libstdc++-v3/ChangeLog

   1 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         PR libstdc++/60555
   4         * src/c++11/system_error.cc
   5         (system_error_category::default_error_condition): New override to
   6         check for POSIX errno values.
   7         * testsuite/19_diagnostics/error_category/generic_category.cc: New
   8         * testsuite/19_diagnostics/error_category/system_category.cc: New
   9         test.
  10
  11 2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
  12
  13         PR libstdc++/86751
  14         * include/bits/stl_pair.h (__pair_base): New class with deleted copy
  15         assignment operator.
  16         (pair): Derive from __pair_base.
  17         (pair::operator=): Remove deleted overload.
  18         * python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
  19         so that new base class isn't shown in GDB.
  20         * testsuite/20_util/pair/86751.cc: New test.
  21         * testsuite/20_util/pair/ref_assign.cc: New test.
  22
  23         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
  24         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Move definitions here.
  25         (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Likewise. Use !__is_identifier
  26         instead of __has_builtin.
  27         * include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
  28         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Remove definitions from here.
  29         * include/std/version [!_GLIBCXX_HAS_GTHREADS]
  30         (__cpp_lib_shared_timed_mutex, __cpp_lib_scoped_lock)
  31         (__cpp_lib_shared_mutex): Don't define when Gthreads not in use.
  32         [!_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP]
  33         (__cpp_lib_has_unique_object_representations): Don't define when
  34         builtin not available.
  35         [!_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE] (__cpp_lib_is_aggregate):
  36         Likewise.
  37         [!_GLIBCXX_HAVE_BUILTIN_LAUNDER] (__cpp_lib_launder): Likewise.
  38         * libsupc++/new (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Remove definition
  39         from here.
  40
  41         * doc/xml/manual/test.xml: Improve documentation on writing tests for
  42         newer standards.
  43         * doc/xml/manual/using.xml: Document all headers for C++11 and later.
  44         * doc/html/*: Regenerate.
  45
  46         * include/ext/pointer.h [__cplusplus >= 201103L]
  47         (_Pointer_adapter::operator bool): Add explicit conversion operator
  48         to replace safe bool idiom.
  49
  50 2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
  51
  52         PR libstdc++/86734
  53         * include/bits/stl_iterator.h (reverse_iterator::operator->): Call
  54         _S_to_pointer (LWG 1052, LWG 2118).
  55         (reverse_iterator::_S_to_pointer): Define overloaded helper functions.
  56         * testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
  57         * testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
  58
  59         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
  60         workaround for aligned_alloc bug on AIX.
  61         * testsuite/18_support/new_aligned.cc: New test.
  62
  63 2018-07-26  Marek Polacek  <polacek@redhat.com>
  64
  65         * testsuite/30_threads/condition_variable_any/cond.cc: New.
  66
  67 2018-07-26  Marek Polacek  <polacek@redhat.com>
  68
  69         * src/c++98/locale_init.cc: Fix #ifdef condition.
  70
  71 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
  72
  73         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: Add
  74         dg-require-cstdint directive.
  75         * testsuite/20_util/allocator/overaligned.cc: Likewise.
  76         * testsuite/20_util/any/cons/aligned.cc: Likewise.
  77         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Likewise.
  78         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: Likewise.
  79         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
  80         Likewise.
  81         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
  82         * testsuite/23_containers/list/modifiers/insert/25288.cc: Likewise.
  83         * testsuite/23_containers/set/allocator/move_assign.cc: Likewise.
  84         * testsuite/25_algorithms/make_heap/complexity.cc: Likewise.
  85         * testsuite/25_algorithms/pop_heap/complexity.cc: Require cstdint and
  86         random_device effective-target.
  87         * testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
  88         * testsuite/25_algorithms/sample/1.cc: Require cstdint.
  89         * testsuite/25_algorithms/sample/2.cc: Likewise.
  90         * testsuite/25_algorithms/sort_heap/complexity.cc: Require cstdint
  91         and random_device.
  92         * testsuite/26_numerics/headers/random/types_std_c++0x.cc: Require
  93         cstdint.
  94         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
  95         Likewise.
  96         * testsuite/26_numerics/random/discard_block_engine/requirements/
  97         constexpr_data.cc: Likewise.
  98         * testsuite/26_numerics/random/discard_block_engine/requirements/
  99         constexpr_functions.cc: Likewise.
 100         * testsuite/26_numerics/random/independent_bits_engine/requirements/
 101         constexpr_functions.cc: Likewise.
 102         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
 103         constexpr_data.cc: Likewise.
 104         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
 105         constexpr_functions.cc: Likewise.
 106         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
 107         constexpr_data.cc: Likewise.
 108         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
 109         constexpr_functions.cc: Likewise.
 110         * testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
 111         * testsuite/26_numerics/random/seed_seq/cons/65631.cc: Likewise.
 112         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
 113         constexpr_data.cc: Add dg-require-cstdint directive.
 114         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
 115         constexpr_functions.cc: Likewise.
 116         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
 117         constexpr_data.cc: Likewise.
 118         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
 119         constexpr_functions.cc: Likewise.
 120         * testsuite/26_numerics/random/uniform_real_distribution/operators/
 121         64351.cc: Likewise.
 122         * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Likewise.
 123         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
 124         * testsuite/experimental/algorithm/sample.cc: Likewise.
 125         * testsuite/experimental/algorithm/search.cc: Likewise.
 126         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
 127         * testsuite/experimental/any/cons/aligned.cc: Likewise.
 128         * testsuite/experimental/memory_resource/new_delete_resource.cc:
 129         Likewise.
 130         * testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise.
 131         * testsuite/experimental/random/randint.cc: Likewise.
 132         * testsuite/experimental/source_location/1.cc: Likewise.
 133         * testsuite/ext/bitmap_allocator/overaligned.cc: Likewise.
 134         * testsuite/ext/malloc_allocator/overaligned.cc: Likewise.
 135         * testsuite/ext/mt_allocator/overaligned.cc: Likewise.
 136         * testsuite/ext/new_allocator/overaligned.cc: Likewise.
 137         * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
 138         * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
 139         * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
 140         * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
 141         * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
 142         * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
 143         * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
 144         * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
 145         * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
 146         * testsuite/ext/pool_allocator/overaligned.cc: Likewise.
 147         * testsuite/ext/throw_allocator/check_allocate_max_size.cc: Likewise.
 148         * testsuite/ext/throw_allocator/check_deallocate_null.cc: Likewise.
 149         * testsuite/ext/throw_allocator/check_delete.cc: Likewise.
 150         * testsuite/ext/throw_allocator/check_new.cc: Likewise.
 151         * testsuite/ext/throw_allocator/deallocate_global.cc: Likewise.
 152         * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
 153         * testsuite/ext/throw_allocator/explicit_instantiation.cc: Likewise.
 154         * testsuite/ext/throw_allocator/variadic_construct.cc: Likewise.
 155         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Likewise.
 156
 157         * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
 158         * testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
 159         * testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
 160         * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
 161         Likewise.
 162         * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
 163         * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
 164         * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
 165         Likewise.
 166         * testsuite/30_threads/recursive_mutex/requirements/standard_layout.cc:
 167         Likewise.
 168         * testsuite/30_threads/recursive_mutex/requirements/typedefs.cc:
 169         Likewise.
 170         * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
 171         * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
 172         * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
 173         * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
 174         * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
 175         * testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
 176         Likewise.
 177         * testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
 178         Likewise.
 179         * testsuite/30_threads/recursive_timed_mutex/dest/
 180         destructor_locked.cc: Likewise.
 181         * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
 182         * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
 183         * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
 184         Likewise.
 185         * testsuite/30_threads/recursive_timed_mutex/native_handle/
 186         typesizes.cc: Likewise.
 187         * testsuite/30_threads/recursive_timed_mutex/requirements/typedefs.cc:
 188         Likewise.
 189         * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
 190         Likewise.
 191         * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
 192         Likewise.
 193         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
 194         Likewise.
 195         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
 196         Likewise.
 197         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
 198         Likewise.
 199         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
 200         Likewise.
 201         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
 202         Likewise.
 203         * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
 204         * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
 205         * testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
 206         * testsuite/30_threads/scoped_lock/requirements/
 207         explicit_instantiation.cc: Likewise.
 208         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
 209         * testsuite/30_threads/shared_future/cons/assign.cc: Likewise.
 210         * testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
 211         * testsuite/30_threads/shared_future/cons/copy.cc: Likewise.
 212         * testsuite/30_threads/shared_future/cons/default.cc: Likewise.
 213         * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
 214         * testsuite/30_threads/shared_future/cons/move_assign.cc: Likewise.
 215         * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
 216         * testsuite/30_threads/shared_future/members/get.cc: Likewise.
 217         * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
 218         * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
 219         * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
 220         * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
 221         * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
 222         * testsuite/30_threads/shared_future/requirements/
 223         explicit_instantiation.cc: Likewise.
 224         * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
 225         * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
 226         * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
 227         * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
 228         * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
 229         * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
 230         * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
 231         * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
 232         * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
 233         * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
 234         * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
 235         * testsuite/30_threads/shared_lock/requirements/
 236         explicit_instantiation.cc: Likewise.
 237         * testsuite/30_threads/shared_lock/requirements/typedefs.cc: Likewise.
 238         * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
 239         * testsuite/30_threads/shared_mutex/cons/assign_neg.cc: Likewise.
 240         * testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
 241         * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
 242         Likewise.
 243         * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
 244         * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
 245         * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
 246         * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
 247         * testsuite/30_threads/shared_timed_mutex/cons/assign_neg.cc: Likewise.
 248         * testsuite/30_threads/shared_timed_mutex/cons/copy_neg.cc: Likewise.
 249         * testsuite/30_threads/shared_timed_mutex/requirements/
 250         standard_layout.cc: Likewise.
 251         * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
 252         * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
 253         * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
 254         * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
 255         * testsuite/30_threads/this_thread/1.cc: Likewise.
 256         * testsuite/30_threads/this_thread/2.cc: Likewise.
 257         * testsuite/30_threads/this_thread/3.cc: Likewise.
 258         * testsuite/30_threads/this_thread/4.cc: Likewise.
 259         * testsuite/30_threads/this_thread/58038.cc: Likewise.
 260         * testsuite/30_threads/thread/70503.cc: Likewise.
 261         * testsuite/30_threads/thread/84532.cc: Likewise.
 262         * testsuite/30_threads/thread/adl.cc: Likewise.
 263         * testsuite/30_threads/thread/cons/1.cc: Likewise.
 264         * testsuite/30_threads/thread/cons/2.cc: Likewise.
 265         * testsuite/30_threads/thread/cons/3.cc: Likewise.
 266         * testsuite/30_threads/thread/cons/4.cc: Likewise.
 267         * testsuite/30_threads/thread/cons/49668.cc: Likewise.
 268         * testsuite/30_threads/thread/cons/5.cc: Likewise.
 269         * testsuite/30_threads/thread/cons/6.cc: Likewise.
 270         * testsuite/30_threads/thread/cons/7.cc: Likewise.
 271         * testsuite/30_threads/thread/cons/8.cc: Likewise.
 272         * testsuite/30_threads/thread/cons/84535.cc: Likewise.
 273         * testsuite/30_threads/thread/cons/9.cc: Likewise.
 274         * testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
 275         * testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
 276         * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
 277         * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
 278         * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
 279         * testsuite/30_threads/thread/id/operators.cc: Likewise.
 280         * testsuite/30_threads/thread/members/1.cc: Likewise.
 281         * testsuite/30_threads/thread/members/2.cc: Likewise.
 282         * testsuite/30_threads/thread/members/3.cc: Likewise.
 283         * testsuite/30_threads/thread/members/4.cc: Likewise.
 284         * testsuite/30_threads/thread/members/5.cc: Likewise.
 285         * testsuite/30_threads/thread/members/hardware_concurrency.cc:
 286         Likewise.
 287         * testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
 288         * testsuite/30_threads/thread/swap/1.cc: Likewise.
 289         * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
 290         * testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
 291         * testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
 292         * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
 293         * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
 294         * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
 295         * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
 296         Likewise.
 297         * testsuite/30_threads/timed_mutex/requirements/
 298         standard_layout.cc: Likewise.
 299         * testsuite/30_threads/timed_mutex/requirements/typedefs.cc: Likewise.
 300         * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
 301         * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
 302         * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
 303         * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
 304         * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
 305         * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
 306         * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
 307         * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
 308         * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
 309         * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
 310         * testsuite/30_threads/try_lock/1.cc: Likewise.
 311         * testsuite/30_threads/try_lock/2.cc: Likewise.
 312         * testsuite/30_threads/try_lock/3.cc: Likewise.
 313         * testsuite/30_threads/try_lock/4.cc: Likewise.
 314         * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
 315         * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
 316         * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
 317         * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
 318         * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
 319         * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
 320         * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
 321         * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
 322         * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
 323         * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
 324         * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
 325         * testsuite/30_threads/unique_lock/requirements/
 326         explicit_instantiation.cc: Likewise.
 327         * testsuite/30_threads/unique_lock/requirements/typedefs.cc: Likewise.
 328
 329         * testsuite/30_threads/async/42819.cc: Remove dg-require-cstdint
 330         directive.
 331         * testsuite/30_threads/async/49668.cc: Likewise.
 332         * testsuite/30_threads/async/54297.cc: Likewise.
 333         * testsuite/30_threads/async/84532.cc: Likewise.
 334         * testsuite/30_threads/async/any.cc: Likewise.
 335         * testsuite/30_threads/async/async.cc: Likewise.
 336         * testsuite/30_threads/async/except.cc: Likewise.
 337         * testsuite/30_threads/async/forced_unwind.cc: Likewise.
 338         * testsuite/30_threads/async/launch.cc: Likewise.
 339         * testsuite/30_threads/async/lwg2021.cc: Likewise.
 340         * testsuite/30_threads/async/sync.cc: Likewise.
 341         * testsuite/30_threads/call_once/39909.cc: Likewise.
 342         * testsuite/30_threads/call_once/49668.cc: Likewise.
 343         * testsuite/30_threads/call_once/60497.cc: Likewise.
 344         * testsuite/30_threads/call_once/call_once1.cc: Likewise.
 345         * testsuite/30_threads/call_once/constexpr.cc: Likewise.
 346         * testsuite/30_threads/call_once/dr2442.cc: Likewise.
 347         * testsuite/30_threads/call_once/once_flag.cc: Likewise.
 348         * testsuite/30_threads/condition_variable/54185.cc: Likewise.
 349         * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
 350         * testsuite/30_threads/condition_variable/cons/assign_neg.cc:
 351         Likewise.
 352         * testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
 353         * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
 354         * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
 355         * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
 356         * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
 357         * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
 358         * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
 359         Likewise.
 360         * testsuite/30_threads/condition_variable/requirements/
 361         standard_layout.cc: Likewise.
 362         * testsuite/30_threads/condition_variable/requirements/typedefs.cc:
 363         * Likewise.
 364         * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
 365         * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
 366         * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
 367         * testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
 368         Likewise.
 369         * testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
 370         Likewise.
 371         * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
 372         * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
 373         * testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
 374         * testsuite/30_threads/future/cons/constexpr.cc: Likewise.
 375         * testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
 376         * testsuite/30_threads/future/cons/default.cc: Likewise.
 377         * testsuite/30_threads/future/cons/move.cc: Likewise.
 378         * testsuite/30_threads/future/cons/move_assign.cc: Likewise.
 379         * testsuite/30_threads/future/members/45133.cc: Likewise.
 380         * testsuite/30_threads/future/members/get.cc: Likewise.
 381         * testsuite/30_threads/future/members/get2.cc: Likewise.
 382         * testsuite/30_threads/future/members/share.cc: Likewise.
 383         * testsuite/30_threads/future/members/valid.cc: Likewise.
 384         * testsuite/30_threads/future/members/wait.cc: Likewise.
 385         * testsuite/30_threads/future/members/wait_for.cc: Likewise.
 386         * testsuite/30_threads/future/members/wait_until.cc: Likewise.
 387         * testsuite/30_threads/future/requirements/explicit_instantiation.cc:
 388         Likewise.
 389         * testsuite/30_threads/headers/condition_variable/types_std_c++0x.cc:
 390         Likewise.
 391         * testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
 392         * testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Likewise.
 393         * testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
 394         * testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
 395         * testsuite/30_threads/lock/1.cc: Likewise.
 396         * testsuite/30_threads/lock/2.cc: Likewise.
 397         * testsuite/30_threads/lock/3.cc: Likewise.
 398         * testsuite/30_threads/lock/4.cc: Likewise.
 399         * testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
 400         * testsuite/30_threads/lock_guard/requirements/
 401         explicit_instantiation.cc: Likewise.
 402         * testsuite/30_threads/lock_guard/requirements/typedefs.cc: Likewise.
 403         * testsuite/30_threads/mutex/cons/1.cc: Likewise.
 404         * testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
 405         * testsuite/30_threads/mutex/cons/constexpr.cc: Likewise.
 406         * testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
 407         * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
 408         * testsuite/30_threads/mutex/lock/1.cc: Likewise.
 409         * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
 410         * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
 411         * testsuite/30_threads/mutex/requirements/standard_layout.cc::
 412         Likewise.
 413         * testsuite/30_threads/mutex/requirements/typedefs.cc: Likewise.
 414         * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
 415         * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
 416         * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
 417         * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
 418         * testsuite/30_threads/once_flag/cons/constexpr.cc: Likewise.
 419         * testsuite/30_threads/packaged_task/49668.cc: Likewise.
 420         * testsuite/30_threads/packaged_task/60564.cc: Likewise.
 421         * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
 422         * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
 423         * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
 424         * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
 425         * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
 426         * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
 427         * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
 428         * testsuite/30_threads/packaged_task/cons/assign_neg.cc: Likewise.
 429         * testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
 430         * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
 431         * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
 432         * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
 433         Likewise.
 434         * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
 435         * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
 436         * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
 437         * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
 438         * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
 439         * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
 440         * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
 441         * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
 442         * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
 443         * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
 444         * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
 445         * testsuite/30_threads/packaged_task/requirements/
 446         explicit_instantiation.cc: Likewise.
 447         * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
 448         * testsuite/30_threads/promise/60966.cc: Likewise.
 449         * testsuite/30_threads/promise/69106.cc: Likewise.
 450         * testsuite/30_threads/promise/cons/1.cc: Likewise.
 451         * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
 452         * testsuite/30_threads/promise/cons/alloc2.cc: Likewise.
 453         * testsuite/30_threads/promise/cons/alloc_min.cc: Likewise.
 454         * testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
 455         * testsuite/30_threads/promise/cons/copy_neg.cc: Likewise.
 456         * testsuite/30_threads/promise/cons/move.cc: Likewise.
 457         * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
 458         * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
 459         * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
 460         * testsuite/30_threads/promise/members/get_future.cc: Likewise.
 461         * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
 462         * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
 463         * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
 464         * testsuite/30_threads/promise/members/set_value.cc: Likewise.
 465         * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
 466         * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
 467         * testsuite/30_threads/promise/members/swap.cc: Likewise.
 468         * testsuite/30_threads/promise/requirements/explicit_instantiation.cc:
 469         * Likewise.
 470         * testsuite/30_threads/promise/uses_allocator.cc: Likewise.
 471
 472         * testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
 473         from namespace std.
 474         * testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
 475         * testsuite/20_util/duration/arithmetic/1.cc: Likewise.
 476         * testsuite/20_util/duration/arithmetic/2.cc: Likewise.
 477         * testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
 478         * testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
 479         * testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
 480         * testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
 481         * testsuite/20_util/duration/cons/1.cc: Likewise.
 482         * testsuite/20_util/duration/cons/1_neg.cc: Likewise.
 483         * testsuite/20_util/duration/cons/2.cc: Likewise.
 484         * testsuite/20_util/duration/cons/54025.cc: Likewise.
 485         * testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
 486         * testsuite/20_util/duration/requirements/explicit_instantiation/
 487         explicit_instantiation.cc: Likewise.
 488         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
 489         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
 490         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
 491         * testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
 492         * testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
 493         * testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
 494         * testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
 495         * testsuite/20_util/ratio/cons/cons1.cc: Likewise.
 496         * testsuite/20_util/ratio/operations/45866.cc: Likewise.
 497         * testsuite/20_util/ratio/operations/47913.cc: Likewise.
 498         * testsuite/20_util/ratio/operations/53840.cc: Likewise.
 499         * testsuite/20_util/ratio/operations/ops1.cc: Likewise.
 500         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
 501         * testsuite/20_util/system_clock/1.cc: Likewise.
 502         * testsuite/20_util/time_point/1.cc: Likewise.
 503         * testsuite/20_util/time_point/2.cc: Likewise.
 504         * testsuite/20_util/time_point/3.cc: Likewise.
 505         * testsuite/20_util/time_point/requirements/explicit_instantiation/
 506         explicit_instantiation.cc: Likewise.
 507         * testsuite/21_strings/basic_string/requirements/
 508         explicit_instantiation/char16_t/1.cc: Likewise.
 509         * testsuite/21_strings/basic_string/requirements/
 510         explicit_instantiation/char32_t/1.cc: Likewise.
 511         * testsuite/21_strings/basic_string_view/requirements/
 512         explicit_instantiation/char16_t/1.cc: Likewise.
 513         * testsuite/21_strings/basic_string_view/requirements/
 514         explicit_instantiation/char32_t/1.cc: Likewise.
 515         * testsuite/21_strings/char_traits/requirements/
 516         explicit_instantiation/char16_t/1.cc: Likewise.
 517         * testsuite/21_strings/char_traits/requirements/
 518         explicit_instantiation/char32_t/1.cc: Likewise.
 519         * testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
 520         * testsuite/22_locale/codecvt/char16_t.cc: Likewise.
 521         * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
 522         * testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
 523         Likewise.
 524         * testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
 525         Likewise.
 526         * testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
 527         Likewise.
 528         * testsuite/22_locale/codecvt/utf8.cc: Likewise.
 529         * testsuite/23_containers/vector/bool/72847.cc: Likewise.
 530         * testsuite/23_containers/vector/debug/multithreaded_swap.cc:
 531         Likewise.
 532         * testsuite/experimental/string_view/requirements/
 533         explicit_instantiation/char16_t/1.cc: Likewise.
 534         * testsuite/experimental/string_view/requirements/
 535         explicit_instantiation/char32_t/1.cc: Likewise.
 536         * testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
 537         1.cc: Likewise.
 538         * testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
 539         1.cc: Likewise.
 540
 541         * include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 542         (random_condition, throw_value_random, throw_allocator_random)
 543         (std::hash<throw_value_random>): Do not define when <tr1/random> is
 544         not usable.
 545         * src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_C99_STDINT_TR1]: Do not
 546         define transactional memory support when <stdint.h> is not usable.
 547
 548         * include/bits/hashtable_policy.h (__detail::__clp2): Use faster
 549         implementation that doesn't depend on <stdint.h> types.
 550         * include/std/memory (align) [!_GLIBCXX_USE_C99_STDINT_TR1]: Use
 551         std::size_t when std::uintptr_t is not usable.
 552         [!_GLIBCXX_USE_C99_STDINT_TR1] (pointer_safety, declare_reachable)
 553         (undeclare_reachable, declare_no_pointers, undeclare_no_pointers):
 554         Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
 555
 556         * include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 557         (hash<u16string>, hash<u32string>): Remove dependency on
 558         _GLIBCXX_USE_C99_STDINT_TR1.
 559         * include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 560         (char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
 561         _GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
 562         __UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
 563         * include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 564         (codecvt<char16_t, char, mbstate_t>)
 565         (codecvt<char32_t, char, mbstate_t>)
 566         (codecvt_byname<char16_t, char, mbstate_t>)
 567         (codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
 568         on _GLIBCXX_USE_C99_STDINT_TR1.
 569         * include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 570         (_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
 571         * include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 572         (char_traits<char16_t>, char_traits<char32_t>)
 573         (basic_string<char16_t>, basic_string<char32_t>): Remove dependency
 574         on _GLIBCXX_USE_C99_STDINT_TR1.
 575         * include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
 576         (u16string_view, u32string_view, hash<u16string_view>)
 577         (hash<u32string_view>, operator""sv(const char16_t, size_t))
 578         (operator""sv(const char32_t, size_t)): Likewise.
 579         * include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 580         (hash<__u16vstring>, hash<__u32vstring>): Likewise.
 581         * include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 582         (__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
 583         (__u32sso_string, __u32rc_string): Likewise.
 584         * include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
 585         (codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
 586         * include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
 587         (u16string_view, u32string_view, hash<u16string_view>)
 588         (hash<u32string_view>, operator""sv(const char16_t, size_t))
 589         (operator""sv(const char32_t, size_t)): Likewise.
 590         * src/c++11/codecvt.cc: Likewise.
 591         * src/c++98/locale_init.cc: Likewise.
 592         * src/c++98/localename.cc: Likewise.
 593
 594         * include/bits/atomic_futex.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 595         (__atomic_futex_unsigned_base): Remove dependency on
 596         _GLIBCXX_USE_C99_STDINT_TR1 macro.
 597         * include/bits/unique_lock.h [!_GLIBCXX_USE_C99_STDINT_TR1]
 598         (unique_lock): Remove dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 599         * include/c_global/cstdint [!_GLIBCXX_USE_C99_STDINT_TR1] (intmax_t)
 600         (uintmax_t): Define using predefined macros.
 601         * include/std/chrono [!_GLIBCXX_USE_C99_STDINT_TR1] (duration)
 602         (time_point, system_clock, high_resolution_clock, steady_clock): Remove
 603         dependency on _GLIBCXX_USE_C99_STDINT_TR1 macro.
 604         (nanoseconds, microseconds, milliseconds, seconds, minutes, hours):
 605         [!_GLIBCXX_USE_C99_STDINT_TR1]: Define using __INT64_TYPE__ or
 606         long long when <stdint.h> is not usable.
 607         * include/std/condition_variable [!_GLIBCXX_USE_C99_STDINT_TR1]
 608         (condition_variable, condition_variable_any): Remove dependency on
 609         _GLIBCXX_USE_C99_STDINT_TR1.
 610         * include/std/future [!_GLIBCXX_USE_C99_STDINT_TR1] (future, promise)
 611         (packaged_task, async): Likewise.
 612         * include/std/mutex [!_GLIBCXX_USE_C99_STDINT_TR1] (recursive_mutex)
 613         (timed_mutex, recursive_timed_mutex, try_lock, lock, scoped_lock)
 614         (once_flag, call_once): Likewise.
 615         * include/std/ratio [!_GLIBCXX_USE_C99_STDINT_TR1] (ratio): Likewise.
 616         * include/std/shared_mutex [!_GLIBCXX_USE_C99_STDINT_TR1]
 617         (shared_mutex, shared_timed_mutex, shared_lock): Likewise.
 618         * include/std/thread [!_GLIBCXX_USE_C99_STDINT_TR1] (thread)
 619         (this_thread::get_id, this_thread::yield, this_thread::sleep_for)
 620         (this_thread::sleep_until): Likewise.
 621         * src/c++11/chrono.cc: Remove dependency on
 622         _GLIBCXX_USE_C99_STDINT_TR1 macro.
 623         * src/c++11/condition_variable.cc: Likewise.
 624         * src/c++11/futex.cc: Likewise.
 625         * src/c++11/future.cc: Likewise.
 626         * src/c++11/mutex.cc: Likewise.
 627         * src/c++11/thread.cc: Likewise.
 628         * testsuite/20_util/duration/literals/range_neg.cc: Adjust dg-error.
 629         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
 630         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
 631         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
 632         * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.
 633         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
 634
 635 2018-07-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 636
 637         PR libstdc++/77691
 638         * testsuite/experimental/memory_resource/new_delete_resource.cc:
 639         xfail execution on 32-bit Solaris/x86.
 640
 641 2018-07-26  Marc Glisse  <marc.glisse@inria.fr>
 642
 643         * include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
 644         (_Vector_impl_data::_M_swap_data): Use _M_copy_data.
 645         (vector::_M_move_assign): Reorder the swaps.
 646
 647 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
 648
 649         PR libstdc++/86676
 650         * testsuite/20_util/monotonic_buffer_resource/release.cc: Request
 651         same alignment for post-release allocation.
 652
 653 2018-07-25  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         PR libstdc++/86676
 656         * testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
 657         buffer being misaligned and so returned pointer not being at start.
 658
 659         * include/experimental/memory_resource: Include <cstddef> header.
 660
 661         * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++17.
 662         * src/Makefile.am: Add comment.
 663         * src/c++17/Makefile.in: Regenerate.
 664
 665         * include/Makefile.am: Add new <bits/unique_lock.h> header.
 666         * include/Makefile.in: Regenerate.
 667         * include/bits/std_mutex.h [!_GLIBCXX_USE_C99_STDINT_TR1] (mutex)
 668         (lock_guard): Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
 669         (unique_lock): Move definition to ...
 670         * include/bits/unique_lock.h: New header.
 671         [!_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock): Define unconditionally.
 672         [_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock(mutex_type&, time_point))
 673         (unique_lock(mutex_type&, duration), unique_lock::try_lock_until)
 674         (unique_lock::try_lock_for): Define only when <chrono> is usable.
 675         * include/std/condition_variable: Include <bits/unique_lock.h>.
 676         * include/std/mutex: Likewise.
 677
 678 2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
 679
 680         * config/abi/pre/gnu.ver: Export new symbols.
 681         * configure: Regenerate.
 682         * include/Makefile.am: Add new <memory_resource> header.
 683         * include/Makefile.in: Regenerate.
 684         * include/precompiled/stdc++.h: Include <memory_resource> for C++17.
 685         * include/std/memory_resource: New header.
 686         (memory_resource, polymorphic_allocator, new_delete_resource)
 687         (null_memory_resource, set_default_resource, get_default_resource)
 688         (pool_options, monotonic_buffer_resource): Define.
 689         * src/Makefile.am: Add c++17 directory.
 690         * src/Makefile.in: Regenerate.
 691         * src/c++11/Makefile.am: Fix comment.
 692         * src/c++17/Makefile.am: Add makefile for new sub-directory.
 693         * src/c++17/Makefile.in: Generate.
 694         * src/c++17/memory_resource.cc: New.
 695         (newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
 696         (default_res, new_delete_resource, null_memory_resource)
 697         (set_default_resource, get_default_resource): Define.
 698         * testsuite/20_util/memory_resource/1.cc: New test.
 699         * testsuite/20_util/memory_resource/2.cc: New test.
 700         * testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
 701         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
 702         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
 703         * testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
 704         * testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
 705         New test.
 706         * testsuite/20_util/polymorphic_allocator/1.cc: New test.
 707         * testsuite/20_util/polymorphic_allocator/resource.cc: New test.
 708         * testsuite/20_util/polymorphic_allocator/select.cc: New test.
 709         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
 710         Define concrete memory resource for testing.
 711         (__gnu_test::default_resource_mgr): Define RAII helper for changing
 712         default resource.
 713
 714         PR libstdc++/86658
 715         * include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
 716         parameter by reference, to avoid copying invalid iterators.
 717         * testsuite/25_algorithms/copy/86658.cc: New test.
 718
 719         * include/std/bit (__countl_zero, __countr_zero, __popcount): Use
 720         local variables for number of digits instead of type aliases.
 721         (__log2p1): Remove redundant branch also checked in __countl_zero.
 722
 723         * include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
 724         conditions. Add comments.
 725         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
 726         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
 727         * testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
 728
 729         * include/bits/uses_allocator.h (__is_erased_or_convertible): Remove.
 730         (__uses_allocator_helper): Check conditions directly instead of
 731         using __is_erased_or_convertible.
 732
 733         * include/experimental/memory_resource: Adjust comments and
 734         whitespace.
 735         (__resource_adaptor_imp): Add second template parameter for type of
 736         memory resource base class.
 737         (memory_resource): Define default constructor, destructor, copy
 738         constructor and copy assignment operator as defaulted.
 739
 740         PR libstdc++/70966
 741         * include/experimental/memory_resource (__get_default_resource): Use
 742         placement new to create an object with dynamic storage duration.
 743
 744 2018-07-23  Jonathan Wakely  <jwakely@redhat.com>
 745
 746         PR libstdc++/70940
 747         * include/experimental/memory_resource
 748         (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
 749         (__resource_adaptor_common::__guaranteed_alignment): New helper to
 750         give maximum alignment an allocator guarantees. Specialize for known
 751         allocators using new and malloc.
 752         (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
 753         (__resource_adaptor_imp::do_deallocate): Likewise.
 754         * testsuite/experimental/memory_resource/new_delete_resource.cc:
 755         Check that new and delete are called with expected sizes.
 756
 757 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
 758
 759         PR libstdc++/86595
 760         * include/bits/fs_dir.h (directory_entry::refresh(error_code&)): Add
 761         noexcept.
 762
 763 2018-07-20  Fangrui Song  <maskray@google.com>
 764
 765         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Use
 766         _GLIBCXX_VISIBILITY(default).
 767
 768 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
 769
 770         PR libstdc++/86603
 771         * include/std/version: Move __cpp_lib_list_remove_return_type macro.
 772
 773 2018-07-19  Jonathan Wakely  <jwakely@redhat.com>
 774
 775         * include/std/type_traits (__is_member_object_pointer_helper): Use
 776         __not_<is_function<_Tp>>::type instead of integral_constant.
 777         (__is_member_function_pointer_helper): Likewise for
 778         is_function<_Tp>::type.
 779         (is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
 780         (__do_is_nt_destructible_impl): Use __bool_constant and reindent.
 781         (is_trivially_constructible): Remove redundant use of
 782         is_constructible.
 783         (__is_trivially_copy_assignable_impl): Remove redundant use of
 784         is_copy_assignable.
 785         (__is_trivially_move_assignable_impl): Remove redundant use of
 786         is_move_assignable.
 787         (is_trivially_destructible): Use __bool_constant.
 788         * testsuite/20_util/is_trivially_assignable/value.cc: Add some more
 789         tests for scalar types.
 790
 791 2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
 792
 793         * include/bits/stl_algobase.h (__copy_move_a): Used
 794         __is_trivially_copyable.
 795         (__copy_move_backward_a): Likewise.
 796         * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
 797         New test.
 798
 799 2018-07-17  Jonathan Wakely  <jwakely@redhat.com>
 800
 801         PR libstdc++/86450
 802         * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
 803         (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
 804         * configure: Regenerate.
 805         * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
 806         * doc/Makefile.in: Regenerate.
 807         * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
 808         * include/Makefile.in: Regenerate.
 809         * libsupc++/Makefile.in: Regenerate.
 810         * po/Makefile.in: Regenerate.
 811         * python/Makefile.in: Regenerate.
 812         * src/Makefile.in: Regenerate.
 813         * src/c++11/Makefile.in: Regenerate.
 814         * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
 815         from -Wabi=2 that don't affect exported symbols.
 816         * src/c++98/Makefile.in: Regenerate.
 817         * src/filesystem/Makefile.in: Regenerate.
 818         * testsuite/Makefile.in: Regenerate.
 819
 820         * src/c++11/compatibility-thread-c++0x.cc [_GLIBCXX_SHARED]
 821         (_Async_state_common::_M_join): Simplify use of std::call_once and
 822         corresponding explicit instantiation.
 823         (_Maybe_wrap_member_pointer, _Bind_simple, _Bind_simple_helper)
 824         (__bind_simple): Remove definitions and explicit instantiation that
 825         are not required by exported symbols.
 826
 827 2018-07-16  Jonathan Wakely  <jwakely@redhat.com>
 828
 829         * scripts/create_testsuite_files: Fix typo in comment.
 830
 831         PR libstdc++/86537
 832         * include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
 833         non-standard partial specialization.
 834         * include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
 835         (less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
 836         * testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
 837
 838 2018-07-16  Andreas Krebbel  <krebbel@linux.ibm.com>
 839
 840         * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
 841         * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
 842         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 843
 844 2018-07-06  François Dumont  <fdumont@gcc.gnu.org>
 845
 846         * include/debug/functions.h (__gnu_debug::__check_string): Move...
 847         * include/debug/string (__gnu_debug::__check_string): ... here.
 848         (_GLIBCXX_DEBUG_VERIFY_STR_COND_AT): New.
 849         (__glibcxx_check_string_n_constructor): New.
 850         (__gnu_debug::basic_string<>(const _CharT*, size_type, const _Alloc&)):
 851         Use latter.
 852         (__glibcxx_check_string_constructor): New.
 853         (__gnu_debug::basic_string<>(const _CharT*, const _Alloc&)):
 854         Use latter.
 855         * testsuite/21_strings/basic_string/debug/1_neg.cc: New.
 856         * testsuite/21_strings/basic_string/debug/2_neg.cc: New.
 857
 858 2018-07-06  Jonathan Wakely  <jwakely@redhat.com>
 859
 860         PR libstdc++/84928 use std::move in <numeric> algorithms
 861         * include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
 862         conditionally move, according to __cplusplus value.
 863         (accumulate, inner_product, partial_sum, adjacent_difference): Use
 864         _GLIBCXX_MOVE_IF_20.
 865         * testsuite/26_numerics/accumulate/lwg2055.cc: New test.
 866         * testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
 867         * testsuite/26_numerics/inner_product/lwg2055.cc: New test.
 868         * testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
 869
 870         * config/abi/pre/gnu.ver: Use wildcards to combine related patterns.
 871
 872         P0935R0 Eradicating unnecessarily explicit default constructors
 873         * config/abi/pre/gnu.ver: Tighten existing patterns and export new
 874         default constructor symbols.
 875         * include/std/sstream (basic_stringbuf, basic_istringstream)
 876         (basic_ostringstream, basic_stringstream): Remove default arguments
 877         from explicit constructors taking ios_base::openmode and add separate
 878         non-explicit default constructors.
 879         * testsuite/27_io/basic_istringstream/cons/default.cc: New.
 880         * testsuite/27_io/basic_ostringstream/cons/default.cc: New.
 881         * testsuite/27_io/basic_stringstream/cons/default.cc: New.
 882         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
 883         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
 884
 885         * include/std/variant (__accepted_index): Use void_t.
 886
 887 2018-07-05  Jonathan Wakely  <jwakely@redhat.com>
 888
 889         PR libstdc++/85831
 890         * config/abi/pre/gnu.ver: Export move constructors and move
 891         assignment operators for std::logic_error and std::runtime_error.
 892         * include/std/stdexcept: Use _GLIBCXX_NOTHROW instead of
 893         _GLIBCXX_USE_NOEXCEPT.
 894         (logic_error, runtime_error): Declare move constructors and move
 895         assignment operators. When not declared already, define copy
 896         constructors and copy assignment operators as explicit-defaulted.
 897         (domain_error, invalid_argument, length_error, out_of_range)
 898         (overflow_error, underflow_error): Define move constructors and move
 899         assignment operators as explicitly-defaulted.
 900         * libsupc++/exception.h (exception): Likewise.
 901         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Define
 902         move constructors and move assignment operators as defaulted.
 903         * testsuite/19_diagnostics/stdexcept.cc: Check that constructors and
 904         assignment operators are defined.
 905
 906         * testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
 907         COW strings.
 908         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
 909         Likewise.
 910         * testsuite/21_strings/basic_string/requirements/
 911         explicit_instantiation/debug.cc: Likewise.
 912
 913         PR libstdc++/58265
 914         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 915         (basic_string::assign(basic_string&&)): Add conditional noexcept
 916         depending on the allocator's is_always_equal property (LWG 2063).
 917         * testsuite/21_strings/basic_string/modifiers/assign/char/
 918         move_assign.cc: Check for non-throwing exception specification.
 919         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
 920         move_assign.cc: Likewise.
 921
 922         PR libstdc++/58265
 923         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 924         [_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
 925         Add GLIBCXX_NOEXCEPT.
 926         (basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
 927         to depend on the allocator's is_always_equal property (LWG 2063).
 928         (basic_string::swap(basic_string&)): Likewise.
 929         * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
 930         (basic_string::swap(basic_string&)): Likewise.
 931         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
 932         Check is_nothrow_move_assignable.
 933         * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
 934         Check is_nothrow_move_assignable.
 935         * testsuite/21_strings/basic_string/cons/char/
 936         noexcept_move_construct.cc: Likewise.
 937         * testsuite/21_strings/basic_string/cons/wchar_t/
 938         noexcept_move_construct.cc: Likewise.
 939
 940 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 941
 942         P0646R1 Improving the Return Value of Erase-Like Algorithms I
 943         * include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
 944         Define.
 945         (forward_list::__remove_return_type): Define typedef as size_type or
 946         void, according to __cplusplus value.
 947         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 948         empty, according to __cplusplus value.
 949         (forward_list::remove, forward_list::unique): Use typedef and macro
 950         to change return type and add abi-tag for C++2a.
 951         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
 952         typedef to change return type for C++2a.
 953         * include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
 954         (forward_list::remove, forward_list::remove_if<Pred>)
 955         (forward_list::unique<BinPred>): Return number of removed elements
 956         for C++2a.
 957         * include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
 958         (list::remove, list::unique, list::remove_if<Predicate>)
 959         (list::unique<BinaryPredicate>): Return number of removed elements
 960         for C++2a.
 961         * include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
 962         (list::__remove_return_type): Define typedef as size_type or
 963         void, according to __cplusplus value.
 964         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 965         empty, according to __cplusplus value.
 966         (list::remove, list::unique): Use typedef and macro to change return
 967         type and add abi-tag for C++2a.
 968         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
 969         typedef to change return type for C++2a.
 970         * include/std/version (__cpp_lib_list_remove_return_type): Define.
 971         * testsuite/23_containers/forward_list/operations/
 972         remove_cxx20_return.cc: New.
 973         * testsuite/23_containers/forward_list/operations/
 974         unique_cxx20_return.cc: New.
 975
 976         P0458R2 Checking for Existence of an Element in Associative Containers
 977         * include/bits/stl_map.h (map::contains): Add for C++2a.
 978         * include/bits/stl_multimap.h (multimap::contains): Likewise.
 979         * include/bits/stl_multiset.h (multiset::contains): Likewise.
 980         * include/bits/stl_set.h (set::contains): Likewise.
 981         * include/bits/stl_tree.h (__has_is_transparent_t): Define alias.
 982         (_Rb_tree::_M_find_tr, _Rb_tree::_M_count_tr)
 983         (_Rb_tree::_M_lower_bound_tr, _Rb_tree::_M_upper_bound_tr)
 984         (_Rb_tree::_M_equal_range_tr): Use __has_is_transparent_t.
 985         * include/bits/unordered_map.h (unordered_map::contains)
 986         (unordered_multimap::contains): Add for C++2a.
 987         * include/bits/unordered_set.h (unordered_set::contains)
 988         (unordered_multiset::contains): Likewise.
 989         * testsuite/23_containers/map/operations/contains.cc: New.
 990         * testsuite/23_containers/multimap/operations/contains.cc: New.
 991         * testsuite/23_containers/multiset/operations/contains.cc: New.
 992         * testsuite/23_containers/set/operations/contains.cc: New.
 993         * testsuite/23_containers/unordered_map/operations/contains.cc: New.
 994         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
 995         New.
 996         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
 997         New.
 998         * testsuite/23_containers/unordered_set/operations/contains.cc: New.
 999
1000 2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
1001
1002         PR libstdc++/86272
1003         * include/debug/string
1004         (__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
1005         Use __glibcxx_check_insert_range.
1006         * 21_strings/basic_string/cons/char/1.cc: Adapt test to use
1007         __gnu_debug::string when _GLIBCXX_DEBUG.
1008         * 21_strings/basic_string/init-list.cc: Likewise.
1009         * 21_strings/basic_string/modifiers/insert/char/1.cc: Likewise.
1010         * 21_strings/basic_string/modifiers/insert/char/2.cc: Likewise.
1011         * 21_strings/basic_string/modifiers/insert/char/83328.cc: Likewise.
1012         * 21_strings/basic_string/types/1.cc: Likewise.
1013
1014 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1015
1016         * testsuite/25_algorithms/make_heap/complexity.cc: Require effective
1017         target for std::random_device.
1018         * testsuite/26_numerics/random/random_device/cons/default.cc:
1019         Likewise.
1020         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
1021         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
1022         * testsuite/experimental/random/randint.cc: Likewise.
1023         * testsuite/lib/libstdc++.exp
1024         (check_effective_target_random_device): New proc.
1025
1026 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1027             Jakub Jelinek  <jakub@redhat.com>
1028
1029         * include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
1030
1031 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1032
1033         PR libstdc++/86398
1034         * include/std/type_traits (is_trivially_constructible): Check
1035         is_constructible before __is_trivially_constructible.
1036         * testsuite/20_util/is_trivially_constructible/value.cc: Add more
1037         tests, including negative cases.
1038         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
1039         zero for dg-error lineno.
1040         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
1041         Likewise.
1042
1043         * include/std/bit (__rotl, __rotr): Avoid branch.
1044         (_If_is_unsigned_integer): Use remove_cv_t.
1045         * testsuite/26_numerics/bit/bitops.count/popcount.cc: New.
1046
1047 2018-07-03  Jonathan Wakely  <jwakely@redhat.com>
1048
1049         P0556R3 Integral power-of-2 operations, P0553R2 Bit operations
1050         * include/Makefile.am: Add new header.
1051         * include/Makefile.in: Regenerate.
1052         * include/precompiled/stdc++.h: Include new header.
1053         * include/std/bit: New header.
1054         (__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
1055         (__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
1056         Define for C++14.
1057         [!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
1058         (countr_one, popcount): Define for C++2a. Also overload for std::byte.
1059         (ispow2, ceil2, floor2, log2p1): Define for C++2a.
1060         [!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
1061         std::byte.
1062         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
1063         * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
1064         * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
1065         * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
1066         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
1067         * testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
1068         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
1069         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
1070         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
1071         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
1072
1073         * include/bits/alloc_traits.h: Remove redundant preprocessor
1074         condition.
1075
1076 2018-07-03  François Dumont  <fdumont@gcc.gnu.org>
1077
1078         * include/bits/stl_algobase.h (__niter_wrap): New.
1079         (__copy_move_a2(_II, _II, _OI)): Use latter.
1080         (__copy_move_backward_a2(_BI1, _BI1, _BI2)): Likewise.
1081         (fill_n(_OI, _Size, const _Tp&)): Likewise.
1082         (equal(_II1, _II1, _II2)): Use __glibcxx_requires_can_increment.
1083         * include/debug/stl_iterator.h
1084         (std::__niter_base(const __gnu_cxx::_Safe_iterator<
1085         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New declaration.
1086         * include/debug/vector (__niter_base(const __gnu_cxx::_Safe_iterator<
1087         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New.
1088
1089 2018-07-02  Jonathan Wakely  <jwakely@redhat.com>
1090
1091         P0758R1 Implicit conversion traits
1092         * include/std/type_traits [__cplusplus > 201703]
1093         (__is_convertible_helper::__is_nothrow_type): Define new member.
1094         (__is_convertible_helper<_From, _To, false>::__test_aux1): Add
1095         noexcept.
1096         (__is_convertible_helper<_From, _To, false>::__test_nothrow)
1097         (__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
1098         new members.
1099         (is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
1100         * testsuite/20_util/is_nothrow_convertible/value.cc: New.
1101         * testsuite/20_util/is_nothrow_convertible/requirements/
1102         explicit_instantiation.cc: New.
1103         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1104         New.
1105
1106         P0887R1 The identity metafunction
1107         * include/std/type_traits (type_identity, type_identity_t): Define
1108         for C++2a.
1109         * testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
1110         * testsuite/20_util/type_identity/requirements/
1111         explicit_instantiation.cc:New.
1112         * testsuite/20_util/type_identity/requirements/typedefs.cc: New.
1113
1114         * include/bits/regex.h (sub_match::operator string_type): Call str().
1115         (sub_match::compare): Use _M_str() instead of str().
1116         (sub_match::_M_compare): New public function.
1117         (sub_match::__string_view): New helper type.
1118         (sub_match::_M_str): New overloaded functions to avoid creating a
1119         string_type object when not needed.
1120         (operator==, operator!=, operator<, operator>, operator<=, operator>=):
1121         Use sub_match::_M_compare instead of creating string_type objects.
1122         Fix Doxygen comments.
1123         * include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
1124         (__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
1125         simplify.
1126         (__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
1127         __enable_if_t.
1128         * include/std/type_traits (__enable_if_t): Define for C++11.
1129         * testsuite/28_regex/sub_match/compare.cc: New.
1130         * testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
1131         trait.
1132         (input_iterator_wrapper): Use remove_cv for value_type argument of
1133         std::iterator base class.
1134
1135 2018-06-29  Jonathan Wakely  <jwakely@redhat.com>
1136
1137         * testsuite/20_util/add_rvalue_reference/requirements/alias_decl.cc:
1138         Add whitespace to dejagnu directive.
1139         * testsuite/23_containers/array/element_access/at_neg.cc: Likewise.
1140
1141 2018-06-27  François Dumont  <fdumont@gcc.gnu.org>
1142
1143         * include/bits/stl_vector.h
1144         (struct _Vector_base<>::_Vector_impl_data): New.
1145         (struct _Vector_base<>::_Vector_impl): Inherit from latter.
1146         (_Vector_base<>::_Vector_impl::_M_swap_data): Move...
1147         (_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
1148         (_Vector_base<>::_Vector_impl()): Add noexcept qualification.
1149         (_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
1150         (_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
1151         (_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
1152         (_Vector_base()): Default.
1153         (_Vector_base(_Vector_base&&)): Default.
1154         (_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
1155         (_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
1156         (_Vector_base::_M_create_storage(size_t)): Make protected.
1157         (vector()): Default.
1158         (vector(vector&&)): Default.
1159         (vector(vector&&, const allocator_type&, true_type)): New.
1160         (vector(vector&&, const allocator_type&, false_type)): New.
1161         (vector(vector&&, const allocator_type&)): Use latters.
1162         (vector(_InputIte, _InputIte, const allocator_type&)): Call
1163         _M_range_initialize directly.
1164         * include/debug/vector
1165         (vector(vector&&, const allocator_type&)): Add noexcept qualification.
1166         * testsuite/23_containers/vector/allocator/default_init.cc: New.
1167         * testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
1168         static assertions.
1169
1170 2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
1171
1172         * include/bits/cpp_type_traits.h [__cplusplus >= 201703]
1173         (__is_byte<byte>): Define specialization for std::byte.
1174
1175         PR libstdc++/86138
1176         * include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
1177         Declare explicit instantiations of COW empty reps and I/O functions.
1178
1179 2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
1180
1181         * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
1182         directives.
1183         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
1184
1185 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
1186
1187         * include/bits/regex.tcc (regex_iterator::operator==): Add missing
1188         noexcept.
1189
1190 2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
1191
1192         PR libstdc++/86112
1193         * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
1194         Replace dict comprehension.
1195
1196         PR libstdc++/81092
1197         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1198
1199         PR libstdc++/86292
1200         * include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
1201         Add try-catch block.
1202         * testsuite/23_containers/vector/cons/86292.cc: New.
1203
1204         * doc/xml/manual/status_cxx2017.xml: Document N4531 status.
1205
1206         * include/experimental/algorithm (sample, shuffle): Add new overloads
1207         using per-thread random number engine.
1208         * testsuite/experimental/algorithm/sample.cc: Simpify and reduce
1209         dependencies by using __gnu_test::test_container.
1210         * testsuite/experimental/algorithm/sample-2.cc: New.
1211         * testsuite/experimental/algorithm/shuffle.cc: New.
1212
1213 2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
1214
1215         * config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
1216         different size_t mangling on 32-bit targets.
1217
1218         PR libstdc++/86280
1219         * include/experimental/memory_resource
1220         (__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
1221         enough for result of left shift.
1222
1223         PR libstdc++/86138
1224         * include/bits/basic_string.tcc:
1225         [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
1226         (basic_string<char>::_Rep::_S_empty_rep_storage)
1227         (basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
1228         instantiation declarations.
1229         [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
1230         explicit instantiation declarations.
1231         * testsuite/21_strings/basic_string/cons/char/86138.cc: New.
1232         * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
1233
1234 2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
1235
1236         PR libstdc++/83328
1237         * acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
1238         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
1239         * configure: Regenerate.
1240         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
1241         (basic_string::insert(const_iterator, initializer_list<C>)): Add.
1242         [_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
1243         (basic_string::insert(iterator, initializer_list<C>)): Suppress
1244         definition.
1245         * include/debug/string (basic_string::insert(iterator, C)): Change
1246         first parameter to const_iterator.
1247         (basic_string::insert(iterator, size_type, C)): Likewise. Change
1248         return type to iterator.
1249         (basic_string::insert(iterator, InputIterator, InputIterator)):
1250         Likewise.
1251         (basic_string::insert(iterator, initializer_list<C>)): Change first
1252         parameter to const_iterator and return type to iterator.
1253         * src/c++11/string-inst.cc: Extend comment.
1254         * testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
1255         New.
1256         * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
1257         New.
1258         * testsuite/util/testsuite_abi.cc: Add new symbol version.
1259
1260         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1261
1262         PR libstdc++/70940
1263         * include/experimental/memory_resource
1264         (__resource_adaptor_imp::do_deallocate): Add missing return.
1265         * testsuite/experimental/memory_resource/new_delete_resource.cc: New.
1266         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
1267         resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
1268         __gnu_cxx::malloc_allocator.
1269
1270         PR libstdc++/70940
1271         * include/experimental/memory_resource (__resource_adaptor_common):
1272         New base class.
1273         (__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
1274         pointer from unaligned, and vice versa.
1275         (__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
1276         allocated pointer to meet alignment request.
1277         (__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
1278         original pointer for deallocation.
1279         (__resource_adaptor_imp::do_is_equal): Reformat.
1280         (__resource_adaptor_imp::_S_aligned_size): Remove.
1281         (__resource_adaptor_imp::_S_supported): Remove.
1282         (new_delete_resource): Use __gnu_cxx::new_allocator.
1283         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
1284         extended alignments and use debug_allocator to check for matching
1285         allocate/deallocate pairs.
1286
1287 2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
1288
1289         * include/debug/safe_iterator.h
1290         (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
1291         Compare __x base iterator with a value-initialized iterator of the
1292         same type.
1293
1294 2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
1295
1296         PR libstdc++/70966
1297         * include/experimental/memory_resource (__resource_adaptor_imp): Add
1298         static assertions to enforce requirements on pointer types.
1299         (__resource_adaptor_imp::get_allocator()): Add noexcept.
1300         (new_delete_resource, null_memory_resource): Return address of an
1301         object with dynamic storage duration.
1302         (__null_memory_resource): Remove.
1303         * testsuite/experimental/memory_resource/70966.cc: New.
1304
1305         * testsuite/20_util/duration/arithmetic/dr3050.cc: Add new test
1306         missed from recent commit.
1307
1308 2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
1309
1310         * include/std/utility: Remove unused <exception> header.
1311
1312 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
1313
1314         LWG 2975 ensure construct(pair<T,U>*, ...) used to construct pairs
1315         * include/std/scoped_allocator (__not_pair): Define SFINAE helper.
1316         (construct(_Tp*, _Args&&...)): Remove from overload set when _Tp is
1317         a specialization of std::pair.
1318         * testsuite/20_util/scoped_allocator/construct_pair.cc: Ensure
1319         pair elements are constructed correctly.
1320
1321         LWG 2989 hide path iostream operators from normal lookup
1322         * include/bits/fs_path.h (operator<<, operator>>): Define inline as
1323         friends.
1324         * testsuite/27_io/filesystem/path/io/dr2989.cc: New.
1325
1326         LWG 3050 Fix cv-qualification of convertibility constraints
1327         * include/std/chrono (duration, operator*, operator/, operator%): Use
1328         const-qualified type as source type in is_convertible constraints.
1329         * testsuite/20_util/duration/arithmetic/dr3050.cc: New.
1330         * testsuite/20_util/duration/cons/dr3050.cc: New.
1331         * testsuite/20_util/duration/literals/range.cc: Rename to...
1332         * testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
1333         dg-error lineno.
1334
1335 2018-06-18  Maya Rashish  <coypu@sdf.org>
1336
1337         * crossconfig.m4: Handle OpenBSD just like NetBSD.
1338         * configure: Rebuilt.
1339
1340 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
1341
1342         P0754R2 <version> header
1343         * include/Makefile.am: Add new header.
1344         * include/Makefile.in: Regenerate.
1345         * include/bits/c++config: Change doxygen comment to suggest <version>
1346         instead of <iosfwd>.
1347         * include/precompiled/stdc++.h: Include <cwchar> and <cwctype>
1348         unconditionally.  Add C++17 and C++20 headers.
1349         * include/std/version: New header.
1350         * testsuite/17_intro/headers/c++2017/all_attributes.cc: New.
1351         * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc: New.
1352         * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: New.
1353         * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc: New.
1354         * testsuite/17_intro/headers/c++2017/operator_names.cc: New.
1355         * testsuite/17_intro/headers/c++2017/stdc++.cc: New.
1356         * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
1357         New.
1358         * testsuite/17_intro/headers/c++2020/all_attributes.cc: New.
1359         * testsuite/17_intro/headers/c++2020/all_no_exceptions.cc: New.
1360         * testsuite/17_intro/headers/c++2020/all_no_rtti.cc: New.
1361         * testsuite/17_intro/headers/c++2020/all_pedantic_errors.cc: New.
1362         * testsuite/17_intro/headers/c++2020/operator_names.cc: New.
1363         * testsuite/17_intro/headers/c++2020/stdc++.cc: New.
1364         * testsuite/17_intro/headers/c++2020/stdc++_multiple_inclusion.cc:
1365         New.
1366         * testsuite/18_support/headers/version/macros.cc: New.
1367         * testsuite/18_support/headers/version/macros.cc: New.
1368
1369         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
1370         enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
1371         symlink.
1372         * config.h.in: Regenerate.
1373         * configure: Regenerate.
1374         * configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.
1375
1376         LWG 3035. std::allocator's constructors should be constexpr
1377         * include/bits/allocator.h (allocator): Add constexpr to constructors
1378         for C++2a. Replace dynamic exception specifications with NOTHROW
1379         macro.
1380         (allocator, operator==, operator!=): Replace USE_NOEXCEPT macro with
1381         NOTHROW.
1382         * include/bits/c++config (_GLIBCXX20_CONSTEXPR): Define.
1383         * include/ext/malloc_allocator.h (malloc_allocator): Add constexpr
1384         to constructors for C++2a.
1385         * include/ext/new_allocator.h (new_allocator): Likewise.
1386
1387 2018-06-16  Jonathan Wakely  <jwakely@redhat.com>
1388
1389         LWG 3076 basic_string CTAD ambiguity
1390         * doc/xml/manual/intro.xml: Document LWG 3076 change.
1391         * include/bits/basic_string.h
1392         [__cpp_deduction_guides && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
1393         (basic_string(const _CharT*, const _Alloc&)): Turn into a function
1394         template constrained by _RequireAllocator.
1395         (basic_string(size_type, _CharT, const _Alloc&)): Likewise.
1396         * src/c++11/string-inst.cc (_GLIBCXX_DEFINING_STRING_INSTANTIATIONS):
1397         Define.
1398         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
1399         deduction
1400         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
1401         Likewise.
1402
1403 2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
1404
1405         PR libstdc++/86169
1406         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
1407         (basic_string::data()): Unshare string.
1408         * testsuite/21_strings/basic_string/operations/data/char/86169.cc:
1409         New.
1410
1411         * include/std/string_view (basic_string_view(const CharT*)): Remove
1412         check for null pointer and add nonnull attribute.
1413         (compare(const CharT*), compare(size_type, size_type, const CharT*))
1414         (find(const CharT*, size_type), rfind(const CharT*, size_type))
1415         (find_first_of(const CharT*, size_type))
1416         (find_last_of(const CharT*, size_type))
1417         (find_first_not_of(const CharT*, size_type))
1418         (find_last_not_of(const CharT*, size_type)): Add nonnull attribute.
1419         * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: New.
1420         * testsuite/21_strings/basic_string_view/operations/compare/char/
1421         nonnull.cc: New.
1422         * testsuite/21_strings/basic_string_view/operations/find/char/
1423         nonnull.cc: New.
1424         * testsuite/21_strings/basic_string_view/operations/rfind/char/
1425         nonnull.cc: New.
1426
1427         PR libstdc++/86168
1428         * include/bits/random.h (random_device(const string&)): Remove
1429         default argument.
1430
1431         * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
1432         define for C++17 and above.
1433
1434         LWG 2993 reference_wrapper<T> conversion from T&&
1435         * doc/xml/manual/intro.xml: Document LWG 2993 change.
1436         * include/bits/refwrap.h (reference_wrapper(_Tp&)): Remove.
1437         (reference_wrapper(_Tp&&)): Remove.
1438         (reference_wrapper<_Up>(_Up&&)): Define new constructor as constrained
1439         template.
1440         (reference_wrapper): Add deduction guide.
1441         * testsuite/20_util/reference_wrapper/deduction.cc: New.
1442         * testsuite/20_util/reference_wrapper/lwg2993.cc: New.
1443
1444         LWG 3039 Unnecessary decay in thread and packaged_task
1445         * include/std/future (__constrain_pkgdtask): Replace with ...
1446         (packaged_task::__not_same): New alias template, using
1447         __remove_cvref_t instead of decay.
1448         * include/std/thread (thread::__not_same): Add comment.
1449
1450 2018-06-14  Jonathan Wakely  <jwakely@redhat.com>
1451
1452         LWG 3075 basic_string needs deduction guides from basic_string_view
1453         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
1454         deduction from string views.
1455         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
1456         Likewise.
1457
1458         LWG 3074 make scalar types non-deduced in valarray non-member functions
1459         * include/bits/valarray_after.h (_DEFINE_EXPR_BINARY_FUNCTION): Change
1460         scalar parameters to be a non-deduced context.
1461         * include/std/valarray (_DEFINE_BINARY_OPERATOR): Likewise. Adjust
1462         whitespace.
1463         * testsuite/26_numerics/valarray/operators.cc: Test scalar operands.
1464         * testsuite/26_numerics/valarray/transcend.cc: New.
1465
1466         * include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
1467         Move back to <utility>.
1468         * include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
1469         Restore to here.
1470
1471         P0935R0 Eradicating unnecessarily explicit default constructors
1472         * include/backward/strstream (strstreambuf): Add non-explicit default
1473         constructor.
1474         * include/bits/locale_conv.h (wbuffer_convert, wstring_convert):
1475         Likewise.
1476         * include/bits/regex.h (match_results): Likewise.
1477         * testsuite/22_locale/conversions/buffer/1.cc: Test for non-explicit
1478         default constructor.
1479         * testsuite/22_locale/conversions/string/1.cc: Likewise.
1480         * testsuite/28_regex/match_results/ctors/char/default.cc: Likewise.
1481         * testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
1482
1483         * include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
1484         macro from <utility> and change type to long.
1485         * include/std/utility (__cpp_lib_tuple_element_t): Remove.
1486         * testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
1487         macro.
1488
1489         P0935R0 Eradicating unnecessarily explicit default constructors
1490         * include/bits/random.h (uniform_real_distribution::param_type)
1491         (normal_distribution::param_type, lognormal_distribution::param_type)
1492         (gamma_distribution::param_type, chi_squared_distribution::param_type)
1493         (cauchy_distribution::param_type, fisher_f_distribution::param_type)
1494         (student_t_distribution::param_type)
1495         (bernoulli_distribution::param_type)
1496         (binomial_distribution::param_type)
1497         (geometric_distribution::param_type)
1498         (negative_binomial_distribution::param_type)
1499         (poisson_distribution::param_type)
1500         (exponential_distribution::param_type)
1501         (weibull_distribution::param_type)
1502         (extreme_value_distribution::param_type): Add non-explicit default
1503         constructors. Remove default argument for first parameter of explicit
1504         constructors.
1505         * include/bits/uniform_int_dist.h
1506         (uniform_int_distribution::param_type): Likewise.
1507         * include/ext/random
1508         (beta_distribution::param_type, rice_distribution::param_type)
1509         (nakagami_distribution::param_type, pareto_distribution::param_type)
1510         (k_distribution::param_type, arcsine_distribution::param_type)
1511         (hoyt_distribution::param_type, triangular_distribution::param_type)
1512         (von_mises_distribution::param_type)
1513         (hypergeometric_distribution::param_type)
1514         (logistic_distribution::param_type)
1515         (uniform_inside_sphere_distribution::param_type): Likewise.
1516         (uniform_on_sphere_distribution::param_type): Make default constructor
1517         non-explicit.
1518         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
1519         Test param_type for non-explicit default constructor.
1520         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
1521         Likewise.
1522         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
1523         Likewise.
1524         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
1525         Likewise.
1526         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
1527         Likewise.
1528         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
1529         Likewise.
1530         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
1531         Likewise.
1532         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
1533         Likewise.
1534         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
1535         Likewise.
1536         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
1537         Likewise.
1538         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
1539         Likewise.
1540         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
1541         Likewise.
1542         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
1543         Likewise.
1544         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
1545         Likewise.
1546         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
1547         Likewise.
1548         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
1549         Likewise.
1550         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
1551         Likewise.
1552         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
1553         Likewise.
1554         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
1555         Likewise.
1556         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
1557         Likewise.
1558         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
1559         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
1560         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
1561         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
1562         Likewise.
1563         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
1564         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
1565         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
1566         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
1567         Likewise.
1568         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
1569         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
1570         * testsuite/ext/random/triangular_distribution/cons/default.cc:
1571         Likewise.
1572         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
1573         Likewise.
1574         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
1575         Likewise.
1576         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
1577         Likewise.
1578
1579 2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
1580             Jonathan Wakely  <jwakely@redhat.com>
1581
1582         PR libstdc++/83982
1583         * include/bits/vector.tcc (vector::_M_default_append(size_type)):
1584         Default-construct new elements before moving existing ones.
1585         * testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
1586         New.
1587
1588 2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
1589
1590         PR libstdc++/86127
1591         * include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
1592         unused typedef.
1593         (_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
1594         Use node allocator to create and destroy elements.
1595         (forward_list::_Tp_alloc_type): Remove unused typedef.
1596         (forward_list::_Alloc_traits): Use allocator_traits instead of
1597         __gnu_cxx::__alloc_traits.
1598
1599 2018-06-13  François Dumont  <fdumont@gcc.gnu.org>
1600
1601         * include/debug/helper_functions.h
1602         (__gnu_debug::_Safe_iterator<>): Add declaration.
1603         (__can_advance(_Ite, _Size)): New.
1604         (__can_advance(const _Safe_iterator<>&, _Size)): Overload declaration.
1605         * include/debug/functions.h
1606         (__gnu_debug::_Safe_iterator<>): Remove declaration.
1607         * include/debug/stl_iterator.h
1608         (__can_advance(const _Safe_iterator<>&)): New definition.
1609         * include/debug/stl_iterator.h
1610         (__can_advance(const std::reverse_iterator<>&, _Size)): New.
1611         (__can_advance(const std::move_iterator<>&, _Size)): New.
1612         * include/debug/macros.h (__glibcxx_check_can_increment): New.
1613         * include/debug/debug.h (__glibcxx_requires_can_increment): New.
1614         * include/bits/stl_algobase.h (fill_n): Use latter.
1615         * testsuite/25_algorithms/fill_n/2.cc: New.
1616         * testsuite/25_algorithms/fill_n/debug/1_neg.cc: New.
1617         * testsuite/25_algorithms/fill_n/debug/2_neg.cc: New.
1618         * testsuite/25_algorithms/fill_n/debug/3_neg.cc: New.
1619         * testsuite/25_algorithms/fill_n/debug/4_neg.cc: New.
1620
1621         * include/debug/debug.h (__glibcxx_requires_can_increment_range): New.
1622         (__glibcxx_requires_can_decrement_range): New.
1623
1624 2018-06-12  François Dumont  <fdumont@gcc.gnu.org>
1625
1626         * include/debug/macros.h (__glibcxx_check_can_increment_range): New.
1627         (__glibcxx_check_can_decrement_range): New.
1628         * include/bits/stl_algobase.h (std::copy(_II, _II, _OI)): Use
1629         __glibcxx_requires_can_increment_range.
1630         (std::move(_II, _II, _OI)): Likewise.
1631         (std::copy_backward(_BI, _BI, _BI2)): Use
1632         __glibcxx_requires_can_decrement_range.
1633         (std::move_backward(_BI, _BI, _BI2)): Likewise.
1634         * testsuite/25_algorithms/copy_backward/debug/1_neg.cc: New.
1635         * testsuite/25_algorithms/copy_backward/debug/2_neg.cc: New.
1636         * testsuite/25_algorithms/copy_backward/debug/3_neg.cc: New.
1637         * testsuite/25_algorithms/equal/debug/1_neg.cc: New.
1638         * testsuite/25_algorithms/equal/debug/2_neg.cc: New.
1639         * testsuite/25_algorithms/equal/debug/3_neg.cc: New.
1640
1641 2018-06-12  Jonathan Wakely  <jwakely@redhat.com>
1642
1643         P0935R0 Eradicating unnecessarily explicit default constructors
1644         * include/bits/random.h (linear_congruential_engine)
1645         (mersenne_twister_engine, subtract_with_carry_engine, random_device)
1646         (uniform_real_distribution, normal_distribution)
1647         (lognormal_distribution, gamma_distribution, chi_squared_distribution)
1648         (cauchy_distribution, fisher_f_distribution, student_t_distribution)
1649         (bernoulli_distribution, binomial_distribution,geometric_distribution)
1650         (negative_binomial_distribution, exponential_distribution)
1651         (weibull_distribution, extreme_value_distribution): Add non-explicit
1652         default constructors. Remove default argument for first parameter of
1653         explicit constructors.
1654         (piecewise_constant_distribution, piecewise_linear_distribution):
1655         Make default constructor non-explicit.
1656         * include/bits/uniform_int_dist.h (uniform_int_distribution): Add
1657         non-explicit default constructors. Remove default argument for first
1658         parameter of explicit constructor.
1659         * include/ext/random
1660         (simd_fast_mersenne_twister_engine, beta_distribution)
1661         (rice_distribution, nakagami_distribution, pareto_distribution)
1662         (k_distribution, arcsine_distribution, hoyt_distribution)
1663         (triangular_distribution, von_mises_distribution)
1664         (hypergeometric_distribution, logistic_distribution)
1665         (uniform_inside_sphere_distribution): Likewise.
1666         (uniform_on_sphere_distribution): Make default constructor
1667         non-explicit.
1668         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
1669         Test for non-explicit default constructor. Fix references to standard.
1670         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
1671         Likewise.
1672         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
1673         Likewise.
1674         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
1675         Likewise.
1676         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
1677         Likewise.
1678         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
1679         Likewise.
1680         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
1681         Likewise.
1682         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
1683         Likewise.
1684         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
1685         Likewise.
1686         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
1687         Likewise.
1688         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
1689         Likewise.
1690         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
1691         Likewise.
1692         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
1693         Likewise.
1694         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
1695         Likewise.
1696         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
1697         Likewise.
1698         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
1699         Likewise.
1700         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
1701         Likewise.
1702         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
1703         Likewise.
1704         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
1705         Likewise.
1706         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
1707         Likewise.
1708         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
1709         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
1710         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
1711         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
1712         Likewise.
1713         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
1714         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
1715         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
1716         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
1717         Likewise.
1718         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
1719         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
1720         * testsuite/ext/random/triangular_distribution/cons/default.cc:
1721         Likewise.
1722         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
1723         Likewise.
1724         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
1725         Likewise.
1726         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
1727         Likewise.
1728         * testsuite/util/testsuite_common_types.h
1729         (implicitly_default_constructible): New helper.
1730
1731 2018-06-08  Jonathan Wakely  <jwakely@redhat.com>
1732
1733         * include/bits/ios_base.h (ios::Init::Init(const Init&))
1734         (ios::Init::operator=): Define as defaulted.
1735         * include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
1736         Likewise.
1737         * include/bits/stream_iterator.h (istream_iterator::operator=)
1738         (ostream_iterator::operator=): Likewise.
1739         * include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
1740         Likewise.
1741         * include/std/bitset (bitset::reference::reference(const reference&)):
1742         Likewise.
1743         * include/std/complex (complex<float>::complex(const complex&))
1744         (complex<double>::complex(const complex&))
1745         (complex<long double>::complex(const complex&)): Likewise.
1746
1747 2018-06-07  Jonathan Wakely  <jwakely@redhat.com>
1748
1749         * include/bits/regex.h (sub_match): Add noexcept to default
1750         constructor and length observer.
1751         (match_results): Add noexcept to default constructor and observers
1752         with no preconditions. Define destructor as defaulted.
1753         (operator==, operator!=, swap): Add noexcept.
1754         (regex_iterator): Add default member initializers and define default
1755         constructor and destructor as defaulted. Add noexcept to equality
1756         and dereference operators.
1757
1758 2018-06-07  François Dumont  <fdumont@gcc.gnu.org>
1759
1760         * src/c++11/debug.cc
1761         (_Safe_iterator_base::_M_detach()): Reset state only if needed.
1762         (_Safe_iterator_base::_M_detach_single()): Likewise.
1763         (_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
1764         (_Safe_local_iterator_base::_M_detach_single()): Likewise.
1765
1766 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
1767
1768         * include/bits/shared_ptr_base.h (__shared_count): Remove redundant
1769         move of const value.
1770
1771 2018-06-06  Jakub Jelinek  <jakub@redhat.com>
1772
1773         PR c++/86068
1774         * include/bits/c++config: Check __cpp_transactional_memory >= 201500L
1775         rather than __cpp_transactional_memory >= 201505L.
1776
1777 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
1778
1779         PR libstdc++/86008
1780         * include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
1781         Define new partial specialization.
1782         * include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
1783         new overload.
1784         (operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
1785         value not reference for iteration.
1786         * testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
1787         comment.
1788         * testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
1789         * testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
1790         comment.
1791
1792 2018-06-05  Jonathan Wakely  <jwakely@redhat.com>
1793
1794         * include/std/type_traits: Fix comment typos.
1795
1796         * testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
1797         mingw* targets.
1798         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
1799         * testsuite/experimental/filesystem/operations/read_symlink.cc:
1800         Likewise.
1801
1802 2018-06-05  François Dumont  <fdumont@gcc.gnu.org>
1803
1804         * include/bits/stl_tempbuf.h
1805         (_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
1806         (_Temporary_buffer(_FwdIte, size_type)): ...this, new.
1807         * include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
1808         * include/bits/stl_algo.h (__stable_partition): Adapt.
1809         (__inplace_merge): Adapt.
1810         (__stable_sort): Adapt.
1811
1812 2018-06-04  Jonathan Wakely  <jwakely@redhat.com>
1813
1814         PR libstdc++/85930
1815         * include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
1816         unconditionally. Remove redundant declaration.
1817         [!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
1818         alignment-specifier.
1819
1820         * include/bits/postypes.h (fpos): Define special members as defaulted.
1821
1822         PR libstdc++/85930
1823         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
1824         the static variable correctly.
1825
1826 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
1827
1828         PR libstdc++/78870 support std::filesystem on Windows
1829         * config.h.in: Regenerate.
1830         * configure: Regenerate.
1831         * configure.ac: Check for link, readlink and symlink.
1832         * include/bits/fs_path.h (path::operator/=(const path&)): Move
1833         definition out of class body.
1834         (path::is_absolute(), path::_M_append(path)): Likewise.
1835         (operator<<(basic_ostream, const path&)): Use std::quoted directly.
1836         (operator>>(basic_istream, path&)): Likewise.
1837         (u8path): Reorder definitions and fix Windows implementation.
1838         (path::is_absolute()): Define inline and fix for Windows.
1839         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
1840         Define POSIX version inline.
1841         (path::_M_append(path)): Define inline.
1842         * include/experimental/bits/fs_path.h (path::is_absolute()): Move
1843         definition out of class body.
1844         (operator<<(basic_ostream, const path&)): Fix type of delimiter and
1845         escape characters.
1846         (operator>>(basic_istream, path&)): Likewise.
1847         (path::is_absolute()): Define inline and fix for Windows.
1848         * src/filesystem/dir-common.h (__gnu_posix): New namespace.
1849         (__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
1850         (__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
1851         Define as adaptors for Windows functions/types or as
1852         using-declarations for POSIX functions/types.
1853         (_Dir_base, get_file_type): Qualify names to use declarations from
1854         __gnu_posix namespace.
1855         (_Dir_base::is_dor_or_dotdot): New helper functions.
1856         * src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
1857         names to use declarations from __gnu_posix namespace.
1858         * src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
1859         (__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
1860         (__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
1861         (__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
1862         (__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
1863         (__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
1864         Define as adaptors for Windows functions/types or as
1865         using-declarations for POSIX functions/types.
1866         (stat_type, do_copy_file): Qualify names to use declarations from
1867         __gnu_posix namespace.
1868         (do_space): Declare new function.
1869         (make_file_type): Only use S_ISLNK if defined.
1870         * src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
1871         path::value_type not char.
1872         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
1873         names to use declarations from __gnu_posix namespace.
1874         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
1875         add implementation for Windows.
1876         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
1877         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
1878         [!_PC_PATH_MAX]: Don't use pathconf.
1879         [PATH_MAX]: Use if defined.
1880         (filesystem::current_path(const path&, error_code&))
1881         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
1882         (filesystem::last_write_time, filesystem::permissions): Use names
1883         from __gnu_posix.
1884         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
1885         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
1886         implementation for Windows.
1887         (filesystem::rename, filesystem::resize_file): Use names from
1888         __gnu_posix.
1889         (filesystem::space): Use do_space.
1890         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
1891         (filesystem::status, filesystem::symlink_status): Use names from
1892         __gnu_posix.
1893         (filesystem::temp_directory_path): Add implementation for Windows.
1894         * src/filesystem/path.cc (dot): Define constant.
1895         (path::replace_extension): Use dot.
1896         (path::_M_find_extension): Likewise. Use path::string_type not
1897         std::string.
1898         (path::_M_split_cmpts): Use dot.
1899         (filesystem_error::_M_get_what): Use u8string() not native().
1900         * src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
1901         Qualify names to use declarations from __gnu_posix namespace.
1902         * src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
1903         correct error_code.
1904         (filesystem::absolute(const path&, error_code&)): Add implementation
1905         for Windows.
1906         (char_ptr, filesystem::canonical): Use path::value_type not char.
1907         (do_copy_file): Use names from __gnu_posix.
1908         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
1909         sendfile.
1910         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
1911         names to use declarations from __gnu_posix namespace.
1912         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
1913         add implementation for Windows.
1914         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
1915         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
1916         [!_PC_PATH_MAX]: Don't use pathconf.
1917         [PATH_MAX]: Use if defined.
1918         (filesystem::current_path(const path&, error_code&))
1919         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
1920         (filesystem::last_write_time, filesystem::permissions): Use names
1921         from __gnu_posix.
1922         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
1923         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
1924         implementation for Windows.
1925         (filesystem::rename, filesystem::resize_file): Use names from
1926         __gnu_posix.
1927         (do_space): Define.
1928         (filesystem::space): Use do_space.
1929         (filesystem::status, filesystem::symlink_status): Use names from
1930         __gnu_posix.
1931         (filesystem::temp_directory_path): Add implementation for Windows.
1932         * src/filesystem/std-path.cc
1933         [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
1934         Define for Windows.
1935         (dot): Define constant.
1936         (path::replace_extension, is_dot): Use dot.
1937         (path::lexically_normal): Check _M_type instead of calling
1938         non-existent function.
1939         (path::_M_find_extension): Use dot. Use path::string_type not
1940         std::string.
1941         (path::_M_split_cmpts): Use dot.
1942         (filesystem_error::_M_get_what): Use u8string() not native().
1943         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
1944         use symlinks.
1945         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
1946         Likewise.
1947         * testsuite/27_io/filesystem/operations/absolute.cc: Use
1948         __gnu_test::root_path() instead of "/" and add Windows-specific tests.
1949         * testsuite/27_io/filesystem/operations/canonical.cc: Use
1950         path::string() to get narrow string, not path::native().
1951         * testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
1952         with std::filesystem::path not std::basic_string.
1953         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
1954         * testsuite/27_io/filesystem/operations/exists.cc: Use
1955         __gnu_test::root_path() instead of "/".
1956         * testsuite/27_io/filesystem/operations/is_empty.cc: Construct
1957         fstreams with std::filesystem::path not std::basic_string.
1958         * testsuite/27_io/filesystem/operations/last_write_time.cc: Use
1959         path::string() to get narrow string.
1960         * testsuite/27_io/filesystem/operations/space.cc: Check results for
1961         errors, expect sensible values otherwise.
1962         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
1963         helpers for adjusting the environment on Windows.
1964         * testsuite/27_io/filesystem/path/append/path.cc: Test
1965         Windows-specific behaviour.
1966         * testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
1967         of path::string_type objects.
1968         * testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
1969         string to wide string on Windows.
1970         * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
1971         for backslash as root-directory.
1972         * testsuite/27_io/filesystem/path/decompose/stem.cc: Use
1973         path::string() to get narrow string.
1974         * testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
1975         paths.
1976         * testsuite/27_io/filesystem/path/native/string.cc: Use string_type
1977         not std::string.
1978         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
1979         different definintion of absolute paths on Windows.
1980         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
1981         Do not use symlinks.
1982         * testsuite/experimental/filesystem/operations/absolute.cc: Test
1983         Windows behaviour.
1984         * testsuite/experimental/filesystem/operations/copy.cc: Construct
1985         fstreams with NTCTS not std::basic_string.
1986         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
1987         * testsuite/experimental/filesystem/operations/exists.cc: Use
1988         __gnu_test::root_path() instead of "/".
1989         * testsuite/experimental/filesystem/operations/is_empty.cc: Construct
1990         fstreams with NTCTS not std::basic_string.
1991         * testsuite/experimental/filesystem/operations/last_write_time.cc:
1992         Use path::string() to get narrow string.
1993         * testsuite/experimental/filesystem/operations/space.cc: Use
1994         __gnu_test::root_path() instead of "/".
1995         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
1996         Add helpers for adjusting the environment on Windows.
1997         * testsuite/experimental/filesystem/path/append/path.cc: Use
1998         path::string() to get narrow strings for comparisons.
1999         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
2000         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
2001         Likewise.
2002         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
2003         * testsuite/experimental/filesystem/path/native/string.cc: Use
2004         string_type not std::string.
2005         * testsuite/experimental/filesystem/path/query/is_absolute.cc:
2006         Adjust for different definintion of absolute paths on Windows.
2007         * testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
2008         function.
2009         (__gnu_test::scoped_file): Construct fstreams with NTCTS not
2010         std::basic_string.
2011
2012 2018-05-31  Jonathan Wakely  <jwakely@redhat.com>
2013
2014         PR libstdc++/85951
2015         * include/std/type_traits [_GLIBCXX_USE_C99_STDINT_TR1]: Do not define
2016         uint_least16_t and uint_least32_t.
2017         (__make_unsigned<wchar_t>): Define unconditionally.
2018         (__make_unsigned_selector<_Tp, true, false>): Remove intermediate
2019         typedefs.
2020         (__make_unsigned_selector_base): New type to provide helper templates.
2021         (__make_unsigned_selector<_Tp, false, true>): Reimplement using
2022         __make_unsigned_selector_base helpers.
2023         (__make_unsigned<char16_t>, __make_unsigned<char32_t>): Define.
2024         (__make_signed_selector<_Tp, true, false>): Remove intermediate
2025         typedefs.
2026         (__make_signed<wchar_t>, __make_signed<char16_t>)
2027         (__make_signed<char32_t>)): Define unconditionally.
2028         * testsuite/20_util/make_signed/requirements/typedefs-3.cc: Check
2029         wchar_t, char16_t and char32_t are transformed correctly.
2030         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
2031         dg-error lineno.
2032         * testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: Check
2033         wchar_t, char16_t and char32_t are transformed correctly.
2034         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
2035         dg-error lineno.
2036
2037 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
2038
2039         * include/std/variant (__erased_dtor): Qualify call to __get.
2040
2041 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
2042
2043         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
2044         (_Rb_tree(const allocator_type&)): Use latter.
2045         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
2046         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
2047         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
2048         * include/bits/stl_multimap.h
2049         (multimap(const allocator_type&)): Likewise.
2050         (multimap(initializer_list<value_type>, const allocator_type&)):
2051         Likewise.
2052         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
2053         Likewise.
2054         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
2055         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
2056         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
2057         * include/bits/stl_multiset.h
2058         (multiset(const allocator_type&)): Likewise.
2059         (multiset(initializer_list<value_type>, const allocator_type&)):
2060         Likewise.
2061         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
2062         Likewise.
2063
2064 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
2065
2066         PR libstdc++/85768
2067         * src/c++11/debug.cc: Remove backtrace usage.
2068
2069 2018-05-24  Maya Rashish  <coypu@sdf.org>
2070
2071         PR target/85904
2072         * crossconfig.m4: Test for aligned_alloc on netbsd.
2073         * configure: Regenerate.
2074
2075 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
2076
2077         PR libstdc++/69769
2078         PR libstdc++/85886
2079         * include/bits/atomic_base.h (__atomic_base::value_type)
2080         (__atomic_base::difference_type): Add new typedefs.
2081         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
2082         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
2083         (atomic<T*>::operator++, atomic<T*>::operator--)
2084         (atomic<T*>::operator+=, atomic<T*>::operator-=)
2085         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
2086         to enforce C++17 requirement on pointer arithmetic.
2087         (__atomic_val_t, __atomic_diff_t): New alias templates.
2088         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
2089         (atomic_compare_exchange_weak_explicit)
2090         (atomic_compare_exchange_strong_explicit, atomic_store)
2091         (atomic_exchange, atomic_compare_exchange_weak)
2092         (atomic_compare_exchange_strong): Use __atomic_val_t to make
2093         scalar parameters be non-deduced contexts.
2094         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
2095         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
2096         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
2097         parameters.
2098         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
2099         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
2100         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
2101         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
2102         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
2103         address types.
2104         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
2105         * testsuite/29_atomics/atomic/69769.cc: New test.
2106         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
2107         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
2108         Disable test for C++17 and later.
2109         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
2110         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
2111         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
2112         test.
2113
2114 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
2115
2116         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
2117         template to alias template.
2118         (path::__value_type_is_char): Use remove_const_t.
2119         (path:_S_string_from_iter): New helper function.
2120         (path::_S_convert(InputIter, __null_terminated))
2121         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
2122         Use _S_string_from_iter.
2123         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
2124         rep for COW strings.
2125         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
2126         Change from class template to alias template.
2127         (path::__value_type_is_char): Use remove_const.
2128         (path:_S_string_from_iter): New helper function.
2129         (path::_S_convert(InputIter, __null_terminated))
2130         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
2131         Use _S_string_from_iter.
2132         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
2133         wide strings.
2134         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
2135         string equality, not path equivalence.
2136         * testsuite/27_io/filesystem/path/construct/format.cc: Check
2137         construction from std::string and std::wstring and input iterators.
2138         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
2139         construction from iterators.
2140         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
2141         exact string equality, not path equivalence.
2142         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
2143         construction from iterators.
2144
2145         * include/bits/fs_path.h (path::_M_type): Change default member
2146         initializer to _Filename.
2147         (path::begin): Create past-the-end iterator for empty path.
2148         * src/filesystem/std-path.cc (path::remove_filename()): Remove
2149         debugging check.
2150         (path::has_relative_path()): Return false for empty filenames.
2151         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
2152         Fix offset of empty final component.
2153         * testsuite/27_io/filesystem/path/itr/components.cc: New.
2154         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
2155
2156 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
2157
2158         Add support for opening file streams from wide character strings.
2159         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
2160         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
2161         Define new overload.
2162         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
2163         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
2164         Declare new overload.
2165         * configure.ac: Check for _wfopen.
2166         * crossconfig.m4: Likewise.
2167         * configure: Regenerate.
2168         * config.h.in: Regenerate.
2169         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
2170         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
2171         Define new overload.
2172         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
2173         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
2174         Declare new overload.
2175         [_GLIBCXX_HAVE__WFOPEN]
2176         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
2177         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
2178         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
2179         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
2180         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
2181         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
2182         new overloads.
2183         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
2184         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
2185         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
2186         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
2187         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
2188         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
2189         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
2190
2191 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
2192
2193         PR libstdc++/85845
2194         * include/bits/stl_tree.h
2195         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
2196         qualification.
2197
2198 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
2199
2200         * src/filesystem/std-ops.cc (absolute): Report an error for empty
2201         paths.
2202         (weakly_canonical(const path&)): Do not call canonical on empty path.
2203         (weakly_canonical(const path&, error_code&)): Likewise.
2204         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
2205
2206         PR libstdc++/85818
2207         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
2208         dg-require-filesystem-ts.
2209
2210         PR libstdc++/85843
2211         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
2212         initialize base class to avoid warnings.
2213
2214 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
2215
2216         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
2217         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
2218         little_endian element in bitmask.
2219         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
2220         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
2221
2222 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
2223
2224         * include/bits/stl_tree.h
2225         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
2226         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
2227         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
2228         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
2229         * include/debug/map.h
2230         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
2231         * include/debug/multimap.h
2232         (multimap(multimap&&, const_allocator_type&)): Likewise.
2233         * include/debug/set.h
2234         (set(set&&, const_allocator_type&)): Likewise.
2235         * include/debug/multiset.h
2236         (multiset(multiset&&, const_allocator_type&)): Likewise.
2237         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
2238         Add checks.
2239         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
2240         Add checks.
2241         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
2242         Add checks.
2243         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
2244         Add checks.
2245         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
2246         Add checks.
2247         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
2248         Add checks.
2249         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
2250         Add checks.
2251         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
2252         Add checks.
2253
2254 2018-05-18  Jason Merrill  <jason@redhat.com>
2255
2256         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
2257         for conversion to const_iterator.  Add defaulted copy ops.
2258         * libsupc++/new (bad_alloc): Add defaulted copy ops.
2259         * libsupc++/exception.h (exception): Add defaulted copy ops.
2260         * include/std/system_error (system_error): Add defaulted copy ops.
2261         * include/std/stdexcept (domain_error, invalid_argument)
2262         (length_error, out_of_range, range_error, overflow_error)
2263         (underflow_error): Add defaulted copy ops.
2264         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
2265         copy assignment.
2266         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
2267         * include/ext/throw_allocator.h (condition_base): Add defaulted
2268         default and copy ctor and copy assignment.
2269
2270 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
2271
2272         PR libstdc++/85098
2273         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
2274         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
2275         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
2276         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
2277         definitions.
2278         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
2279         whitespace.
2280         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
2281         braces around body of do-while.
2282         * testsuite/28_regex/basic_regex/85098.cc: New
2283
2284 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
2285
2286         PR libstdc++/85818
2287         * src/filesystem/path.cc (path::preferred_separator): Add used
2288         attribute.
2289         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
2290
2291         PR libstdc++/85812
2292         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
2293         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
2294         Refactor to separate non-throwing and throwing implementations.
2295         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
2296         if constructing the object throws.
2297
2298 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
2299
2300         PR libstdc++/85749
2301         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
2302         (linear_congruential_engine, mersenne_twister_engine)
2303         (subtract_with_carry_engine, discard_block_engine)
2304         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
2305         constrain function templates taking seed sequences.
2306         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
2307         (mersenne_twister_engine::seed(_Sseq&))
2308         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
2309         match declarations.
2310         * include/ext/random (simd_fast_mersenne_twister_engine): Use
2311         __is_seed_seq to constrain function templates taking seed sequences.
2312         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
2313         Change return type to match declaration.
2314         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
2315         New.
2316         * testsuite/26_numerics/random/independent_bits_engine/cons/
2317         seed_seq2.cc: New.
2318         * testsuite/26_numerics/random/linear_congruential_engine/cons/
2319         seed_seq2.cc: New.
2320         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
2321         seed_seq2.cc: New.
2322         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2323         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
2324         New.
2325         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
2326         seed_seq2.cc: New.
2327         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
2328         seed_seq2.cc: New.
2329
2330         PR libstdc++/83891
2331         * include/bits/fs_path.h (path::is_absolute()): Use same definition
2332         for all operating systems.
2333         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
2334         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
2335         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
2336         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
2337
2338         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
2339         unused <vector> header.
2340         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
2341         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
2342         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
2343         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
2344         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
2345         Likewise.
2346         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
2347         Likewise.
2348         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
2349         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
2350         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
2351         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
2352         * testsuite/experimental/filesystem/path/decompose/extension.cc:
2353         Likewise.
2354         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
2355         * testsuite/experimental/filesystem/path/query/has_extension.cc:
2356         Likewise.
2357         * testsuite/experimental/filesystem/path/query/has_filename.cc:
2358         Likewise.
2359         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
2360         Likewise.
2361         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
2362         Likewise.
2363         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
2364         Likewise.
2365         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
2366         Likewise.
2367         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
2368         Likewise.
2369         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
2370         * testsuite/experimental/filesystem/path/query/is_relative.cc:
2371         Likewise.
2372
2373         PR libstdc++/84159
2374         * include/bits/fs_path.h (path::operator/=, path::append): Construct
2375         temporary path before calling _M_append.
2376         (path::_M_append): Change parameter to path and implement C++17
2377         semantics.
2378         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
2379         and more examples from the standard.
2380         * testsuite/27_io/filesystem/path/append/source.cc: New.
2381         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
2382         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
2383
2384         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
2385         __invoke to prevent ADL.
2386
2387 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
2388
2389         PR libstdc++/81256
2390         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
2391         exceptions from _M_terminate_output().
2392         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
2393         exceptions from close().
2394         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
2395
2396         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
2397         (__valarray_get_storage): Call operator new directly. Remove ignored
2398         top-level restrict qualifier and add malloc attribute instead.
2399         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
2400
2401         PR libstdc++/67554
2402         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
2403         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
2404
2405         PR libstdc++/82966
2406         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
2407         instead of type.
2408         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
2409
2410 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
2411
2412         PR libstdc++/80165
2413         * testsuite/20_util/variant/80165.cc: New.
2414
2415 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
2416
2417         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
2418         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
2419         of C++11 containers with Debug Mode support.
2420         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
2421         * doc/html/*: Regenerate.
2422
2423 2018-05-10  Jason Merrill  <jason@redhat.com>
2424
2425         * include/bits/regex_compiler.h (_S_cache_size): Change from
2426         function to variable.
2427
2428 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
2429
2430         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
2431         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
2432         argument defaulted to +1.  Doxy comments on same.
2433         * testsuite/special_functions/02_assoc_legendre/
2434         check_value.cc: Regen.
2435         * testsuite/tr1/5_numerical_facilities/special_functions/
2436         02_assoc_legendre/check_value.cc: Regen.
2437
2438 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
2439
2440         PR libstdc++/85729
2441         * include/bits/c++config.h (__replacement_assert): Add linkage
2442         specification.
2443         * include/bits/std_abs.h: Add comment to closing brace of block.
2444         * include/c_global/cstddef: Add linkage specification.
2445         * include/c_global/cstring: Likewise.
2446         * include/c_global/cwchar: Likewise.
2447
2448 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
2449
2450         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
2451         Rename in...
2452         (_Safe_iterator<>::_S_constant()): ...that.
2453         * include/debug/safe_local_iterator.h
2454         (_Safe_local_iterator<>::_M_constant()): Rename in...
2455         (_Safe_local_iterator<>::_S_constant()): ...that.
2456         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
2457         (_Iterator_state::__rbegin): New.
2458         (_Iterator_state::__rmiddle): New.
2459         (_Iterator_state::__rend): New.
2460         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
2461         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
2462         iterator type.
2463         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
2464         _Is_iterator)): Likewise.
2465         (_Parameter::_S_reverse_state(_Iterator_state)): New.
2466         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
2467         _Is_iterator)): New.
2468         (_Parameter(std::reverse_iterator<> const&, const char*,
2469         _Is_iterator)): New.
2470         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
2471         const char*, _Is_iterator)): New.
2472         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
2473         New.
2474         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
2475         _Is_iterator)): New.
2476         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
2477         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
2478         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
2479
2480 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
2481
2482         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
2483         Use constexpr if in C++17 mode.
2484         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
2485         Copy from const object.
2486         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
2487
2488 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
2489
2490         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
2491         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
2492         backtrace.
2493
2494         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
2495         * include/debug/functions.h (__check_valid_range): Use latter.
2496         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
2497         use latter.
2498         * include/debug/deque
2499         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
2500         * include/debug/forward_list
2501         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
2502         Likewise.
2503         * include/debug/list
2504         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2505         * include/debug/list
2506         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2507         * include/debug/map.h
2508         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2509         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
2510         Likewise.
2511         * include/debug/multimap.h
2512         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2513         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
2514         const _Alloc&)): Likewise.
2515         * include/debug/set.h
2516         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2517         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
2518         Likewise.
2519         * include/debug/multiset.h
2520         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
2521         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
2522         const _Alloc&)): Likewise.
2523         * include/debug/string
2524         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
2525         Likewise.
2526         * include/debug/unordered_map
2527         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
2528         Likewise.
2529         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
2530         const _Alloc&)): Likewise.
2531         * include/debug/unordered_set
2532         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
2533         Likewise.
2534         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
2535         const _Alloc&)): Likewise.
2536         * include/debug/vector
2537         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
2538
2539         * include/debug/formatter.h (_Error_formatter::_M_function): New.
2540         (_Error_formatter(const char*, unsigned int)): Adapt.
2541         (_Error_formatter::_M_at): Rename in...
2542         (_Error_formatter::_S_at): ...that and adapt.
2543         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
2544         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
2545         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
2546         when available.
2547
2548 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
2549
2550         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
2551         Use normal std::vector even in Debug Mode.
2552
2553         PR libstdc++/85672
2554         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
2555         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
2556         * include/Makefile.in: Regenerate.
2557         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
2558         within conditional block.
2559
2560 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
2561
2562         * doc/xml/manual/using.xml (table.cmd_options): Document that the
2563         C++17 Filesystem implementation also needs -lstdc++fs.
2564
2565         PR libstdc++/85671
2566         * include/bits/fs_path.h (operator/): Permit copy elision.
2567         * include/experimental/bits/fs_path.h (operator/): Likewise.
2568
2569 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
2570
2571         Moar PR libstdc++/80506
2572         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
2573         Fix magic number used in loop condition.
2574
2575 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
2576
2577         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
2578         * include/std/optional (_Optional_payload): Add noexcept to default
2579         constructor. Re-indent.
2580         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
2581         constructor for copying disengaged payloads.
2582         (_Optional_payload<_Tp, true, false, true>): Likewise.
2583         (_Optional_payload<_Tp, true, true, false>): Likewise.
2584         (_Optional_payload<_Tp, true, false, false>): Likewise.
2585         * testsuite/20_util/optional/cons/85642.cc: New.
2586         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
2587
2588 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
2589
2590         PR libstdc++/82644
2591         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
2592         inline definitions instead of using-declarations.
2593         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
2594         * testsuite/tr1/5_numerical_facilities/special_functions/
2595         07_conf_hyperg/compile_cxx17.cc: New.
2596         * testsuite/tr1/5_numerical_facilities/special_functions/
2597         17_hyperg/compile_cxx17.cc: New.
2598
2599         PR libstdc++/84769
2600         * include/std/variant (visit): Qualify std::get call.
2601
2602         PR libstdc++/85632 use uintmax_t for arithmetic
2603         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
2604         arithmetic in result type.
2605         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
2606         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
2607         is greater than free space.
2608         * testsuite/experimental/filesystem/operations/space.cc: New.
2609
2610         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
2611         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
2612         New.
2613         * testsuite/20_util/remove_cvref/value.cc: New.
2614         * testsuite/20_util/remove_cvref/value_ext.cc: New.
2615
2616         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
2617         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
2618         (append(const basic_string&, size_type, size_type)
2619         (assign(const basic_string&, size_type, size_type)
2620         (insert(size_type, const basic_string&, size_type, size_type)
2621         (replace(size_type,size_type,const basic_string&,size_type,size_type)
2622         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
2623         Add default arguments (LWG 2268).
2624         [_GLIBCXX_USE_CXX11_ABI=0]
2625         (append(const basic_string&, size_type, size_type)
2626         (assign(const basic_string&, size_type, size_type)
2627         (insert(size_type, const basic_string&, size_type, size_type)
2628         (replace(size_type,size_type,const basic_string&,size_type,size_type)
2629         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
2630         Likewise.
2631         * testsuite/21_strings/basic_string/dr2268.cc: New test.
2632
2633         PR libstdc++/84535
2634         * include/std/thread (thread::__not_same): New SFINAE helper.
2635         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
2636         first argument is not a std::thread. Add static assertion to check
2637         INVOKE expression is valid.
2638         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
2639         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
2640         __invoke_result for return types and remove exception specifications.
2641         * testsuite/30_threads/thread/cons/84535.cc: New.
2642
2643         * include/std/future (__async_result_of): Use __invoke_result instead
2644         of result_of.
2645
2646         * include/std/any (any_cast): Use __remove_cvref_t.
2647         * include/std/tuple (__make_tuple): Likewise.
2648         * include/std/type_traits (__remove_cvref_t): Define.
2649         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
2650         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
2651         * include/std/variant (__erased_hash): Use __remove_cvref_t.
2652
2653 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
2654
2655         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
2656         ensure overloaded comma not used.
2657         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
2658         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
2659         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
2660         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
2661         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
2662         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
2663         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
2664
2665 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
2666
2667         PR libstdc++/68197
2668         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
2669         indices to unsigned.
2670         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
2671         as failure. Refactor error handling.
2672         * testsuite/27_io/ios_base/storage/68197.cc: New.
2673
2674         PR libstdc++/57997
2675         PR libstdc++/83860
2676         * include/bits/gslice_array.h (gslice_array): Define default
2677         constructor as deleted, as per C++11 standard.
2678         * include/bits/mask_array.h (mask_array): Likewise.
2679         * include/bits/slice_array.h (slice_array): Likewise.
2680         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
2681         to namespace __detail.
2682         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
2683         members.
2684         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
2685         of data members in closure objects.
2686         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
2687         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
2688         __detail.
2689         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
2690         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
2691         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
2692         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
2693         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
2694         using-declarations to namespace std.
2695         * testsuite/26_numerics/valarray/83860.cc: New.
2696
2697         * testsuite/backward/strstream_move.cc: Remove duplicate function
2698         call.
2699
2700         PR libstdc++/69608
2701         * include/backward/strstream (strstreambuf): Define move constructor
2702         and move assignment operator.
2703         (istrstream, ostrstream, strstream): Likewise.
2704         * testsuite/backward/strstream_move.cc: New.
2705
2706 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
2707
2708         PR libstdc++/84654
2709         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
2710         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
2711         * configure: Regenerate.
2712         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
2713         based on ENABLE_FLOAT128.
2714         * include/Makefile.in: Regenerate.
2715         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
2716         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
2717         _GLIBCXX_USE_FLOAT128.
2718
2719 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
2720
2721         * configure: Regenerated.
2722
2723 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
2724
2725         * configure: Regenerated.
2726
2727 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
2728             Jakub Jelinek  <jakub@redhat.com>
2729
2730         PR libstdc++/85442
2731         * src/c++11/Makefile.am: Don't generate debuginfo again for
2732         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
2733         * src/c++11/Makefile.in: Regenerate.
2734
2735 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
2736
2737         PR libstdc++/84442
2738         * testsuite/30_threads/thread/cons/terminate.cc
2739         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
2740
2741 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
2742
2743         PR jit/85384
2744         * configure: Regenerate.
2745
2746 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
2747
2748         * testsuite/experimental/filesystem/file_status/1.cc: Add
2749         -DUSE_FILESYSTEM_TS to dg-options.
2750         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
2751         Likewise.
2752         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
2753         * testsuite/experimental/filesystem/iterators/
2754         recursive_directory_iterator.cc: Likewise.
2755         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
2756         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
2757         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
2758         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
2759         * testsuite/experimental/filesystem/operations/create_directories.cc:
2760         Likewise.
2761         * testsuite/experimental/filesystem/operations/create_directory.cc:
2762         Likewise.
2763         * testsuite/experimental/filesystem/operations/create_symlink.cc:
2764         Likewise.
2765         * testsuite/experimental/filesystem/operations/current_path.cc:
2766         Likewise.
2767         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
2768         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
2769         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
2770         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
2771         * testsuite/experimental/filesystem/operations/last_write_time.cc:
2772         Likewise.
2773         * testsuite/experimental/filesystem/operations/permissions.cc:
2774         Likewise.
2775         * testsuite/experimental/filesystem/operations/read_symlink.cc:
2776         Likewise.
2777         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
2778         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2779         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
2780         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
2781         Likewise.
2782         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
2783         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
2784         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
2785         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
2786         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
2787         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
2788         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
2789         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
2790         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
2791         * testsuite/experimental/filesystem/path/construct/default.cc:
2792         Likewise.
2793         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
2794         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
2795         * testsuite/experimental/filesystem/path/construct/string_view.cc:
2796         Likewise.
2797         * testsuite/experimental/filesystem/path/decompose/extension.cc:
2798         Likewise.
2799         * testsuite/experimental/filesystem/path/decompose/filename.cc:
2800         Likewise.
2801         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
2802         Likewise.
2803         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
2804         Likewise.
2805         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
2806         Likewise.
2807         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
2808         Likewise.
2809         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
2810         Likewise.
2811         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
2812         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
2813         Likewise.
2814         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
2815         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
2816         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
2817         Likewise.
2818         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
2819         Likewise.
2820         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
2821         Likewise.
2822         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
2823         Likewise.
2824         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
2825         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
2826         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
2827         Likewise.
2828         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
2829         * testsuite/experimental/filesystem/path/query/has_extension.cc:
2830         Likewise.
2831         * testsuite/experimental/filesystem/path/query/has_filename.cc:
2832         Likewise.
2833         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
2834         Likewise.
2835         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
2836         Likewise.
2837         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
2838         Likewise.
2839         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
2840         Likewise.
2841         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
2842         Likewise.
2843         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
2844         * testsuite/experimental/filesystem/path/query/is_relative.cc:
2845         Likewise.
2846
2847 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
2848
2849         * src/c++11/Makefile.am: Fix sed command.
2850         * src/c++11/Makefile.in: Regenerate.
2851
2852         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
2853         handle mangled names starting with double underscores on darwin.
2854         * src/c++11/Makefile.in: Regenerate.
2855
2856 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
2857
2858         * src/c++11/Makefile.am: Fix comment.
2859         * src/c++11/Makefile.in: Regenerate.
2860         * src/c++11/cxx11-ios_failure.cc: Fix comment.
2861         * src/c++98/ios_failure.cc: Likewise.
2862
2863         * src/c++11/ios.cc: Remove redundant macro definition.
2864
2865 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
2866
2867         * doc/xml/manual/abi.xml: Document header locations in recent
2868         releases.
2869         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
2870         * doc/xml/manual/spine.xml: Update copyright years.
2871         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
2872         undefined behaviour.
2873         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
2874         * doc/html/*: Regenerate.
2875
2876 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
2877
2878         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
2879         * doc/xml/manual/backwards_compatibility.xml: Likewise.
2880         * doc/xml/manual/containers.xml: Likewise.
2881         * doc/xml/manual/debug_mode.xml: Likewise.
2882         * doc/xml/manual/extensions.xml: Likewise.
2883         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
2884         * doc/xml/manual/using.xml: Likewise.
2885         * doc/xml/manual/utilities.xml: Likewise.
2886
2887         PR libstdc++/85222
2888         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
2889         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
2890         * src/c++11/Makefile.in: Regenerate.
2891         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
2892         New types.
2893         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
2894         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
2895         * src/c++98/ios_failure.cc (__construct_ios_failure)
2896         (__destroy_ios_failure, is_ios_failure_handler): New functions.
2897         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
2898         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
2899         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
2900         handler types, to always catch std::ios_base::failure.
2901         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
2902         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
2903         exceptions_failbit.cc: Likewise.
2904         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
2905         exceptions_failbit.cc: Likewise.
2906         * testsuite/27_io/basic_istream/extractors_other/char/
2907         exceptions_null.cc: Likewise.
2908         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
2909         exceptions_null.cc: Likewise.
2910         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
2911         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
2912         * testsuite/27_io/basic_ostream/inserters_other/char/
2913         exceptions_null.cc: Likewise.
2914         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
2915         exceptions_null.cc: Likewise.
2916         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
2917
2918 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
2919
2920         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
2921         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
2922
2923 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
2924
2925         PR libstdc++/85183
2926         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
2927         value categories.
2928         * testsuite/20_util/variant/85183.cc: New.
2929
2930 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
2931
2932         * include/std/variant (__get): Qualify calls to avoid ADL.
2933         (__select_index): Adjust whitespace.
2934         (variant): Add using-declaration to workaround Clang bug.
2935
2936 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
2937
2938         PR libstdc++/85040
2939         * include/bits/stl_function.h (greater::__not_overloaded)
2940         (less::__not_overloaded, greater_equal::__not_overloaded)
2941         (less_equal::__not_overloaded): Fix ambiguous specializations.
2942         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
2943         tests for type with overloaded operators.
2944
2945 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2946
2947         PR libstdc++/77691
2948         * testsuite/experimental/memory_resource/resource_adaptor.cc:
2949         xfail execution on 32-bit Solaris/x86.
2950
2951 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
2952
2953         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
2954         VERIFY instead of assert.
2955         * testsuite/20_util/hash/84998.cc: New test.
2956         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
2957         copy of test adjusted for Debug Mode.
2958         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
2959         test in Debug Mode.
2960
2961 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
2962
2963         PR libstdc++/84998
2964         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
2965         * include/std/bitset: Likewise.
2966         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
2967         declaration.
2968         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
2969         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
2970         * include/bits/stl_set.h (std::set<>): Likewise.
2971         * include/bits/unordered_map.h (std::unordered_map<>): Fix
2972         _Hash_merge_helper friend declaration.
2973         (std::unordered_multimap<>): Likewise.
2974         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
2975         (std::unordered_multiset<>): Likewise.
2976
2977 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
2978
2979         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
2980         trailing slash for domain level link.
2981         * doc/xml/faq.xml: Ditto.
2982         * doc/xml/manual/appendix_free.xml (software): Ditto.
2983         * doc/xml/manual/intro.xml: Ditto.
2984         * doc/xml/manual/spine.xml: Ditto.
2985         * doc/xml/spine.xml: Ditto.
2986
2987 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
2988
2989         * doc/xml/manual/documentation_hacking.xml: Adjust link to
2990         docbook.org.
2991
2992 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
2993
2994         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
2995         to compile as C++98.
2996
2997 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
2998
2999         PR libstdc++/78420
3000         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
3001         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
3002         to ensure total order for pointers.
3003         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
3004         Add operator() overloads for pointer arguments and make generic
3005         overloads dispatch to new _S_cmp functions when comparisons would
3006         use built-in operators for pointers.
3007         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
3008
3009 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
3010
3011         PR libstdc++/84773
3012         PR libstdc++/83662
3013         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
3014         * configure: Regenerate.
3015         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
3016         (aligned_alloc): Add using-declaration.
3017         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
3018
3019 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
3020
3021         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
3022         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
3023         registration.
3024
3025 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
3026
3027         PR libstdc++/84769
3028         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
3029         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
3030
3031         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
3032         src/filesystem/std-ops.cc (create_dir): Likewise.
3033
3034 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
3035
3036         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
3037         (StdListIteratorPrinter): Inherit from latter.
3038         (StdFwdListIteratorPrinter): New, inherit from latter.
3039         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
3040         when iterator has no associated container.
3041         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
3042         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
3043         registrations.
3044         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
3045         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
3046
3047 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
3048
3049         PR libstdc++/84601
3050         * include/std/optional (_Optional_payload): Split into multiple
3051         specializations that can handle different cases of trivial or
3052         non-trivial assignment operators.
3053         * testsuite/20_util/optional/84601.cc: New.
3054         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
3055
3056 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
3057
3058         PR libstdc++/84671
3059         * include/bits/parse_numbers.h (_Number_help): Add partial
3060         specialization to handle digit separators. Adjust partial
3061         specialization for recursion temrination to require _Pow == 1ULL.
3062         * testsuite/20_util/duration/literals/84671.cc: New
3063
3064 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
3065
3066         Implement the missing bits of LWG 2769
3067         * include/std/any (any_cast(const any&)): Add static_assert.
3068         (any_cast(any&)): Likewise.
3069         (any_cast(any&&)): Likewise, and remove the handling
3070         for copyable-but-not-movable type.
3071         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
3072         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
3073         add new tests.
3074
3075 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
3076
3077         PR libstdc++/84532
3078         * include/std/thread (thread::__make_invoker): Construct tuple
3079         directly instead of using make_tuple.
3080         * testsuite/30_threads/async/84532.cc: New.
3081         * testsuite/30_threads/thread/84532.cc: New.
3082
3083 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
3084
3085         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
3086         (template<> __aligned_buffer): Define as __aligned_membuf alias.
3087
3088 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
3089
3090         PR target/84148
3091         * configure: Regenerate.
3092
3093 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
3094
3095         PR libstdc++/81797
3096         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
3097         * configure: Regenerate.
3098         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
3099         defined.
3100         * include/Makefile.in: Regenerate.
3101
3102 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
3103
3104         PR libstdc++/83833
3105         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
3106         Add -ffloat-store to options for m68k and ia32.
3107
3108         * doc/xml/faq.xml: Update copyright years.
3109         * doc/html/*: Regenerate.
3110
3111         PR libstdc++/83658
3112         * include/std/any (any::__do_emplace): Only set _M_manager after
3113         constructing the contained object.
3114         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
3115         * testsuite/20_util/any/modifiers/83658.cc: New test.
3116
3117 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
3118
3119         PR libstdc++/81076
3120         * include/c_global/cstddef (__byte_operand): Define primary template.
3121         * testsuite/18_support/byte/81076.cc: New test.
3122
3123 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
3124
3125         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
3126         dg-options and dg-add-options order.
3127         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
3128         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
3129         Likewise.
3130         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
3131         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
3132         Likewise.
3133         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
3134         Likewise.
3135         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
3136         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
3137         Likewise.
3138         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
3139         Likewise.
3140         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
3141         Likewise.
3142         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
3143         Likewise.
3144         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
3145         Likewise.
3146         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
3147         Likewise.
3148         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
3149         Likewise.
3150         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
3151         Likewise.
3152         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
3153         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
3154         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
3155         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
3156         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
3157         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
3158         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
3159         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
3160         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
3161         Likewise.
3162         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
3163         Likewise.
3164         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
3165         Likewise.
3166         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
3167         Likewise.
3168
3169 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
3170
3171         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
3172         include linux/types.h when checking linux/random.h header.
3173         * config.h.in: Regenerate.
3174         * configure: Ditto.
3175         * src/c++11/random.cc: Conditionally include linux/types.h.
3176
3177 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3178
3179         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
3180
3181 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
3182
3183         PR libstdc++/83834
3184         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
3185         pattern with exact match for std::cerr.
3186
3187 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
3188
3189         PR libstdc++/83833
3190         * include/bits/random.h (chi_squared_distribution::param): Update
3191         gamma distribution parameter.
3192         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
3193         test.
3194
3195         PR libstdc++/83830
3196         * include/std/type_traits (has_unique_object_representations_v): Add
3197         variable template.
3198         * testsuite/20_util/has_unique_object_representations/value.cc: Check
3199         variable template.
3200
3201 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
3202
3203         Make optional conditionally
3204         trivially_{copy,move}_{constructible,assignable}
3205         * include/std/optional (_Optional_payload): Fix the comment in
3206         the class head and turn into a primary and one specialization.
3207         (_Optional_payload::_M_engaged): Strike the NSDMI.
3208         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
3209         New.
3210         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
3211         Likewise.
3212         (_Optional_payload<_Tp, false>::_M_get): Likewise.
3213         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
3214         (_Optional_base_impl): Likewise.
3215         (_Optional_base): Turn into a primary and three specializations.
3216         (optional(nullopt)): Change the base init.
3217         * testsuite/20_util/optional/assignment/8.cc: New.
3218         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
3219         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
3220
3221 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
3222
3223         PR libstdc++/80276
3224         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
3225         (get_template_arg_list): New.
3226         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
3227         instead.
3228         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
3229         of strings and regular expressions.
3230         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
3231         (FilteringTypePrinter): Add docstring. Match using startswith. Use
3232         strip_inline_namespaces instead of strip_versioned_namespace.
3233         (add_one_type_printer): Prepend namespace to match argument.
3234         (register_type_printers): Add type printers for char16_t and char32_t
3235         string types and for types using cxx11 ABI. Update calls to
3236         add_one_template_type_printer to provide default argument dicts.
3237         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
3238         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
3239         basic_string<unsigned char> and basic_string<signed char>.
3240         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
3241         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
3242
3243 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
3244
3245         PR libstdc++/81092
3246         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
3247
3248 2018-01-13  Tim Shen  <timshen@google.com>
3249
3250         PR libstdc++/83601
3251         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
3252         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
3253         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
3254
3255 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3256
3257         PR libstdc++/64054
3258         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
3259         Remove dg-xfail-run-if.
3260
3261 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
3262
3263         * include/bits/forward_list.h
3264         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
3265         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
3266         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
3267         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
3268         (_Fwd_list_impl()): Add noexcept qualification.
3269         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
3270         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
3271         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
3272         (_Fwd_list_base()): Default.
3273         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
3274         (_Fwd_list_base(_Fwd_list_base&&)): Default.
3275         (forward_list<>()): Default.
3276         (forward_list<>(forward_list&&)): Default.
3277         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
3278         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
3279         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
3280         * include/bits/forward_list.tcc
3281         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
3282         _M_impl._M_head move assignment.
3283         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
3284         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
3285
3286 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
3287
3288         PR libstdc++/80276
3289         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
3290         (UniquePointerPrinter): Print correct template argument, not type of
3291         the pointer.
3292         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
3293         a type.
3294         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
3295         array type.
3296         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
3297         weak_ptr of array types.
3298
3299 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
3300
3301         PR libstdc++/83709
3302         * include/bits/hashtable_policy.h
3303         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
3304         __first != __last.
3305         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
3306         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
3307         Add false_type parameter.
3308         (_Insert_base::insert): Adapt.
3309         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
3310         Adapt.
3311         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
3312          Add __n_elt parameter, defaulted to 1.
3313         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
3314         policy _M_need_rehash.
3315         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
3316         produce only 1 rehash if necessary.
3317         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
3318         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
3319
3320 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
3321             Jonathan Wakely  <jwakely@redhat.com>
3322
3323         PR libstdc++/59253 (partial)
3324         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
3325         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
3326         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
3327         children.
3328         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
3329         of unique_ptr printer.
3330         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
3331         output of shared_ptr printer.
3332
3333 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
3334
3335         PR libstdc++/83626
3336         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
3337         unnecessary symlink_status call.
3338         (remove_all(const path&, error_code&)): Use filesystem::remove.
3339         * src/filesystem/std-ops.cc: Likewise.
3340
3341         PR libstdc++/83279
3342         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
3343         sendfile.
3344
3345         PR libstdc++/83626
3346         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
3347         report an error for ENOENT.
3348         (remove_all(const path&)): Fix type of result variable.
3349         (remove_all(const path&, error_code&)): Use non-throwing increment
3350         for directory iterator. Call POSIX remove directly to avoid redundant
3351         calls to symlink_status. Do not report errors for ENOENT.
3352         * src/filesystem/std-ops.cc: Likewise.
3353         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
3354         overload.
3355         * testsuite/experimental/filesystem/operations/remove_all.cc:
3356         Likewise.
3357
3358 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
3359
3360         PR libstdc++/83626
3361         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
3362         redundant call to ec.clear().
3363         (remove_all(const path&, error_code&))): Do not return an error for
3364         non-existent paths.
3365         * src/filesystem/std-ops.cc: Likewise.
3366         * testsuite/27_io/filesystem/operations/remove.cc: New test.
3367         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
3368         results for non-existent paths.
3369         * testsuite/experimental/filesystem/operations/remove.cc: New test.
3370         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
3371         expected results for non-existent paths.
3372
3373         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
3374         check status_known once.
3375         * include/experimental/bits/fs_ops.h: Likewise.
3376
3377         PR libstdc++/83607
3378         * include/std/functional (__is_byte_like): New trait.
3379         (__is_std_equal_to): Remove.
3380         (__boyer_moore_base_t): Use __is_byte_like instead of
3381         __is_std_equal_to.
3382         * include/experimental/functional (__is_std_equal_to): Remove.
3383         (__boyer_moore_base_t): Use __is_byte_like instead of
3384         __is_std_equal_to.
3385         * testsuite/20_util/function_objects/83607.cc: New test.
3386
3387 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
3388
3389         Protect optional's deduction guide with the feature macro
3390         * include/std/optional: Use the feature macro.
3391
3392 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
3393
3394         Update copyright years.
3395 \f
3396 Copyright (C) 2018 Free Software Foundation, Inc.
3397
3398 Copying and distribution of this file, with or without modification,
3399 are permitted in any medium without royalty provided the copyright
3400 notice and this notice are preserved.