2021-01-21  Jonathan Wakely  <jwakely@redhat.com>

	* src/c++17/Makefile.in: Regenerate.

2021-01-20  David Edelsohn  <dje.gcc@gmail.com>

	* config/os/aix/ctype_inline.h (bool ctype<char>:: is): Cast
	_OBJ_DATA subscript to unsigned char. Add _THREAD_SAFE access to
	__lc_type.
	(const char* ctype<char>:: is): Same.

2021-01-18  Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/98725
	* testsuite/20_util/unique_ptr/io/lwg2948.cc:  Do not try to
	write to a wide character stream if wide character support is
	disabled in the library.

2021-01-18  Jonathan Wakely  <jwakely@redhat.com>

	* testsuite/27_io/basic_stringstream/cons/char/1.cc: Use
	stringbuf not wstringbuf.

2021-01-18  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98708
	* src/c++11/Makefile.am (cxx11-ios_failure-lt.s, cxx11-ios_failure.s):
	Compile with -gno-as-loc-support.
	* src/c++11/Makefile.in: Regenerated.

2021-01-16  H.J. Lu  <hjl.tools@gmail.com>

	* testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
	Add -fcf-protection=none to -march=i486.

2021-01-14  François Dumont  <fdumont@gcc.gnu.org>

	* testsuite/23_containers/deque/debug/98466.cc: Make it pre-C++11
	compliant.

2021-01-14  Alexandre Oliva  <oliva@adacore.com>

	* testsuite/30_threads/future/members/poll.cc: Calibrate
	iteration count.

2021-01-14  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/98466
	* include/bits/hashtable_policy.h (_Node_iterator_base()): Set _M_cur to nullptr.
	(_Node_iterator()): Make default.
	(_Node_const_iterator()): Make default.
	* include/debug/macros.h (__glibcxx_check_erae_range_after): Add _M_singular
	iterator checks.
	* include/debug/safe_iterator.h
	(_GLIBCXX_DEBUG_VERIFY_OPERANDS): Accept if both iterator are value initialized.
	* include/debug/safe_local_iterator.h (_GLIBCXX_DEBUG_VERIFY_OPERANDS):
	Likewise.
	* include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range): Add
	_M_singular checks on input iterators.
	* src/c++11/debug.cc (_Safe_iterator_base::_M_can_compare): Remove _M_singular
	checks.
	* testsuite/23_containers/deque/debug/98466.cc: New test.
	* testsuite/23_containers/unordered_map/debug/98466.cc: New test.

2021-01-14  Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/98471
	* include/bits/fs_path.h (__throw_conversion_error): New
	function to throw or abort on character conversion errors.
	(__wstr_from_utf8): Move definition after filesystem_error has
	been defined. Use __throw_conversion_error.
	(path::_S_convert<_EcharT>): Use __throw_conversion_error.
	(path::_S_str_convert<_CharT, _Traits, _Allocator>): Likewise.
	(path::u8string): Likewise.

2021-01-14  Jonathan Wakely  <jwakely@redhat.com>

	* include/std/barrier: Update copyright years. Fix whitespace.
	* include/std/version: Fix whitespace.
	* testsuite/30_threads/barrier/1.cc: Update copyright years.
	* testsuite/30_threads/barrier/2.cc: Likewise.
	* testsuite/30_threads/barrier/arrive.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
	* testsuite/30_threads/barrier/completion.cc: Likewise.

2021-01-13  Jonathan Wakely  <jwakely@redhat.com>

	* doc/doxygen/user.cfg.in (INPUT): Remove include/debug/array.

2021-01-10  David Edelsohn  <dje.gcc@gmail.com>

	PR libstdc++/98613
	* testsuite/ext/vstring/cons/moveable.cc: Suppress false positive
	warning.
	* testsuite/ext/vstring/modifiers/assign/move_assign.cc: Same.

2021-01-08  Olivier Hainque  <hainque@adacore.com>

	* testsuite/20_util/bind/ref_neg.cc: Tweak the
	dg-prune-output regex for out-of-build-tree contexts.

2021-01-07  Thomas Rodgers  <trodgers@redhat.com>

	* doc/doxygen/user.cfg.in: Add new header.
	* include/Makefile.am (std_headers): likewise.
	* include/Makefile.in: Regenerate.
	* include/precompiled/stdc++.h: Add new header.
	* include/std/barrier: New file.
	* include/std/version: Add __cpp_lib_barrier feature test macro.
	* testsuite/30_threads/barrier/1.cc: New test.
	* testsuite/30_threads/barrier/2.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
	* testsuite/30_threads/barrier/arrive.cc: Likewise.
	* testsuite/30_threads/barrier/completion.cc: Likewise.

2021-01-07  Patrick Palka  <ppalka@redhat.com>

	PR libstdc++/98384
	* testsuite/20_util/to_chars/long_double.cc: Use nexttowardl
	instead of the non-standard nextupl and nextdownl.

2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* configure: Re-generate.

2021-01-05  Ed Smith-Rowland  <3dw4rd@verizon.net>

	* include/precompiled/stdc++.h: Add <source_location> to C++20 section.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* ChangeLog-2020: Rotate ChangeLog.  New file.


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