ppalka@redhat.com>
5849 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
5850 null terminator of the underlying string as part of the test_range.
5851 (main): Call test03.
5853 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
5855 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
5856 requirement (LWG 3385).
5857 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
5858 expected declaration.
5860 * include/std/ranges (take_while_view, drop_view, drop_while_view)
5861 (elements_view:_Iterator): Initialize data members (LWG 3364).
5863 * libsupc++/compare (three_way_comparable): Remove always-false check
5864 that should have been removed with weak_equality (P1959R0).
5865 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
5867 * include/std/concepts (__detail::__partially_ordered_with): Move here
5869 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
5870 to simplify definition (LWG 3331).
5871 * libsupc++/compare (__detail::__partially_ordered_with): Move to
5874 * include/std/concepts (totally_ordered_with): Remove redundant
5875 requirement (LWG 3329).
5877 * include/std/ranges (__detail::__convertible_to_non_slicing): New
5879 (__detail::__pair_like_convertible_to): Remove.
5880 (__detail::__pair_like_convertible_from): Add requirements for
5881 non-slicing conversions.
5882 (subrange): Constrain constructors with __convertible_to_non_slicing.
5883 Remove constructors from pair-like types. Add new deduction guide.
5884 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
5886 * include/bits/iterator_concepts.h (iter_move): Add declaration to
5887 prevent unqualified lookup finding a suitable declaration (LWG 3247).
5889 * include/std/memory_resource (polymorphic_allocator::allocate)
5890 (polymorphic_allocator::allocate_object): Change type of exception to
5891 bad_array_new_length (LWG 3237).
5892 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
5894 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
5895 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
5896 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
5897 * testsuite/20_util/unwrap_reference/3.cc: New test.
5899 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
5900 type during overload resolution, use static assert instead (LWG 3200).
5901 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
5903 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
5905 * include/std/span (span(T (&)[N])): Use non-deduced context to
5906 prevent first parameter from interfering with class template argument
5907 deduction (LWG 3369).
5908 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
5909 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
5912 * include/std/span (span::const_iterator, span::const_reverse_iterator)
5913 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
5915 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
5917 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
5919 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
5920 constrained.cc: Likewise.
5921 * testsuite/20_util/specialized_algorithms/
5922 uninitialized_default_construct/constrained.cc: Likewise.
5923 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
5924 constrained.cc: Likewise.
5925 * testsuite/20_util/specialized_algorithms/uninitialized_move/
5926 constrained.cc: Likewise.
5927 * testsuite/20_util/specialized_algorithms/
5928 uninitialized_value_construct/constrained.cc: Likewise.
5930 * include/bits/range_access.h (range_size_t): Define alias template.
5931 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
5932 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
5934 * include/std/ranges (filter_view, transform_view, take_view)
5935 (join_view, split_view, reverse_view): Remove commented-out converting
5936 constructors (LWG 3280).
5938 * include/std/memory (uninitialized_construct_using_allocator): Use
5939 std::construct_at (LWG 3321).
5941 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
5942 (polymorphic_allocator::allocate_object)
5943 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
5945 LWG 3379. "safe" in several library names is misleading
5946 * include/bits/range_access.h (enable_safe_range): Rename to
5947 enable_borrowed_range.
5948 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
5949 (safe_range): Rename to borrowed_range.
5950 * include/bits/ranges_algo.h: Adjust to use new names.
5951 * include/bits/ranges_algobase.h: Likewise.
5952 * include/bits/ranges_uninitialized.h: Likewise.
5953 * include/std/ranges: Likewise.
5954 (safe_iterator_t): Rename to borrowed_iterator_t.
5955 (safe_subrange_t): Rename to borrowed_subrange_t.
5956 * include/std/span: Adjust to use new names.
5957 * include/std/string_view: Likewise.
5958 * include/experimental/string_view: Likewise.
5959 * testsuite/std/ranges/access/begin.cc: Likewise.
5960 * testsuite/std/ranges/access/cbegin.cc: Likewise.
5961 * testsuite/std/ranges/access/cdata.cc: Likewise.
5962 * testsuite/std/ranges/access/cend.cc: Likewise.
5963 * testsuite/std/ranges/access/crbegin.cc: Likewise.
5964 * testsuite/std/ranges/access/crend.cc: Likewise.
5965 * testsuite/std/ranges/access/data.cc: Likewise.
5966 * testsuite/std/ranges/access/end.cc: Likewise.
5967 * testsuite/std/ranges/access/rbegin.cc: Likewise.
5968 * testsuite/std/ranges/access/rend.cc: Likewise.
5969 * testsuite/std/ranges/safe_range.cc: Likewise.
5970 * testsuite/std/ranges/safe_range_types.cc: Likewise.
5971 * testsuite/util/testsuite_iterators.h: Likewise.
5973 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
5974 (tuple_element<1, const subrange<I, S, K>>): Add partial
5975 specializations (LWG 3398).
5976 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
5978 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
5979 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
5980 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
5982 2020-02-18 Patrick Palka <ppalka@redhat.com>
5984 P1983R0 Wording for GB301, US296, US292, US291, and US283
5985 * include/std/ranges (filter_view::pred): New member function.
5986 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
5987 P1983R0 fixes the highlighted issue in the same way.
5988 (join_view::_Iterator<_Const>): Add friend
5989 join_view::_Iterator<!_Const>.
5990 (join_view::_M_inner): Remove mutable specifier, effectively reverting
5991 the proposed wording changes of P3278.
5992 (join_view::begin): Refine the condition for when to return a const
5994 (split_view::_OuterIter::_OuterIter): Adjust constraints.
5995 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
5998 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
6001 * include/std/ranges (_RangeAdaptor): Add deduction guide.
6002 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
6004 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
6005 (transform_view::_Iterator): Add alias _Base_iter and use in place of
6007 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
6008 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
6009 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
6010 (split_view::_InnerIter::_S_iter_cat()): Likewise.
6012 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
6013 assumption that long is wider than int.
6014 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
6015 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
6016 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
6017 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
6019 P1976R2 Fixed-size span construction from dynamic range
6020 * include/std/span (__cpp_lib_span): Update value.
6021 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
6023 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
6025 (span::first<Count>(), span::last<Count>()): Use explicit type in
6027 (as_bytes, as_writable_bytes): Likewise.
6028 * include/std/version (__cpp_lib_span): Update value.
6029 * testsuite/23_containers/span/1.cc: Check new value.
6030 * testsuite/23_containers/span/2.cc: Check new value.
6031 * testsuite/23_containers/span/explicit.cc: New test.
6033 * include/std/span (span::__is_compatible_array): Simplify alias
6034 template by using requires-clause.
6035 (span::__is_compatible_ref): New alias template for constraining
6037 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
6038 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
6039 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
6040 redundant parentheses.
6041 (span(R&&)): Add missing constraints.
6043 * include/std/span (span): Reorder members and rename template
6044 parameters to match declarations in the C++2a working paper.
6046 P2116R0 Remove tuple-like protocol support from fixed-extent span
6047 * include/std/span (get, tuple_size, tuple_element): Remove.
6048 * testsuite/23_containers/span/everything.cc: Remove checks for
6050 * testsuite/23_containers/span/get_neg.cc: Remove.
6051 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
6052 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
6053 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
6055 2020-02-17 Patrick Palka <ppalka@redhat.com>
6057 P2106R0 Alternative wording for GB315 and GB316
6058 * include/bits/ranges_algo.h (in_fun_result): New.
6059 (for_each_result, for_each_n_result): Change into an alias of
6061 (in_in_result): New.
6062 (mismatch_result): Change into an alias of in_in_result.
6063 (copy_if_result): Change into an alias of in_out_result.
6064 (swap_ranges_result): Change into an alias of in_in_result.
6065 (unary_transform_result): Change into an alias of in_out_result.
6066 (in_in_out_result): New.
6067 (binary_transform_result): Change into an alias of in_in_out_result.
6068 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
6069 remove_copy_result, unique_copy_result, reverse_copy_result,
6070 rotate_copy_result, partial_sort_copy_result): Change into an alias of
6072 (in_out_out_result): New.
6073 (partition_copy_result, merge_result): Change into an alias of
6075 (set_union_result, set_intersection_result): Change into an alias of
6077 (set_difference_result): Change into an alias of in_out_result.
6078 (set_symmetric_difference): Change into an alias of in_in_out_result.
6079 (min_max_result): New.
6080 (minmax_result, minmax_element_result): Change into an alias of
6082 (in_found_result): New.
6083 (next_permutation_result, prev_permutation_result): Change into an alias
6085 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
6086 Adjust following changes to next_permutation_result and
6087 prev_permutation_result.
6088 * include/bits/ranges_algobase.h (in_out_result): New.
6089 (copy_result, move_result, move_backward_result, copy_backward_result,
6090 copy_n_result): Change into an alias of in_out_result.
6091 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
6092 uninitialized_copy_n_result, uninitialized_move_result,
6093 uninitialized_move_n_result): Likewise.
6094 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
6095 structured bindings.
6096 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
6098 P1243R4 Rangify new algorithms
6099 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
6100 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
6101 * testsuite/25_algorithms/clamp/constrained.cc: New test.
6102 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
6103 * testsuite/25_algorithms/sample/constrained.cc: New test.
6105 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
6107 P1964R2 Wording for boolean-testable
6108 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
6109 (__adjacent_find_fn): Cast result of predicate to bool.
6110 * include/std/concepts (__boolean): Remove.
6111 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
6112 new helper concepts.
6113 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
6114 (predicate): Use __boolean_testable instead of boolean.
6115 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
6118 P1970R2 Consistency for size() functions: Add ranges::ssize
6119 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
6120 * testsuite/std/ranges/access/ssize.cc: New test.
6122 P1956R1 On the names of low-level bit manipulation functions
6123 * include/bits/hashtable_policy.h: Update comment.
6124 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
6125 (ispow2, ceil2, floor2, log2p1): Likewise.
6126 (__cpp_lib_int_pow2): Add feature test macro.
6127 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
6128 * include/std/memory (assume_aligned): Adjust use of ispow2.
6129 * include/std/version (__cpp_lib_int_pow2): Add.
6130 * libsupc++/new_opa.cc: Adjust use of __ispow2.
6131 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
6132 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
6133 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
6134 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
6135 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
6136 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
6137 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
6138 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
6139 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
6140 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
6141 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
6142 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
6144 * include/std/charconv: Add comment.
6146 PR libstdc++/92546 (partial)
6147 * include/bits/random.h (uniform_random_bit_generator): Move definition
6148 to <bits/uniform_int_dist.h>.
6149 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
6151 * include/bits/ranges_algobase.h: Do not include <cmath>.
6152 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
6154 * include/std/ranges: Do not include <limits>.
6155 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
6157 PR libstdc++/92546 (partial)
6158 * include/Makefile.am: Add new header.
6159 * include/Makefile.in: Regenerate.
6160 * include/bits/int_limits.h: New header.
6161 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
6162 numeric_limits with __detail::__int_limits.
6163 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
6164 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
6166 * include/std/charconv (__to_chars_8, __from_chars_binary)
6167 (__from_chars_alpha_to_num, from_chars): Likewise.
6168 * include/std/memory_resource (polymorphic_allocator::allocate)
6169 (polymorphic_allocator::allocate_object): Likewise.
6170 * include/std/string_view (basic_string_view::_S_compare): Likewise.
6171 * include/std/utility (in_range): Likewise.
6172 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
6173 extra error about incomplete type __int_limits<bool>.
6174 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
6175 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
6176 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
6177 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
6178 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
6179 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
6180 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
6181 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
6182 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
6183 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
6184 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
6185 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
6187 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
6188 value for partial_ordering::unordered.
6190 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
6191 const-qualified expression variations.
6192 * include/std/concepts (copyable): Likewise.
6194 * include/std/type_traits (__is_standard_integer): New helper trait.
6195 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
6196 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
6197 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
6198 * testsuite/20_util/integer_comparisons/1.cc: New test.
6199 * testsuite/20_util/integer_comparisons/2.cc: New test.
6200 * testsuite/20_util/integer_comparisons/equal.cc: New test.
6201 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
6202 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
6203 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
6204 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
6205 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
6206 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
6207 * testsuite/20_util/integer_comparisons/less.cc: New test.
6208 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
6209 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
6210 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
6211 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
6212 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
6214 2020-02-16 Patrick Palka <ppalka@redhat.com>
6216 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
6217 Move code after an early exit constexpr if to under an else branch.
6218 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
6220 2020-02-15 Patrick Palka <ppalka@redhat.com>
6222 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
6223 * include/bits/ranges_algobase.h: Likewise.
6224 * include/bits/ranges_uninitialized.h: Likewise.
6226 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
6227 binary_search, copy_if, count, count_if, equal_range, find, find_end,
6228 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
6229 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
6230 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
6231 lower_bound, make_heap, max, max_element, merge, min, min_element,
6232 minmax, minmax_element, mismatch, next_permutation, none_of,
6233 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
6234 partition_point, pop_heap, prev_permutation, push_heap, remove,
6235 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
6236 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
6237 search, search_n, set_difference, set_intersection,
6238 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
6239 stable_partition, stable_sort, swap_ranges, transform, unique,
6240 unique_copy, upper_bound): Convert into function objects.
6241 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
6242 fill, move_backward, copy_backward): Likewise.
6243 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
6244 uninitialized_default_construct_n, uninitialized_value_construct,
6245 uninitialized_value_construct_n, uninitialized_copy,
6246 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
6247 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
6248 destroy, destroy_n): Likewise.
6250 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
6251 (ranges::find_end): ... here.
6252 (ranges::__lexicographical_compare): Fold into ...
6253 (ranges::lexicographical_compare): ... here.
6254 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
6255 (ranges::equal): ... here.
6257 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
6259 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
6260 * include/std/deque: Likewise.
6261 * include/std/forward_list: Likewise.
6262 * include/std/list: Likewise.
6263 * include/std/string: Likewise.
6264 * include/std/vector: Likewise.
6265 * include/std/version: Likewise.
6266 * testsuite/23_containers/deque/erasure.cc: Test for new value.
6267 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
6268 * testsuite/23_containers/list/erasure.cc: Likewise.
6269 * testsuite/23_containers/map/erasure.cc: Likewise.
6270 * testsuite/23_containers/set/erasure.cc: Likewise.
6271 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
6272 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
6273 * testsuite/23_containers/vector/erasure.cc: Likewise.
6275 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
6277 * include/bits/random.h (uniform_random_bit_generator): Require min()
6278 and max() to be constant expressions and min() to be less than max().
6279 * testsuite/26_numerics/random/concept.cc: Check additional cases.
6280 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
6282 2020-02-13 Patrick Palka <ppalka@redhat.com>
6284 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
6285 * include/Makefile.in: Regenerate.
6286 * include/bits/ranges_uninitialized.h: New header.
6287 * include/std/memory: Include it.
6288 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
6290 * .../uninitialized_copy/constrained.cc: New test.
6291 * .../uninitialized_default_construct/constrained.cc: New test.
6292 * .../uninitialized_fill/constrained.cc: New test.
6293 * .../uninitialized_move/constrained.cc: New test.
6294 * .../uninitialized_value_construct/constrained.cc: New test.
6296 * include/Makefile.am: Add bits/ranges_algobase.h
6297 * include/Makefile.in: Regenerate.
6298 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
6300 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
6301 __detail::__is_move_iterator, copy_result, move_result,
6302 __equal, equal, copy_result, move_result, move_backward_result,
6303 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
6304 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
6305 fill): Split out into ...
6306 * bits/range_algobase.h: ... this new header.
6308 2020-02-12 Patrick Palka <ppalka@redhat.com>
6310 LWG 3389 and LWG 3390
6311 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
6312 constructing the move_iterator with __i.
6313 (counted_iterator::counted_iterator): Use std::move when initializing
6315 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
6316 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
6318 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
6323 * configure: Regenerated.
6325 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
6327 * include/bits/hashtable.h
6328 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
6329 missing std namespace qualification to forward call.
6331 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
6333 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
6335 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
6337 * include/std/ranges: Fix non-ASCII characters in comment.
6339 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
6340 equality comparison to be valid and return bool.
6341 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
6342 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
6343 type with ambiguous conversion to fundamental types.
6344 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
6346 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
6348 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
6350 (readable_traits): Rename to indirectly_readable_traits.
6351 (readable): Rename to indirectly_readable.
6352 (writable): Rename to indirectly_writable.
6353 (__detail::__iter_exchange_move): Do not use remove_reference_t.
6354 (indirectly_swappable): Adjust requires expression parameter types.
6356 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
6357 (ranges::replace_if, ranges::generate_n, ranges::generate)
6358 (ranges::remove): Use new name for writable.
6359 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
6360 Use new name for readable.
6361 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
6362 new name for readable_traits.
6363 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
6364 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
6365 new definition of indirectly_readable.
6367 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
6368 to take parameters of common_iterator, instead of the common_iterator
6369 type itself. Fix argument for __common_iter_has_arrow constraint.
6370 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
6372 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
6374 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
6376 (basic_istream_view::_Iterator::operator++()): Add missing return.
6378 2020-02-07 Patrick Palka <ppalka@redhat.com>
6380 * include/bits/ranges_algo.h: Remove extraneous &&.
6382 * include/std/ranges (ranges::__detail::__stream_extractable,
6383 ranges::basic_istream_view, ranges::istream_view): Define.
6384 * testsuite/std/ranges/istream_view: New test.
6386 Implement C++20 range adaptors
6387 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
6388 (subrange::_S_store_size): Mark as const instead of constexpr to
6389 avoid what seems to be a bug in GCC.
6390 (__detail::__box): Give it defaulted copy and move constructors.
6391 (ranges::views::_Single::operator()): Mark constexpr.
6392 (ranges::views::_Iota::operator()): Mark constexpr.
6393 (__detail::Empty): Define.
6394 (ranges::views::__closure::_RangeAdaptor,
6395 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
6396 ranges::views::all, ranges::__detail::find_if,
6397 ranges::__detail::find_if_not, ranges::__detail::mismatch,
6398 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
6399 ranges::views::transform, take_view, ranges::views::take,
6400 take_while_view, ranges::views::take_while, drop_view,
6401 ranges::views::drop, join_view, ranges::views::join,
6402 __detail::require_constant, __detail::tiny_range, split_view,
6403 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
6404 common_view, ranges::views::common, reverse_view,
6405 ranges::views::reverse,
6406 ranges::views::__detail::__is_reversible_subrange,
6407 ranges::views::__detail::__is_reverse_view, reverse_view,
6408 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
6409 ranges::views::elements, ranges::views::keys, ranges::views::values):
6411 (views): Alias for ranges::views.
6412 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
6413 tuple_element<1, ranges::subrange>): New partial specializations.
6414 * testsuite/std/ranges/adaptors/all.cc: New test.
6415 * testsuite/std/ranges/adaptors/common.cc: Likewise.
6416 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
6417 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
6418 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
6419 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
6420 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
6421 * testsuite/std/ranges/adaptors/join.cc: Likewise.
6422 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
6423 * testsuite/std/ranges/adaptors/split.cc: Likewise.
6424 * testsuite/std/ranges/adaptors/take.cc: Likewise.
6425 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
6426 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
6428 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
6430 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
6431 type of enumerations and comparison category types.
6432 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
6433 (__cmp_cat::_Ncmp::unordered): Change value to 2.
6434 (partial_ordering::_M_value, weak_ordering::_M_value)
6435 (strong_ordering::_M_value): Change type to __cmp_cat::type.
6436 (partial_ordering::_M_is_ordered): Remove data member.
6437 (partial_ordering): Use second bit of _M_value for unordered. Adjust
6438 comparison operators.
6439 (weak_ordering::operator partial_ordering): Simplify to remove
6441 (operator<=>(unspecified, weak_ordering)): Likewise.
6442 (strong_ordering::operator partial_ordering): Likewise.
6443 (strong_ordering::operator weak_ordering): Likewise.
6444 (operator<=>(unspecified, strong_ordering)): Likewise.
6445 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
6446 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
6447 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
6449 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
6450 __cpp_lib_three_way_comparison macro and use deduced return type for
6452 * testsuite/std/ranges/iota/iterator.cc: New test.
6454 2020-02-07 Patrick Palka <ppalka@redhat.com>
6455 Jonathan Wakely <jwakely@redhat.com>
6457 Implement C++20 constrained algorithms
6458 * include/Makefile.am: Add new header.
6459 * include/Makefile.in: Regenerate.
6460 * include/std/algorithm: Include <bits/ranges_algo.h>.
6461 * include/bits/ranges_algo.h: New file.
6462 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
6463 * testsuite/25_algorithms/all_of/constrained.cc: New test.
6464 * testsuite/25_algorithms/any_of/constrained.cc: New test.
6465 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
6466 * testsuite/25_algorithms/copy/constrained.cc: New test.
6467 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
6468 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
6469 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
6470 * testsuite/25_algorithms/count/constrained.cc: New test.
6471 * testsuite/25_algorithms/count_if/constrained.cc: New test.
6472 * testsuite/25_algorithms/equal/constrained.cc: New test.
6473 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
6474 * testsuite/25_algorithms/fill/constrained.cc: New test.
6475 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
6476 * testsuite/25_algorithms/find/constrained.cc: New test.
6477 * testsuite/25_algorithms/find_end/constrained.cc: New test.
6478 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
6479 * testsuite/25_algorithms/find_if/constrained.cc: New test.
6480 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
6481 * testsuite/25_algorithms/for_each/constrained.cc: New test.
6482 * testsuite/25_algorithms/generate/constrained.cc: New test.
6483 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
6484 * testsuite/25_algorithms/heap/constrained.cc: New test.
6485 * testsuite/25_algorithms/includes/constrained.cc: New test.
6486 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
6487 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
6488 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
6489 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
6490 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
6491 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
6493 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
6494 * testsuite/25_algorithms/max/constrained.cc: New test.
6495 * testsuite/25_algorithms/max_element/constrained.cc: New test.
6496 * testsuite/25_algorithms/merge/constrained.cc: New test.
6497 * testsuite/25_algorithms/min/constrained.cc: New test.
6498 * testsuite/25_algorithms/min_element/constrained.cc: New test.
6499 * testsuite/25_algorithms/minmax/constrained.cc: New test.
6500 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
6501 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
6502 * testsuite/25_algorithms/move/constrained.cc: New test.
6503 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
6504 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
6505 * testsuite/25_algorithms/none_of/constrained.cc: New test.
6506 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
6507 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
6508 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
6509 * testsuite/25_algorithms/partition/constrained.cc: New test.
6510 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
6511 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
6512 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
6513 * testsuite/25_algorithms/remove/constrained.cc: New test.
6514 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
6515 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
6516 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
6517 * testsuite/25_algorithms/replace/constrained.cc: New test.
6518 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
6519 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
6520 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
6521 * testsuite/25_algorithms/reverse/constrained.cc: New test.
6522 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
6523 * testsuite/25_algorithms/rotate/constrained.cc: New test.
6524 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
6525 * testsuite/25_algorithms/search/constrained.cc: New test.
6526 * testsuite/25_algorithms/search_n/constrained.cc: New test.
6527 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
6528 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
6529 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
6531 * testsuite/25_algorithms/set_union/constrained.cc: New test.
6532 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
6533 * testsuite/25_algorithms/sort/constrained.cc: New test.
6534 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
6535 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
6536 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
6537 * testsuite/25_algorithms/transform/constrained.cc: New test.
6538 * testsuite/25_algorithms/unique/constrained.cc: New test.
6539 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
6540 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
6542 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
6544 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
6545 number in comment. Fix indentation.
6547 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
6548 redundant _GLIBCXX20_CONSTEXPR.
6550 * include/std/ranges (viewable_range): Replace decay_t with
6551 remove_cvref_t (LWG 3375).
6553 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
6555 * include/bits/iterator_concepts.h (iter_reference_t)
6556 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
6557 Remove workarounds for PR c++/67704.
6558 * testsuite/24_iterators/aliases.cc: New test.
6560 2020-02-05 Patrick Palka <ppalka@redhat.com>
6562 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
6563 when initializing _M_current.
6564 (move_iterator::base): Split into two overloads differing in
6565 ref-qualifiers as in P1207R4 for C++20.
6567 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
6569 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
6573 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
6574 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
6575 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
6577 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
6579 * configure: Regenerate.
6581 2020-01-31 Patrick Palka <ppalka@redhat.com>
6583 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
6584 test_range::end() returns the same type as test_range::begin().
6585 * testsuite/24_iterators/range_operations/next.cc: Likewise.
6586 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
6587 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
6588 Always return a sentinel<I>.
6590 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
6593 * include/std/stop_token (stop_token::stop_possible()): Call new
6594 _M_stop_possible() function.
6595 (stop_token::stop_requested()): Do not use stop_possible().
6596 (stop_token::binary_semaphore): New class, as temporary stand-in for
6597 std::binary_semaphore.
6598 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
6599 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
6600 New data members for symchronization with stop_callback destruction.
6601 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
6602 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
6604 (stop_token::_Stop_cb::_M_run): New member function.
6605 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
6607 (stop_token::_Stop_state::_M_owners): New data member to track
6608 reference count for ownership.
6609 (stop_token::_Stop_state::_M_value): New data member combining a
6610 spinlock, the stop requested flag, and the reference count for
6611 associated stop_source objects.
6612 (stop_token::_Stop_state::_M_requester): New data member for
6613 synchronization with stop_callback destruction.
6614 (stop_token::_Stop_state::_M_stop_possible()): New member function.
6615 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
6617 (stop_token::_Stop_state::_M_add_owner)
6618 (stop_token::_Stop_state::_M_release_ownership)
6619 (stop_token::_Stop_state::_M_add_ssrc)
6620 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
6621 updating reference counts.
6622 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
6623 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
6624 (stop_token::_Stop_state::_M_try_lock)
6625 (stop_token::_Stop_state::_M_try_lock_and_stop)
6626 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
6628 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
6629 read and update state. Release lock while running callbacks. Use new
6630 data members to synchronize with callback destruction.
6631 (stop_token::_Stop_state::_M_remove_callback): Likewise.
6632 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
6633 to read and update state.
6634 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
6635 replacing shared_ptr.
6636 (stop_source::stop_source(const stop_source&)): Update reference count.
6637 (stop_source::operator=(const stop_source&)): Likewise.
6638 (stop_source::~stop_source()): Likewise.
6639 (stop_source::stop_source(stop_source&&)): Define as defaulted.
6640 (stop_source::operator=(stop_source&&)): Establish postcondition on
6642 (stop_callback): Enforce preconditions on template parameter. Replace
6643 base class with data member of new _Cb_impl type.
6644 (stop_callback::stop_callback(const stop_token&, Cb&&))
6645 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
6646 (stop_callback::_Cb_impl): New type wrapping _Callback member and
6647 defining the _S_execute member function.
6648 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
6650 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
6651 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
6652 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
6654 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
6656 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
6657 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
6658 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
6661 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
6662 three_way_comparable_with.
6663 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
6664 (compare_three_way::operator()): Remove redundant constraint from
6666 (__detail::_Synth3way::operator()): Use three_way_comparable_with
6667 instead of workaround.
6668 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
6669 output due to simplified constraints on compare_three_way::operator().
6672 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
6673 * testsuite/18_support/comparisons/object/93479.cc: New test.
6675 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
6676 returns the same type as test_range::begin(). Add comments.
6677 * testsuite/std/ranges/access/rbegin.cc: Likewise.
6678 * testsuite/std/ranges/access/rend.cc: Likewise.
6679 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
6680 test_range is the same as its iterator type.
6681 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
6682 operator- overloads to satisfy sized_sentinel_for when the iterator
6683 satisfies random_access_iterator.
6685 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
6688 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
6689 static assertion to object types.
6692 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
6693 clock_gettime instead of explicit glibc version check.
6694 * configure: Regenerate.
6696 2020-01-28 Martin Liska <mliska@suse.cz>
6699 * include/std/atomic: Fix typo.
6700 * include/std/optional: Likewise.
6702 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
6704 * configure: Regenerate.
6706 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
6709 * include/std/span (span): Fix deduction guide.
6710 * testsuite/23_containers/span/deduction.cc: New test.
6712 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
6714 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
6715 (__cmp_cat::_Ord::equivalent): Add enumerator.
6716 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
6718 (partial_ordering, weak_ordering, strong_ordering): Remove
6719 constructors taking __cmp_cat::_Eq parameters. Use renamed
6722 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
6724 * acinclude.m4: Handle `--with-toolexeclibdir='.
6725 * Makefile.in: Regenerate.
6726 * aclocal.m4: Regenerate.
6727 * configure: Regenerate.
6728 * doc/Makefile.in: Regenerate.
6729 * include/Makefile.in: Regenerate.
6730 * libsupc++/Makefile.in: Regenerate.
6731 * po/Makefile.in: Regenerate.
6732 * python/Makefile.in: Regenerate.
6733 * src/Makefile.in: Regenerate.
6734 * src/c++11/Makefile.in: Regenerate.
6735 * src/c++17/Makefile.in: Regenerate.
6736 * src/c++98/Makefile.in: Regenerate.
6737 * src/filesystem/Makefile.in: Regenerate.
6738 * testsuite/Makefile.in: Regenerate.
6740 2020-01-23 Alexandre Oliva <oliva@adacore.com>
6742 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
6743 * configure: Rebuild.
6745 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
6747 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
6750 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
6752 * include/Makefile.in: Regenerate.
6754 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
6756 * doc/xml/faq.xml: Fix grammar.
6757 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
6758 * doc/xml/manual/spine.xml: Update copyright years.
6759 * doc/html/*: Regenerate.
6761 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
6763 * doc/xml/faq.xml: Update for SVN -> Git transition.
6764 * doc/xml/manual/appendix_contributing.xml: Likewise.
6765 * doc/xml/manual/status_cxx1998.xml: Likewise.
6766 * doc/xml/manual/status_cxx2011.xml: Likewise.
6767 * doc/xml/manual/status_cxx2014.xml: Likewise.
6768 * doc/xml/manual/status_cxx2017.xml: Likewise.
6769 * doc/xml/manual/status_cxx2020.xml: Likewise.
6770 * doc/xml/manual/status_cxxtr1.xml: Likewise.
6771 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
6773 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
6775 * include/Makefile.am: Add coroutine to the std set.
6776 * include/Makefile.in: Regenerated.
6777 * include/std/coroutine: New file.
6779 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
6782 * include/bits/c++config: Only do PSTL config when the header is
6783 present, to fix freestanding.
6784 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
6785 functions if they were detected by configure.
6787 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
6788 Matthew Bauer <mjbauer95@gmail.com>
6789 Jonathan Wakely <jwakely@redhat.com>
6791 PR bootstrap/64271 (partial)
6792 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
6794 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
6795 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
6796 definitions with NetBSD upstream.
6797 (ctype_base::blank): Use _CTYPE_BL.
6798 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
6800 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
6801 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
6802 parameters to unsigned char.
6803 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
6805 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
6808 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
6809 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
6810 (_Equality_base): Remove.
6811 (_Equality<>::_M_equal): Review implementation. Use
6812 std::is_permutation.
6813 * testsuite/23_containers/unordered_multiset/operators/1.cc
6814 (Hash, Equal, test02, test03): New.
6815 * testsuite/23_containers/unordered_set/operators/1.cc
6816 (Hash, Equal, test02, test03): New.
6818 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
6821 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
6822 Move here from <bits/range_access.h> and define using __int128 when
6824 (__is_integer_like, __is_signed_integer_like): Move here from
6825 <bits/range_access.h>.
6826 (weakly_incrementable): Use __is_signed_integer_like.
6827 * include/bits/range_access.h (__max_diff_type, __max_size_type)
6828 (__is_integer_like, __is_signed_integer_like): Move to
6829 <bits/iterator_concepts.h>.
6830 (__make_unsigned_like_t): Move here from <ranges>.
6831 * include/std/ranges (__make_unsigned_like_t): Move to
6832 <bits/range_access.h>.
6833 (iota_view): Replace using-directive with using-declarations.
6834 * testsuite/std/ranges/iota/93267.cc: New test.
6835 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
6837 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
6840 * include/bits/fs_path.h (path::generic_string<C,A>)
6841 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
6842 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
6843 root-dir is converted to forward slash in generic pathname.
6844 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
6845 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
6848 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
6850 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
6851 (__atomic_float): Add default member initializer for C++20.
6852 * include/std/atomic (atomic): Likewise.
6853 (atomic::atomic()): Remove noexcept-specifier on default constructor.
6854 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
6855 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
6857 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
6858 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
6859 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
6860 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
6861 expected result for is_trivially_default_constructible.
6862 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
6863 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
6864 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
6865 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
6866 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
6867 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
6868 expected results for is_trivially_default_constructible.
6869 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
6872 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
6874 * testsuite/util/testsuite_iterators.h: Improve comment.
6876 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
6877 initialization syntax.
6880 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
6881 of base class independent of __cplusplus value.
6882 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
6883 type defined in the base class
6884 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
6885 * testsuite/24_iterators/istreambuf_iterator/requirements/
6886 base_classes.cc: Adjust expected base class for C++98.
6888 2020-01-09 Olivier Hainque <hainque@adacore.com>
6890 * doc/xml/manual/appendix_contributing.xml: Document _C2
6891 as a reserved identifier, by VxWorks.
6892 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
6893 * include/bits/stl_multimap.h: Likewise.
6895 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
6897 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
6898 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
6899 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
6900 partial specialization to disambiguate the two constrained
6903 * include/experimental/type_traits (experimental::is_pod_v): Disable
6904 -Wdeprecated-declarations warnings around reference to std::is_pod.
6905 * include/std/type_traits (is_pod_v): Likewise.
6906 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
6907 is_standard_layout and is_trivial. Do not check is_pod for C++20.
6908 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
6909 Add -Wno-deprecated for C++20.
6910 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
6911 * testsuite/20_util/is_pod/value.cc: Likewise.
6912 * testsuite/experimental/type_traits/value.cc: Likewise.
6914 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
6916 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
6917 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
6918 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
6920 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
6923 * include/bits/random.h (operator>>): Check stream operation succeeds.
6924 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
6926 (operator>>): Remove redundant __istream_type typedefs. Check stream
6928 (__extract_params): New function to fill a vector from a stream.
6929 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
6932 * config/abi/pre/gnu.ver: Add new exports.
6933 * include/std/memory_resource (memory_resource::~memory_resource()):
6934 Do not define inline.
6935 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
6936 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
6938 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
6939 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
6941 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
6944 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
6946 (_Hashtable<>::__fwd_value_for): New.
6947 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
6949 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
6950 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
6951 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
6953 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
6954 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
6956 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
6958 * testsuite/23_containers/unordered_set/92124.cc: New.
6960 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
6963 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
6964 detailed error reporting for remove_all. Check result of recursive
6965 call before incrementing iterator.
6966 (remove_all(const path&), remove_all(const path&, error_code&)): Use
6968 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
6969 result of recursive call before incrementing iterator.
6970 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
6971 are reported correctly.
6972 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
6974 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
6976 * include/std/condition_variable
6977 (condition_variable_any::wait_on): Rename to match current draft
6979 (condition_variable_any::wait_on_until): Likewise.
6980 (condition_variable_any::wait_on_for): Likewise.
6981 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
6982 Adjust tests to account for renamed methods.
6984 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
6987 * include/bits/stl_tree.h
6988 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
6989 std::move_if_noexcept by std::move.
6990 * testsuite/23_containers/map/92124.cc: New.
6991 * testsuite/23_containers/set/92124.cc: New.
6993 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
6995 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
6996 (stop_source): Likewise (LWG 3362).
6997 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
7000 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
7001 (lexicographical_compare_three_way): Do not depend on
7003 * include/std/version (__cpp_lib_three_way_comparison): Only define
7004 when __cpp_lib_concepts is defined.
7005 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
7007 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
7009 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
7010 Only define four-argument overload when __cpp_lib_concepts is defined.
7012 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
7014 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
7016 2020-01-01 Jakub Jelinek <jakub@redhat.com>
7018 Update copyright years.
7020 Copyright (C) 2020 Free Software Foundation, Inc.
7022 Copying and distribution of this file, with or without modification,
7023 are permitted in any medium without royalty provided the copyright
7024 notice and this notice are preserved.