12019-05-03 Release Manager 2 3 * GCC 9.1.0 released. 4 52019-05-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> 6 7 * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate. 8 * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise. 9 * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise. 10 * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise. 11 * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise. 12 * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt: 13 Likewise. 14 * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise. 15 * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt: 16 Likewise. 17 182019-04-30 Jakub Jelinek <jakub@redhat.com> 19 20 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Change _Lock_policyE2 exports 21 to _Lock_policyE[012]. 22 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. 23 24 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. 25 262019-04-26 H.J. Lu <hongjiu.lu@intel.com> 27 28 Backport from mainline 29 2019-04-26 H.J. Lu <hongjiu.lu@intel.com> 30 31 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 32 332019-04-26 Jonathan Wakely <jwakely@redhat.com> 34 35 Backport from mainline 36 2019-04-26 Jonathan Wakely <jwakely@redhat.com> 37 38 * testsuite/20_util/variant/run.cc: Use a new Hashable type to test 39 hashing, because pmr::string depends on _GLIBCXX_USE_CXX11_ABI==1. 40 * testsuite/21_strings/basic_string/hash/hash.cc 41 [!_GLIBCXX_USE_CXX11_ABI]: Don't test pmr strings. 42 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc 43 [!_GLIBCXX_USE_CXX11_ABI]: Likewise. 44 452019-04-26 Jonathan Wakely <jwakely@redhat.com> 46 47 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches 48 wstring::_M_replace_dispatch with more specific patterns. 49 502019-04-26 Jakub Jelinek <jakub@redhat.com> 51 52 * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update. 53 * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update. 54 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update. 55 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update. 56 57 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. 58 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. 59 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update. 60 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. 61 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update. 62 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update. 63 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. 64 652019-04-25 Jonathan Wakely <jwakely@redhat.com> 66 67 PR libstdc++/90239 68 * doc/xml/manual/status_cxx2020.xml: Correct status of P0591R4. 69 * doc/html/*: Regenerate. 70 712019-04-24 Jonathan Wakely <jwakely@redhat.com> 72 73 * doc/xml/manual/status_cxx2017.xml: Document P0024R2 status. 74 * doc/html/*: Regenerate. 75 76 * include/bits/fs_path.h (operator<, operator<=, operator>) 77 (operator>=, operator==, operator!=): Make hidden friends, as per 78 LWG 3065. 79 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Fix 80 string type in test. 81 * testsuite/27_io/filesystem/path/native/string.cc: Likewise. 82 83 * include/std/any (any::any(ValueType&&)): Use __and_v. 84 * include/std/numeric (midpoint(T, T, T), midpoint(T*, T*, T*)): 85 Likewise. 86 87 * include/std/tuple (apply): Use remove_reference_t instead of decay_t 88 as per P0777R1. 89 * include/std/type_traits (__result_of_memfun): Use remove_reference 90 instead of __remove_cvref_t and remove redundant is_same check. 91 (__inv_unwrap): Use __remove_cvref_t instead of decay_t. 92 93 * include/experimental/string_view (basic_string_view::pointer) 94 (basic_string_view::reference): Fix to refer to non-const value_type. 95 * include/bits/basic_string.h (basic_string): Use __sv_check and 96 __sv_limit instead of basic_string_view::_M_check and 97 basic_string_view::_M_limit. 98 * include/std/string_view (__sv_check, __sv_limit): New 99 helper functions to replace basic_string_view::_M_check and 100 basic_string_view::_M_limit. 101 (basic_string_view): Add static assertions to enforce ill-formed 102 requirement for traits_type::char_type from P1148R0, and to enforce 103 required properties of char-like types. 104 (basic_string_view::pointer, basic_string_view::reference): Fix to 105 refer to non-const value_type. 106 (basic_string_view::operator[], basic_string_view::at) 107 (basic_string_view::front, basic_string_view::back) 108 (basic_string_view::data): Use const_reference and const_pointer 109 typedefs for return types. 110 (basic_string_view::_M_check, basic_string_view::_M_limit): Remove. 111 (hash<wstring_view>): Fix argument_type typedef. 112 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/ 113 char/1.cc: Fix expected return type of basic_string_view::data(). 114 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/ 115 wchar_t/1.cc: Likewise. 116 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/ 117 char/1.cc: Likewise. 118 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/ 119 wchar_t/1.cc: Likewise. 120 * testsuite/21_strings/basic_string_view/requirements/traits_neg.cc: 121 New test. 122 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc: 123 Check reference and pointer typedefs. 124 * testsuite/experimental/string_view/requirements/typedefs.cc: 125 Likewise. 126 * testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc: 127 Fix expected return type of basic_string_view::data(). 128 * testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/ 129 1.cc: Likewise. 130 * testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc: 131 Likewise. 132 * testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/ 133 1.cc: Likewise. 134 135 PR libstdc++/90220 136 * include/std/any (__any_caster): Use remove_cv_t instead of decay_t. 137 Avoid a runtime check for types that can never be stored in std::any. 138 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with 139 array types. 140 141 PR libstdc++/90220 (partial) 142 * include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do 143 not attempt ill-formed static_cast to pointers to non-object types. 144 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with 145 function types. 146 147 * testsuite/20_util/variant/run.cc: Catch exception by reference to 148 prevent -Wcatch-value warning. 149 150 * include/std/variant (__variant_construct): Use template parameter 151 type instead of equivalent decltype-specifier. 152 (_Move_ctor_base<false, Types...>::_Move_ctor_base(_Move_ctor_base&&)): 153 Replace forward with move. 154 (_Move_ctor_base<false, Types...>::_M_destructive_move) 155 (_Move_ctor_base<false, Types...>::_M_destructive_copy) 156 (_Move_ctor_base<true, Types...>::_M_destructive_move) 157 (_Move_ctor_base<true, Types...>::_M_destructive_copy): Only set the 158 index after construction succeeds. 159 (_Copy_assign_base<false, Types...>::operator=): Remove redundant 160 if-constexpr checks that are always true. Use __remove_cvref_t instead 161 of remove_reference so that is_nothrow_move_constructible check 162 doesn't use a const rvalue parameter. In the potentially-throwing case 163 construct a temporary and move assign it, as per LWG 2904. 164 (_Move_assign_base<false, Types...>::operator=): Remove redundant 165 if-constexpr checks that are always true. Use emplace as per LWG 2904. 166 (variant::operator=(T&&)): Only use emplace conditionally, otherwise 167 construct a temporary and move assign from it, as per LWG 2904. 168 * testsuite/20_util/variant/exception_safety.cc: Check that 169 assignment operators have strong exception safety guarantee. 170 1712019-04-23 Thomas Rodgers <trodgers@redhat.com> 172 173 Document PSTL linker flags 174 175 * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1. 176 1772019-04-23 Jonathan Wakely <jwakely@redhat.com> 178 179 * include/std/variant (__detail::__variant::_Traits): Make 180 _S_trivial_copy_assign depend on _S_trivial_copy_ctor and make 181 _S_trivial_move_assign depend on _S_trivial_move_ctor, as per 182 P0602R4. 183 (__detail::__variant::_Copy_assign_alias): Only depend on 184 _S_trivial_copy_assign, which subsumes _S_trivial_copy_ctor now. 185 * testsuite/20_util/variant/compile.cc: Correct checks for trivial 186 move assignment operators. 187 188 PR libstdc++/90165 189 * include/std/variant (variant::__not_self): New helper for the 190 is_same_v<remove_cvref_t<T>, variant>==false constraints. 191 (variant::__to_type_impl): Remove. 192 (variant::__to_type): Add default argument to check pack size, instead 193 of using __to_type_impl. 194 (variant::__accepted_type): Add default argument using __not_self. 195 (variant::__is_in_place_tag, variant::__not_in_place_tag): New helpers 196 for variant(T&&) constructor constraint. 197 (variant::variant(T&&)): Use __not_in_place_tag in constraints. 198 Extract __accepted_type into a named template parameter for reuse in 199 other constraints and in the exception specification. 200 (variant::variant(in_place_type_t<T>, Args&&...)) 201 (variant::variant(in_place_type_t<T>, initializer_list<U>, Args&&...)) 202 (variant::variant(in_place_index_t<T>, Args&&...)) 203 (variant::variant(in_place_index_t<T>, initializer_list<U>, Args&&...)) 204 (variant::operator=T&&)): Remove redundant && from trait arguments. 205 * testsuite/20_util/variant/compile.cc: Check variant(T&&) constructor 206 isn't used for in_place_type or in_place_index arguments. 207 208 * include/std/type_traits (unwrap_reference_t): Define for C++2a. 209 (unwrap_ref_decay): Remove inheritance from unwrap_reference. 210 * testsuite/20_util/unwrap_reference/1.cc: Adjust test to use alias. 211 2122019-04-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com> 213 Bernd Edlinger <bernd.edlinger@hotmail.de> 214 Jakub Jelinek <jakub@redhat.com> 215 216 PR target/89093 217 * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add 218 general-regs-only target attribute for ARM. 219 2202019-04-23 Jonathan Wakely <jwakely@redhat.com> 221 222 PR libstdc++/87431 223 * include/bits/basic_string.h (_Never_valueless_alt): Make partial 224 specialization also depend on is_nothrow_move_constructible. 225 * include/std/variant (__detail::__variant::__never_valueless()): 226 Only true if the variant would have a move assignment operator. 227 (__detail::__variant::_Variant_storage<false, T...>::_M_valid()): 228 Check __never_valueless<T...>(). 229 (variant::emplace): Only perform non-throwing move assignments 230 for never-valueless alternatives if the variant has a move assignment 231 operator. 232 * testsuite/20_util/variant/compile.cc: Check that never-valueless 233 types can be emplaced into non-assignable variants. 234 * testsuite/20_util/variant/run.cc: Check that never-valueless types 235 don't get copied when emplaced into non-assignable variants. 236 237 * include/std/variant (__detail::__variant::__ref_cast): Remove 238 unused function. 239 (__detail::__variant::_Uninitialized::_M_get) 240 (__detail::__variant::__get) 241 (__gen_vtable_impl::__element_by_index_or_cookie): Add noexcept. 242 2432019-04-21 Iain Sandoe <iain@sandoe.co.uk> 244 245 * testsuite/17_intro/headers/c++1998/charset.cc: Skip for Darwin8 246 to Darwin10. 247 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise. 248 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise. 249 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise. 250 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise. 251 2522019-04-20 Thomas Rodgers <trodgers@redhat.com> 253 254 Delegate PSTL configuration to pstl/pstl_config.h 255 256 * include/bits/c++config: Remove explicit PSTL configuration 257 macros and use definitions from <pstl/pstl_config.h>. 258 2592019-04-20 Thomas Rodgers <trodgers@redhat.com> 260 261 Cleanup algorithm implementations 262 * include/pstl/glue_algorithm_impl.h (stable_sort): Forward 263 execution policy. 264 (mismatch): Forward execution policy. 265 (equal): Qualify call to std::equal(). 266 (partial_sort): Forward execution policy. 267 (inplace_merge): Forward execution policy. 268 2692019-04-19 Thomas Rodgers <trodgers@redhat.com> 270 271 Improve implementation of parallel equal() 272 * include/pstl/algorithm_impl.h 273 (__internal::__brick_equal): use "4 iterator" version of 274 std::equal(). 275 (__internal::__brick_equal): use simd for random access 276 iterators on unsequenced execution policies. 277 (__internal::__pattern_equal): add "4 iterator" version 278 (__internal::__pattern_equal): dispatch to simd __brick_equal 279 for vector-only execution policies. 280 (__internal::__pattern_equal): dispatch to __parallel_or for 281 parallel execution policies. 282 * include/pstl/glue_algorithm_impl.h 283 (std::equal): dispatch to "4 iterator" version of 284 __internal::__pattern_equal(). 285 2862019-04-17 Jonathan Wakely <jwakely@redhat.com> 287 288 PR libstdc++/90105 289 * include/bits/forward_list.h (operator==): Do not use operator!= to 290 compare elements. 291 (forward_list<T, A>::sort(Comp)): When elements are equal take the one 292 earlier in the list, so that sort is stable. 293 * testsuite/23_containers/forward_list/operations/90105.cc: New test. 294 * testsuite/23_containers/forward_list/comparable.cc: Test with 295 types that meet the minimum EqualityComparable and LessThanComparable 296 requirements. Remove irrelevant comment. 297 298 * include/std/variant (__detail::__variant::_Traits::_S_copy_assign): 299 Do not depend on whether all alternative types are move constructible. 300 (__detail::__variant::_Copy_assign_base::operator=): Remove cv-quals 301 from the operand when deciding whether to perform the assignment. 302 * testsuite/20_util/variant/compile.cc (DeletedMoves): Define type 303 with deleted move constructor and deleted move assignment operator. 304 (default_ctor, copy_ctor, move_ctor, copy_assign, move_assign): Check 305 behaviour of variants with DeletedMoves as an alternative. 306 * testsuite/20_util/variant/run.cc (DeletedMoves): Define same type. 307 (move_ctor, move_assign): Check that moving a variant with a 308 DeletedMoves alternative falls back to copying instead of moving. 309 310 * testsuite/20_util/variant/compile.cc: Remove empty string literals 311 from static_assert declarations. 312 313 * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to 314 actually match its name. 315 (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly. 316 (test_swap()): Fix result for MoveCtorOnly and check 317 MoveCtorAndSwapOnly. 318 319 * include/std/optional (optional::value_or(U&&) &&): Add missing 320 constexpr specifier. 321 * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or 322 for disengaged optionals and rvalue optionals. 323 * testsuite/20_util/optional/observers/4.cc: Likewise. 324 3252019-04-12 Thomas Rodgers <trodgers@redhat.com> 326 327 * include/pstl/algorithm_impl.h: Uglify identfiers. 328 * include/pstl/numeric_impl.h: Uglify identfiers. 329 * include/pstl/parallel_backend_tbb.h: Uglify identfiers. 330 3312019-04-11 Thomas Rodgers <trodgers@redhat.com> 332 333 * include/bits/c++config: 334 Add definition for __PSTL_ASSERT. 335 Add definition for __PSTL_ASSERT_MSG. 336 * include/pstl/algorithm_impl.h: Replace use of assert(). 337 * include/pstl/numeric_impl.h: Replace use of assert(). 338 * include/pstl/parallel_backend_tbb.h: 339 Replace use of assert(). 340 Replace use of __TBB_ASSERT(). 341 * include/pstl/parallel_backend_utils.h: Replace use of assert(). 342 3432019-04-11 Jonathan Wakely <jwakely@redhat.com> 344 345 PR libstdc++/90046 346 * src/c++17/memory_resource.cc 347 (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if 348 needed to allow placing a _Chunk at the end of the buffer. 349 (monotonic_buffer_resource::_M_new_buffer): Remove static_assert. 350 3512019-04-10 Jonathan Wakely <jwakely@redhat.com> 352 353 * doc/xml/faq.xml: Add information about emergency EH pool. 354 * doc/xml/manual/debug.xml: Update list of memory debugging tools. 355 Move outdated information on mt_allocator to a separate section. 356 * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW 357 doesn't affect the default allocator. 358 359 * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix 360 typo. 361 362 PR libstdc++/89851 363 * testsuite/20_util/variant/89851.cc: New test. 364 3652019-04-09 Jonathan Wakely <jwakely@redhat.com> 366 367 * include/std/variant: Adjust whitespace. Add comments. 368 (_Multi_array): Leave primary template undefined. 369 (_Multi_array<_Tp>): Define partial specialization for base case of 370 recursion. 371 (__gen_vtable_impl, __gen_vtable): Remove redundant && from type 372 which is always a reference. 373 (__gen_vtable::_S_apply()): Remove function, inline body into 374 default member initializer. 375 * testsuite/20_util/variant/visit.cc: Test with noncopyable types. 376 377 * include/std/variant (__variant_idx_cookie): Add member type. 378 (__visitor_result_type): Remove. 379 (__do_visit): Use invoke_result instead of __visitor_result_type. 380 * testsuite/20_util/variant/visit.cc: New test. 381 382 PR libstdc++/90008 383 * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove 384 unused capture. 385 * testsuite/20_util/variant/90008.cc: New test. 386 3872019-04-09 Thomas Rodgers <trodgers@redhat.com> 388 389 * include/pstl/algorithm_impl.h: Add namespace qualification. 390 * include/pstl/execution_defs.h: Add namespace qualification. 391 * include/pstl/execution_impl.h: Add namespace qualification. 392 * include/pstl/numeric_impl.h: Add namespace qualification. 393 * include/pstl/parallel_backend_tbb.h: Add namespace qualification. 394 * include/pstl/unseq_backend_simd.h: Add namespace qualification. 395 * include/pstl/parallel_backend_utils.h: Include <cassert>. 396 3972019-04-08 Ville Voutilainen <ville.voutilainen@gmail.com> 398 399 Fix visit<R> for variant. 400 * include/std/variant (__do_visit): Add a template parameter 401 for enforcing same return types for visit. 402 (__gen_vtable_impl): Likewise. 403 (_S_apply_single_alt): Adjust. 404 (__visit_invoke_impl): New. Handle casting to void. 405 (__do_visit_invoke): New. Enforces same return types. 406 (__do_visit_invoke_r): New. Converts return types. 407 (__visit_invoke): Adjust. 408 (__gen_vtable): Add a template parameter for enforcing 409 same return types for visit. 410 * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with 411 different return types. 412 * testsuite/20_util/variant/visit_neg.cc: New. Ensures that 413 visitors with different return types don't accidentally 414 compile with regular visitation. 415 4162019-04-08 Christophe Lyon <christophe.lyon@linaro.org> 417 418 * testsuite/27_io/filesystem/iterators/caching.cc: Add 419 dg-require-filesystem-ts. 420 4212019-04-05 Jonathan Wakely <jwakely@redhat.com> 422 423 * doc/xml/manual/status_cxx2020.xml: Update status. 424 * include/std/variant (visit<R>): Define for C++2a (P0655R1). 425 * testsuite/20_util/variant/visit_r.cc: New test. 426 427 * include/bits/fs_dir.h (directory_iterator::operator*) 428 (directory_iterator::operator->): Add noexcept. 429 (operator==, operator!=): Replace namespace-scope equality operators 430 for directory iterators with hidden friends. 431 432 PR libstdc++/89986 433 * config/abi/pre/gnu.ver: Add missing exports. 434 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test 435 increment member. 436 437 * config/abi/pre/gnu.ver: Export new symbols. 438 * include/bits/fs_dir.h (recursive_directory_iterator::options()) 439 (recursive_directory_iterator::recursion_pending()) 440 (recursive_directory_iterator::disable_recursion_pending()): Remove 441 inline definitions. Make noexcept. 442 (recursive_directory_iterator::depth()) 443 (recursive_directory_iterator::operator*()) 444 (recursive_directory_iterator::operator->()): Make noexcept. 445 (recursive_directory_iterator::_M_options) 446 (recursive_directory_iterator::_M_pending): Remove data members. 447 * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members. 448 (recursive_directory_iterator::recursive_directory_iterator): Remove 449 ctor-initializer. Use new constructor for _Dir_stack. 450 (recursive_directory_iterator::options()) 451 (recursive_directory_iterator::recursion_pending()) 452 (recursive_directory_iterator::disable_recursion_pending()): Add 453 non-inline definitions. 454 (recursive_directory_iterator::depth()): Make noexcept. 455 (recursive_directory_iterator::increment(error_code&)) 456 (recursive_directory_iterator::pop(error_code&)): Adjust to new 457 location of options and recursion_pending members. 458 * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test. 459 * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add 460 user-declared move constructor and assignment operator, to make the 461 type move-only. 462 463 * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle 464 d_type == DT_UNKNOWN immediately. 465 (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown 466 handling here. 467 * testsuite/27_io/filesystem/iterators/caching.cc: New test. 468 469 * include/bits/fs_path.h (path::operator=(path&&)): Check for self 470 assignment. 471 * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise. 472 * testsuite/27_io/filesystem/path/assign/copy.cc: Test self 473 assignment. 474 475 PR libstdc++/87431 (again) 476 * include/bits/basic_string.h (__variant::_Never_valueless_alt): 477 Define partial specialization for basic_string. 478 * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for 479 shared_ptr and weak_ptr. 480 * include/bits/std_function.h (_Never_valueless_alt): Likewise for 481 function. 482 * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for 483 vector. 484 * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for 485 unique_ptr. 486 * include/debug/vector (_Never_valueless_alt): Likewise for debug 487 vector. 488 * include/std/any (_Never_valueless_alt): Define explicit 489 specialization for any. 490 * include/std/variant (_Never_valueless_alt): Define primary template. 491 (__never_valueless): Use _Never_valueless_alt instead of 492 is_trivially_copyable. 493 (variant::emplace<N>(Args&&...)): Add special case for non-throwing 494 initializations to avoid try-catch overhead. Add special case for 495 scalars produced by potentially-throwing conversions. Use 496 _Never_valueless_alt instead of is_trivially_copyable for the 497 remaining strong exception-safety cases. 498 (variant::emplace<N>(initializer_list<U>, Args&&...)): Likewise. 499 * testsuite/20_util/variant/87431.cc: Run both test functions. 500 * testsuite/20_util/variant/exception_safety.cc: New test. 501 * testsuite/20_util/variant/run.cc: Use pmr::string instead of string, 502 so the variant becomes valueless. 503 5042019-04-03 Jonathan Wakely <jwakely@redhat.com> 505 506 PR libstdc++/85184 507 * include/std/variant (_Copy_assign_base, _Move_assign_base, variant): 508 Remove assertions. 509 (variant::emplace<_Tp>): Return result of emplace<N> directly. 510 511 * include/std/string (__hash_string_base): New class template defining 512 operator() for hashing strings. 513 (hash<pmr::string>, hash<pmr::u8string>, hash<pmr::u16string>) 514 (hash<pmr::u32string>, hash<pmr::wstring>): Define for C++17. 515 * testsuite/21_strings/basic_string/hash/hash.cc: New test. 516 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test. 517 5182019-04-01 Ville Voutilainen <ville.voutilainen@gmail.com> 519 520 Use single-visitation in variant assignment and swap and relops. 521 Also use indices instead of types when checking whether 522 variants hold the same thing. 523 * include/std/variant (__do_visit): Add a template parameter 524 for index visitation, invoke with indices if index visitation 525 is used. 526 (__variant_idx_cookie): New. 527 (__visit_with_index): Likewise. 528 (_Copy_assign_base::operator=): Do single-visitation with 529 an index visitor. 530 (_Move_assign_base::operator=): Likewise. 531 (_Extra_visit_slot_needed): Adjust. 532 (__visit_invoke): Call with indices if it's an index visitor. 533 (relops): Do single-visitation with an index visitor. 534 (swap): Likewise. 535 (__visitor_result_type): New. 536 5372019-03-30 Eric Botcazou <ebotcazou@adacore.com> 538 539 * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported. 540 5412019-03-28 Ville Voutilainen <ville.voutilainen@gmail.com> 542 543 Don't revisit a variant we are already visiting. 544 * include/std/variant (__variant_construct_single): New. 545 (__variant_construct): Use it. 546 (_M_destructive_move): Likewise. 547 (_M_destructive_copy): Likewise. 548 (_Copy_assign_base::operator=): Adjust. 549 (_Move_assign_base::operator=): Likewise. 550 (swap): Likewise. 551 5522019-03-26 Jonathan Wakely <jwakely@redhat.com> 553 554 PR libstdc++/85965 555 * include/bits/hashtable.h (_Hashtable): Move static assertions to 556 destructor so they are not evaluated until the _Key type is complete. 557 * include/bits/stl_tree.h (_Rb_tree): Likewise. 558 * testsuite/23_containers/set/85965.cc: New test. 559 * testsuite/23_containers/unordered_set/85965.cc: New test. 560 * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors 561 with regexp matching the corresponding _Rb_tree specialization. 562 * testsuite/23_containers/multimap/48101_neg.cc: Likewise. 563 * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error. 564 * testsuite/23_containers/set/48101_neg.cc: Likewise. 565 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise. 566 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise. 567 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise. 568 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise. 569 5702019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com> 571 572 PR libstdc++/89825 573 Fix based on a suggestion by Antony Polukhin. 574 * include/std/variant (__never_valueless): New. 575 (_M_valid): Use it. 576 (_Extra_visit_slot_needed): New. 577 (_Multi_array): Use it. 578 (_S_apply_all_alts): Likewise. 579 5802019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com> 581 582 PR libstdc++/89824 583 Fix based on a suggestion by Antony Polukhin. 584 * include/std/variant (__gen_vtable): Don't reserve an 585 additional table slot, _Multi_array already does that. 586 5872019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com> 588 589 PR libstdc++/89816 590 Fix based on a suggestion by Antony Polukhin. 591 * include/std/variant (__variant_construct): Capture a pointer 592 to the storage and visit just one variant. 593 5942019-03-22 Jonathan Wakely <jwakely@redhat.com> 595 596 * doc/xml/manual/backwards_compatibility.xml: Remove link to 597 Doxygen-generated pages with unstable URL. 598 * doc/xml/manual/concurrency_extensions.xml: Likewise. 599 * doc/xml/manual/extensions.xml: Likewise. 600 * doc/xml/manual/parallel_mode.xml: Likewise. 601 * doc/xml/manual/support.xml: Likewise. 602 603 * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to 604 avoid -Wconversion warnings. 605 6062019-03-21 Thomas Rodgers <trodgers@redhat.com> 607 608 * include/Makefile.am (std_header): Add ${std_srcdir}/execution. 609 (pstl_srcdir, pstl_builddir, pstl_headers): New variables. 610 (allstamped): Add stamp-pstl. 611 (install-headers): Add ptsl_builddir. 612 * include/Makefile.in: Regenerate. 613 * include/bits/c++config: Add pstl configuration. 614 * include/pstl/LICENSE.txt: New file. 615 * include/pstl/algorithm_fwd.h: New file. 616 * include/pstl/algorithm_impl.h: New file. 617 * include/pstl/execution_defs.h: New file. 618 * include/pstl/execution_impl.h: New file. 619 * include/pstl/glue_algorithm_defs.h: New file. 620 * include/pstl/glue_algorithm_impl.h: New file. 621 * include/pstl/glue_execution_defs.h: New file. 622 * include/pstl/glue_memory_defs.h: New file. 623 * include/pstl/glue_memory_impl.h: New file. 624 * include/pstl/glue_numeric_defs.h: New file. 625 * include/pstl/glue_numeric_impl.h: New file. 626 * include/pstl/memory_impl.h: New file. 627 * include/pstl/numeric_fwd.h: New file. 628 * include/pstl/numeric_impl.h: New file. 629 * include/pstl/parallel_backend.h: New file. 630 * include/pstl/parallel_backend_tbb.h: New file. 631 * include/pstl/parallel_backend_utils.h: New file. 632 * include/pstl/parallel_impl.h: New file. 633 * include/pstl/pstl_config.h: New file. 634 * include/pstl/unseq_backend_simd.h: New file. 635 * include/pstl/utils.h: New file. 636 * include/std/algorithm: Include parallel algorithm implementations. 637 * include/std/execution: New file. 638 * include/std/memory: Include parallel algorithm implementations. 639 * include/std/numeric: Include parallel algorithm implementations. 640 * include/std/version: Add parallel algorithms feature test macro. 641 * testsuite/util/pstl/pstl_test_config.h: New file. 642 * testsuite/util/pstl/test_utils.h: New file. 643 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file. 644 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file. 645 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file. 646 * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file. 647 * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file. 648 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file. 649 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file. 650 * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file. 651 * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file. 652 * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file. 653 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file. 654 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file. 655 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file. 656 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file. 657 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file. 658 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file. 659 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file. 660 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file. 661 * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file. 662 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file. 663 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file. 664 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file. 665 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file. 666 * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file. 667 * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file. 668 * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file. 669 * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file. 670 * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file. 671 * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file. 672 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file. 673 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file. 674 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file. 675 * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file. 676 * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file. 677 * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file. 678 * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file. 679 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file. 680 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file. 681 * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file. 682 * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file. 683 * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file. 684 * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file. 685 * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file. 686 * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file. 687 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file. 688 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file. 689 * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file. 690 * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file. 691 * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file. 692 * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file. 693 * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file. 694 * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file. 695 * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file. 696 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file. 697 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file. 698 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file. 699 * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file. 700 * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file. 701 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file. 702 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file. 703 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file. 704 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file. 705 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file. 706 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file. 707 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file. 708 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file. 709 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file. 710 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file. 711 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file. 712 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file. 713 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file. 714 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file. 715 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file. 716 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file. 717 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file. 718 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file. 719 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file. 720 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file. 721 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file. 722 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file. 723 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file. 724 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file. 725 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file. 726 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file. 727 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file. 728 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file. 729 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file. 730 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file. 731 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file. 732 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file. 733 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file. 734 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file. 735 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file. 736 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file. 737 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file. 738 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file. 739 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file. 740 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file. 741 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file. 742 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file. 743 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file. 744 * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file. 745 * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file. 746 * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file. 747 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file. 748 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file. 749 7502019-03-21 Jonathan Wakely <jwakely@redhat.com> 751 752 * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__] 753 (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre) 754 (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1) 755 (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f) 756 (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l) 757 (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j) 758 (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf) 759 (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1) 760 (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3) 761 (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef) 762 (hermitel, laguerre, laguerref, laguerrel, legendre, legendref) 763 (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel) 764 (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel) 765 (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations 766 when the special functions IS is enabled, not for C++17. 767 * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc: 768 Replace with ... 769 * testsuite/26_numerics/headers/cmath/functions_global.cc: New test, 770 without checks for special functions in C++17. 771 * testsuite/26_numerics/headers/cmath/special_functions_global.cc: 772 New test. 773 774 PR libstdc++/88066 775 * include/backward/hash_map: Use <> for includes not "". 776 * include/backward/hash_set: Likewise. 777 * include/backward/strstream: Likewise. 778 * include/tr1/bessel_function.tcc: Likewise. 779 * include/tr1/exp_integral.tcc: Likewise. 780 * include/tr1/legendre_function.tcc: Likewise. 781 * include/tr1/modified_bessel_func.tcc: Likewise. 782 * include/tr1/riemann_zeta.tcc: Likewise. 783 7842019-03-19 Jonathan Wakely <jwakely@redhat.com> 785 786 * doc/xml/manual/allocator.xml: Link to table documenting evolution 787 of extension allocators. 788 * doc/xml/manual/evolution.xml: Use angle brackets for header names. 789 Document new headers in 7.2, 8.1 and 9.1 releases. 790 * doc/xml/manual/using.xml: Adjust link target for new_allocator. 791 * doc/html/*: Regenerate. 792 7932019-03-12 John David Anglin <dave.anglin@bell.net> 794 795 PR libstdc++/89461 796 * testsuite/lib/libstdc++.exp: Locate libatomic. 797 * testsuite/lib/dg-options.exp (add_options_for_libatomic): New. 798 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add 799 libatomic options. 800 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise. 801 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise. 802 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise. 803 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise. 804 8052019-03-11 Jonathan Wakely <jwakely@redhat.com> 806 807 PR libstdc++/89460 808 * configure.ac: Check for sockatmark. 809 * crossconfig.m4: Check for sockatmark. 810 * config.h.in: Regenerate. 811 * configure: Regenerate. 812 * include/experimental/internet (address_v4::_S_hton): Rename 813 overloaded functions to _S_hton_16 and _S_ntoh_16. 814 (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32. 815 (basic_endpoint): Adjust calls to _S_hton and _S_ntoh. 816 * include/experimental/socket (basic_socket::at_mark): Check 817 _GLIBCXX_HAVE_SOCKATMARK. 818 819 * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use 820 const variables instead of macros. 821 822 PR libstdc++/89629 823 * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes): 824 Use correct type for len_aligned. 825 * testsuite/20_util/hash/89629.cc: New test. 826 8272019-03-11 Jakub Jelinek <jakub@redhat.com> 828 829 PR libstdc++/89641 830 * include/std/atomic (atomic<T>::store, atomic<T>::load, 831 atomic<T>::exchange, atomic<T>::compare_exchange_weak, 832 atomic<T>::compare_exchange_strong): Cast __m or __s and __f to int. 833 * include/bits/atomic_base.h (__atomic_base<T>::operator++, 834 __atomic_base<T>::operator--, __atomic_base<T>::operator+=, 835 __atomic_base<T>::operator-=, __atomic_base<T>::operator&=, 836 __atomic_base<T>::operator|=, __atomic_base<T>::operator^=, 837 __atomic_base<T*>::operator++, __atomic_base<T*>::operator--, 838 __atomic_base<T*>::operator+=, __atomic_base<T*>::operator-=): Cast 839 memory_order_seq_cst to int. 840 8412019-03-08 Jonathan Wakely <jwakely@redhat.com> 842 843 * doc/xml/manual/using.xml: Use link element instead of xref. 844 * doc/html/*: Regenerate. 845 846 * include/bits/fs_path.h (path::format): Add fixed underlying type. 847 8482019-03-08 François Dumont <fdumont@gcc.gnu.org> 849 850 PR libstdc++/89477 851 * include/debug/map.h (map): Use _RequireNotAllocator to constrain 852 parameters in deduction guides. 853 * include/debug/multimap.h (multimap): Likewise. 854 * include/debug/set.h (multimap): Likewise. 855 * include/debug/multiset.h (multimap): Likewise. 856 * include/debug/unordered_map (unordered_map): Likewise. 857 (unordered_multimap): Likewise. 858 * include/debug/unordered_set (unordered_set): Likewise. 859 (unordered_multiset): Likewise. 860 861 PR libstdc++/89608 862 * include/debug/unordered_map (unordered_map<>::_M_check_rehashed): 863 Invalidate all iterators in case of rehash. 864 (unordered_multimap<>::_M_check_rehashed): Likewise. 865 * include/debug/unordered_set 866 (unordered_set<>::_M_check_rehashed): Likewise. 867 (unordered_multiset<>::_M_check_rehashed): Likewise. 868 * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New. 869 8702019-03-07 Andreas Schwab <schwab@suse.de> 871 872 * config/abi/post/riscv64-linux-gnu: New directory. 873 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file. 874 8752019-03-07 Jonathan Wakely <jwakely@redhat.com> 876 877 * testsuite/20_util/function_objects/bind_front/1.cc: Change from 878 compile test to run. Fix typo. 879 880 * doc/xml/manual/status_cxx2020.xml: Update C++20 status. 881 * doc/html/*: Regenerate. 882 883 P0356R5 Simplified partial function application 884 * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define 885 helpers for bind_front. 886 (bind_front, __cpp_lib_bind_front): Define. 887 * testsuite/20_util/function_objects/bind_front/1.cc: New test. 888 8892019-03-06 Jonathan Wakely <jwakely@redhat.com> 890 891 * include/std/type_traits (__cpp_lib_bounded_array_traits): Define. 892 * include/std/version (__cpp_lib_bounded_array_traits): Likewise. 893 * testsuite/20_util/is_bounded_array/value.cc: Check for macro. 894 * testsuite/20_util/is_unbounded_array/value.cc: Likewise. 895 8962019-03-06 Edward Smith-Rowland <3dw4rd@verizon.net> 897 898 PR libstdc++/86655 - std::assoc_legendre should not constrain 899 the value of m (or x). 900 * include/tr1/legendre_function.tcc (__assoc_legendre_p, 901 __sph_legendre): If degree > order Don't throw, return 0. 902 (__legendre_p, __assoc_legendre_p): Don't constrain x either. 903 * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test. 904 * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test. 905 * testsuite/tr1/5_numerical_facilities/special_functions/ 906 02_assoc_legendre/pr86655.cc: New test. 907 * testsuite/tr1/5_numerical_facilities/special_functions/ 908 22_sph_legendre/pr86655.cc: New test. 909 9102019-03-06 Ville Voutilainen <ville.voutilainen@gmail.com> 911 912 Rewrite variant. 913 Also PR libstdc++/85517 914 * include/std/variant (__do_visit): New. 915 (__variant_cast): Likewise. 916 (__variant_cookie): Likewise. 917 (__erased_*): Remove. 918 (_Variant_storage::_S_vtable): Likewise. 919 (_Variant_storage::__M_reset_impl): Adjust to use __do_visit. 920 (_Variant_storage::__M_reset): Adjust. 921 (__variant_construct): New. 922 (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use 923 __variant_construct. 924 (_Move_ctor_base(_Move_ctor_base&&)): Likewise. 925 (_Move_ctor_base::__M_destructive_copy): New. 926 (_Move_ctor_base::__M_destructive_move): Adjust to use 927 __variant_construct. 928 (_Copy_assign_base::operator=): Adjust to use __do_visit. 929 (_Copy_assign_alias): Adjust to check both copy assignment 930 and copy construction for triviality. 931 (_Move_assign_base::operator=): Adjust to use __do_visit. 932 (_Multi_array): Add support for visitors that accept and return 933 a __variant_cookie. 934 (__gen_vtable_impl::_S_apply_all_alts): Likewise. 935 (__gen_vtable_impl::_S_apply_single_alt): Likewise. 936 (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate 937 a __variant_cookie temporary for a variant that is valueless and.. 938 (__gen_vtable_impl::__visit_invoke): ..adjust here. 939 (__gen_vtable::_Array_type): Conditionally make space for 940 the __variant_cookie visitor case. 941 (__variant_construct_by_index): New. 942 (get_if): Adjust to use std::addressof. 943 (relops): Adjust to use __do_visit. 944 (variant): Add __variant_cast and __variant_construct_by_index 945 as friends. 946 (variant::emplace): Use _M_reset() and __variant_construct_by_index 947 instead of self-destruction. 948 (variant::swap): Adjust to use __do_visit. 949 (visit): Reimplement in terms of __do_visit. 950 (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit. 951 * testsuite/20_util/variant/compile.cc: Adjust. 952 * testsuite/20_util/variant/run.cc: Likewise. 953 9542019-03-06 Jonathan Wakely <jwakely@redhat.com> 955 956 * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to 957 constant. 958 * testsuite/experimental/feat-char8_t.cc: Likewise. 959 960 * include/std/type_traits [C++20] (is_bounded_array) 961 (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v): 962 Define. 963 * testsuite/20_util/is_bounded_array/requirements/ 964 explicit_instantiation.cc: New test. 965 * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New 966 test. 967 * testsuite/20_util/is_bounded_array/value.cc: New test. 968 * testsuite/20_util/is_unbounded_array/requirements/ 969 explicit_instantiation.cc: New test. 970 * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New 971 * test. 972 * testsuite/20_util/is_unbounded_array/value.cc: New test. 973 974 * include/bits/ptr_traits.h [C++20] (pointer_traits<T*>::pointer_to): 975 Add constexpr. 976 * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test. 977 9782019-03-05 Jonathan Wakely <jwakely@redhat.com> 979 980 * include/c_compatibility/math.h [C++20] (lerp): Add using 981 declaration. 982 * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define. 983 (__lerp): Define function template to implement lerp. 984 (lerp(float, float, float), lerp(double, double, double)) 985 (lerp(long double, long double, long double)): Define for C++20. 986 * include/std/numeric [C++20] (__cpp_lib_interpolate): Define. 987 (midpoint(T, T), midpoint(T*, T*)): Define. 988 * include/std::version [C++20] (__cpp_lib_interpolate): Define. 989 * testsuite/26_numerics/lerp.cc: New test. 990 * testsuite/26_numerics/midpoint/floating.cc: New test. 991 * testsuite/26_numerics/midpoint/integral.cc: New test. 992 * testsuite/26_numerics/midpoint/pointer.cc: New test. 993 9942019-03-04 Edward Smith-Rowland <3dw4rd@verizon.net> 995 996 PR libstdc++/88996 Implement P0439R0 997 Make std::memory_order a scoped enumeration. 998 * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum, 999 add variables for the old enumerators. Adjust calls. 1000 * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test. 1001 * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test. 1002 10032019-03-04 Jonathan Wakely <jwakely@redhat.com> 1004 1005 * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do 1006 directive. 1007 1008 * include/std/memory_resource (polymorphic_allocator): Add default 1009 template argument for C++20. 1010 (polymorphic_allocator::allocate_bytes) 1011 (polymorphic_allocator::deallocate_bytes) 1012 (polymorphic_allocator::allocate_object) 1013 (polymorphic_allocator::deallocate_object) 1014 (polymorphic_allocator::new_object) 1015 (polymorphic_allocator::delete_object): New member functions for 1016 C++20. 1017 * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New 1018 test. 1019 10202019-03-03 Jonathan Wakely <jwakely@redhat.com> 1021 1022 PR libstdc++/89562 1023 * src/filesystem/ops-common.h (do_copy_file): Open files in binary 1024 mode for mingw. 1025 10262019-03-01 Jonathan Wakely <jwakely@redhat.com> 1027 1028 * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource) 1029 [!__cpp_sized_deallocation]: Do not pass size to operator delete. 1030 1031 * include/std/memory (uses_allocator_construction_args): New set of 1032 overloaded functions. 1033 (make_obj_using_allocator, uninitialized_construct_using_allocator): 1034 New functions. 1035 * include/std/memory_resource (polymorphic_allocator::construct) 1036 [__cplusplus > 201703l]: Replace all overloads with a single function 1037 using uses_allocator_construction_args. 1038 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New 1039 test. 1040 * testsuite/20_util/uses_allocator/make_obj.cc: New test. 1041 10422019-02-27 Jonathan Wakely <jwakely@redhat.com> 1043 1044 PR libstdc++/89466 1045 * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local 1046 stylesheet directories before check for xsltproc. Try to use 1047 xmlcatalog to find local stylesheet directory before trying hardcoded 1048 paths. Add path used by suse to hardcoded paths. Adjust xsltproc 1049 check to look for the same stylesheet as doc/Makefile.am uses. Don't 1050 use xsltproc if xmlcatalog fails to find a local stylesheet. 1051 * configure.ac: Check for xmlcatalog. 1052 * Makefile.in: Regenerate. 1053 * configure: Likewise. 1054 * doc/Makefile.in: Likewise. 1055 * include/Makefile.in: Likewise. 1056 * libsupc++/Makefile.in: Likewise. 1057 * po/Makefile.in: Likewise. 1058 * python/Makefile.in: Likewise. 1059 * src/Makefile.in: Likewise. 1060 * src/c++11/Makefile.in: Likewise. 1061 * src/c++17/Makefile.in: Likewise. 1062 * src/c++98/Makefile.in: Likewise. 1063 * src/filesystem/Makefile.in: Likewise. 1064 * testsuite/Makefile.in: Likewise. 1065 10662019-02-26 Jonathan Wakely <jwakely@redhat.com> 1067 1068 PR libstdc++/89477 1069 * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for 1070 container deduction guides. 1071 * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise. 1072 * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain 1073 parameters in deduction guides. 1074 * include/bits/stl_multimap.h (multimap): Likewise. 1075 * include/bits/stl_multiset.h (multiset): Likewise. 1076 * include/bits/stl_queue.h (queue, priority_queue): Likewise. 1077 * include/bits/stl_set.h (set): Likewise. 1078 * include/bits/stl_stack.h (stack): Likewise. 1079 * include/bits/unordered_map.h (unordered_map, unordered_multimap): 1080 use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to 1081 constrain parameters in deduction guides. 1082 * include/bits/unordered_set.h (unordered_set, unordered_multiset): 1083 Likewise. 1084 * testsuite/23_containers/map/cons/deduction.cc: Test additional 1085 deduction cases. 1086 * testsuite/23_containers/multiset/cons/deduction.cc: Likewise. 1087 * testsuite/23_containers/set/cons/deduction.cc: Likewise. 1088 * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise. 1089 * testsuite/23_containers/unordered_multimap/cons/deduction.cc: 1090 Likewise. 1091 * testsuite/23_containers/unordered_multiset/cons/deduction.cc: 1092 Likewise. 1093 * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise. 1094 1095 PR libstdc++/89416 1096 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change 1097 to class template and partial specialization using void_t. 1098 (__is_copy_insertable, __is_move_insertable): Adjust base class. 1099 11002019-02-24 Jonathan Wakely <jwakely@redhat.com> 1101 1102 PR libstdc++/89416 1103 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make 1104 copy and move members public. 1105 11062019-02-23 Jonathan Wakely <jwakely@redhat.com> 1107 1108 * include/std/type_traits (__underlying_type_impl): New helper to 1109 make underlying_type SFINAE-friendly. 1110 (underlying_type): Derive from __underlying_type_impl. 1111 * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New 1112 test. 1113 1114 PR libstdc++/89446 1115 * include/bits/char_traits.h (__constant_char_array): Check index is 1116 in range before dereferencing. 1117 (char_traits<char>::compare, char_traits<char>::find) 1118 (char_traits<char8_t>::compare, char_traits<char8_t>::find): Return 1119 immediately if n is zero. 1120 (char_traits<wchar_t>::compare, char_traits<wchar_t>::find): Likewise. 1121 Remove workarounds for PR 67026. 1122 * testsuite/21_strings/basic_string_view/operators/char/89446.cc: 1123 New test. 1124 * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc: 1125 New test. 1126 11272019-02-22 Eric Botcazou <ebotcazou@adacore.com> 1128 1129 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust. 1130 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise. 1131 11322019-02-22 Jakub Jelinek <jakub@redhat.com> 1133 1134 PR libstdc++/89402 1135 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return 1136 type to std::size_t and argument to type to long double. 1137 11382019-02-22 Eric Botcazou <ebotcazou@adacore.com> 1139 1140 * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux. 1141 * config/abi/post/sparc64-linux-gnu: New directory. 1142 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file. 1143 * config/abi/post/sparc64-linux-gnu/32: New directory. 1144 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file. 1145 11462019-02-21 Jonathan Wakely <jwakely@redhat.com> 1147 1148 * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test. 1149 * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New 1150 test. 1151 11522019-02-22 Tom Honermann <tom@honermann.net> 1153 1154 * python/libstdcxx/v6/printers.py (register_type_printers): Add type 1155 printers for u8string and u8string_view. 1156 11572019-02-22 Tom Honermann <tom@honermann.net> 1158 1159 * testsuite/18_support/byte/ops.cc: Validate 1160 std::to_integer<char8_t>, std::to_integer<char16_t>, and 1161 std::to_integer<char32_t>. 1162 * testsuite/18_support/numeric_limits/dr559.cc: Validate 1163 std::numeric_limits<char8_t>. 1164 * testsuite/18_support/numeric_limits/lowest.cc: Validate 1165 std::numeric_limits<char8_t>::lowest(). 1166 * testsuite/18_support/numeric_limits/max_digits10.cc: Validate 1167 std::numeric_limits<char8_t>::max_digits10. 1168 * testsuite/18_support/type_info/fundamental.cc: Validate 1169 typeinfo for char8_t. 1170 * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating 1171 std::from_chars with char8_t. 1172 * testsuite/20_util/hash/requirements/explicit_instantiation.cc: 1173 Validate explicit instantiation of std::hash<char8_t>. 1174 * testsuite/20_util/is_integral/value.cc: Validate 1175 std::is_integral<char8_t>. 1176 * testsuite/20_util/make_signed/requirements/typedefs-4.cc: 1177 Validate std::make_signed<char8_t>. 1178 * testsuite/21_strings/basic_string/cons/char/deduction.cc: 1179 Validate u8string construction from char8_t sources. 1180 * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate 1181 std::pmr::u8string. 1182 * testsuite/21_strings/basic_string_view/operations/compare/ 1183 char/70483.cc: Validate substr operations on u8string_view. 1184 * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that 1185 the u8string_view typedef is defined. 1186 * testsuite/21_strings/char_traits/requirements/ 1187 constexpr_functions.cc: Validate char_traits<char8_t> constexpr 1188 member functions. 1189 * testsuite/21_strings/char_traits/requirements/ 1190 constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17 1191 constexpr member functions. 1192 * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate 1193 that the u8string typedef is defined. 1194 * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence 1195 of the std::codecvt<char16_t, char8_t, std::mbstate_t> and 1196 std::codecvt<char32_t, char8_t, std::mbstate_t> facets. 1197 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line 1198 numbers. 1199 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. 1200 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: 1201 Likewise. 1202 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise. 1203 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc: 1204 Validate std::atomic<char8_t>::is_always_lock_free 1205 * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc: 1206 Update line numbers. 1207 * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc: 1208 Likewise. 1209 * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc: 1210 Likewise. 1211 * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc: 1212 Validate std::experimental::pmr::u8string. 1213 * testsuite/experimental/string_view/typedefs.cc: Validate that the 1214 u8string_view typedef is defined. 1215 * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and 1216 char32_t to the typelists. 1217 12182019-02-22 Tom Honermann <tom@honermann.net> 1219 1220 * include/ext/typelist.h: Constrain a partial specialization of 1221 typelist::detail::append_ to only match chain<T1,T2>. 1222 12232019-02-21 Jonathan Wakely <jwakely@redhat.com> 1224 1225 PR libstdc++/89416 1226 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace 1227 class template with class. Replace move and copy member types with 1228 member alias templates, so they are only instantiated when needed. 1229 (__is_copy_insertable, __is_move_insertable): Adjust base class. 1230 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable 1231 test for C++11/14/17 as well. 1232 * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New 1233 test. 1234 12352019-02-20 Jakub Jelinek <jakub@redhat.com> 1236 1237 PR libstdc++/89402 1238 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add 1239 _GLIBCXX_PURE to the alias declaration. 1240 12412019-02-19 Jonathan Wakely <jwakely@redhat.com> 1242 1243 * testsuite/21_strings/basic_string/literals/types.cc 1244 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal. 1245 * testsuite/21_strings/basic_string/literals/values.cc 1246 [_GLIBCXX_USE_CHAR8_T]: Likewise. 1247 * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals 1248 potentially having different type. 1249 * testsuite/22_locale/codecvt/char32_t.cc: Likewise. 1250 * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal 1251 to char. 1252 * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise. 1253 * testsuite/22_locale/codecvt/utf8.cc: Likewise. 1254 * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from 1255 string literals only using basic character set. 1256 * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other 1257 u8 literals to char. 1258 * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]: 1259 Test ATOMIC_CHAR8_T_LOCK_FREE. 1260 Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test. 1261 * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc 1262 [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t. 1263 * testsuite/experimental/string_view/literals/types.cc 1264 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8 1265 literal. 1266 * testsuite/experimental/string_view/literals/values.cc 1267 [_GLIBCXX_USE_CHAR8_T]: Likewise. 1268 12692019-02-19 Tom Honermann <tom@honermann.net> 1270 1271 * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned 1272 from char16_32_t.cc; validates numeric_limits<char8_t>. 1273 * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New 1274 test cloned from types.cc; validates operator""s for char8_t 1275 returns u8string. 1276 * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New 1277 test cloned from values.cc; validates construction and comparison 1278 of u8string values. 1279 * testsuite/21_strings/basic_string/requirements/ 1280 /explicit_instantiation/char8_t/1.cc: New test cloned from 1281 char16_t/1.cc; validates explicit instantiation of 1282 basic_string<char8_t>. 1283 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc: 1284 New test cloned from types.cc; validates operator""sv for char8_t 1285 returns u8string_view. 1286 * testsuite/21_strings/basic_string_view/literals/ 1287 values-char8_t.cc: New test cloned from values.cc; validates 1288 construction and comparison of u8string_view values. 1289 * testsuite/21_strings/basic_string_view/requirements/ 1290 explicit_instantiation/char8_t/1.cc: New test cloned from 1291 char16_t/1.cc; validates explicit instantiation of 1292 basic_string_view<char8_t>. 1293 * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc: 1294 New test cloned from char16_t/65049.cc; validates that 1295 char_traits<char8_t> is not vulnerable to the concerns in PR65049. 1296 * testsuite/21_strings/char_traits/requirements/char8_t/ 1297 typedefs.cc: New test cloned from char16_t/typedefs.cc; validates 1298 that char_traits<char8_t> member typedefs are present and correct. 1299 * testsuite/21_strings/char_traits/requirements/ 1300 explicit_instantiation/char8_t/1.cc: New test cloned from 1301 char16_t/1.cc; validates explicit instantiation of 1302 char_traits<char8_t>. 1303 * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned 1304 from char16_t.cc: validates 1305 codecvt<char16_t, char8_t, mbstate_t>. 1306 * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned 1307 from char32_t.cc: validates 1308 codecvt<char32_t, char8_t, mbstate_t>. 1309 * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from 1310 utf8.cc; validates codecvt<char16_t, char8_t, std::mbstate_t> and 1311 codecvt<char32_t, char8_t, std::mbstate_t>. 1312 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New 1313 test cloned from string.cc; validates filesystem::path construction 1314 from char8_t input. 1315 * testsuite/experimental/feat-char8_t.cc: New test; validates that 1316 the __cpp_lib_char8_t feature test macro is defined with the 1317 correct value. 1318 * testsuite/experimental/filesystem/path/native/string-char8_t.cc: 1319 New test cloned from string.cc; validates filesystem::path 1320 construction from char8_t input. 1321 * testsuite/experimental/string_view/literals/types-char8_t.cc: New 1322 test cloned from types.cc; validates operator""sv for char8_t 1323 returns u8string_view. 1324 * testsuite/experimental/string_view/literals/values-char8_t.cc: 1325 New test cloned from values.cc; validates construction and 1326 comparison of u8string_view values. 1327 * testsuite/experimental/string_view/requirements/ 1328 explicit_instantiation/char8_t/1.cc: New test cloned from 1329 char16_t/1.cc; validates explicit instantiation of 1330 basic_string_view<char8_t>. 1331 * testsuite/ext/char8_t/atomic-1.cc: New test; validates that 1332 ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not 1333 enabled. 1334 13352019-02-19 Tom Honermann <tom@honermann.net> 1336 1337 P0482R5 char8_t: Standard library support 1338 * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add 1339 typeinfo symbols for char8_t. 1340 * config/abi/pre/gnu.ver: Add CXXABI_1.3.12. 1341 (GLIBCXX_3.4.26): Add symbols for specializations of 1342 numeric_limits and codecvt that involve char8_t. 1343 (CXXABI_1.3.12): Add typeinfo symbols for char8_t. 1344 * include/bits/atomic_base.h: Add atomic_char8_t. 1345 * include/bits/basic_string.h: Add std::hash<u8string> and 1346 operator""s(const char8_t*, size_t). 1347 * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and 1348 __cpp_lib_char8_t. 1349 * include/bits/char_traits.h: Add char_traits<char8_t>. 1350 * include/bits/codecvt.h: Add 1351 codecvt<char16_t, char8_t, mbstate_t>, 1352 codecvt<char32_t, char8_t, mbstate_t>, 1353 codecvt_byname<char16_t, char8_t, mbstate_t>, and 1354 codecvt_byname<char32_t, char8_t, mbstate_t>. 1355 * include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to 1356 recognize char8_t as an integral type. 1357 * include/bits/fs_path.h: (path::__is_encoded_char): Recognize 1358 char8_t. 1359 (path::u8string): Return std::u8string when char8_t support is 1360 enabled. 1361 (path::generic_u8string): Likewise. 1362 (path::_S_convert): Handle conversion from char8_t input. 1363 (path::_S_str_convert): Likewise. 1364 * include/bits/functional_hash.h: Add hash<char8_t>. 1365 * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for 1366 char8_t. 1367 * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump 1368 for new char8_t specializations. 1369 * include/bits/localefwd.h: Add missing declarations of 1370 codecvt<char16_t, char, mbstate_t> and 1371 codecvt<char32_t, char, mbstate_t>. Add char8_t declarations 1372 codecvt<char16_t, char8_t, mbstate_t> and 1373 codecvt<char32_t, char8_t, mbstate_t>. 1374 * include/bits/postypes.h: Add u8streampos 1375 * include/bits/stringfwd.h: Add declarations of 1376 char_traits<char8_t> and u8string. 1377 * include/c_global/cstddef: Add __byte_operand<char8_t>. 1378 * include/experimental/bits/fs_path.h (path::__is_encoded_char): 1379 Recognize char8_t. 1380 (path::u8string): Return std::u8string when char8_t support is 1381 enabled. 1382 (path::generic_u8string): Likewise. 1383 (path::_S_convert): Handle conversion from char8_t input. 1384 (path::_S_str_convert): Likewise. 1385 * include/experimental/string: Add u8string. 1386 * include/experimental/string_view: Add u8string_view, 1387 hash<experimental::u8string_view>, and 1388 operator""sv(const char8_t*, size_t). 1389 * include/std/atomic: Add atomic<char8_t> and atomic_char8_t. 1390 * include/std/charconv (__is_int_to_chars_type): Recognize char8_t 1391 as a character type. 1392 * include/std/limits: Add numeric_limits<char8_t>. 1393 * include/std/string_view: Add u8string_view, 1394 hash<experimental::u8string_view>, and 1395 operator""sv(const char8_t*, size_t). 1396 * include/std/type_traits: Add __is_integral_helper<char8_t>, 1397 __make_unsigned<char8_t>, and __make_signed<char8_t>. 1398 * libsupc++/atomic_lockfree_defines.h: Define 1399 ATOMIC_CHAR8_T_LOCK_FREE. 1400 * src/c++11/Makefile.am: Compile with -fchar8_t when compiling 1401 codecvt.cc and limits.cc so that char8_t specializations of 1402 numeric_limits and codecvt and emitted. 1403 * src/c++11/Makefile.in: Likewise. 1404 * src/c++11/codecvt.cc: Define members of 1405 codecvt<char16_t, char8_t, mbstate_t>, 1406 codecvt<char32_t, char8_t, mbstate_t>, 1407 codecvt_byname<char16_t, char8_t, mbstate_t>, and 1408 codecvt_byname<char32_t, char8_t, mbstate_t>. 1409 * src/c++11/limits.cc: Define members of 1410 numeric_limits<char8_t>. 1411 * src/c++98/Makefile.am: Compile with -fchar8_t when compiling 1412 locale_init.cc and localename.cc. 1413 * src/c++98/Makefile.in: Likewise. 1414 * src/c++98/locale_init.cc: Add initialization for the 1415 codecvt<char16_t, char8_t, mbstate_t> and 1416 codecvt<char32_t, char8_t, mbstate_t> facets. 1417 * src/c++98/localename.cc: Likewise. 1418 * testsuite/util/testsuite_abi.cc: Validate ABI bump. 1419 14202019-02-18 Wilco Dijkstra <wdijkstr@arm.com> 1421 1422 * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts. 1423 * 27_io/filesystem/operations/resize_file.cc: Likewise. 1424 * 27_io/filesystem/path/generation/normal2.cc: Likewise. 1425 14262019-02-14 Jonathan Wakely <jwakely@redhat.com> 1427 1428 * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status. 1429 * doc/html/*: Regenerate. 1430 1431 * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table. 1432 * doc/html/*: Regenerate. 1433 1434 * doc/xml/manual/intro.xml: Document LWG 2586 status. 1435 * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue 1436 allocator type in is_constructible checks. 1437 * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error. 1438 * testsuite/20_util/scoped_allocator/dr2586.cc: New test. 1439 * testsuite/20_util/tuple/cons/allocators.cc: Add test using 1440 problematic type from LWG 2586 discussion. 1441 * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error. 1442 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise. 1443 1444 * configure.ac: Check for C11 timespec_get function. 1445 * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd) 1446 (openbsd): Likewise 1447 * config.h.in: Regenerate. 1448 * configure: Regenerate. 1449 * include/c_global/ctime (timespec, timespec_get): Add to namespace 1450 std for C++17 and up. 1451 1452 * doc/xml/manual/intro.xml: Document LWG 2537 status. 1453 * include/bits/stl_queue.h 1454 (priority_queue(const Compare&, const Container&, const Alloc&)) 1455 (priority_queue(const Compare&, Container&&, const Alloc&)): Call 1456 make_heap. 1457 * testsuite/23_containers/priority_queue/dr2537.cc: New test. 1458 1459 * doc/xml/manual/intro.xml: Document LWG 2566 status. 1460 * include/bits/stl_queue.h (queue, priority_queue): Add static 1461 assertions to enforce LWG 2566 requirement on value_type. 1462 * include/bits/stl_stack.h (stack): Likewise. 1463 1464 PR middle-end/89303 1465 * testsuite/20_util/enable_shared_from_this/89303.cc: New test. 1466 1467 * doc/xml/manual/intro.xml: Document LWG 2735 status. 1468 * include/bits/std_abs.h: Add comment about LWG 2735. 1469 * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test. 1470 14712019-02-13 Jonathan Wakely <jwakely@redhat.com> 1472 1473 PR libstdc++/89345 1474 * include/std/version [__cpp_impl_destroying_delete] 1475 (__cpp_lib_destroying_delete): Only define for C++2a and later. 1476 * libsupc++/new [__cpp_impl_destroying_delete] 1477 (__cpp_lib_destroying_delete): Likewise. 1478 (destroying_delete_t, destroying_delete): Likewise, but define even 1479 when __cpp_impl_destroying_delete is not defined. 1480 * testsuite/18_support/destroying_delete.cc: New test. 1481 14822019-02-11 Jonathan Wakely <jwakely@redhat.com> 1483 1484 PR libstdc++/89023 1485 * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test. 1486 * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test. 1487 * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test. 1488 * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove. 1489 14902019-02-09 Jonathan Wakely <jwakely@redhat.com> 1491 1492 PR libstdc++/71044 1493 * include/bits/fs_path.h (path::has_root_name) 1494 (path::has_root_directory, path::has_root_path) 1495 (path::has_relative_path, path::has_parent_path) 1496 (path::has_filename, path::has_stem, path::has_extension) 1497 (path::is_absolute, path::is_relative, path::_M_find_extension): Add 1498 noexcept. 1499 * src/c++17/fs_path.cc (path::has_root_name) 1500 (path::has_root_directory, path::has_root_path) 1501 (path::has_relative_path, path::has_parent_path) 1502 (path::has_filename, path::_M_find_extension): Add noexcept. 1503 15042019-02-06 Jonathan Wakely <jwakely@redhat.com> 1505 1506 PR libstdc++/89102 (partial) 1507 * include/std/type_traits (common_type<>): Define. 1508 (common_type<T>): Derive from common_type<T, T>. 1509 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc: 1510 Test zero-length template argument list. 1511 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc: 1512 Test additional single argument cases. 1513 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc: 1514 Adjust expected error. 1515 15162019-02-05 Jonathan Wakely <jwakely@redhat.com> 1517 1518 PR libstdc++/89128 1519 * include/bits/stl_queue.h (queue, priority_queue): Add deduction 1520 guides. 1521 * include/bits/stl_stack.h (stack): Likewise. 1522 * testsuite/23_containers/priority_queue/deduction.cc: New test. 1523 * testsuite/23_containers/queue/deduction.cc: New test. 1524 * testsuite/23_containers/stack/deduction.cc: New test. 1525 1526 PR libstdc++/89194 1527 * include/std/type_traits (__is_convertible_helper) 1528 (__is_convertible_helper<_From, _To, false>): Revert changes to 1529 support is_nothrow_convertible. 1530 (__is_nt_convertible_helper): New helper. 1531 (is_nothrow_convertible): Use __is_nt_convertible_helper. 1532 1533 * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore 1534 use of CopyConsOnlyType, but also test DelAnyAssign for completeness. 1535 1536 PR libstdc++/89130 1537 * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to 1538 __is_alloc_insertable_impl. Replace single type member with two 1539 members, one for each of copy and move insertable. 1540 (__is_move_insertable): New trait for internal use. 1541 * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type)) 1542 (vector::_S_nothrow_relocate(true_type)): New functions to 1543 conditionally check if __relocate_a can throw. 1544 (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based 1545 on __is_move_insertable. 1546 (vector::_S_do_relocate): New overloaded functions to conditionally 1547 call __relocate_a. 1548 (vector::_S_relocate): New function that dispatches to _S_do_relocate 1549 based on _S_use_relocate. 1550 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) 1551 (vector::_M_default_append): Call _S_relocate instead of __relocate_a. 1552 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New. 1553 1554 PR libstdc++/89090 1555 * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused 1556 parameter unnamed. Add message to static assertion. 1557 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) 1558 (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr 1559 in C++11 code. 1560 15612019-02-05 Marc Glisse <marc.glisse@inria.fr> 1562 1563 PR libstdc++/87106 1564 * include/bits/stl_uninitialized.h (__is_trivially_relocatable): 1565 Rename... 1566 (__is_bitwise_relocatable): ... to this. 1567 (__relocate_a_1): Adapt. 1568 * include/bits/stl_deque.h (__is_trivially_relocatable): Rename... 1569 (__is_bitwise_relocatable): ... to this. 1570 15712019-01-30 Jonathan Wakely <jwakely@redhat.com> 1572 1573 PR libstdc++/89117 1574 * src/c++17/fs_path.cc (path::replace_extension): Erase extension from 1575 final component as well as from _M_pathname. Append the dot using 1576 operator+= instead of only to _M_pathname. 1577 (path::_M_find_extension): Reformat slightly. 1578 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: 1579 Add more test cases. 1580 15812019-01-30 Ulrich Drepper <drepper@redhat.com> 1582 1583 * doc/xml/manual/status_cxx2020.xml: Update P0600 entry. 1584 15852019-01-29 Jonathan Wakely <jwakely@redhat.com> 1586 1587 * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect 1588 constexpr specifiers from arg and proj. 1589 1590 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for 1591 __shared_ptr instantiations used by gcc4-compatible ABI. 1592 1593 * include/experimental/forward_list (experimental::erase): Qualify 1594 call to erase_if. 1595 * include/experimental/list (experimental::erase): Likewise. 1596 * include/std/forward_list (std::erase): Likewise. 1597 * include/std/list (std::erase): Likewise. 1598 1599 * testsuite/20_util/reference_wrapper/result_type.cc: Disable for 1600 C++2a. 1601 * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise. 1602 * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise. 1603 * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise. 1604 * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning. 1605 * testsuite/ext/array_allocator/26875.cc: Likewise. 1606 * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise. 1607 * testsuite/util/replacement_memory_operators.h: Likewise. 1608 * testsuite/util/testsuite_allocator.h: Likewise. 1609 1610 * include/std/memory_resource (__pool_resource::_M_unpooled): Use 1611 normal mode vector, even for debug mode. 1612 * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector): 1613 Define alias template for normal mode vector. 1614 16152019-01-28 Jonathan Wakely <jwakely@redhat.com> 1616 1617 PR libstdc++/68737 1618 * config/locale/generic/c_locale.h (__convert_from_v) 1619 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. 1620 * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF. 1621 * include/bits/locale_facets.tcc (num_put::_M_insert_float) 1622 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. 1623 16242019-01-24 Jonathan Wakely <jwakely@redhat.com> 1625 1626 PR libstdc++/88840 1627 * include/bits/stl_vector.h (vector::__use_relocate): Replace static 1628 data member with static member function _S_use_relocate(). 1629 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) 1630 (vector::_M_default_append): Use _S_use_relocate() instead of 1631 __use_relocate. 1632 1633 * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare 1634 sign of results. 1635 16362019-01-22 Jonathan Wakely <jwakely@redhat.com> 1637 1638 PR libstdc++/88740 1639 * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to 1640 write to stderr instead of using printf. 1641 16422019-01-21 Jakub Jelinek <jakub@redhat.com> 1643 1644 PR libstdc++/86590 1645 * include/bits/char_traits.h (__constant_string_p, 1646 __constant_char_array_p): Use __builtin_is_constant_evaluated if 1647 available. 1648 16492019-01-20 Ulrich Drepper <drepper@redhat.com> 1650 1651 Implement C++20 P0600r1. 1652 * include/backward/hash_map: Add nodiscard attribute to empty. 1653 * include/backward/hash_set: Likewise. 1654 * backward/hashtable.h: Likewise. 1655 * include/bits/basic_string.h: Likewise. 1656 * include/bits/forward_list.h: Likewise. 1657 * include/bits/hashtable.h: Likewise. 1658 * include/bits/regex.h: Likewise. 1659 * include/bits/stl_deque.h: Likewise. 1660 * include/bits/stl_list.h: Likewise. 1661 * include/bits/stl_map.h: Likewise. 1662 * include/bits/stl_multimap.h: Likewise. 1663 * include/bits/stl_multiset.h: Likewise. 1664 * include/bits/stl_queue.h: Likewise. 1665 * include/bits/stl_set.h: Likewise. 1666 * include/bits/stl_stack.h: Likewise. 1667 * include/bits/stl_tree.h: Likewise. 1668 * include/bits/stl_vector.h: Likewise. 1669 * include/bits/unordered_map.h: Likewise. 1670 * include/bits/unordered_set.h: Likewise. 1671 * include/debug/array: Likewise. 1672 * include/experimental/any: Likewise. 1673 * include/experimental/bits/fs_path.h: Likewise. 1674 * include/experimental/internet: Likewise. 1675 * include/experimental/string_view: Likewise. 1676 * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp: 1677 Likewise. 1678 * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp: 1679 Likewise. 1680 * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp: 1681 Likewise. 1682 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp: 1683 Likewise. 1684 * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp: 1685 Likewise. 1686 * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp: 1687 Likewise. 1688 * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp: 1689 Likewise. 1690 * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp: 1691 Likewise. 1692 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/ 1693 info_fn_imps.hpp: Likewise. 1694 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/ 1695 left_child_next_sibling_heap_.hpp: Likewise. 1696 * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp: 1697 Likewise. 1698 * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp: 1699 Likewise. 1700 * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp: 1701 Likewise. 1702 * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp: 1703 Likewise. 1704 * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp: 1705 Likewise. 1706 * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp: 1707 Likewise. 1708 * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp: 1709 Likewise. 1710 * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise. 1711 * include/ext/pb_ds/trie_policy.hpp: Likewise. 1712 * include/ext/rope: Likewise. 1713 * include/ext/slist: Likewise. 1714 * include/ext/vstring.h: Likewise. 1715 * include/profile/array: Likewise. 1716 * include/std/array: Likewise. 1717 * include/tr1/array: Likewise. 1718 * include/tr1/hashtable.h: Likewise. 1719 * include/tr1/regex: Likewise. 1720 * include/tr2/dynamic_bitset: Likewise. 1721 * include/bits/alloc_traits.h: Add nodiscard attribute to 1722 allocate. 1723 * include/experimental/memory_resource: Likewise. 1724 * include/ext/alloc_traits.h: Likewise. 1725 * include/ext/array_allocator.h: Likewise. 1726 * include/ext/bitmap_allocator.h: Likewise. 1727 * include/ext/debug_allocator.h: Likewise. 1728 * include/ext/extptr_allocator.h: Likewise. 1729 * include/ext/mt_allocator.h: Likewise. 1730 * include/ext/new_allocator.h: Likewise. 1731 * include/ext/pool_allocator.h: Likewise. 1732 * include/ext/throw_allocator.h: Likewise. 1733 * include/std/scoped_allocator: Likewise. 1734 * libsupc++/eh_alloc.cc: Likewise. 1735 * include/std/future: Add nodiscard attribute to async. 1736 * libsupc++/new: Add nodiscard attribute to new. 1737 17382019-01-18 Jonathan Wakely <jwakely@redhat.com> 1739 1740 PR libstdc++/87514 1741 PR libstdc++/87520 1742 PR libstdc++/88782 1743 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol. 1744 * include/bits/shared_ptr.h 1745 (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)) 1746 (allocate_shared): Change to use new tag type. 1747 * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq): 1748 Declare new member function. 1749 (_Sp_alloc_shared_tag): Define new type. 1750 (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend. 1751 (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use 1752 _Sp_make_shared_tag::_S_eq to check type_info. 1753 (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)): 1754 Constrain to prevent being called with _Sp_alloc_shared_tag. 1755 (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)): 1756 Replace constructor with ... 1757 (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use 1758 reference parameter so address of the new object can be returned to 1759 the caller. Obtain the allocator from the tag type. 1760 (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace 1761 constructor with ... 1762 (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr 1763 to the __shared_count constructor. 1764 (__allocate_shared): Change to use new tag type. 1765 * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define. 1766 17672019-01-17 Jonathan Wakely <jwakely@redhat.com> 1768 1769 * src/c++17/fs_ops.cc 1770 (equivalent(const path&, const path&, error_code&)) 1771 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to 1772 compare files instead of relying on incomplete info returned by stat. 1773 1774 PR libstdc++/88884 1775 * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing 1776 if the path is already absolute. 1777 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory. 1778 [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path. 1779 1780 PR libstdc++/88881 1781 * src/c++17/fs_ops.cc (canonical(const path&, error_code&)) 1782 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour 1783 of filesystem::exists. 1784 (create_directories(const path&, error_code&)): Add assertions. 1785 (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: 1786 Add workaround for bug in _wstat for paths with trailing slash. 1787 * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust 1788 for expected behaviour on mingw. 1789 * testsuite/experimental/filesystem/operations/create_directories.cc: 1790 Likewise. 1791 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use 1792 "TMP" instead of "TMPDIR" and clean environment before each test. Do 1793 not test permissions on mingw targets. 1794 17952019-01-16 Jonathan Wakely <jwakely@redhat.com> 1796 1797 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream 1798 constructors and open members taking wide strings. Fix patterns for 1799 filesystem::path members to match wstring_view parameters. Add 1800 exports for shared_ptr members used by directory iterators. 1801 * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the 1802 error code parameter if the file doesn't exist. 1803 * src/filesystem/ops.cc (remove(const path&, error_code&)): 1804 Likewise. 1805 * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected 1806 values for mingw targets, where "/" is not an absolute path. Do not 1807 test symlinks on mingw targets. 1808 * testsuite/experimental/filesystem/operations/canonical.cc: Likewise. 1809 * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks 1810 on mingw targets. 1811 * testsuite/experimental/filesystem/operations/copy.cc: Likewise. 1812 * testsuite/27_io/filesystem/operations/create_directories.cc: Check 1813 that each component of the path is created. 1814 * testsuite/experimental/filesystem/operations/create_directories.cc: 1815 Likewise. 1816 * testsuite/27_io/filesystem/operations/exists.cc: Do not test 1817 permissions on mingw targets. 1818 * testsuite/experimental/filesystem/operations/exists.cc: Likewise. 1819 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. 1820 * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise. 1821 * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for 1822 mingw targets. 1823 * testsuite/experimental/filesystem/operations/permissions.cc: 1824 Likewise. 1825 * testsuite/27_io/filesystem/operations/remove.cc: Do not test 1826 symlinks or permissions on mingw targets. 1827 * testsuite/experimental/filesystem/operations/remove.cc: Likewise. 1828 * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test 1829 symlinks on mingw targets. 1830 * testsuite/experimental/filesystem/operations/remove_all.cc: 1831 Likewise. 1832 * testsuite/27_io/filesystem/operations/status.cc: Do not test 1833 permissions on mingw targets. 1834 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not 1835 test symlinks on mingw targets. 1836 * testsuite/experimental/filesystem/operations/space.cc: Fix test 1837 for mingw targets. 1838 18392019-02-14 Ulrich Drepper <drepper@redhat.com> 1840 1841 PR libstdc++/88738 1842 Warn about unused comparisons of shared_ptr/unique_ptr 1843 * include/bits/c++config [_GLIBCXX_NODISCARD]: Define. 1844 * include/bits/shared_ptr.h: Use it for operator ==, !=, 1845 <, <=, >, >= for shared_ptr. 1846 * include/bits/unique_ptr.h: Likewise for unique_ptr. 1847 18482019-01-15 Jonathan Wakely <jwakely@redhat.com> 1849 1850 * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define 1851 as 201611L, because P0497R0 changes are supported. 1852 * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise. 1853 1854 * include/bits/erase_if.h [__cplusplus > 201703L] 1855 (__cpp_lib_erase_if): Only define for C++2a. 1856 * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG] 1857 (__cpp_lib_null_iterators): Define. 1858 * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG] 1859 (__cpp_lib_null_iterators): Define. 1860 [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define. 1861 1862 * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2 1863 status. 1864 * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms): 1865 Define. 1866 * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3 1867 changes are supported. 1868 * include/std/optional (__cpp_lib_optional): Likewise. 1869 * include/std/variant (__cpp_lib_variant): Likewise. 1870 * include/std/version [!__STRICT_ANSI__] 1871 (__cpp_lib_uncaught_exceptions): Define as long integer. 1872 [__cplusplus >= 201703L] (__cpp_lib_any) 1873 (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions) 1874 (__cpp_lib_variant): Define for C++17. 1875 [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define 1876 as long integer. 1877 * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long 1878 integer. 1879 1880 * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status. 1881 18822019-01-12 Jonathan Wakely <jwakely@redhat.com> 1883 1884 PR libstdc++/88811 1885 PR libstdc++/83306 1886 * src/filesystem/path.cc: Fix typo. If first path is empty, show [] 1887 before second path. 1888 * testsuite/experimental/filesystem/filesystem_error/cons.cc: New 1889 test. 1890 18912019-01-11 Jonathan Wakely <jwakely@redhat.com> 1892 1893 * doc/xml/manual/intro.xml: Include new section. 1894 * doc/xml/manual/status_cxx2017.xml: Document more 1895 implementation-defined properties of the library. 1896 * doc/xml/manual/status_cxx2020.xml: Document C++2a status. 1897 * doc/html/*: Regenerate. 1898 1899 * include/bits/refwrap.h [__cplusplus > 201703L] 1900 (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base) 1901 (_Reference_wrapper_base_memfun): Do not define for C++2a. 1902 (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun 1903 for C++2a. 1904 (reference_wrapper::operator()): Add static assertion. 1905 * testsuite/20_util/reference_wrapper/incomplete.cc: New test. 1906 1907 * include/std/chrono (duration_values::zero(), duration_values::min()) 1908 (duration_values::max()): Add noexcept. 1909 (duration::zero(), duration::min(), duration::max()): Likewise. 1910 (time_point::zero(), time_point::min(), time_point::max()): Likewise. 1911 * testsuite/20_util/duration/requirements/noexcept.cc: New test. 1912 * testsuite/20_util/time_point/requirements/noexcept.cc: New test. 1913 1914 * include/std/version (__cpp_lib_erase_if): Move to C++20 group. 1915 19162019-01-11 Jakub Jelinek <jakub@redhat.com> 1917 1918 * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define. 1919 * include/std/version (__cpp_lib_is_constant_evaluated): Define. 1920 19212019-01-11 Jonathan Wakely <jwakely@redhat.com> 1922 1923 PR libstdc++/88802 1924 * include/bits/functional_hash.h (hash<nullptr_t>): Define 1925 specialization for C++17 (P0513R0, LWG 2817). 1926 * testsuite/20_util/hash/nullptr.cc: New test. 1927 1928 PR libstdc++/88125 1929 * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate 1930 pattern for std::basic_stringbuf::str(). 1931 1932 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to 1933 basic_ostream::operator<< patterns. 1934 19352019-01-10 Jonathan Wakely <jwakely@redhat.com> 1936 1937 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix 1938 test failures on targets with 32-bit time_t. 1939 1940 * include/bits/erase_if.h: Define __cpp_lib_erase_if. 1941 * include/std/deque: Likewise. 1942 * include/std/forward_list: Likewise. 1943 * include/std/list: Likewise. 1944 * include/std/string: Likewise. 1945 * include/std/vector: Likewise. 1946 * include/std/version: Likewise. 1947 * testsuite/21_strings/basic_string/erasure.cc: Test macro. 1948 * testsuite/23_containers/deque/erasure.cc: Likewise. 1949 * testsuite/23_containers/forward_list/erasure.cc: Likewise. 1950 * testsuite/23_containers/list/erasure.cc: Likewise. 1951 * testsuite/23_containers/map/erasure.cc: Likewise. 1952 * testsuite/23_containers/set/erasure.cc: Likewise. 1953 * testsuite/23_containers/unordered_map/erasure.cc: Likewise. 1954 * testsuite/23_containers/unordered_set/erasure.cc: Likewise. 1955 * testsuite/23_containers/vector/erasure.cc: Likewise. 1956 1957 * include/experimental/internet [AI_NUMERICSERV] 1958 (resolver_base::numeric_service): Define conditionally. 1959 * testsuite/experimental/net/internet/resolver/base.cc: Test it 1960 conditionally. 1961 * testsuite/experimental/net/internet/resolver/ops/lookup.cc: 1962 Likewise. 1963 19642019-01-10 Ville Voutilainen <ville.voutilainen@gmail.com> 1965 Jonathan Wakely <jwakely@redhat.com> 1966 1967 Implement LWG 2221 1968 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns. 1969 (GLIBCXX_3.4.26): Add new exports. 1970 * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to 1971 correct list of sources. 1972 * include/Makefile.in: Regenerate. 1973 * include/std/ostream (operator<<(nullptr_t)): New member function. 1974 * src/c++17/ostream-inst.cc: New file. 1975 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New 1976 test. 1977 19782019-01-10 Jonathan Wakely <jwakely@redhat.com> 1979 1980 * testsuite/util/testsuite_fs.h (nonexistent_path): Include name 1981 of the source file containing the caller. 1982 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove 1983 directories created by test. 1984 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: 1985 Likewise. 1986 * testsuite/experimental/filesystem/iterators/directory_iterator.cc: 1987 Likewise. 1988 * testsuite/experimental/filesystem/iterators/ 1989 recursive_directory_iterator.cc: Likewise. 1990 19912019-01-10 Jakub Jelinek <jakub@redhat.com> 1992 1993 PR tree-optimization/88775 1994 * include/bits/stl_function.h (greater<_Tp*>::operator(), 1995 less<_Tp*>::operator(), greater_equal<_Tp*>::operator(), 1996 less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated 1997 instead of __builtin_constant_p if available. Don't bother with 1998 the pointer comparison in C++11 and earlier. 1999 20002019-01-09 Sandra Loosemore <sandra@codesourcery.com> 2001 2002 PR other/16615 2003 2004 * include/ext/bitmap_allocator.h: Mechanically replace "can not" 2005 with "cannot". 2006 20072019-01-09 Jonathan Wakely <jwakely@redhat.com> 2008 2009 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output 2010 for filesystem::path. Give variables more distinctive names. 2011 2012 * include/std/optional (_Optional_payload_base::_M_copy_assign): New 2013 member function to perform non-trivial assignment. 2014 (_Optional_payload_base::_M_move_assign): Likewise. 2015 (_Optional_payload<T, true, false, true>::operator=) 2016 (_Optional_payload<T, true, true, false>::operator=) 2017 (_Optional_payload<T, true, false, false>::operator=): Call 2018 _M_copy_assign and/or _M_move_assign to do non-trivial assignments. 2019 2020 PR libstdc++/88204 2021 * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not 2022 test std::complex<long double> if long double format is IBM128. 2023 * testsuite/26_numerics/complex/requirements/more_constexpr.cc: 2024 Likewise. 2025 20262019-01-08 Jonathan Wakely <jwakely@redhat.com> 2027 2028 * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support 2029 for old std::unique_ptr layout. 2030 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test 2031 to become valueless. Add filesystem::path tests. 2032 2033 PR libstdc++/87855 2034 * include/std/optional (_Optional_payload_base): New class template 2035 for common code hoisted from _Optional_payload specializations. Use 2036 a template for the union, to allow a partial specialization for 2037 types with non-trivial destructors. Add constructors for in-place 2038 initialization to the union. 2039 (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct 2040 to perform non-trivial copy construction, instead of relying on 2041 non-standard copy elision in a delegating constructor. 2042 (_Optional_payload(bool, _Optional_payload&&)): Likewise for 2043 non-trivial move construction. 2044 (_Optional_payload): Derive from _Optional_payload_base and use it 2045 for everything except the non-trivial assignment operators, which are 2046 defined as needed. 2047 (_Optional_payload<false, C, M>): Derive from the specialization 2048 _Optional_payload<true, false, false> and add a destructor. 2049 (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset): 2050 Forward to corresponding members of _Optional_payload. 2051 (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get): 2052 Hoist common members from _Optional_base. 2053 (_Optional_base): Make all members and base class public. 2054 (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to 2055 _Optional_base_impl. 2056 * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add 2057 support for new std::optional layout. 2058 * testsuite/libstdc++-prettyprinters/compat.cc: New test. 2059 2060 PR libstdc++/88066 2061 * include/bits/locale_conv.h: Use <> for includes not "". 2062 * include/ext/random: Likewise. 2063 * include/ext/vstring.h: Likewise. 2064 20652019-01-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> 2066 2067 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns. 2068 (GLIBCXX_3.4.21): Likewise. 2069 20702019-01-08 Jonathan Wakely <jwakely@redhat.com> 2071 2072 PR libstdc++/88749 2073 * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition 2074 to match the one that controls whether utimbuf and utime are declared. 2075 20762019-01-07 Jonathan Wakely <jwakely@redhat.com> 2077 2078 PR libstdc++/87787 2079 * include/bits/char_traits.h (char_traits::move): Do not pass null 2080 pointers to memmove. 2081 * include/bits/locale_facets.h 2082 (ctype<char>::widen(const char*, const char*, char*)): Do not 2083 pass null pointers to memcpy. 2084 (ctype<char>::narrow(const char*, const char*, char, char*)): 2085 Likewise. 2086 (ctype<char>::do_widen(const char*, const char*, char*)): 2087 Likewise. 2088 (ctype<char>::do_narrow(const char*, const char*, char, char*)): 2089 Likewise. 2090 2091 * doc/xml/manual/spine.xml: Update copyright years. 2092 * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs. 2093 * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs 2094 for C++17 filesystem library. 2095 * doc/html/*: Regenerate. 2096 2097 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate. 2098 * config.h.in: Regenerate. 2099 * config/abi/pre/gnu.ver: Order patterns for filesystem operations 2100 alphabetically and add missing entries for copy_symlink, 2101 hard_link_count, rename, and resize_file. 2102 * configure: Regenerate. 2103 * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is 2104 used unconditionally. 2105 * src/filesystem/ops-common.h (__gnu_posix::truncate) 2106 [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only 2107 supports truncating to zero length. 2108 * testsuite/27_io/filesystem/operations/all.cc: New test. 2109 * testsuite/27_io/filesystem/operations/resize_file.cc: New test. 2110 21112019-01-06 Jonathan Wakely <jwakely@redhat.com> 2112 2113 PR libstdc++/86756 2114 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and 2115 lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT. 2116 * config.h.in: Regenerate. 2117 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for 2118 remaining std::filesystem types and functions. 2119 * configure: Regenerate. 2120 * src/c++17/Makefile.am: Add C++17 filesystem sources. 2121 * src/c++17/Makefile.in: Regenerate. 2122 * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to 2123 here, and change name of included file. 2124 * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to 2125 here, and change name of included file. 2126 * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change 2127 path to dir-common.h. 2128 * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change 2129 path to ops-common.h. Disable -Wunused-parameter warnings. 2130 (internal_file_clock): Define unconditionally. 2131 [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not 2132 define. 2133 (do_copy_file, do_space): Move definitions to ops.common.h. 2134 (copy, file_size, hard_link_count, last_write_time, space): Only 2135 perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise 2136 report an error. 2137 (last_write_time, read_symlink): Remove unused attributes from 2138 parameters. 2139 * src/filesystem/Makefile.am: Remove C++17 filesystem sources. 2140 * src/filesystem/Makefile.in: Regenerate. 2141 * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc. 2142 * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc. 2143 * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc. 2144 * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc. 2145 * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define 2146 dummy types and functions instead of using #error. 2147 * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error. 2148 * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define 2149 in terms of stat. 2150 [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions. 2151 (do_copy_file, do_space): Move definitions here from std-ops.cc. 2152 * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space 2153 to account for new namespace. 2154 * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove 2155 -lstdc++fs from dg-options. 2156 * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise. 2157 * testsuite/27_io/filesystem/file_status/1.cc: Likewise. 2158 * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise. 2159 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise. 2160 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: 2161 Likewise. 2162 * testsuite/27_io/filesystem/iterators/pop.cc: Likewise. 2163 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: 2164 Likewise. 2165 * testsuite/27_io/filesystem/operations/absolute.cc: Likewise. 2166 * testsuite/27_io/filesystem/operations/canonical.cc: Likewise. 2167 * testsuite/27_io/filesystem/operations/copy.cc: Likewise. 2168 * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise. 2169 * testsuite/27_io/filesystem/operations/create_directories.cc: 2170 Likewise. 2171 * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise. 2172 * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise. 2173 * testsuite/27_io/filesystem/operations/current_path.cc: Likewise. 2174 * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise. 2175 * testsuite/27_io/filesystem/operations/exists.cc: Likewise. 2176 * testsuite/27_io/filesystem/operations/file_size.cc: Likewise. 2177 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. 2178 * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise. 2179 * testsuite/27_io/filesystem/operations/permissions.cc: Likewise. 2180 * testsuite/27_io/filesystem/operations/proximate.cc: Likewise. 2181 * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise. 2182 * testsuite/27_io/filesystem/operations/relative.cc: Likewise. 2183 * testsuite/27_io/filesystem/operations/remove.cc: Likewise. 2184 * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise. 2185 * testsuite/27_io/filesystem/operations/space.cc: Likewise. 2186 * testsuite/27_io/filesystem/operations/status.cc: Likewise. 2187 * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise. 2188 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: 2189 Likewise. 2190 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise. 2191 2192 2193 PR libstdc++/86756 2194 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for 2195 typeinfo and vtables less greedy. 2196 (GLIBCXX_3.4.26): Export symbols for std::filesystem::path. 2197 * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc. 2198 * src/c++17/Makefile.in: Regenerate. 2199 * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to 2200 here, and change name of included file. 2201 * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here. 2202 * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc 2203 from sources. 2204 * src/filesystem/Makefile.in: Regenerate. 2205 * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc. 2206 * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc. 2207 * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs 2208 from dg-options and remove dg-require-filesystem-ts. 2209 * testsuite/27_io/filesystem/path/append/source.cc: Likewise. 2210 * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise. 2211 * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise. 2212 * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise. 2213 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise. 2214 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise. 2215 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise. 2216 * testsuite/27_io/filesystem/path/concat/path.cc: Likewise. 2217 * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise. 2218 * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise. 2219 * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise. 2220 * testsuite/27_io/filesystem/path/construct/default.cc: Likewise. 2221 * testsuite/27_io/filesystem/path/construct/format.cc: Likewise. 2222 * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise. 2223 * testsuite/27_io/filesystem/path/construct/range.cc: Likewise. 2224 * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise. 2225 * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise. 2226 * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise. 2227 * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise. 2228 * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise. 2229 * testsuite/27_io/filesystem/path/decompose/root_directory.cc: 2230 Likewise. 2231 * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise. 2232 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise. 2233 * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise. 2234 * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise. 2235 * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise. 2236 * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise. 2237 * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise. 2238 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise. 2239 * testsuite/27_io/filesystem/path/itr/components.cc: Likewise. 2240 * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise. 2241 * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise. 2242 * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: 2243 Likewise. 2244 * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: 2245 Likewise. 2246 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: 2247 Likewise. 2248 * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc: 2249 Likewise. 2250 * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise. 2251 * testsuite/27_io/filesystem/path/native/string.cc: Likewise. 2252 * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise. 2253 * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise. 2254 * testsuite/27_io/filesystem/path/query/empty.cc: Likewise. 2255 * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise. 2256 * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise. 2257 * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise. 2258 * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise. 2259 * testsuite/27_io/filesystem/path/query/has_root_directory.cc: 2260 Likewise. 2261 * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise. 2262 * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise. 2263 * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise. 2264 * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise. 2265 * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise. 2266 2267 PR libstdc++/87431 2268 * include/std/variant (_Variant_storage<true, _Types...>::_M_valid): 2269 Check is_trivially_copyable instead of is_scalar. 2270 (variant::emplace<N, Args>(Args&&...)): If construction of the new 2271 contained value can throw and its type is trivially copyable then 2272 construct into a temporary variant and move from it, to provide the 2273 strong exception safety guarantee. 2274 (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)): 2275 Likewise. 2276 * testsuite/20_util/variant/87431.cc: New test. 2277 * testsuite/20_util/variant/run.cc: Adjust test so that throwing 2278 conversion causes valueless state. 2279 2280 PR libstdc++/88607 2281 * testsuite/17_intro/headers/c++1998/charset.cc: New test. 2282 * testsuite/17_intro/headers/c++2011/charset.cc: New test. 2283 * testsuite/17_intro/headers/c++2014/charset.cc: New test. 2284 * testsuite/17_intro/headers/c++2017/charset.cc: New test. 2285 * testsuite/17_intro/headers/c++2020/charset.cc: New test. 2286 22872019-01-05 Jonathan Wakely <jwakely@redhat.com> 2288 2289 * include/bits/fs_fwd.h (__file_clock): Define new clock. 2290 (file_time_type): Redefine in terms of __file_clock. 2291 * src/filesystem/ops-common.h (file_time): Add FIXME comment about 2292 overflow. 2293 * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give 2294 internal linkage. 2295 (internal_file_lock): New helper type for accessing __file_clock. 2296 (do_copy_file): Use internal_file_lock to convert system time to 2297 file_time_type. 2298 (last_write_time(const path&, error_code&)): Likewise. 2299 (last_write_time(const path&, file_time_type, error_code&)): Likewise. 2300 23012019-01-04 Jonathan Wakely <jwakely@redhat.com> 2302 2303 * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy 2304 for const member functions of std::basic_string. 2305 (GLIBCXX_3.4.26): Export member functions of std::basic_string added 2306 in C++17. 2307 * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)): 2308 Make non-standard constructor private. 2309 [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)): 2310 Likewise. 2311 * include/bits/basic_string.tcc (std::string, std::wstring): Declare 2312 explicit instantiations for C++17 as well as earlier dialects. 2313 * src/c++17/Makefile.am: Add new source files. 2314 * src/c++17/Makefile.in: Regenerate. 2315 * src/c++17/cow-string-inst.cc: New file defining explicit 2316 instantiations for basic_string member functions added in C++17. 2317 * src/c++17/string-inst.cc: Likewise. 2318 2319 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended 2320 copy/move constructors for old std::basic_string. 2321 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI] 2322 (basic_string::reference, basic_string::const_reference): Define 2323 as plain references for C++11 and later. 2324 (basic_string::basic_string()): Put constructor body outside 2325 preprocessor conditional groups. 2326 (basic_string::basic_string(basic_string&&)): Move _Alloc_hider 2327 instead of copying it. 2328 (basic_string::basic_string(const basic_string&, const _Alloc&)): 2329 Define. 2330 (basic_string::basic_string(basic_string&&, const _Alloc&)): 2331 Define. 2332 * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special 2333 cases for old basic_string. 2334 * testsuite/21_strings/basic_string/cons/char/8.cc: Test 2335 allocator-extended constructors unconditionally. Add extra members to 2336 allocator type when using old string ABI. 2337 * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test 2338 for old string ABI. 2339 * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise. 2340 2341 * testsuite/23_containers/list/61347.cc: Avoid spurious failure when 2342 -fno-inline added to test flags. 2343 2344 * testsuite/21_strings/basic_string/requirements/ 2345 explicit_instantiation/debug.cc: Remove XFAIL for old ABI. 2346 2347 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static 2348 assertion failures with old std::string ABI. 2349 2350 * include/bits/fs_path.h (path::_List::erase): Replace both overloads 2351 with ... 2352 (path::pop_back(), path::_M_erase_from(const_iterator)): New member 2353 functions that will only erase elements at the end. 2354 * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define. 2355 (path::_List::_Impl::_M_erase_from(const_iterator)): Define. 2356 (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead 2357 of erase(p, end()). 2358 (path::_List::pop_back()): Define. 2359 (path::_List::_M_erase_from(const_iterator)): Define. 2360 (path::operator/=(const path&)): Use pop_back to remove last component 2361 and _M_erase_from to remove multiple components. 2362 (path::_M_append(basic_string_view<value_type>)): Likewise. 2363 (path::operator+=(const path&)): Likewise. 2364 (path::_M_concat(basic_string_view<value_type>)): Likewise. 2365 (path::remove_filename()): Likewise. 2366 (path::lexically_normal()): Use _List::_Impl iterators instead of 2367 path::iterator. Use pop_back to remove components from the end. Clear 2368 trailing filename, instead of using erase(const_iterator) to remove 2369 a non-final component. 2370 * testsuite/27_io/filesystem/path/generation/normal.cc: Test 2371 additional cases. 2372 * testsuite/27_io/filesystem/path/generation/normal2.cc: New test. 2373 2374 * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix 2375 incorrect treatment of empty filename after trailing slash. 2376 * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case. 2377 2378 * testsuite/21_strings/basic_string/modifiers/assign/char/ 2379 move_assign_optim.cc: Avoid spurious failure when -fno-inline added 2380 to test flags. 2381 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/ 2382 move_assign_optim.cc: Likewise. 2383 23842019-01-03 Jonathan Wakely <jwakely@redhat.com> 2385 Jakub Jelinek <jakub@redhat.com> 2386 2387 PR libstdc++/88607 2388 * include/experimental/memory: Replace UTF-8 quote characters. 2389 * include/std/future: Replace UTF-8 "em dash" characters. 2390 23912019-01-03 Jonathan Wakely <jwakely@redhat.com> 2392 2393 PR libstdc++/88607 2394 * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character. 2395 * include/debug/forward_list: Likewise. 2396 * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign" 2397 character. 2398 * include/experimental/chrono: Likewise. 2399 * include/experimental/functional: Likewise. 2400 * include/experimental/ratio: Likewise. 2401 * include/experimental/system_error: Likewise. 2402 * include/experimental/tuple: Likewise. 2403 * include/experimental/type_traits: Likewise. 2404 * include/parallel/workstealing.h: Replace UTF-8 "en dash" character. 2405 * include/parallel/multiseq_selection.h: Likewise. 2406 2407 PR libstdc++/88681 2408 * config/abi/pre/gnu.ver: Add missing exports. 2409 * testsuite/22_locale/collate_byname/88681.cc: New test. 2410 * testsuite/22_locale/time_get/get/char/88681.cc: New test. 2411 * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test. 2412 24132019-01-02 Jonathan Wakely <jwakely@redhat.com> 2414 2415 * testsuite/23_containers/map/cons/deduction.cc: Test deduction from 2416 initializer_list<value_type> and from input iterator ranges. 2417 * testsuite/23_containers/multimap/cons/deduction.cc: Likewise. 2418 2419 * testsuite/experimental/string_view/element_access/char/empty.cc: 2420 Fix year range in copyright header. 2421 24222019-01-02 Joel Brobecker <brobecker@adacore.com> 2423 2424 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc: 2425 Fix year range in copyright header. 2426 24272019-01-01 Jakub Jelinek <jakub@redhat.com> 2428 2429 Update copyright years. 2430 2431Copyright (C) 2019 Free Software Foundation, Inc. 2432 2433Copying and distribution of this file, with or without modification, 2434are permitted in any medium without royalty provided the copyright 2435notice and this notice are preserved. 2436