path: root/libstdc++-v3/ChangeLog

2019-10-24  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-10-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/92143
	* libsupc++/new_opa.cc (operator new) [__APPLE__]: Increase alignment
	to at least sizeof(void*).
 
	Backport from mainline
	2019-10-08  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/Makefile.am (doc-html-docbook-regenerate): New target.
	(${docbook_outdir}/html): Do not create unused 'html/ext' directory.
	* doc/Makefile.in: Regenerate.
	* doc/xml/manual/documentation_hacking.xml: Document new target.
	* doc/html/*: Regenerate.
 
	* doc/xml/manual/allocator.xml: Use archived copy of CUJ article.
 
	Backport from mainline
	2019-05-31  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/allocator.xml: Move hoard.org back to http.
 
2019-09-11  Jonathan Wakely  <jwakely@redhat.com>
 
	* python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker.__call__):
	Fix syntax error.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	PR middle-end/89303
	* testsuite/20_util/enable_shared_from_this/89303.cc: New test.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Replace dg-error
	with dg-prune-output for enable_if failure.
	* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Add
	dg-prune-output for enable_if failure.
 
	Backport from mainline
	2019-07-31  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/91308
	* include/bits/unique_ptr.h (unique_ptr::__safe_conversion_up): Remove
	constraints on deleter that should only apply to the constructor.
	(unique_ptr<T[], D>::__safe_conversion_up): Likewise.
	(unique_ptr<T[], D>::unique_ptr(unique_ptr<U, D>&&)): Restore
	constraints on deleter here.
	* testsuite/20_util/unique_ptr/assign/91308.cc: New test.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-07-29  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/51333
	* libsupc++/cxxabi.h (__gnu_cxx::recursive_init_error): Do not define
	constructor inline.
	* libsupc++/guard_error.cc (__gnu_cxx::recursive_init_error): Define
	constructor.
	* testsuite/18_support/51333.cc: New test.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-06-07  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90770
	* src/Makefile.am (stamp-debug): Also test for missing makefile.
	* src/Makefile.in: Regenerate.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Add feature test macro for
	P0040R3.
	* doc/html/*: Regenerate.
 
	Backport from mainline
	2019-06-20  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Fix outdated reference to
	C++17 working draft.
 
	Backport from mainline
	2019-05-21  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants.
 
2019-09-02  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-05-17  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/random.h (seed_seq::param): Fix non-reserved name.
	* include/experimental/type_traits (is_detected_exact)
	(is_detected_exact_v): Likewise.
	* testsuite/17_intro/names.cc: Check for more non-reserved names.
	* testsuite/experimental/names.cc: New test.
 
2019-06-26  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-05-28  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90634
	* include/experimental/bits/fs_path.h (path::path(path&&)): Only call
	_M_split_cmpts() for a path with multiple components.
	(path::_S_is_dir_sep()): Add missing 'static' keyword to function.
	* src/filesystem/path.cc (path::_M_split_cmpts()): Count number of
	components and reserve space in vector. Return early when there is
	only one component.
	* testsuite/experimental/filesystem/path/construct/90634.cc: New test.
 
2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-02-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/89466
	* acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
	stylesheet directories before check for xsltproc. Try to use
	xmlcatalog to find local stylesheet directory before trying hardcoded
	paths. Add path used by suse to hardcoded paths. Adjust xsltproc
	check to look for the same stylesheet as doc/Makefile.am uses. Don't
	use xsltproc if xmlcatalog fails to find a local stylesheet.
	* configure.ac: Check for xmlcatalog.
	* Makefile.in: Regenerate.
	* configure: Likewise.
	* doc/Makefile.in: Likewise.
	* include/Makefile.in: Likewise.
	* libsupc++/Makefile.in: Likewise.
	* po/Makefile.in: Likewise.
	* python/Makefile.in: Likewise.
	* src/Makefile.in: Likewise.
	* src/c++11/Makefile.in: Likewise.
	* src/c++17/Makefile.in: Likewise.
	* src/c++98/Makefile.in: Likewise.
	* src/filesystem/Makefile.in: Likewise.
	* testsuite/Makefile.in: Likewise.
 
2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-01-22  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/88740
	* testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
	write to stderr instead of using printf.
 
2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/experimental/any (__any_caster): Use RTTI if comparing
	addresses fails, to support non-unique addresses in shared libraries.
	* include/std/any (__any_caster): Likewise.
	* testsuite/experimental/any/misc/any_cast_neg.cc: Use 0 for dg-error
	line number.
 
2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90220
	* include/experimental/any (__any_caster): Constrain to only be
	callable for object types. Use remove_cv_t instead of decay_t.
	If the type decays or isn't copy constructible, compare the manager
	function to a dummy specialization.
	(__any_caster): Add overload constrained for non-object types.
	(any::_Manager_internal<_Op>): Add dummy specialization.
	* testsuite/experimental/any/misc/any_cast.cc: Test function types
	and array types.
 
	Backport from mainline
	2019-04-24  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90220
	* include/std/any (__any_caster): Use remove_cv_t instead of decay_t.
	Avoid a runtime check for types that can never be stored in std::any.
	* testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
	array types.
 
	Backport from mainline
	2019-04-24  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90220 (partial)
	* include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do
	not attempt ill-formed static_cast to pointers to non-object types.
	* testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
	function types.
 
2019-05-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backported from mainline
	2019-01-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
	status.
	* include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
	Define.
	* include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
	changes are supported.
	* include/std/optional (__cpp_lib_optional): Likewise.
	* include/std/variant (__cpp_lib_variant): Likewise.
 
2019-05-08  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2019-04-17  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/90105
	* include/bits/forward_list.tcc (operator==): Do not use operator!= to
	compare elements.
	(forward_list<T, A>::sort(Comp)): When elements are equal take the one
	earlier in the list, so that sort is stable.
	* testsuite/23_containers/forward_list/operations/90105.cc: New test.
	* testsuite/23_containers/forward_list/comparable.cc: Test with
	types that meet the minimum EqualityComparable and LessThanComparable
	requirements. Remove irrelevant comment.
 
	Backport from mainline
	2019-03-11  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/89629
	* libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
	Use correct type for len_aligned.
	* testsuite/20_util/hash/89629.cc: New test.
 
2019-02-22  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/89446
	* include/bits/char_traits.h (__constant_char_array): Check index is
	in range before dereferencing.
	* testsuite/21_strings/basic_string_view/operators/char/89446.cc:
	New test.
 
2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>
 
	Backport from mainline
	2018-12-06  Iain Sandoe  <iain@sandoe.co.uk>
 
	* scripts/make_exports.pl (check names): Don’t try to export
	construction vtable symbols.
 
2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>
 
	Backport from mainline
	2018-12-06  Jonathan Wakely  <jwakely@redhat.com>
		    Iain Sandoe  <iain@sandoe.co.uk>
 
	PR libstdc++/64883
	* testsuite/17_intro/headers/c++1998/all_attributes.cc: Don't test
	always_inline on Darwin.
	* testsuite/17_intro/headers/c++2011/all_attributes.cc: Likewise.
	* testsuite/17_intro/headers/c++2014/all_attributes.cc: Likewise.
	* testsuite/17_intro/headers/c++2017/all_attributes.cc: Likewise.
	* testsuite/17_intro/headers/c++2020/all_attributes.cc: Likewise.
 
2018-12-24  Iain Sandoe  <iain@sandoe.co.uk>
 
	Backport from mainline
	2018-08-25  Iain Sandoe  <iain@sandoe.co.uk>
 
	PR libstdc++/70694
	* configure.host (OPT_LDFLAGS): Don't append
	-fvisibility-inlines-hidden for newer Darwin.
 
2018-12-06  Release Manager
 
	* GCC 7.4.0 released.
 
2018-11-28  François Dumont  <fdumont@gcc.gnu.org>
 
	PR libstdc++/88199
	* include/bits/hashtable.h
	(_Hashtable<>::_M_move_assign(_Hashtable&&, false_type)): Deallocate
	former buckets after assignment.
	* testsuite/23_containers/unordered_set/allocator/move_assign.cc
	(test03): New.
 
2018-10-31  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-10-31  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87822
	* include/bits/stl_pair.h (__pair_base): Change to class template.
	(pair): Make base class type depend on template parameters.
	* testsuite/20_util/pair/87822.cc: New test.
 
2018-10-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87749
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::operator=(basic_string&&)): For short strings copy the
	buffer inline. Only fall back to using assign(const basic_string&) to
	do a deep copy when reallocation is needed.
	* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
	New test.
	* testsuite/21_strings/basic_string/modifiers/assign/char/
	move_assign_optim.cc: New test.
	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
	New test.
	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
	move_assign_optim.cc: New test.
 
2018-10-23  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87704
	* include/bits/unique_ptr.h (unique_ptr::unique_ptr(nullptr_t)): Do
	not delegate to default constructor.
	(unique_ptr<T[], D>::unique_ptr(nullptr_t)): Likewise.
	* testsuite/20_util/unique_ptr/cons/incomplete.cc: New test.
 
2018-10-22  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-09-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79433
	* include/Makefile.am: Remove <bits/c++14_warning.h>.
	* include/Makefile.in: Regenerate.
	* include/bits/c++14_warning.h: Remove.
	* include/experimental/algorithm: Do not include <c++14_warning.h>.
	* include/experimental/any: Likewise.
	* include/experimental/array: Likewise.
	* include/experimental/bits/erase_if.h: Likewise.
	* include/experimental/bits/lfts_config.h: Likewise.
	* include/experimental/bits/shared_ptr.h: Likewise.
	* include/experimental/bits/string_view.tcc: Likewise.
	* include/experimental/chrono: Likewise.
	* include/experimental/deque: Likewise.
	* include/experimental/filesystem: Do not include <c++0x_warning.h>.
	* include/experimental/forward_list: Do not include <c++14_warning.h>.
	* include/experimental/functional: Likewise.
	* include/experimental/iterator: Likewise.
	* include/experimental/list: Likewise.
	* include/experimental/map: Likewise.
	* include/experimental/memory: Likewise.
	* include/experimental/numeric: Likewise.
	* include/experimental/optional: Likewise.
	* include/experimental/propagate_const: Likewise.
	* include/experimental/ratio: Likewise.
	* include/experimental/regex: Likewise.
	* include/experimental/set: Likewise.
	* include/experimental/string: Likewise.
	* include/experimental/string_view: Likewise.
	* include/experimental/system_error: Likewise.
	* include/experimental/tuple: Likewise.
	* include/experimental/type_traits: Likewise.
	* include/experimental/unordered_map: Likewise.
	* include/experimental/unordered_set: Likewise.
	* include/experimental/vector: Likewise.
	* testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error
	line number.
	* testsuite/experimental/array/neg.cc: Likewise.
	* testsuite/experimental/propagate_const/assignment/move_neg.cc:
	Likewise.
	* testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements5.cc: Likewise.
 
2018-10-18  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-10-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87641
	* include/bits/valarray_array.h (__valarray_sum): Use first element
	to initialize accumulator instead of value-initializing it.
	* testsuite/26_numerics/valarray/87641.cc: New test.
 
2018-10-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/22_locale/numpunct/members/char/3.cc: Adjust test to
	account for change to glibc it_IT localedata (glibc bz#10797).
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86751
	* include/bits/stl_pair.h (__pair_base): New class with deleted copy
	assignment operator.
	(pair): Derive from __pair_base.
	(pair::operator=): Remove deleted overload.
	* python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
	so that new base class isn't shown in GDB.
	* testsuite/20_util/pair/86751.cc: New test.
	* testsuite/20_util/pair/ref_assign.cc: New test.
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-09-03  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78595
	* include/bits/stl_map.h (map::insert(_Pair&&))
	(map::insert(const_iterator, _Pair&&)): Do emplace instead of insert.
	* include/bits/stl_multimap.h (multimap::insert(_Pair&&))
	(multimap::insert(const_iterator, _Pair&&)): Likewise.
	* include/bits/unordered_map.h (unordered_map::insert(_Pair&&))
	(unordered_map::insert(const_iterator, _Pair&&))
	(unordered_multimap::insert(_Pair&&))
	(unordered_multimap::insert(const_iterator, _Pair&&)): Likewise.
	* include/std/type_traits (__enable_if_t): Define for C++11.
	* testsuite/23_containers/map/modifiers/insert/78595.cc: New test.
	* testsuite/23_containers/multimap/modifiers/insert/78595.cc: New test.
	* testsuite/23_containers/unordered_map/modifiers/78595.cc: New test.
	* testsuite/23_containers/unordered_multimap/modifiers/78595.cc: New
	test.
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-08-30  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/ext/pointer.h (_Pointer_adapter): Define operators for
	pointer arithmetic using long long offsets.
	* testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
	long long values.
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-08-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/21_strings/basic_string/init-list.cc:
	Require cxx11-abi.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
	Likewise.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
	Likewise.
 
	Backport from mainline
	2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87061
	* include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI]
	(experimental::pmr::match_results, experimental::pmr::cmatch)
	(experimental::pmr::smatch, experimental::pmr::wcmatch)
	(experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI,
	because COW strings don't support C++11 allocator model.
	* include/experimental/string [!_GLIBCXX_USE_CXX11_ABI]
	(experimental::pmr::basic_string, experimental::pmr::string)
	(experimental::pmr::u16string, experimental::pmr::u32string)
	(experimental::pmr::wstring): Likewise.
 
	Backport from mainline
	2018-08-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/experimental/regex: Remove begin/end macros for namespace.
	* include/experimental/string: Likewise.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_forward_list.cc: New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_multimap.cc: New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_multiset.cc: New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
	New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_unordered_map.cc: New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_unordered_multimap.cc: New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_unordered_multiset.cc: New test.
	* testsuite/experimental/polymorphic_allocator/
	pmr_typedefs_unordered_set.cc: New test.
	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
	New test.
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/70966
	* include/experimental/memory_resource (__get_default_resource): Use
	placement new to create an object with dynamic storage duration.
 
	Backport from mainline
	2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/70966
	* include/experimental/memory_resource (__resource_adaptor_imp): Add
	static assertions to enforce requirements on pointer types.
	(__resource_adaptor_imp::get_allocator()): Add noexcept.
	(new_delete_resource, null_memory_resource): Return address of an
	object with dynamic storage duration.
	(__null_memory_resource): Remove.
	* testsuite/experimental/memory_resource/70966.cc: New.
 
2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/77854
	* doc/xml/manual/status_cxx1998.xml: Document size_type and
	difference_type for containers.
	* doc/html/*: Regenerate.
 
2018-10-08  Joseph Myers  <joseph@codesourcery.com>
 
	Backport from mainline
	2018-10-02  Joseph Myers  <joseph@codesourcery.com>
 
	* testsuite/lib/libstdc++.exp (libstdc++_init): Use
	-fno-show-column in default cxxflags.
 
2018-10-08  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-10-08  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/87538
	* include/std/functional (_Not_fn::operator()): Check value of
	__is_nothrow_invocable as well.
	* testsuite/20_util/function_objects/not_fn/87538.cc: New test.
	* testsuite/experimental/functional/87538.cc: New test.
 
2018-08-13  Jonathan Wakely  <jwakely@redhat.com>
 
	Revert
	2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
	PR target/85904
	* configure.ac: Define HAVE_ALIGNED_ALLOC if building for
	Newlib.
	* configure: Regenerate.
 
2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
	Backport from mainline
	2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
	PR target/85904
	* configure.ac: Define HAVE_ALIGNED_ALLOC if building for
	Newlib.
	* configure: Regenerate.
 
2018-08-08  Jonathan Wakely  <jwakely@redhat.com>
 
	* libsupc++/new_opa.cc (aligned_alloc): Declare inside namespace to
	avoid clashing with an ::aligned_alloc function that was not detected
	by configure.
 
	* doc/xml/manual/using.xml: Remove empty table cell.
	* doc/html/*: Regenerate.
 
	* doc/xml/manual/using.xml: Add missing header to table and fix typo.
	Remove C++17 and C++2a headers not present on gcc-7-branch.
	* doc/html/*: Regenerate.
 
2018-08-07  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86138
	* include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
	Declare explicit instantiations of COW empty reps and I/O functions.
 
	Backport from mainline
	2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/85672
	* include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
	to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
	within conditional block.
 
	Backport from mainline
	2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
 
	PR libstdc++/84654
	* acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
	* config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
	* configure: Regenerate.
	* include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
	based on ENABLE_FLOAT128.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
	[!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
	_GLIBCXX_USE_FLOAT128.
 
	Backport from mainline
	2017-06-17  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80893
	* testsuite/23_containers/vector/bool/80893.cc: Add { target c++11 }.
 
	Backport from mainline
	2017-05-31  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80893
	* include/bits/stl_bvector.h (vector<bool>::_M_initialize): Avoid
	null pointer dereference when size is zero.
	* testsuite/23_containers/vector/bool/80893.cc: New.
	* testsuite/util/testsuite_allocator.h (PointerBase::PointerBase):
	Add non-explicit constructor from nullptr.
	(PointerBase::derived() const): Add const-qualified overload.
 
	Backport from mainline
	2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/68519
	* include/std/condition_variable (condition_variable::wait_for):
	Convert duration to native clock's duration before addition.
	* testsuite/30_threads/condition_variable/members/68519.cc: New test.
 
	Backport from mainline
	2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86292
	* include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
	Add try-catch block.
	* testsuite/23_containers/vector/cons/86292.cc: New.
 
	Backport from mainline
	2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/test.xml: Improve documentation on writing tests for
	newer standards.
	* doc/xml/manual/using.xml: Document all headers for C++11 and later.
	* doc/html/*: Regenerate.
 
	Backport from mainline
	2018-08-03  Jonathan Wakely  <jwakely@redhat.com>
 
	* src/c++11/system_error.cc
	(system_error_category::default_error_condition): Add workaround for
	ENOTEMPTY and EEXIST having the same value on AIX.
	* testsuite/19_diagnostics/error_category/system_category.cc: Add
	extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
 
	Backport from mainline
	2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/60555
	* src/c++11/system_error.cc
	(system_error_category::default_error_condition): New override to
	check for POSIX errno values.
	* testsuite/19_diagnostics/error_category/generic_category.cc: New
	* testsuite/19_diagnostics/error_category/system_category.cc: New
	test.
 
	Backport from mainline
	2018-08-07  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86861
	* libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] (aligned_alloc):
	Replace macro with inline function.
	[__sun]: Increase alignment to meet memalign precondition.
	[!HAVE__ALIGNED_MALLOC && !HAVE_POSIX_MEMALIGN && !HAVE_MEMALIGN]
	(aligned_alloc): Move check for valid alignment to operator new.
	Remove redundant check for non-zero size, it's enforced by the caller.
	(operator new): Move check for valid alignment here. Use
	__builtin_expect on check for zero size.
 
	Backport from mainline
	2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
 
	* libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
	workaround for aligned_alloc bug on AIX.
	* testsuite/18_support/new_aligned.cc: New test.
 
	Backport from mainline
	2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86734
	* include/bits/stl_iterator.h (reverse_iterator::operator->): Use
	addressof (LWG 2188).
	* testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
 
	Backport from mainline
	2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
	[__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
	little_endian element in bitmask.
	* testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
	* testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
 
2018-07-05  François Dumont  <fdumont@gcc.gnu.org>
 
	Backport from mainline
	2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
 
	PR libstdc++/86272
	* include/debug/string
	(__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
	Use __glibcxx_check_insert_range.
 
2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
 
	src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
 
	Backport from mainline
	2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
 
	LWG 3050 Fix cv-qualification of convertibility constraints
	* include/std/chrono (duration, operator*, operator/, operator%): Use
	const-qualified type as source type in is_convertible constraints.
	* testsuite/20_util/duration/arithmetic/dr3050.cc: New.
	* testsuite/20_util/duration/cons/dr3050.cc: New.
	* testsuite/20_util/duration/literals/range.cc: Rename to...
	* testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
	dg-error lineno.
 
	Backport from mainline
	2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86127
	* include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
	unused typedef.
	(_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
	Use node allocator to create and destroy elements.
	(forward_list::_Tp_alloc_type): Remove unused typedef.
	(forward_list::_Alloc_traits): Use allocator_traits instead of
	__gnu_cxx::__alloc_traits.
	* include/bits/forward_list.tcc (_Fwd_list_base::_M_erase_after):
	Use node allocator to create and destroy elements.
 
	Backport from mainline
	2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (__erased_dtor): Qualify call to __get.
 
	Backport from mainline
	2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
	__invoke to prevent ADL.
 
	Backport from mainline
	2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
	__get calls to avoid ADL and avoid ambiguity due to Clang bug.
 
	Backport from mainline
	2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (__get): Qualify calls to avoid ADL.
	(__select_index): Adjust whitespace.
	(variant): Add using-declaration to workaround Clang bug.
 
	Backport from mainline
	2018-05-24  Maya Rashish  <coypu@sdf.org>
 
	PR target/85904
	* crossconfig.m4: Test for aligned_alloc on netbsd.
	* configure: Regenerate.
 
	Backport from mainline
	2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/85098
	* include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
	(basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
	(basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
	(basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
	definitions.
	* include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
	whitespace.
	* testsuite/28_regex/basic_regex/85098.cc: New
 
	Backport from mainline
	2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/85671
	* include/experimental/bits/fs_path.h (operator/): Likewise.
 
	Backport from mainline
	2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
		    Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83982
	* include/bits/vector.tcc (vector::_M_default_append(size_type)):
	Default-construct new elements before moving existing ones.
	* testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
	New.
 
	Backport from mainline
	2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84087 LWG DR 2268 basic_string default arguments
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
	(append(const basic_string&, size_type, size_type)
	(assign(const basic_string&, size_type, size_type)
	(insert(size_type, const basic_string&, size_type, size_type)
	(replace(size_type,size_type,const basic_string&,size_type,size_type)
	(compare(size_type,size_type,constbasic_string&,size_type,size_type)):
	Add default arguments (LWG 2268).
	[_GLIBCXX_USE_CXX11_ABI=0]
	(append(const basic_string&, size_type, size_type)
	(assign(const basic_string&, size_type, size_type)
	(insert(size_type, const basic_string&, size_type, size_type)
	(replace(size_type,size_type,const basic_string&,size_type,size_type)
	(compare(size_type,size_type,constbasic_string&,size_type,size_type)):
	Likewise.
	* testsuite/21_strings/basic_string/dr2268.cc: New test.
 
2018-06-22  Jakub Jelinek  <jakub@redhat.com>
 
	Backported from mainline
	2018-04-18  David Malcolm  <dmalcolm@redhat.com>
 
	PR jit/85384
	* configure: Regenerate.
 
2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86138
	* include/bits/basic_string.tcc:
	[__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
	(basic_string<char>::_Rep::_S_empty_rep_storage)
	(basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
	instantiation declarations.
	[__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
	explicit instantiation declarations.
	* testsuite/21_strings/basic_string/cons/char/86138.cc: New.
	* testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
 
2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
 
	* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 
2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/utility: Remove unused <exception> header.
 
2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/86169
	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::data()): Unshare string.
	* testsuite/21_strings/basic_string/operations/data/char/86169.cc:
	New.
 
2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
	define for C++17 and above.
 
2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/85812
	* libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
	* libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
	Refactor to separate non-throwing and throwing implementations.
	[__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
	if constructing the object throws.
 
2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/67554
	* include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
	(_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
 
	PR libstdc++/82966
	* include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
	instead of type.
	* testsuite/23_containers/set/modifiers/node_swap.cc: New.
 
2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
	* doc/xml/manual/debug_mode.xml: Add array and forward_list to list
	of C++11 containers with Debug Mode support.
	* doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
	* doc/html/*: Regenerate.
 
2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
 
	PR libstdc++/80506
	* include/bits/random.tcc (gamma_distribution::operator()): Fix magic
	number used in loop condition.
	(gamma_distribution::__generate_impl()): Ditto.
 
2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84769
	* include/std/variant (visit): Qualify std::get call.
 
	PR libstdc++/85632 use uintmax_t for arithmetic
	* src/filesystem/ops.cc (experimental::filesystem::space): Perform
	arithmetic in result type.
	* testsuite/experimental/filesystem/operations/space.cc: New.
 
2018-04-30  Edward Smith-Rowland  <3dw4rd@verizon.net>
 
	PR libstdc++/pr66689 - comp_ellint_3 and ellint_3 return garbage values
	* include/tr1/ell_integral.tcc: Correct the nu sign convention
	in ellint_3 and comp_ellint_3.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	06_comp_ellint_3/check_value.cc: Regen with correct values.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	14_ellint_3/check_value.cc: Ditto.
	* testsuite/special_functions/06_comp_ellint_3/check_value.cc: Ditto.
	* testsuite/special_functions/13_ellint_3/check_value.cc: Ditto.
	* testsuite/special_functions/06_comp_ellint_3/pr66689.cc: New.
	* testsuite/special_functions/13_ellint_3/pr66689.cc: New.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	06_comp_ellint_3/pr66689.cc: New.
	* testsuite/tr1/5_numerical_facilities/special_functions/
	14_ellint_3/pr66689.cc: New.
 
2018-04-30  Edward Smith-Rowland  <3dw4rd@verizon.net>
 
	PR libstdc++/68397 std::tr1::expint fails ... long double arguments.
	* include/tr1/exp_integral.tcc: Increase iteration limits.
	* testsuite/tr1/5_numerical_facilities/special_functions/15_expint/
	pr68397.cc: New test.
	* testsuite/special_functions/14_expint/pr68397.cc: New test.
 
2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>
 
	PR libstdc++/85442
	* src/c++11/Makefile.am: Don't generate debuginfo again for
	cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
	* src/c++11/Makefile.in: Regenerate.
 
2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
 
	* src/c++11/Makefile.am: Fix sed command.
	* src/c++11/Makefile.in: Regenerate.
 
	* src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
	handle mangled names starting with double underscores on darwin.
	* src/c++11/Makefile.in: Regenerate.
 
2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
 
	* src/c++11/Makefile.am: Fix comment.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/cxx11-ios_failure.cc: Fix comment.
	* src/c++98/ios_failure.cc: Likewise.
 
	Backport from mainline
	2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/85222
	* src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
	cxx11-ios_failure.cc to rewrite type info for __ios_failure.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
	New types.
	[_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
	* src/c++11/ios.cc (__throw_ios_failure): Remove definition.
	(_GLIBCXX_USE_CXX11_ABI): Don't define here.
	* src/c++98/ios_failure.cc (__construct_ios_failure)
	(__destroy_ios_failure, is_ios_failure_handler): New functions.
	[!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
	* testsuite/27_io/ios_base/failure/dual_abi.cc: New.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
	handler types, to always catch std::ios_base::failure.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
 
2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
	PR libstdc++/77691
	* testsuite/experimental/memory_resource/resource_adaptor.cc:
	xfail execution on 32-bit Solaris/x86.
 
2018-03-13  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84769
	* include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
	Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
 
2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84773
	PR libstdc++/83662
	* crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
	* configure: Regenerate.
	* include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
	(aligned_alloc): Add using-declaration.
	* testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
 
2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84671
	* include/bits/parse_numbers.h (_Number_help): Add partial
	specialization to handle digit separators. Adjust partial
	specialization for recursion temrination to require _Pow == 1ULL.
	* testsuite/20_util/duration/literals/84671.cc: New
 
2018-02-26  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/84532
	* include/std/thread (thread::__make_invoker): Construct tuple
	directly instead of using make_tuple.
	* testsuite/30_threads/async/84532.cc: New.
	* testsuite/30_threads/thread/84532.cc: New.
 
2018-02-19  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81797
	* configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
	* configure: Regenerate.
	* include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
	defined.
	* include/Makefile.in: Regenerate.
 
2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83833
	* testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
	Add -ffloat-store to options for m68k and ia32.
 
	PR libstdc++/83658
	* include/std/any (any::__do_emplace): Only set _M_manager after
	constructing the contained object.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
	* testsuite/20_util/any/modifiers/83658.cc: New test.
 
	Backport from mainline
	2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83833
	* include/bits/random.h (chi_squared_distribution::param): Update
	gamma distribution parameter.
	* testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
	test.
 
2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81076
	* include/c_global/cstddef (__byte_operand): Define primary template.
	* testsuite/18_support/byte/81076.cc: New test.
 
	Backport from mainline
	2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83830
	* include/std/type_traits (has_unique_object_representations_v): Add
	variable template.
	* testsuite/20_util/has_unique_object_representations/value.cc: Check
	variable template.
 
2018-01-25  Release Manager
 
	* GCC 7.3.0 released.
 
2018-01-19  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83834
	* config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
	pattern with exact match for std::cerr.
 
2018-01-18  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-10-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/intro.xml: Include new section.
	* doc/xml/manual/status_cxxis29124.xml: New section on IS 29124
	status.
	* doc/html/*: Regenerate.
 
	Backport from mainline
	2017-10-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Update references to C++17
	section numbers.
 
2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
 
	* testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
 
2018-01-13  Jonathan Wakely  <jwakely@redhat.com>
 
	* python/libstdcxx/v6/printers.py (register_type_printers): Remove
	printer for experimental::any. Fix printers for experimental::optional
	and experimental::basic_string_view.
 
	Backport from mainline
	2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83626
	* src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
	unnecessary symlink_status call.
	(remove_all(const path&, error_code&)): Use filesystem::remove.
 
2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-10-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/experimental/filesystem/iterators/
	recursive_directory_iterator.cc: Ensure that error_code arguments are
	cleared when required.
	* testsuite/experimental/filesystem/operations/create_directory.cc:
	Remove redundant check.
	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
	Ensure that error_code argument is cleared when required.
 
	Backport from mainline
	2017-12-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83600
	* include/bits/regex.h (match_results::end()): Return valid iterator
	when not ready.
	* testsuite/28_regex/match_results/ctors/char/default.cc: Check that
	unready objects are empty and have equal begin and end iterators.
	* testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
 
	Backport from mainline
	2017-12-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83598
	* include/bits/regex.h (basic_regex): Don't modify flags passed to
	constructors.
	* testsuite/28_regex/basic_regex/ctors/83598.cc: New test.
 
	Backport from mainline
	2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83279
	* src/filesystem/std-ops.cc (do_copy_file): Handle sendfile not
	copying entire file.
 
	Backport from mainline
	2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/experimental/fs_ops.h (exists(const path&, error_code&))):
	Only check status_known once.
 
	Backport from mainline
	2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83626
	* src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
	report an error for ENOENT.
	(remove_all(const path&)): Fix type of result variable.
	(remove_all(const path&, error_code&)): Use non-throwing increment
	for directory iterator. Call POSIX remove directly to avoid redundant
	calls to symlink_status. Do not report errors for ENOENT.
	* testsuite/experimental/filesystem/operations/remove_all.cc: Test
	throwing overload.
 
	Backport from mainline
	2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83626
	* src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
	redundant call to ec.clear().
	(remove_all(const path&, error_code&))): Do not return an error for
	non-existent paths.
	* testsuite/experimental/filesystem/operations/remove.cc: New test.
	* testsuite/experimental/filesystem/operations/remove_all.cc: Fix
	expected results for non-existent paths.
 
	Backport from mainline
	2017-10-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79283
	* src/filesystem/ops.cc (read_symlink): Handle st_size being zero.
 
2018-01-04  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Backport from mainline
	2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Protect optional's deduction guide with the feature macro
	* include/std/optional: Use the feature macro.
 
2017-12-28  François Dumont  <fdumont@gcc.gnu.org>
 
	Backport from mainline
	2017-12-20  François Dumont  <fdumont@gcc.gnu.org>
 
	PR libstdc++/82522
	* include/debug/map.h (map::insert(value_type&&))
	(map::insert(const_iterator, value_type&&)): Add overload for rvalues.
	* include/debug/multimap.h (multimap::insert(value_type&&))
	(multimap::insert(const_iterator, value_type&&)): Likewise.
	* include/debug/unordered_map (unordered_map::insert(value_type&&))
	(unordered_map::insert(const_iterator, value_type&&))
	(unordered_multimap::insert(value_type&&))
	(unordered_multimap::insert(const_iterator, value_type&&)): Likewise.
	* testsuite/23_containers/map/modifiers/insert/dr2354.cc (test02): New.
	* testsuite/23_containers/multimap/modifiers/insert/dr2354.cc (test02):
	New.
	* testsuite/23_containers/unordered_map/insert/dr2354.cc (test02): New.
	* testsuite/23_containers/unordered_multimap/insert/dr2354.cc (test02):
	New.
 
2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83427
	* include/bits/refwrap.h (_Weak_result_type_impl)
	(_Reference_wrapper_base): Deduce noexcept for function types.
	* testsuite/20_util/bind/83427.cc: New test.
	* testsuite/20_util/reference_wrapper/83427.cc: New test.
 
	PR libstdc++/59568
	* include/std/complex (operator>>): Only use putback if a character
	was successfully extracted and only set the value if a number was
	successfully extracted.
	* testsuite/26_numerics/complex/inserters_extractors/char/59568.cc:
	New test.
 
2017-12-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83395
	* include/std/type_traits (__is_invocable_impl): Remove partial
	specialization for INVOKE<void> and restore is_void<R> check in
	primary template.
	(__is_nt_invocable_impl): Likewise.
	* testsuite/20_util/is_invocable/83395.cc: New test.
	* testsuite/20_util/is_nothrow_invocable/83395.cc: New test.
 
2017-12-01  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-10-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/82522
	* doc/xml/manual/intro.xml: Document LWG 2354 changes.
	* include/bits/stl_map.h (map::insert(value_type&&))
	(map::insert(const_iterator, value_type&&)): Add overload for rvalues.
	* include/bits/stl_multimap.h (multimap::insert(value_type&&))
	(multimap::insert(const_iterator, value_type&&)): Likewise.
	* include/bits/unordered_map.h (unordered_map::insert(value_type&&))
	(unordered_map::insert(const_iterator, value_type&&))
	(unordered_multimap::insert(value_type&&))
	(unordered_multimap::insert(const_iterator, value_type&&)): Likewise.
	* testsuite/23_containers/map/modifiers/insert/dr2354.cc: New test.
	* testsuite/23_containers/multimap/modifiers/insert/dr2354.cc: New
	test.
	* testsuite/23_containers/unordered_map/insert/dr2354.cc: New test.
	* testsuite/23_containers/unordered_multimap/insert/dr2354.cc: New
	test.
 
	Backport from mainline
	2017-11-23  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83134
	* include/std/type_traits (__not_): Explicitly convert to bool.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error.
	* testsuite/20_util/logical_traits/83134.cc: New test.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
	dg-error.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
 
	Backport from mainline
	2017-12-01  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/type_traits (integral_constant): Make member functions
	noexcept (LWG 2346).
	* include/std/utility (integer_sequence): Likewise.
 
	Backport from mainline
	2017-11-16  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/future (shared_future): Add noexcept to copy constructor
	and copy-assignment operator (LWG 2799).
 
	Backport from mainline
	2017-11-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/range_access.h (size, empty, data): Add conditional
	noexcept to generic overloads.
 
	Backport from mainline
	2017-10-24  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/82685
	* include/experimental/string_view (operator""sv): Add noexcept.
	* include/std/string_view (operator""sv): Likewise.
 
	Backport from mainline
	2017-11-30  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/83226
	* include/bits/node_handle.h (_Node_handle::__pointer): Avoid forming
	pointer-to-reference types.
	* testsuite/23_containers/map/modifiers/insert/83226.cc: New test.
 
	Backport from mainline
	2017-11-14  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/locale_conv.h (wbuffer_convert::_M_conv_get): Fix typo.
	* testsuite/22_locale/conversions/buffer/3.cc: New test.
 
	Backport from mainline
	2017-11-03  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/node_handle.h (_Node_insert_return::get): Remove, as
	per P0508R0.
 
2017-10-25  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx1998.xml: Correct statement about
	what the doc covers.
	* doc/xml/manual/status_cxx2011.xml: Likewise.
	* doc/xml/manual/status_cxx2014.xml: Likewise.
	* doc/xml/manual/status_cxx2017.xml: Update C++17 status, and
	information on feature-test macros.
	* doc/xml/manual/status_cxxtr1.xml: Correct statement about what
	the doc covers.
	* doc/xml/manual/status_cxxtr24733.xml: Likewise.
	* doc/html/*: Regenerate.
 
2017-10-23  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-07-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81395
	* include/bits/fstream.tcc (basic_filebuf::xsgetn): Don't set buffer
	pointers for write mode after reading.
	* testsuite/27_io/basic_filebuf/sgetn/char/81395.cc: New.
 
2017-10-21  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/experimental/filesystem/path/itr/traversal.cc: Do not
	increment past-the-end iterators.
 
2017-10-20  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/chrono (__cpp_lib_chrono): Update macro value to
	indicate support for P0505R0.
	* testsuite/20_util/duration/arithmetic/constexpr_c++17.cc: Check
	for updated macro.
 
	* include/c_global/cstddef: Define __cpp_lib_byte feature-test macro.
	* testsuite/18_support/byte/requirements.cc: Check macro.
 
	Backport from mainline
	2017-10-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/82481
	* include/std/mutex (call_once): Suppress clang-tidy warnings about
	dangling references.
 
	Backport from mainline
	2017-09-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79433
	* doc/xml/manual/status_cxx2017.xml: Update feature-test macros.
	* doc/html/*: Regenerate.
	* include/Makefile.am: Remove <bits/c++17_warning.h>.
	* include/Makefile.in: Regenerate.
	* include/bits/c++17_warning.h: Remove.
	* include/bits/string_view.tcc: Do not include <bits/c++17_warning.h>
	for pre-C++17 modes.
	* include/std/any: Likewise.
	(__cpp_lib_any): Define.
	* include/std/mutex (__cpp_lib_scoped_lock): Adjust value as per new
	SD-6 draft.
	* include/std/numeric (__cpp_lib_gcd_lcm): Define as per new SD-6
	draft.
	* include/std/optional: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_optional): Define.
	* include/std/shared_mutex: Do not include <bits/c++14_warning.h>.
	* include/std/string_view: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_string_view): Define.
	* include/std/variant: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_variant): Define.
	* testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/26_numerics/gcd/1.cc: Test for __cpp_lib_gcd_lcm.
	* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/26_numerics/lcm/1.cc: Test for __cpp_lib_gcd_lcm.
	* testsuite/26_numerics/lcm/lcm_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Adjust
	expected value of __cpp_lib_scoped_lock.
 
	Backport from mainline
	2017-10-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/experimental/bits/fs_path.h (path::iterator++(int))
	(path::iterator--(int)): Fix for paths with only one component.
	* testsuite/experimental/filesystem/path/itr/traversal.cc: Test
	post-increment and post-decrement.
 
2017-09-21  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/25_algorithms/clamp/1.cc: Fix order of arguments and
	expected results when using predicate defining reverse order.
	* testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
 
2017-09-20  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-06-14  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/test.xml: Correct instructions on running tests.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Adjust to pass when
	-D_GLIBCXX_USE_CXX11_ABI=0 added to RUNTESTFLAGS.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
 
	PR libstdc++/79162
	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_If_sv): Remove from the overload set when the
	argument is derived from basic_string.
 
	PR libstdc++/79162
	* include/bits/basic_string.h (basic_string::_If_sv): Remove from the
	overload set when the argument is derived from basic_string.
	* testsuite/21_strings/basic_string/cons/char/moveable2_c++17.cc: New
	test.
	* testsuite/21_strings/basic_string/cons/wchar_t/moveable2_c++17.cc:
	New test.
 
	* testsuite/24_iterators/range_access_cpp17.cc: Fix order of dg-do
	and dg-options directives. Fix invalid test.
 
	Backport from mainline
	2017-09-20  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/82262
	* include/std/optional (__optional_hash_call_base): Add template
	parameter for remove_const_t<_Tp> and use it consistently.
	* testsuite/20_util/optional/hash.cc: Test optional<const T>.
 
	Backport from mainline
	2017-09-19  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/82254
	* include/std/type_traits (__is_invocable): Add partial specialization
	for INVOKE<void> case and remove is_void<R> check from partial
	specialization for INVOKE<R> case.
	(__is_nt_invocable_impl): New helper for is_nothrow_invocable_r.
	(is_nothrow_invocable_r): Use __is_nt_invocable_impl.
	* testsuite/20_util/is_nothrow_invocable/value.cc: Add tests for
	conversions that can throw or fail to convert. Use static assert
	strings to explain negative results.
	* testsuite/20_util/is_nothrow_invocable/value_ext.cc: Use
	is_nothrow_constructible in is_nt_invocable_conv.
 
2017-09-13  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-09-04  Daniel Kruegler  <daniel.kruegler@gmail.com>
 
	PR libstdc++/79162
	Implement LWG 2946, LWG 2758's resolution missed further corrections
	* include/bits/basic_string.h (basic_string::compare): Add missing
	required noexcept specifications.
	(basic_string): Introduce internal _S_to_string_view and __sv_wrapper
	for implicit string_view conversion.
	(basic_string::basic_string): Fix explicit string_view conversion by
	implicit conversion using _S_to_string_view and __sv_wrapper.
	(basic_string): Introduce internal basic_string(__sv_wrapper, Alloc)
	constructor.
	(basic_string): Fix operator=(T) template by operator=(const T&)
	template for uncopyable types (PR 79162).
	(basic_string::operator+=, basic_string::append, basic_string::assign)
	(basic_string::insert, basic_string::replace, basic_string::find)
	(basic_string::rfind, basic_string::find_first_of)
	(basic_string::find_last_of, basic_string::find_first_not_of)
	(basic_string::find_last_not_of, basic_string::compare): Replace
	__sv_type argument by template const T& (LWG 2946) and correct
	documentation describing __sv_type argument.
	(basic_string::find, basic_string::rfind, basic_string::find_first_of)
	(basic_string::find_last_of, basic_string::find_first_not_of)
	(basic_string::find_last_not_of, basic_string::compare): Replace
	unconditional noexcept specification by conditional noexcept
	specification to partially balance the removal of noexcept by LWG 2946.
	* testsuite/21_strings/basic_string/79162.cc: New.
	* testsuite/21_strings/basic_string/lwg2946.cc: New.
 
2017-09-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81468
	* include/std/chrono (time_point(const time_point<_Dur2>&)): Add
	missing constraint from LWG DR 1177.
	* testsuite/20_util/duration/cons/dr1177.cc: New.
	* testsuite/20_util/time_point/cons/81468.cc: New.
	* testsuite/20_util/duration/literals/range.cc: Update dg-error line.
 
	* doc/doxygen/mainpage.html: Fix broken URLs.
 
	PR libstdc++/81835
	* doc/xml/manual/extensions.xml: Replace unstable URL.
	* doc/html/manual/ext_demangling.html: Regenerate.
	* libsupc++/cxxabi.h (__cxa_demangle): Fix broken URL.
 
2017-09-12  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-09-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/70483
	* include/experimental/bits/string_view.tcc (basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of): Add constexpr specifier.
	* include/experimental/string_view (basic_string_view::remove_prefix)
	(basic_string_view::remove_suffix, basic_string_view::swap)
	(basic_string_view::compare, basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of, operator==, operator!=)
	(operator<, operator>, operator<=, operator>=): Likewise.
	* testsuite/experimental/string_view/operations/compare/char/70483.cc:
	New.
 
	Backport from mainline
	2017-09-11  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/70483
	* include/bits/string_view.tcc (basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of): Add constexpr specifier.
	* include/std/string_view (basic_string_view::operator=)
	(basic_string_view::rbegin, basic_string_view::rend)
	(basic_string_view::crbegin, basic_string_view::crend)
	(basic_string_view::remove_prefix, basic_string_view::remove_suffix)
	(basic_string_view::swap, basic_string_view::compare)
	(basic_string_view::find, basic_string_view::rfind)
	(basic_string_view::find_first_of, basic_string_view::find_last_of)
	(basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of, basic_string_view::_M_check)
	(basic_string_view::_M_limit, operator==, operator!=, operator<)
	(operator>, operator<=, operator>=): Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
	char/1.cc: Repeat tests in constexpr context.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
	wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
	char/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
	wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/char/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/range_access/char/1.cc: Test
	cbegin, cend, rbegin, rend, crbegin and crend.
	* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
	Remove trailing whitespace.
	* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
	1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc:
	New.
	* testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc:
	New.
	* testsuite/21_strings/basic_string_view/operations/compare/char/2.cc:
	New.
	* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
	2.cc: New.
 
	Backport from mainline
	2017-06-12  Pedro Alves  <palves@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Update C++17 constexpr
	char_traits status.
	* doc/html/*: Regenerate.
 
	* include/bits/char_traits.h (_GLIBCXX_ALWAYS_INLINE): Define if
	not already defined.
	(__cpp_lib_constexpr_char_traits): Uncomment.
	(__constant_string_p, __constant_char_array_p): New.
	(std::char_traits<char>, std::char_traits<wchar_t>): Add
	_GLIBCXX17_CONSTEXPR on compare, length and find and use
	__constant_string_p, __constant_char_array_p and
	__builtin_constant_p to defer to __gnu_cxx::char_traits at compile
	time.
 
	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions_c++17.cc: Uncomment
	__cpp_lib_constexpr_char_traits tests.  Uncomment
	test_compare<char>, test_length<char>, test_find<char>,
	test_compare<wchar_t>, test_length<wchar_t> and test_find<wchar_t>
	static_assert tests.
 
2017-09-04  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-08-31  Jonathan Wakely  <jwakely@redhat.com>
 
	PR c++/82039
	* include/ext/new_allocator.h (__gnu_cxx::new_allocator::allocate):
	Adjust null pointer constant to avoid warning.
 
	Backport from mainline
	2017-08-21  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81912
	* include/bits/stl_iterator_base_types.h (__iterator_category): Add
	constexpr for C++11 and later.
	* testsuite/24_iterators/container_access.cc: Add target selector.
	* testsuite/24_iterators/range_access.cc: Fix clause number in
	comment.
	* testsuite/24_iterators/range_access_cpp14.cc: Likewise.
	* testsuite/24_iterators/range_access_cpp17.cc: New.
 
	Backport from mainline
	2017-08-09  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/type_traits (_GLIBCXX_NO_BUILTIN_HAS_UNIQ_OBJ_REP):
	Replace with _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP and use
	__is_identifier to set it.
 
	Backport from mainline
	2017-08-09  Katsuhiko Nishimra  <ktns.87@gmail.com>
 
	* include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Use
	__is_identifier instead of __has_builtin.
 
	Backport from mainline
	2017-08-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81891
	* include/bits/hashtable.h (_Hashtable(_InputIterator, _InputIterator,
	size_type, const _H1&, const _H2&, const _Hash&, const _Equal&,
	const _ExtractKey&, const allocator_type&)): Let destructor do clean
	up if an exception is thrown.
	* testsuite/23_containers/unordered_map/cons/81891.cc: New.
 
	Backport from mainline
	2017-07-31  Marek Polacek  <polacek@redhat.com>
 
	PR libstdc++/81599
	* include/bits/stl_stack.h: Fix typo.
 
	Backport from mainline
	2017-07-10  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81338
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI] (basic_string):
	Declare basic_stringbuf to be a friend.
	* include/bits/sstream.tcc (basic_stringbuf::overflow)
	[_GLIBCXX_USE_CXX11_ABI]: Use unused capacity before reallocating.
	* include/std/sstream (basic_stringbuf::__xfer_bufptrs): Update string
	length to buffer length.
	* testsuite/27_io/basic_stringstream/assign/81338.cc: New.
 
2017-08-20  John David Anglin  <danglin@gcc.gnu.org>
 
	PR testsuite/81056
	* testsuite/17_intro/names.cc: Undef 'd' and 'r' on __hpux__.
 
2017-08-14  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-08-09  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79820
	PR libstdc++/81751
	* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
	Call fflush on the stream instead of calling sync() while _M_cfile is
	null. Restore original value of errno.
	* testsuite/ext/stdio_filebuf/char/79820.cc: New.
	* testsuite/ext/stdio_filebuf/char/81751.cc: New.
 
	Backport from mainline
	2017-07-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/53984
	* include/bits/basic_ios.h (basic_ios::_M_setstate): Adjust comment.
	* include/bits/istream.tcc (basic_istream::sentry): Handle exceptions
	during construction.
	* include/std/istream: Adjust comments for formatted input functions
	and unformatted input functions.
	* testsuite/27_io/basic_fstream/53984.cc: New.
	* testsuite/27_io/basic_istream/sentry/char/53984.cc: New.
 
2017-08-14  Release Manager
 
	* GCC 7.2.0 released.
 
2017-07-26  Richard Biener  <rguenther@suse.de>
 
	Backport from mainline
	2017-06-02  Richard Biener  <rguenther@suse.de>
		Markus Eisenmann  <meisenmann.lba@fh-salzburg.ac.at>
 
	PR libstdc++/80721
	* libsupc++/eh_alloc.cc (pool::free): Keep list properly
	sorted and add missing freelist item merging cases.
 
2017-07-25  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-06-09  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/intro.xml: Document LWG 2802, 2873 and 2942 changes.
	* include/bits/shared_ptr.h (shared_ptr): Use rvalues for deleters
	(LWG 2802).
	* include/bits/shared_ptr_base.h (_Sp_ebo_helper, _Sp_counted_deleter
	(_Sp_counted_deleter::_Impl, __shared_count, __shared_ptr): Likewise.
	* testsuite/20_util/shared_ptr/cons/lwg2802.cc: New.
 
	Backport from mainline
	2017-06-05  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/shared_ptr_base.h (__shared_ptr::owner_before)
	(__weak_ptr::owner_before, _Sp_owner_less::operator()): Add noexcept
	specifiers as per LWG 2873 and LWG 2942.
	* testsuite/20_util/owner_less/noexcept.cc: New.
	* testsuite/20_util/shared_ptr/observers/owner_before.cc: Test
	noexcept guarantees.
	* testsuite/20_util/weak_ptr/observers/owner_before.cc: Likewise.
 
	Backport from mainline
	2017-04-28  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80553
	* include/bits/stl_construct.h (_Destroy, _Destroy_n): Add static
	assertions to ensure type is destructible.
	(destroy_at, destroy, destroy_n): Move from stl_uninitialized.h.
	* include/bits/stl_uninitialized.h (destroy_at, destroy, destroy_n):
	Move to stl_construct.h.
	* testsuite/20_util/specialized_algorithms/memory_management_tools/
	destroy_neg.cc: New test.
	* testsuite/23_containers/vector/cons/destructible_neg.cc: New test.
 
	Backport from mainline
	2017-05-16  Jonathan Wakely  <jwakely@redhat.com>
 
	* configure: Regenerate.
	* doc/xml/manual/status_cxx2017.xml: Update status table.
	* doc/html/*: Regenerate.
	* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/experimental/source_location: New header implementing N4519.
	* testsuite/experimental/source_location/1.cc: New test.
 
	Backport from mainline
	2017-07-06  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/uses_allocator.h (__use_alloc(const _Alloc&&)): Add
	deleted overload to prevent dangling references to rvalues.
	* include/experimental/memory_resource
	(polymorphic_allocator::construct): Do not call __use_alloc with
	rvalue arguments.
 
	Backport from mainline
	2017-06-08  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81017
	* include/bits/std_function.h (function::function(function&&))
	(function::operator=(funtion&&)): Add noexcept.
	* testsuite/20_util/function/assign/move.cc: Check for noexcept.
	* testsuite/20_util/function/cons/move.cc: Likewise.
 
	Backport from mainline
	2017-07-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/mutex (scoped_lock): Reorder std::adopt_lock_t parameter
	as per P0739R0.
	* testsuite/30_threads/scoped_lock/cons/1.cc: Reorder arguments.
	* testsuite/30_threads/scoped_lock/cons/deduction.cc: Test deduction
	with std::adopt_lock_t.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Check
	feature-test macro.
 
	Backport from mainline
	2017-07-14  Jason Merrill  <jason@redhat.com>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (variant::variant(_Tp&&)): Constrain to remove
	the constructor for empty variants from the candidate functions
	during class template argument deduction.
	* testsuite/20_util/variant/deduction.cc: New.
 
	Backport from mainline
	2017-06-02  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80939
	* include/std/variant (__erased_ctor, __erased_assign, __erased_swap)
	(__erased_hash): Remove constexpr specifier and qualify calls to
	__ref_cast.
	(__erased_dtor): Remove constexpr specifier and use _Destroy.
 
	Backport from mainline
	2017-05-20  Tim Shen  <timshen@google.com>
 
	PR libstdc++/80737
	* include/std/variant(variant::variant): SFINAE on is_same first.
	* testsuite/20_util/variant/any.cc: test case.
 
2017-07-11  Jonathan Wakely  <jwakely@redhat.com>
 
	Backport from mainline
	2017-04-21  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80316
	* include/std/future (_State_baseV2::_Setter::operator()): Remove
	_S_check calls that are done after the pointer to the shared state is
	already dereferenced.
	(_State_baseV2::_Setter<_Res, void>): Define specialization for void
	as partial specialization so it can be defined within the definition
	of _State_baseV2.
	(_State_baseV2::__setter): Call _S_check.
	(_State_baseV2::__setter(promise<void>*)): Add overload for use by
	promise<void>::set_value and promise<void>::set_value_at_thread_exit.
	(promise<T>, promise<T&>, promise<void>): Make _State a friend.
	(_State_baseV2::_Setter<void, void>): Remove explicit specialization.
	(promise<void>::set_value, promise<void>::set_value_at_thread_exit):
	Use new __setter overload.
	* testsuite/30_threads/promise/members/at_thread_exit2.cc: New test.
	* testsuite/30_threads/promise/members/set_exception.cc: Test
	promise<T&> and promise<void> specializations.
	* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
	Test for no_state error condition.
	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
 
2017-06-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81221
	* include/bits/stl_algo.h (sample): Qualify with _GLIBCXX_STD_A not
	std.
	* testsuite/25_algorithms/sample/81221.cc: New.
 
2017-06-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Backport from mainline
	2017-06-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	PR libstdc++/80675
	PR libstdc++/80940
	* include/std/istream:
	(__is_convertible_to_basic_istream_test(basic_istream<_Ch, _Up>*)): New.
	(__do_is_convertible_to_basic_istream_impl): Likewise.
	(__is_convertible_to_basic_istream_impl): Likewise.
	(__is_convertible_to_basic_istream): Use the new base.
	(__rvalue_istream_type): New.
	(operator>>(_Istream&&, _Tp&&)): Use the new helper alias
	for the SFINAE check, convert to the helper alias type before
	doing the actual extraction.
	* include/std/ostream:
	(__is_convertible_to_basic_ostream_test(basic_ostream<_Ch, _Up>*)): New.
	(__do_is_convertible_to_basic_ostream_impl): Likewise.
	(__is_convertible_to_basic_ostream_impl): Likewise.
	(__is_convertible_to_basic_ostream): Use the new base.
	(__rvalue_ostream_type): New.
	(operator<<(_Ostream&&, const _Tp&)): Use the new helper alias
	for the SFINAE check, convert to the helper alias type before
	doing the actual insertion.
	* testsuite/27_io/rvalue_streams-2.cc: Add new tests.
 
2017-06-21  Uros Bizjak  <ubizjak@gmail.com>
 
	* config/abi/post/alpha-linux-gnu/baseline_symbols.txt: Update.
 
2017-06-21  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81092
	* configure: Regenerate.
 
2017-06-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
	* config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate.
	* config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise.
	* config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise.
	* config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise.
	* config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise.
	* config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt:
	Likewise.
	* config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise.
	* config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt:
	Likewise.
 
2017-06-18  H.J. Lu  <hongjiu.lu@intel.com>
 
	PR libstdc++/81092
	* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
 
2017-06-16  Jakub Jelinek  <jakub@redhat.com>
 
	PR libstdc++/81092
	* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 
2017-06-16  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/locale_conv.h (wbuffer_convert::sync): Fix condition.
	* testsuite/22_locale/conversions/buffer/2.cc: New.
 
	* doc/xml/manual/appendix_contributing.xml: Link to the list of bad
	names, and link to the test docs and note higher DejaGnu version
	requirement.
	* doc/xml/manual/allocator.xml: Fix ViewCVS URLs.
	* doc/xml/manual/mt_allocator.xml: Likewise.
	* doc/xml/manual/test.xml: Correct instructions on running tests.
	* doc/html/*: Regenerate.
 
	PR libstdc++/81092
	* acinclude.m4: Bump libtool_VERSION.
	* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
	* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
	* config/abi/pre/gnu.ver: Add wstring constructor symbols to new
	GLIBCXX_3.4.24 version.
	* doc/xml/manual/abi.xml: Document new versions.
	* doc/html/*: Regenerate.
	* testsuite/21_strings/basic_string/cons/char/8.cc: Use base object
	constructors to ensure required symbols are exported.
	* testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
	* testsuite/util/testsuite_abi.cc: Add new version.
 
	* include/bits/locale_conv.h (wbuffer_convert::_M_put): Add missing
	return statement.
	* testsuite/21_strings/basic_string_view/operations/copy/char/1.cc:
	Return void.
	* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/1.cc:
	Likewise.
	* testsuite/23_containers/map/modifiers/insert_or_assign/1.cc: Add
	missing return statements.
	* testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
	Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/12.cc:
	Return void.
	* testsuite/special_functions/14_expint/pr68397.cc: Likewise.
 
2017-06-07  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/81002
	* include/bits/regex_compiler.h (__compile_nfa): Add template argument
	list to specify traits type.
	* testsuite/28_regex/basic_regex/ctors/basic/iter.cc: New.
 
2017-05-19  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80796
	* include/bits/stl_algo.h (search): Add new overload for C++17.
	* testsuite/25_algorithms/search/searcher.cc: New.
 
2017-05-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80478
	* include/std/functional (_Mem_fn_traits_base): Add specializations
	for noexcept member function types.
	* testsuite/20_util/function_objects/mem_fn/80478.cc: New test.
 
2017-05-18  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/policy_data_structures.xml: Fix typo.
	* doc/xml/manual/test_policy_data_structures.xml: Likewise.
	* doc/html/*: Regenerate.
 
	* doc/xml/manual/abi.xml: Document latest library versions.
	* doc/xml/manual/build_hacking.xml: Document requirement to update
	abi.xml when bumping library versions.
	* doc/html/*: Regenerate.
 
2017-05-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80761
	* include/bits/node_handle.h (_Node_insert_return): Reorder members.
	(tuple_size, tuple_element): Remove partial specializations.
	* include/bits/stl_tree.h (_Rb_tree::insert_return_type): Use
	const_iterator for std::set.
	* testsuite/23_containers/map/modifiers/extract.cc: New.
	* testsuite/23_containers/set/modifiers/extract.cc: New.
	* testsuite/23_containers/unordered_map/modifiers/extract.cc: New.
	* testsuite/23_containers/unordered_set/modifiers/extract.cc: New.
 
2017-05-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78939
	* include/std/utility (tuple_size<cv T>) [__cplusplus > 201402L]:
	Only define partial specializations when tuple_size<T>::value is
	valid.
	* testsuite/20_util/tuple/78939.cc: New.
 
2017-05-02  Release Manager
 
	* GCC 7.1.0 released.
 
2017-04-19  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/abi.xml: Rephrase one of the references to the
	Itanium C++ ABI.
	* doc/xml/manual/test.xml: Document DejaGnu 1.5.3 requirement.
	* doc/html/*: Regenerate.
 
	* libsupc++/new: Update comment on #endif directive.
 
	PR libstdc++/80448
	* include/experimental/bits/fs_dir.h (directory_iterator)
	(recursive_directory_iterator): Remove noexcept from defaulted
	constructors.
 
	PR libstdc++/80446
	* include/std/type_traits (is_aggregate): Change __has_builtin checks.
	* libsupc++/new (launder): Likewise.
 
2017-04-18  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/functional (default_searcher, __boyer_moore_array_base)
	(__is_std_equal_to, __boyer_moore_base_t, boyer_moore_searcher)
	(boyer_moore_horspool_searcher): Remove redundant namespace
	qualification.
	(default_searcher::operator()): Construct return value early and
	advance second member in-place.
	(boyer_moore_horspool_searcher::operator()): Increment random access
	iterator directly instead of using std::next.
	(boyer_moore_searcher::operator()): Fix return value.
	* testsuite/20_util/function_objects/searchers.cc: Check both parts
	of return values.
 
2017-04-12  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/faq.xml: Update reference link to C++ ABI for Itanium.
	* doc/xml/manual/abi.xml. Ditto (thrice).
 
2017-04-03  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Remove duplicate table entry.
	* doc/html/*: Regenerate.
 
	* testsuite/20_util/reference_wrapper/invoke.cc: Uncomment tests
	that no longer fail.
 
	* include/bits/ios_base.h: Correct comment.
	* testsuite/util/testsuite_hooks.h: Likewise.
 
	* doc/xml/manual/status_cxx2017.xml: Update C++17 status table.
	* doc/xml/manual/appendix_contributing.xml (contrib.organization): Add
	directories for debug, parallel and profile headers.
	* doc/html/*: Regenerate.
 
	* include/bits/char_traits.h (__gnu_cxx::char_traits): Add
	_GLIBCXX14_CONSTEXPR on assign, compare, find, and length.
	(std::char_traits<char>, std::char_traits<wchar_t>): Add
	_GLIBCXX17_CONSTEXPR on assign.
	(std::char_traits<char16_t>, std::char_traits<char32_t>): Add
	_GLIBCXX17_CONSTEXPR on assign, compare, find, and length.
	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions_c++17.cc: New test.
 
2017-04-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	PR libstdc++/79141
	* include/bits/stl_pair.h (__nonesuch_no_braces): New.
	(operator=(typename conditional<
	__and_<is_copy_assignable<_T1>,
	is_copy_assignable<_T2>>::value,
	const pair&, const __nonesuch&>::type)): Change __nonesuch
	to __nonesuch_no_braces.
	(operator=(typename conditional<
	__not_<__and_<is_copy_assignable<_T1>,
	is_copy_assignable<_T2>>>::value,
	const pair&, const __nonesuch&>::type)): Likewise.
	(operator=(typename conditional<
	__and_<is_move_assignable<_T1>,
	is_move_assignable<_T2>>::value,
	pair&&, __nonesuch&&>::type)): Likewise.
	* testsuite/20_util/pair/79141.cc: New.
 
2017-04-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement std::is_aggregate.
	* include/std/type_traits (is_aggregate, is_aggregate_v): New.
	* testsuite/20_util/is_aggregate/requirements/explicit_instantiation.cc:
	New.
	* testsuite/20_util/is_aggregate/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_aggregate/value.cc: Likewise.
 
2017-03-29  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Adjust optional's pretty printer for LWG 2900.
	* python/libstdcxx/v6/printers.py (StdExpOptionalPrinter.__init__):
	Look at the nested payload in case of non-experimental optional.
 
2017-03-29  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement LWG 2900, The copy and move constructors
	of optional are not constexpr.
	* include/std/optional (_Optional_payload): New.
	(_Optional_base): Remove the bool parameter.
	(_Optional_base<_Tp, false>): Remove.
	(_Optional_base()): Adjust.
	(_Optional_base(nullopt_t)): Likewise.
	(_Optional_base(in_place_t, _Args&&...)): Likewise.
	(_Optional_base(in_place_t, initializer_list<_Up>, _Args&&...)):
	Likewise.
	(_Optional_base(const _Optional_base&)): Likewise.
	(_Optional_base(_Optional_base&&)): Likewise.
	(operator=(const _Optional_base&)): Likewise.
	(operator=(_Optional_base&&)): Likewise.
	(~_Optional_base()): Remove.
	(_M_is_engaged()): Adjust.
	(_M_get()): Likewise.
	(_M_construct(_Args&&...)): Likewise.
	(_M_destruct()): Likewise.
	(_M_reset()): Likewise.
	(_Optional_base::_Empty_byte): Remove.
	(_Optional_base::_M_empty): Remove.
	(_Optional_base::_M_payload): Adjust.
	* testsuite/20_util/optional/cons/value_neg.cc: Adjust.
	* testsuite/20_util/optional/constexpr/cons/value.cc: Add tests.
 
2017-03-28  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/80137
	* include/bits/random.tcc (generate_canonical): Use std::nextafter
	or numeric_limits::epsilon() to reduce out-of-range values.
	* testsuite/26_numerics/random/uniform_real_distribution/operators/
	64351.cc: Verify complexity requirement is met.
 
	* doc/xml/manual/abi.xml: Add xml:id anchor.
	* doc/xml/manual/using.xml (manual.intro.using.macros): Document
	_GLIBCXX_RELEASE. Link to new anchor for __GLIBCXX__ notes.
	(concurrency.io.structure): Add markup.
	* doc/html/*: Regenerate.
 
	PR libstdc++/80229
	* include/bits/shared_ptr_base.h
	(__shared_ptr::_M_enable_shared_from_this_with): Change parameters to
	non-const and then use remove_cv to get unqualified type.
	* testsuite/20_util/enable_shared_from_this/members/const.cc: Don't
	cast away constness on object created const.
	* testsuite/20_util/shared_ptr/cons/80229.cc: New test.
 
2017-03-26  Markus Trippelsdorf  <markus@trippelsdorf.de>
 
	PR libstdc++/80183
	* include/bits/stl_tree.h:
	(_Rb_tree_header::_M_move_data(_Rb_tree_header&)): Also save _M_color.
 
2017-03-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/23_containers/array/tuple_interface/
	tuple_element_debug_neg.cc: Adjust dg-error.
	* testsuite/23_containers/list/operations/78389.cc: Fix less-than to
	define a valid strict weak ordering.
	* testsuite/23_containers/priority_queue/67085.cc: Disable test for
	Debug Mode, due to debug checks making extra copies of predicate.
	* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
	Likewise.
 
	* doc/xml/faq.xml: Add link.
	* doc/xml/manual/backwards_compatibility.xml: Remove outdated
	information on pre-ISO headers. Replace broken link to C++ FAQ Lite.
	* doc/xml/manual/io.xml: Update broken link.
	* doc/html/*: Regenerate.
 
2017-03-23  Daniel Kruegler  <daniel.kruegler@gmail.com>
 
	Implement LWG 2686, Why is std::hash specialized for error_code,
	but not error_condition?
	* include/std/system_error (hash<error_condition>): Define for C++17.
	* testsuite/20_util/hash/operators/size_t.cc (hash<error_condition>):
	Instantiate test for error_condition.
	* testsuite/20_util/hash/requirements/explicit_instantiation.cc
	(hash<error_condition>): Instantiate hash<error_condition>.
 
	* include/bits/c++config (_GLIBCXX17_INLINE): Define.
	* include/bits/regex_constants.h (All std::regex_constants constants):
	Add _GLIBCXX17_INLINE as per P0607R0.
	* include/bits/std_mutex.h (defer_lock, try_to_lock, adopt_lock):
	Likewise.
	* include/bits/stl_pair.h (piecewise_construct): Likewise.
	* include/bits/uses_allocator.h (allocator_arg, uses_allocator_v)
	(__is_uses_allocator_constructible_v)
	(__is_nothrow_uses_allocator_constructible_v): Likewise.
	* include/std/chrono (treat_as_floating_point_v): Likewise.
	* include/std/functional (is_bind_expression_v, is_placeholder_v):
	Likewise.
	* include/std/optional (nullopt): Likewise.
	* include/std/ratio (ratio_equal_v, ratio_not_equal_v, ratio_less_v)
	ratio_less_equal_v, ratio_greater_v, ratio_greater_equal_v): Likewise.
	* include/std/system_error (is_error_code_enum_v)
	(is_error_condition_enum_v): Likewise.
	* include/std/tuple (tuple_size_v, ignore): Likewise.
	(ignore): Declare ignore constexpr as per LWG 2773, declare assignment
	constexpr as per LWG 2933.
	* include/std/type_traits (All variable templates): Add
	_GLIBCXX17_INLINE as per P0607R0.
	* include/std/variant (variant_size_v, variant_npos, __index_of_v)
	(__tuple_count_v, __exactly_once): Likewise.
	* testsuite/18_support/headers/new/synopsis.cc
	(hardware_destructive_interference_size)
	(hardware_constructive_interference_size): Likewise for commented-out
	variables.
	* testsuite/20_util/tuple/creation_functions/constexpr.cc: Add new
	test function for constexpr std::ignore (LWG 2773).
	* testsuite/20_util/tuple/creation_functions/constexpr_cpp14.cc: New
	test for LWG 2933.
 
2017-03-22  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/shared_ptr.h (shared_ptr, weak_ptr): Add deduction
	guides for C++17.
	* include/bits/std_function.h (function): Likewise.
	* include/bits/stl_pair.h (pair): Likewise.
	* include/debug/array (__gnu_debug::array): Likewise.
	* include/std/array (array): Likewise.
	* include/std/functional (make_default_searcher)
	(make_boyer_moore_searcher, make_boyer_moore_horspool_searcher):
	Remove generator functions.
	* include/std/tuple (tuple): Add deduction guides.
	* include/std/valarray (valarray): Likewise.
	* testsuite/20_util/function_objects/searchers.cc: Adjust to use
	class template argument deduction instead of generator functions.
	* testsuite/20_util/function/cons/deduction.cc: New test.
	* testsuite/20_util/optional/cons/deduction_guide.cc: Rename to ...
	* testsuite/20_util/optional/cons/deduction.cc: ... here.
	* testsuite/20_util/pair/cons/deduction.cc: New test.
	* testsuite/20_util/shared_ptr/cons/deduction.cc: New test.
	* testsuite/20_util/tuple/cons/deduction.cc: New test.
	* testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error.
	* testsuite/20_util/unique_ptr/cons/deduction_neg.cc: New test.
	* testsuite/20_util/weak_ptr/cons/deduction.cc: New test.
	* testsuite/23_containers/array/cons/deduction.cc: New test.
	* testsuite/23_containers/array/cons/deduction_neg.cc: New test.
	* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
	Adjust dg-error.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Likewise.
	* testsuite/26_numerics/valarray/deduction.cc: New test.
	* testsuite/30_threads/lock_guard/cons/deduction.cc: New test.
	* testsuite/30_threads/scoped_lock/cons/deduction.cc: New test.
	* testsuite/30_threads/unique_lock/cons/deduction.cc: New test.
 
2017-03-20  François Dumont  <fdumont@gcc.gnu.org>
 
	* include/bits/stl_deque.h (deque): Access allocator value_type only if
	concept checks are enabled.
	* include/bits/stl_stack.h (stack): Likewise.
	* include/bits/stl_vector.h (vector): Likewise.
	* include/bits/stl_list.h (list): Likewise and check
	_SGIAssignableConcept only in C++03.
	* include/bits/stl_map.h (map): Likewise.
	* include/bits/stl_set.h (set): Likewise.
	* include/bits/stl_multimap.h (multimap): Likewise.
	* include/bits/stl_multiset.h (multiset): Likewise.
	* include/bits/stl_queue.h (queue, priority_queue): Likewise.
 
2017-03-18  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/appendix_contributing.xml: Convert link to
	ansi.org to https.
	Update link to the C++ standard at ansi.org.
 
	* doc/xml/faq.xml: Remove information redundant with the above;
	instead add a reference.
 
2017-03-17  Jonathan Wakely  <jwakely@redhat.com>
 
	* src/c++11/codecvt.cc (range): Add non-type template parameter and
	define oerloaded operators for reading and writing code units.
	(range<Elem, false>): Define partial specialization for accessing
	wide characters in potentially unaligned byte ranges.
	(ucs2_span(const char16_t*, const char16_t*, ...))
	(ucs4_span(const char16_t*, const char16_t*, ...)): Change parameters
	to range<const char16_t, false> in order to avoid unaligned reads.
	(__codecvt_utf16_base<char16_t>::do_out)
	(__codecvt_utf16_base<char32_t>::do_out)
	(__codecvt_utf16_base<wchar_t>::do_out): Use range specialization for
	unaligned data to avoid unaligned writes.
	(__codecvt_utf16_base<char16_t>::do_in)
	(__codecvt_utf16_base<char32_t>::do_in)
	(__codecvt_utf16_base<wchar_t>::do_in): Likewise for writes. Return
	error if there are unprocessable trailing bytes.
	(__codecvt_utf16_base<char16_t>::do_length)
	(__codecvt_utf16_base<char32_t>::do_length)
	(__codecvt_utf16_base<wchar_t>::do_length): Pass arguments of type
	range<const char16_t, false> to span functions.
	* testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc: New test.
 
2017-03-16  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79980
	* src/c++11/codecvt.cc (to_integer(codecvt_mode)): Fix target type.
 
	PR libstdc++/80041
	* src/c++11/codecvt.cc (__codecvt_utf16_base<wchar_t>::do_out)
	(__codecvt_utf16_base<wchar_t>::do_in): Convert char arguments to
	char16_t to work with UTF-16 instead of UTF-8.
	* testsuite/22_locale/codecvt/codecvt_utf16/80041.cc: New test.
 
	* src/c++11/codecvt.cc (codecvt<char16_t, char, mbstate_t>)
	(codecvt<char32_t, char, mbstate_t>, __codecvt_utf8_base<char16_t>)
	(__codecvt_utf8_base<char32_t>, __codecvt_utf8_base<wchar_t>)
	(__codecvt_utf16_base<char16_t>, __codecvt_utf16_base<char32_t>)
	(__codecvt_utf16_base<wchar_t>, __codecvt_utf8_utf16_base<char16_t>)
	(__codecvt_utf8_utf16_base<char32_t>)
	(__codecvt_utf8_utf16_base<wchar_t>): Fix do_encoding() and
	do_max_length() return values.
	* testsuite/22_locale/codecvt/codecvt_utf16/members.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8/members.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc: New test.
 
	PR libstdc++/79980
	* include/bits/locale_conv.h (__do_str_codecvt): Set __count on
	error path.
	* src/c++11/codecvt.cc (operator&=, operator|=, operator~): Overloads
	for manipulating codecvt_mode values.
	(read_utf16_bom): Compare input to BOM constants instead of integral
	constants that depend on endianness.  Take mode parameter by
	reference and adjust it, to distinguish between no BOM present and
	UTF-16BE BOM present.
	(ucs4_in, ucs2_span, ucs4_span): Adjust calls to read_utf16_bom.
	(surrogates): New enumeration type.
	(utf16_in, utf16_out): Add surrogates parameter to choose between
	UTF-16 and UCS2 behaviour.
	(utf16_span, ucs2_span): Use std::min not std::max.
	(ucs2_out): Use std::min not std::max.  Disallow surrogate pairs.
	(ucs2_in): Likewise. Adjust calls to read_utf16_bom.
	* testsuite/22_locale/codecvt/codecvt_utf16/79980.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: New test.
 
	PR libstdc++/79511
	* src/c++11/codecvt.cc (write_utf16_code_point): Don't write 0xffff
	as a surrogate pair.
	(__codecvt_utf8_utf16_base<char32_t>::do_in): Use native endianness
	for internal representation.
	(__codecvt_utf8_utf16_base<wchar_t>::do_in): Likewise.
	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc: New test.
 
	PR libstdc++/80064
	* include/bits/stl_heap.h (__is_heap, push_heap, __adjust_heap)
	(pop_heap, make_heap, sort_heap, is_heap_until, is_heap): Cope with
	invalid instantiations using function types for _Compare argument.
	* testsuite/25_algorithms/make_heap/80064.cc: New test.
 
	PR libstdc++/67440
	* python/libstdcxx/v6/printers.py (find_type): Avoid gdb.Type.name
	for GDB 7.6 compatibility, use gdb.Type.unqualified instead.
 
2017-03-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement LWG 2857, {variant,optional,any}::emplace should
	return the constructed value.
	* include/std/any (emplace(_Args&&...)): Change the return type and
	return a reference to the constructed value.
	(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
	* include/std/optional (emplace(_Args&&...)): Likewise.
	(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
	* include/std/variant (emplace<_Tp>(_Args&&...)): Likewise.
	(emplace<_Tp>(initializer_list<_Up>, _Args&&...)): Likewise.
	(emplace<_Np>(_Args&&...)): Likewise.
	(emplace<_Np>(initializer_list<_Up>, _Args&&...)): Likewise.
	* testsuite/20_util/any/assign/emplace.cc: Add tests for
	checking the return value of emplace.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
	* testsuite/20_util/optional/assignment/6.cc: Add tests for
	checking the return value of emplace.
	* testsuite/20_util/variant/run.cc: Likewise.
 
2017-03-15  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>
 
	PR libstdc++/62045
	* include/ext/pb_ds/qdetail/binary_heap_/binary_heap_.hpp
	(is_heap): Remove.
	(push_heap): Remove the wrong checking using is_heap.
	(make_heap): Remove the assertion using is_heap.
	* include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
	(modify): Ditto.
	(resize_for_insert_if_needed): Add PB_DS_ASSERT_VALID after
	calling make_heap.
 
2017-03-15  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/62045
	* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
	New test.
	* testsuite/ext/pb_ds/regression/priority_queues.cc: Fix copy&paste
	error in comment.
 
2017-03-15  Jonathan Wakely  <jwakely@redhat.com>
 
	* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in
	comment.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
 
2017-03-14  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79162
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Replace
	with a constrained template.
	[!_GLIBCXX_USE_CXX11_ABI]
	(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Likewise.
	* testsuite/21_strings/basic_string/cons/char/79162.cc: New test.
	* testsuite/21_strings/basic_string/cons/wchar_t/79162.cc: New test.
 
2017-03-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	PR libstdc++/80034
	* include/bits/list.tcc (merge(list&&)): Use const for the size_t
	in the catch-block.
	(merge(list&&, _StrictWeakOrdering)): Likewise.
	* testsuite/23_containers/list/operations/80034.cc: New.
 
2017-03-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement LWG 2806, Base class of bad_optional_access.
	* include/std/optional (bad_optional_access):
	Derive from std::exception.
	(bad_optional_access::bad_optional_access): Adjust.
	(bad_optional_access::what): New.
	(__throw_bad_optional_access(const char*)):
	Remove the parameter and adjust calls.
	* testsuite/20_util/optional/cons/value_neg.cc: Adjust.
	* testsuite/20_util/optional/typedefs.cc: Likewise.
 
2017-03-12  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement LWG 2934, optional<const T> doesn't compare with T.
	* include/std/optional
	(operator==(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator==(const optional<_Tp>&, const optional<_Up>&).
	(operator!=(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator!=(const optional<_Tp>&, const optional<_Up>&).
	(operator<(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator<(const optional<_Tp>&, const optional<_Up>&.
	(operator>(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator>(const optional<_Tp>&, const optional<_Up>&.
	(operator<=(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator<=(const optional<_Tp>&, const optional<_Up>&).
	(operator>=(const optional<_Tp>&, const optional<_Tp>&)):
	Turn into operator>=(const optional<_Tp>&, const optional<_Up>&).
	(operator==(const optional<_Tp>&, const _Tp&)):
	Turn into operator==(const optional<_Tp>&, const _Up&).
	(operator==(const _Tp&, const optional<_Tp>&)):
	Turn into operator==(const _Up&, const optional<_Tp>&).
	(operator!=(const optional<_Tp>&, const _Tp&)):
	Turn into operator!=(const optional<_Tp>&, const _Up&).
	(operator!=(const _Tp&, const optional<_Tp>&)):
	Turn into operator!=(const _Up&, const optional<_Tp>&).
	(operator<(const optional<_Tp>&, const _Tp&)):
	Turn into operator<(const optional<_Tp>&, const _Up&).
	(operator<(const _Tp&, const optional<_Tp>&)):
	Turn into operator<(const _Up&, const optional<_Tp>&).
	(operator>(const optional<_Tp>&, const _Tp&)):
	Turn into operator>(const optional<_Tp>&, const _Up&).
	(operator>(const _Tp&, const optional<_Tp>&)):
	Turn into operator>(const _Up&, const optional<_Tp>&).
	(operator<=(const optional<_Tp>&, const _Tp&)):
	Turn into operator<=(const optional<_Tp>&, const _Up&).
	(operator<=(const _Tp&, const optional<_Tp>&)):
	Turn into operator<=(const _Up&, const optional<_Tp>&).
	(operator>=(const optional<_Tp>&, const _Tp&)):
	Turn into operator>=(const optional<_Tp>&, const _Up&).
	(operator>=(const _Tp&, const optional<_Tp>&)):
	Turn into operator>=(const _Up&, const optional<_Tp>&).
	* testsuite/20_util/optional/relops/7.cc: New.
 
2017-03-10  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/17_intro/names.cc: Undefine macros that clash with
	identifiers in AIX system headers.
 
	* include/bits/invoke.h (__invoke): Use __invoke_result instead of
	result_of, and __is_nothrow_invocable instead of
	__is_nothrow_callable.
	* include/bits/shared_ptr_base.h (__shared_ptr): Use __is_invocable
	instead of __is_callable.
	* include/std/functional (invoke): use invoke_result_t instead of
	result_of_t and is_nothrow_invocable instead of is_nothrow_callable.
	(_Not_fn): Use __invoke_result instead of result_of.
	* include/std/type_traits (__result_of_memobj, __result_of_memfun):
	Remove partial specializations for reference_wrapper types.
	(__result_of_impl): Use __inv_unwrap to strip reference_wrapper.
	(__invoke_result): Define replacement for result_of and then use it to
	define result_of.
	(__is_callable_impl, __is_callable, __is_nothrow_callable): Replace
	with __is_invocable_impl, __is_invocable, and __is_nothrow_invocable
	respectively.
	(invoke_result, invoke_result_t): Define for C++17.
	(is_callable, is_nothrow_callable): Replace with is_invocable,
	is_invocable_r, is_nothrow_invocable, and is_nothrow_invocable_r.
	(is_callable_v, is_nothrow_callable_v): Replace with is_invocable_v,
	is_invocable_r_v, is_nothrow_invocable_v, and is_nothrow_invocable_r_v.
	* include/std/variant (hash<variant<T...>>): Use is_nothrow_invocable_v
	instead of is_nothrow_callable_v.
	* testsuite/20_util/function_objects/invoke/59768.cc: Remove unused
	main function.
	* testsuite/20_util/function_objects/not_fn/1.cc: Use is_invocable
	instead of is_callable.
	* testsuite/20_util/is_callable/*: Rename directory and adjust tests
	to use new traits.
	* testsuite/20_util/is_nothrow_callable/*: Likewise.
	* testsuite/20_util/optional/hash.cc: Use is_invocable_v instead of
	is_callable.
	* testsuite/20_util/variant/hash.cc: Likewise.
 
2017-03-10  George Lander  <george.lander@arm.com>
 
	* acinclude.m4 (glibcxx_cv_obsolete_isnan): Define
	_GLIBCXX_INCLUDE_NEXT_C_HEADERS before including math.h.
	* configure: Regenerate.
 
2017-03-09  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/functional (_Not_fn): Define macro to simplify
	repetitive function definitions.
 
	* doc/xml/manual/status_cxx2017.xml: Document std::byte support.
	* include/c_global/cstddef (std::byte): Define for C++17.
	* testsuite/18_support/byte/global_neg.cc: New test.
	* testsuite/18_support/byte/ops.cc: New test.
	* testsuite/18_support/byte/requirements.cc: New test.
 
2017-03-05  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/status_cxx2017.xml: Document P0156R2 status.
	* doc/html/*: Regenerate.
	* include/std/mutex (scoped_lock): Implement new C++17 template.
	* testsuite/30_threads/scoped_lock/cons/1.cc: New test.
	* testsuite/30_threads/scoped_lock/requirements/
	explicit_instantiation.cc: New test.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: New test.
 
2017-03-02  Gerald Pfeifer  <gerald@pfeifer.com>
	    François Dumont  <frs.dumont@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/debug_mode.xml: Update and simplify note
	on link- and run-time coexistence.
 
2017-03-02  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/17_intro/headers/names.cc: Rename to ...
	* testsuite/17_intro/names.cc: ... here.
 
	PR libstdc++/79789
	* include/bits/hashtable_policy.h (__clp2): Use reserved names for
	parameters and local variables.
	* include/bits/ios_base.h (make_error_code, make_error_condition):
	Likewise.
	* include/bits/list.tcc (list::sort): Likewise.
	* include/bits/mask_array.h (mask_array): Likewise.
	* include/bits/regex.h (regex_token_iterator): Likewise.
	* include/bits/slice_array.h (slice_array): Likewise.
	* include/bits/stl_algo.h (__sample): Likewise.
	* include/std/memory (undeclare_no_pointers): Likewise.
	* include/std/type_traits (is_callable_v, is_nothrow_callable_v):
	Likewise.
	* libsupc++/exception_ptr.h (__dest_thunk): Likewise.
	* testsuite/17_intro/headers/names.cc: New test.
 
	PR libstdc++/79798
	* include/std/functional (bind::_Res_type_impl): Fix incorrect use of
	result_of that loses top-level cv-qualifiers.
	* testsuite/20_util/bind/79798.cc: New test.
 
2017-03-01  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/documentation_hacking.xml: Tweak link to
	doxygen.org.
 
2017-02-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/experimental/iterator: Include <iterator>.
	* testsuite/experimental/iterator/requirements.cc: Check for contents
	of <iterator>.
 
2017-02-19  Dinka Ranns  <dinka.ranns@googlemail.com>
 
	C++17 GB50 resolution
	* include/std/chrono (duration::operator++()): Add
	_GLIBCXX17_CONSTEXPR.
	(duration::operator++(int)): Likewise.
	(duration::operator--()): Likewise.
	(duration::operator--(int)): Likewise.
	(duration::operator+=(const duration&)): Likewise.
	(duration::operator-=(const duration&)): Likewise.
	(duration::operator*=(const rep&)): Likewise.
	(duration::operator/=(const rep&)): Likewise.
	(duration::operator%=(const rep&)): Likewise.
	(duration::operator%=(const duration&)): Likewise.
	(time_point::operator+=(const duration&)): Likewise.
	(time_point::operator-=(const duration&)): Likewise.
	* testsuite/20_util/duration/arithmetic/constexpr_c++17.cc: New test.
	* testsuite/20_util/duration/literals/range.cc: Adjust dg-error.
	* testsuite/20_util/time_point/arithmetic/constexpr.cc: New test.
 
2017-02-19  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/debug.xml: Adjust link to ThreadSanitizer.
 
2017-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/io.xml: Update link to groups.google.com.
	Tweak link description.
 
2017-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/profile_mode.xml: Fix link.
 
2017-02-16  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/policy_data_structures.xml: Simplify and
	standardize references to boost.org.
	* doc/xml/manual/policy_data_structures_biblio.xml: Ditto.
	* doc/xml/manual/shared_ptr.xml: Ditto.
 
2017-02-16  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/60936
	* src/c++11/snprintf_lite.cc (__concat_size_t): Calculate length
	written to buffer, not length remaining in buffer.
 
2017-02-15  Tim Shen  <timshen@google.com>
 
	PR libstdc++/78723
	* include/std/variant (operator<(), operator>(), operator<=(),
	operator>=(), operator==(), operator!=()): Implement P0393R3.
	* testsuite/20_util/variant/compile.cc: Adjust tests.
	* testsuite/20_util/variant/run.cc: Adjust tests.
 
2017-02-15  Tim Shen  <timshen@google.com>
 
	PR libstdc++/79513
	* include/std/variant (visit()): Forward variant types to the return
	type detection code.
	* testsuite/20_util/variant/compile.cc: Add test cases.
 
2017-02-13  H.J. Lu  <hongjiu.lu@intel.com>
 
	PR libstdc++/79348
	* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
 
2017-02-13  Jakub Jelinek  <jakub@redhat.com>
 
	PR libstdc++/79348
	* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
	* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Likewise.
	* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Likewise.
	* config/abi/post/s390-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Likewise.
 
2017-02-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79486
	* include/std/future (__future_base::_Task_state::_M_run)
	(__future_base::_Task_state::_M_run_delayed): Use lvalue types in
	result_of expressions.
	* testsuite/30_threads/packaged_task/79486.cc: New.
 
2017-02-11  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79467
	* include/bits/shared_ptr_base.h (__shared_ptr(_Yp*, _Deleter))
	(__shared_ptr(_Yp*, _Deleter, _Alloc)): Use lvalue types in
	__is_callable check.
	* testsuite/20_util/shared_ptr/cons/79467.cc: New.
 
	* include/bits/atomic_base.h: Re-indent.
 
2017-02-10  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/profile_mode.xml: Update a paper reference.
 
2017-02-08  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* src/c++11/snprintf_lite.cc (__err): Use https for bug reporting.
 
2017-02-08  Jonathan Wakely  <jwakely@redhat.com>
 
	* doc/xml/manual/policy_data_structures.xml: Fix spelling of author's
	name.
	* doc/xml/manual/policy_data_structures_biblio.xml: Likewise. Remove
	broken links to texts that are no longer online.
	* doc/xml/manual/profile_mode.xml: Update links to CGO 2009 paper and
	LCPC 2006 paper.
	* doc/xml/manual/using.xml: Update links to memory model information.
	* doc/xml/manual/using_exceptions.xml: Update link to "Appendix E:
	Standard-Library Exception Safety".
	* doc/html/*: Regenerate.
 
2017-02-08  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/profile_mode.xml: Unbreak link to
	"Optimizing Sorting with Machine Learning Algorithms".
 
2017-02-08  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* src/c++11/snprintf_lite.cc (__err): Update bug reporting URL.
 
2017-02-08  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/abi.xml: Update link to "Sun Studio 11: C++
	Migration Guide".
 
2017-02-07  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/html/ext/lwg-active.html: Remove.
	* doc/html/ext/lwg-closed.html: Ditto.
	* doc/html/ext/lwg-defects.html: Ditto.
 
	* doc/Makefile.am (xml_extradir): Remove.
	(xml_extra): Ditto.
	(stamp-html-docbook-lwg): Remove recipe...
	(stamp-html-docbook-data): ...and its use here.
	* doc/Makefile.in: Regenerate.
 
	* doc/xml/manual/intro.xml: Shorten two paragraphs explaining
	the relationship to the upstream working group.
	Replace a local link to ../ext/lwg-active.html by the upstream one.
	Replace all reference to ../ext/lwg-defects.html by a new entity
	&DR; which refers to the upstream address.
 
2017-02-07  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/status_cxx2017.xml: Fix link to N4284.
 
2017-02-06  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79323
	* testsuite/20_util/duration/literals/range.cc: Prune extra output
	at -O0.
 
2017-02-06  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/documentation_hacking.xml: Update URL of the
	DocBook Element Reference.  Use that term as link description
	instead of "online".
	epubcheck has moved to GitHub.
	Remove obsolete link to DocBook Publishing Tools.
 
2017-02-03  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/66145
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Restore ABI override
	so new ios::failure can be caught even when old ABI is the default.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
 
	PR libstdc++/60936
	* src/c++11/Makefile.am: Add new files.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/cow-string-inst.cc [!_GLIBCXX_USE_CXX11_ABI]
	(operator<<, operator>>, getline): Move explicit instantiations to ...
	* src/c++11/cow-string-io-inst.cc: ... new file.
	* src/c++11/cow-wstring-inst.cc [!_GLIBCXX_USE_CXX11_ABI]
	(operator<<, operator>>, getline): Move explicit instantiations to ...
	* src/c++11/cow-wstring-io-inst.cc: ... new file.
	* src/c++11/functexcept.cc (__throw_ios_failure, __throw_system_error)
	(__throw_future_error, __throw_bad_function_call):
	(__throw_regex_error): Move functions for C++11 exceptions to the
	files that define the exception types.
	* src/c++11/functional.cc (__throw_bad_function_call): Move here.
	* src/c++11/future.cc (__throw_future_error): Likewise.
	* src/c++11/ios.cc (__throw_ios_failure): Likewise.
	* src/c++11/regex.cc (__throw_regex_error): Likewise.
	* src/c++11/snprintf_lite.cc (__concat_size_t): Print decimal
	representation directly instead of calling __int_to_char.
	* src/c++11/sso_string.cc (__sso_string): New file for definition
	of __sso_string type.
	* src/c++11/string-io-inst.cc [_GLIBCXX_USE_CXX11_ABI]: New file for
	explicit instantiations of narrow string I/O functions.
	* src/c++11/system_error.cc (__throw_system_error): Move here.
	(__sso_string): Move to new file.
	* src/c++11/wstring-io-inst.cc [_GLIBCXX_USE_CXX11_ABI]: New file for
	explicit instantiations of wide string I/O functions.
	* src/c++98/misc-inst.cc [_GLIBCXX_USE_CXX11_ABI] (operator<<)
	(operator>>, getline): Remove explicit instantiations from here.
 
2017-02-02  H.J. Lu  <hongjiu.lu@intel.com>
 
	* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
 
2017-02-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
	* configure.host: Separate Solaris/SPARC and x86 baselines.
	* config/abi/post/solaris2.10/baseline_symbols.txt: Move ...
	* config/abi/post/sparc-solaris2.10/baseline_symbols.txt: ... here.
	* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Move ...
	* config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt:
	... here.
	* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Move ...
	* config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: ... here.
	* config/abi/post/i386-solaris2.10/baseline_symbols.txt: New file.
	* config/abi/post/solaris2.11/baseline_symbols.txt: Move ...
	* config/abi/post/sparc-solaris2.11/baseline_symbols.txt: ... here.
	* config/abi/post/solaris2.11/sparcv9/baseline_symbols.txt: Move ...
	* config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt:
	... here.
	* config/abi/post/solaris2.11/amd64/baseline_symbols.txt: Move ...
	* config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: ... here.
	* config/abi/post/i386-solaris2.11/baseline_symbols.txt: New file.
 
	* config/abi/post/solaris2.10/baseline_symbols.txt: Regenerate.
	* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.11/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.11/amd64/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.11/sparcv9/baseline_symbols.txt: Likewise.
 
2017-02-01  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78346
	* include/bits/predefined_ops.h (_Iter_equals_iter): Store iterator
	not its referent.
	(_Iter_comp_to_iter): Likewise.
	* testsuite/25_algorithms/search/78346.cc: New test.
 
	PR libstdc++/79254
	* config/abi/pre/gnu.ver: Remove recently added symbols.
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_M_copy_assign): Remove.
	(basic_string::operator=(const basic_string&)): Don't dispatch to
	_M_copy_assign. If source object is small just deallocate, otherwise
	perform new allocation before making any changes.
	* include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_M_copy_assign(const basic_string&, true_type)):
	Remove.
	* testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
	Test cases where the allocators are equal or the string is small.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
	Likewise.
 
2017-01-30  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement LWG 2825, LWG 2756 breaks class template argument
	deduction for optional.
	* include/std/optional: Add a deduction guide.
	* testsuite/20_util/optional/cons/deduction_guide.cc: New.
 
2017-01-27  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79254
	* config/abi/pre/gnu.ver: Add new symbols.
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_M_copy_assign): New overloaded functions to perform
	copy assignment.
	(basic_string::operator=(const basic_string&)): Dispatch to
	_M_copy_assign.
	* include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_M_copy_assign(const basic_string&, true_type)):
	Define, performing rollback on exception.
	* testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
	Test exception-safety guarantee.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
	Likewise.
	* testsuite/util/testsuite_allocator.h (uneq_allocator::swap): Make
	std::swap visible.
 
2017-01-26  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/70607
	* include/tr1/complex (conj): Remove using-declaration and restore
	overloads, reverting previous change.
 
	* testsuite/23_containers/list/operations/78389.cc: Fix for C++11
	mode.
	* testsuite/23_containers/priority_queue/requirements/constructible.cc:
	Mark as unsupported in C++98 mode.
	* testsuite/23_containers/queue/requirements/constructible.cc:
	Likewise.
	* testsuite/23_containers/stack/requirements/constructible.cc:
	Likewise.
	* testsuite/25_algorithms/make_heap/movable.cc: Fix for C++11 mode.
 
	PR libstdc++/79243
	* include/bits/c++config (literals::string_view_literals::__7): Add.
	Only declare versioned namespaces for the relevant C++ dialects.
	* include/experimental/bits/erase_if.h (fundamentals_v2::__detail):
	Add versioning macros.
	* include/experimental/bits/lfts_config.h:
	(fundamentals_v1::__detail::__7, fundamentals_v2::__detail::__7): Add.
	* include/experimental/string_view (fundamentals_v2::__detail):
	Add versioning macros.
	(fundamentals_v2::__detail::__identity): Remove.
	(fundamentals_v2::__detail::__idt): Use common_type instead of
	__detail::__identity.
	* include/std/string_view (__detail::__identity, __detail::__idt):
	Likewise.
	(literals::string_view_literals): Fix nesting of versioning macros.
 
	PR libstdc++/79190
	* libsupc++/del_opa.cc (operator delete(void*, std::align_val_t))
	[!_GLIBCXX_HAVE_ALIGNED_ALLOC && !_GLIBCXX_HAVE_POSIX_MEMALIGN
	&& !_GLIBCXX_HAVE_MEMALIGN && !_GLIBCXX_HAVE__ALIGNED_MALLOC]:
	Retrieve original pointer value allocated by malloc.
	* libsupc++/new_opa.cc [!_GLIBCXX_HAVE_ALIGNED_ALLOC
	&& !_GLIBCXX_HAVE_POSIX_MEMALIGN && !_GLIBCXX_HAVE_MEMALIGN
	&& !_GLIBCXX_HAVE__ALIGNED_MALLOC] (aligned_alloc(size_t, size_t)):
	Define, adjusting pointer value allocated by malloc and storing for
	retrieval by operator delete.
 
2017-01-26  Jakub Jelinek  <jakub@redhat.com>
 
	* libsupc++/eh_atomics.h: Update copyright years.
	* testsuite/20_util/unique_ptr/cons/default.cc: Update copyright years.
 
2017-01-25  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/61791
	PR libstdc++/70607
	* include/std/complex (real(T), imag(T)): Add _GLIBCXX_CONSTEXPR.
	(proj(T), conj(T)): Change return types per DR 1522.
	* include/tr1/complex (conj): Remove overloads and use std::conj.
	* testsuite/26_numerics/complex/dr781_dr1137.cc: Rename to...
	* testsuite/26_numerics/complex/dr781.cc: ... this, and update.
	* testsuite/26_numerics/complex/value_operations/constexpr2.cc: Test
	real(T) and imag(T). Allow testing for C++11 too.
 
2017-01-24  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79206
	* include/experimental/string_view (operator==): Check sizes first.
	* include/std/string_view (operator==): Likewise.
 
2017-01-23  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/experimental/array/make_array.cc: Restore <functional>
	inclusion.
 
2017-01-23  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 
	* testsuite/29_atomics/atomic/69301.cc: Require atomic builtins.
 
2017-01-23  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79195
	* include/experimental/array (__make_array_elem): New class template
	and partial specialization.
	(__is_reference_wrapper): Move into __make_array_elem specialization.
	(make_array): Use __make_array_elem to determine element type and move
	static assertion into specialization. Qualify std::forward call.
	(to_array): Add exception specifiation.
	* testsuite/experimental/array/make_array.cc: Test argument types
	without a common type.
	* testsuite/experimental/array/neg.cc: Adjust expected error message.
 
2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/debug.xml: code.google.com uses https now.
 
2017-01-22  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/test.xml: Fix link into gccint online manual.
 
2017-01-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Make poisoned hashes SFINAE away the call operator of the hash.
	* include/bits/functional_hash.h
	(__poison_hash::__enable_hash_call): New.
	* include/std/optional (__optional_hash_call_base): New.
	(hash<optional<_Tp>>): Derive from the new base,
	move the hash function into that base.
	* include/std/variant (__variant_hash_call_base_impl): New.
	(__variant_hash_call_base): Likewise.
	(hash<variant<_Types...>>): Derive from the new base,
	move the hash function into that base.
	* testsuite/20_util/optional/hash.cc: Add tests for is_callable.
	* testsuite/20_util/variant/hash.cc: Likewise.
 
2017-01-20  Joe Seymour  <joe.s@somniumtech.com>
 
	* acinclude.m4 (GLIBCXX_CHECK_SIZE_T_MANGLING): Support uint20_t.
	* configure: Regenerate.
 
2017-01-20  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/69240
	* include/bits/random.h (uniform_real_distribution::param_type)
	(normal_distribution::param_type, lognormal_distribution::param_type)
	(gamma_distribution::param_type, chi_squared_distribution::param_type)
	(cauchy_distribution::param_type, fisher_f_distribution::param_type)
	(student_t_distribution::param_type)
	(bernoulli_distribution::param_type, binomial_distribution::param_type)
	(geometric_distribution::param_type)
	(negative_binomial_distribution::param_type)
	(poisson_distribution::param_type)
	(exponential_distribution::param_type)
	(weibull_distribution::param_type)
	(extreme_value_distribution::param_type)
	(discrete_distribution::param_type)
	(piecewise_constant_distribution::param_type)
	(piecewise_linear_distribution::param_type): Define operator!=.
	* include/bits/uniform_int_dist.h
	(uniform_int_distribution::param_type): Likewise.
	* include/ext/random (beta_distribution::param_type)
	(rice_distribution::param_type, nakagami_distribution::param_type)
	(pareto_distribution::param_type, k_distribution::param_type)
	(arcsine_distribution::param_type, hoyt_distribution::param_type)
	(triangular_distribution::param_type)
	(von_mises_distribution::param_type)
	(hypergeometric_distribution::param_type)
	(logistic_distribution::param_type)
	(uniform_on_sphere_distribution::param_type)
	(uniform_inside_sphere_distribution::param_type): Likewise.
	* testsuite/26_numerics/random/bernoulli_distribution/cons/parms.cc:
	Test construction with param_type.
	* testsuite/26_numerics/random/binomial_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/cauchy_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/chi_squared_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/exponential_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/extreme_value_distribution/cons/
	parms.cc: Likewise.
	* testsuite/26_numerics/random/fisher_f_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/gamma_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/geometric_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/lognormal_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/negative_binomial_distribution/cons/
	parms.cc: Likewise.
	* testsuite/26_numerics/random/normal_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/poisson_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/student_t_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/uniform_int_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/uniform_real_distribution/cons/parms.cc:
	Likewise.
	* testsuite/26_numerics/random/weibull_distribution/cons/parms.cc:
	Likewise.
	* testsuite/ext/random/arcsine_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/beta_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/hypergeometric_distribution/cons/parms.cc:
	Likewise.
	* testsuite/ext/random/k_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/logistic_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/nakagami_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/normal_mv_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/pareto_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/rice_distribution/cons/parms.cc: Likewise.
	* testsuite/ext/random/triangular_distribution/cons/parms.cc:
	Likewise.
	* testsuite/ext/random/uniform_inside_sphere_distribution/cons/
	parms.cc: Likewise.
	* testsuite/ext/random/von_mises_distribution/cons/parms.cc: Likewise.
 
	PR libstdc++/72792
	* include/bits/alloc_traits.h (__allocator_traits_base::__diff_type)
	(__allocator_traits_base::__size_type): Remove.
	(allocator_traits::_Ptr): New class template to detect const and void
	pointer types without instantiating pointer_traits::rebind
	unnecessarily.
	(allocator_traits::_Diff): Likewise for detecting difference_type.
	(allocator_traits::_Size): New class template to detect size_type
	without instantiating make_unsigned unnecessarily.
	* include/bits/ptr_traits.h (pointer_traits::element_type): Use
	__detected_or_t instead of __detected_or_t_.
	* include/std/type_traits (__detected_or_t_): Remove.
	* testsuite/20_util/allocator_traits/members/pointers.cc: New test.
 
	PR libstdc++/72792
	PR libstdc++/72793
	* include/bits/alloc_traits.h (__allocator_traits_base::__rebind):
	Replace with class template using void_t.
	(__alloc_rebind): Define in terms of
	__allocator_traits_base::__rebind.
	(allocator_traits): Remove unconditional static_assert for
	rebind_alloc.
	* include/bits/ptr_traits.h (__replace_first_arg): Remove type member.
	(pointer_traits::__rebind): Replace with class template using void_t.
	(pointer_traits::rebind): Define in terms of __rebind.
	(pointer_traits): Remove unconditional static_assert for rebind.
	* testsuite/20_util/allocator_traits/members/rebind_alloc.cc: New test.
	* testsuite/20_util/pointer_traits/rebind.cc: New test.
 
	PR libstdc++/69321
	* include/experimental/any (__any_caster): Avoid instantiating
	manager function for types that can't be stored in any.
	* include/std/any (__any_caster): Likewise.
	* testsuite/20_util/any/misc/any_cast.cc: Test non-copyable type.
	* testsuite/experimental/any/misc/any_cast.cc: Likewise.
 
	PR libstdc++/64903
	* include/bits/stl_algo.h (is_partitioned): Use increment instead of
	std::advance.
 
2017-01-19  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79156
	* include/bits/shared_ptr_base.h (__enable_shared_from_this_base):
	Fix return type.
	(__enable_shared_from_this): Declare __shared_ptr as a friend.
	* testsuite/ext/shared_ptr/1.cc: New test.
 
	PR libstdc++/64903
	* include/bits/stl_algo.h (is_partitioned): Don't retest the partition
	point.
	* testsuite/25_algorithms/is_partitioned/2.cc: New test.
 
	* doc/xml/manual/abi.xml: Fix typo.
	* doc/html/manual/abi.html: Likewise.
 
	PR libstdc++/67085
	* include/bits/predefined_ops.h (_Iter_less_val, _Val_less_iter): Add
	converting constructors from _Iter_less_iter.
	(_Iter_comp_val, _Val_comp_iter): Add converting constructors from
	_Iter_comp_iter.
	(__iter_comp_val(_Iter_comp_iter<C>): Use converting constructor.
	(__val_comp_iter(_Iter_comp_iter<C>): Likewise.
	* include/bits/stl_heap.h (__is_heap_until, __push_heap, __pop_heap)
	(__make_heap, __sort_heap): Change _Compare parameters to references.
	(__is_heap, push_heap, __adjust_heap, __pop_heap, pop_heap)
	(__make_heap, make_heap, sort_heap, is_heap_until): Pass comparison
	functions as lvalues.
	(is_heap): Call __is_heap_until directly to avoid copying __comp.
	* testsuite/23_containers/priority_queue/67085.cc: Adjust test to
	count copies during construction with empty sequence.
 
	PR libstdc++/67085
	* include/bits/stl_heap.h (__is_heap): Use _GLIBCXX_MOVE.
	(__make_heap, __sort_heap): Don't use _GLIBCXX_MOVE inside loops.
	* testsuite/23_containers/priority_queue/67085.cc: Adjust expected
	number of copies.
	* testsuite/25_algorithms/make_heap/movable.cc: New test.
 
	PR libstdc++/67085
	* include/bits/stl_heap.h (push_heap, __adjust_heap, __pop_heap)
	(pop_heap, __make_heap, make_heap, __sort_heap, sort_heap): Use
	_GLIBCXX_MOVE when passing comparison function to other functions.
	(is_heap_until, is_heap): Use std::move when passing comparison
	function.
	* testsuite/23_containers/priority_queue/67085.cc: New test.
 
	PR libstdc++/78905
	* doc/xml/manual/abi.xml (abi.versioning.history): Add markup to
	macro names, filenames, and literal values. Document _GLIBCXX_RELEASE.
	Document that the deprecated _GLIBCXX_VERSION macro was removed for
	the 4.0.0 release.
	* doc/html/*: Regenerate.
	* include/Makefile.am (_GLIBCXX_RELEASE): Set value.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config (_GLIBCXX_RELEASE): Add #define.
	* testsuite/ext/profile/mutex_extensions_neg.cc: Use lineno of 0 in
	dg-error.
 
2017-01-18  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/69301
	* include/std/atomic (atomic<T>::load, atomic<T>::exchange): Use
	aligned buffer instead of default-initialized variable.
	* testsuite/29_atomics/atomic/69301.cc: New test.
	* include/experimental/memory (observer_ptr::release): Use reserved
	name.
	* include/ext/pointer.h (_Pointer_adapter::operator++(int))
	(_Pointer_adapter::operator--(int)): Likewise.
 
	PR libstdc++/68925
	* include/experimental/random (randint): Use temporary instead of
	thread_local static.
 
2017-01-17  Joshua Conner  <joshconner@google.com>
 
	* crossconfig.m4: Add fuchsia OS.
	* configure: Regenerate.
 
2017-01-17  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/69699
	* doc/xml/manual/abi.xml (abi.versioning.history): Explain why the
	__GLIBCXX__ macro is not useful. Remove redundant date information
	and link to the GCC release timeline.
	(abi.versioning.active): Move partial sentence into the previous
	paragraph.
	* doc/html/*: Regenerate.
 
	PR libstdc++/79114
	* libsupc++/nested_exception.h (throw_with_nested): Use decay instead
	of remove_reference.
	* testsuite/18_support/nested_exception/79114.cc: New test.
 
2017-01-17  Jakub Jelinek  <jakub@redhat.com>
 
	PR other/79046
	* configure.ac: Add GCC_BASE_VER.
	* fragment.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* po/Makefile.in: Regenerated.
	* libsupc++/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* doc/Makefile.in: Regenerated.
	* python/Makefile.in: Regenerated.
	* src/c++11/Makefile.in: Regenerated.
	* src/c++98/Makefile.in: Regenerated.
	* src/filesystem/Makefile.in: Regenerated.
 
2017-01-16  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/66145
	* src/c++11/functexcept.cc: Use new ABI for std::ios_base::failure
	exceptions.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Don't override ABI
	for test, so new ios::failure can be caught.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
 
	PR libstdc++/78702
	* include/bits/locale_classes.h (locale::facet::__shim): Change from
	private to protected.
	* src/c++11/cxx11-shim_facets.cc (__shim_accessor): Define helper to
	make locale::facet::__shim accessible.
 
2017-01-16  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	PR libstdc++/78389
	* include/bits/list.tcc (merge(list&&)): Fix backwards size adjustments.
	(merge(list&&, _StrictWeakOrdering)): Likewise.
	* testsuite/23_containers/list/operations/78389.cc: Add
	better test for the sizes.
 
2017-01-14  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
	Skip test when -D_GLIBCXX_PROFILE mode is included in options.
	* testsuite/23_containers/map/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
	Likewise.
	* testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
	* testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/set/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/unordered_map/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/unordered_multimap/modifiers/extract.cc::
	Likewise.
	* testsuite/23_containers/unordered_multiset/modifiers/extract.cc::
	Likewise.
	* testsuite/23_containers/unordered_set/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
	Likewise.
	* testsuite/25_algorithms/binary_search/partitioned.cc: Likewise.
	* testsuite/25_algorithms/equal_range/partitioned.cc: Likewise.
	* testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise.
	* testsuite/25_algorithms/lower_bound/partitioned.cc: Likewise.
	* testsuite/25_algorithms/upper_bound/partitioned.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/debug.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
 
2017-01-13  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/65411
	* config/io/basic_file_stdio.cc (__basic_file<char>::close()): Don't
	retry fclose on EINTR.
 
	* include/profile/base.h: Remove unused header that leads to header
	cycle in C++17 mode.
 
	PR libstdc++/79075
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI] (basic_string):
	Make _If_sv private.
	[!_GLIBCXX_USE_CXX11_ABI] (basic_string): Add member functions taking
	basic_string_view arguments.
 
	PR libstdc++/79075
	* testsuite/lib/libstdc++.exp (check_v3_target_filesystem_ts): Remove
	redundant option from cxxflags.
	(check_effective_target_cxx11-abi): Define.
	* testsuite/21_strings/basic_string/allocator/71964.cc: Use cxx11-abi
	effective target.
	* testsuite/21_strings/basic_string/allocator/char/copy.cc: Likewise.
	* testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/char/minimal.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/char/move.cc: Likewise.
	* testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/char/noexcept.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/char/swap.cc: Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/move.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/noexcept.cc:
	Likewise.
	* testsuite/21_strings/basic_string/allocator/wchar_t/swap.cc:
	Likewise.
	* testsuite/23_containers/list/61347.cc: Likewise.
	* testsuite/27_io/basic_fstream/cons/base.cc: Likewise.
	* testsuite/27_io/ios_base/failure/cxx11.cc: Likewise.
 
2017-01-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	PR libstdc++/78389
	* include/bits/list.tcc (merge(list&&)):
	Adjust list sizes if the comparator throws.
	(merge(list&&, _StrictWeakOrdering)): Likewise.
	(sort()): Splice elements back from the scratch buffers
	if the comparator throws.
	(sort(_StrictWeakOrdering)): Likewise.
	* testsuite/23_containers/list/operations/78389.cc: New.
 
2017-01-13  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Mark
	XFAIL for C++17 until node reinsertion supports fancy pointers.
 
	PR libstdc++/78361
	* testsuite/20_util/add_pointer/value.cc: Test forming function
	pointers.
 
2017-01-13  Michael Brune  <lucdanton@free.fr>
 
	PR libstdc++/78361
	* include/std/type_traits (__is_referenceable): Handle noexcept
	function types.
 
2017-01-12  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/77528
	* include/bits/stl_queue.h (queue, priority_queue): Remove default
	member-initializers and define default constructors as templates with
	constraints.
	* include/bits/stl_stack.h (stack): Likewise.
	* testsuite/23_containers/priority_queue/requirements/constructible.cc:
	New.
	* testsuite/23_containers/priority_queue/requirements/
	explicit_instantiation/1.cc: Test more instantiations.
	* testsuite/23_containers/priority_queue/requirements/
	explicit_instantiation/1_c++98.cc: Likewise.
	* testsuite/23_containers/queue/requirements/constructible.cc: New.
	* testsuite/23_containers/stack/requirements/constructible.cc: New.
 
	PR libstdc++/66284
	* doc/xml/manual/intro.xml: Document LWG 2781 change.
	* doc/html/*: Regenerate.
	* include/std/functional (_Function_base::_Ref_manager): Remove.
	(_Function_handler): Remove partial specializations for
	reference_wrapper.
	(function::target): Remove special case for const qualification.
	* testsuite/20_util/function/6.cc: Adjust tests for target type.
	* testsuite/20_util/function/7.cc: Likewise.
	* testsuite/20_util/function/8.cc: Likewise.
 
2017-01-11  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78134
	* include/bits/stl_map.h (map::lower_bound, map::upper_bound)
	(map::equal_range): Fix return type of heterogeneous overloads.
	* include/bits/stl_multimap.h (multimap::lower_bound)
	(multimap::upper_bound, multimap::equal_range): Likewise.
	* include/bits/stl_multiset.h (multiset::lower_bound)
	(multiset::upper_bound, multiset::equal_range): Likewise.
	* include/bits/stl_set.h (set::lower_bound, set::upper_bound)
	(set::equal_range): Likewise.
	* testsuite/23_containers/map/operations/2.cc
	* testsuite/23_containers/multimap/operations/2.cc
	* testsuite/23_containers/multiset/operations/2.cc
	* testsuite/23_containers/set/operations/2.cc
 
	PR libstdc++/78273
	* include/bits/stl_map.h (map::count<_Kt>(const _Kt&)): Don't assume
	the heterogeneous comparison can only find one match.
	* include/bits/stl_set.h (set::count<_Kt>(const _Kt&)): Likewise.
	* testsuite/23_containers/map/operations/2.cc: Test count works with
	comparison function that just partitions rather than sorting.
	* testsuite/23_containers/set/operations/2.cc: Likewise.
 
2017-01-11  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Reduce the size of variant, it doesn't need an index of
	type size_t internally.
	* include/std/variant (parse_numbers.h): New include.
	(__select_index): New.
	(_Variant_storage<false, _Types...>::_M_reset_impl): Use
	_index_type for comparison with variant_npos.
	(_Variant_storage<false, _Types...>::__index_type): New.
	(_Variant_storage<false, _Types...>::_M_index): Change the
	type from size_t to __index_type.
	(_Variant_storage<true, _Types...>::__index_type): New.
	(_Variant_storage<true, _Types...>::_M_index): Change the
	type from size_t to __index_type.
	(_Variant_base::_M_valid): Use _Storage::__index_type
	for comparison with variant_npos.
	(variant::index): Use _Base::_Storage::__index_type
	for comparison with variant_npos.
	* testsuite/20_util/variant/index_type.cc: New.
 
2017-01-10  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/18_support/exception_ptr/60612-unexpected.cc: Adjust
	effective target selector to prevent running in C++17 mode.
 
	PR libstdc++/77528
	* include/bits/stl_queue.h (queue::c): Add default member initializer.
	(queue::queue()): Add constructor and define as defaulted.
	(queue::queue(_Sequence&&)): Remove default argument.
	(priority_queue::c, priority_queue::comp): Add default member
	initializers.
	(priority_queue::priority_queue()): Add constructor and define as
	defaulted.
	(priority_queue::priority_queue(const _Compare&, _Sequence&&)):
	Remove default argument for first parameter.
	* include/bits/stl_stack.h (stack::c): Add default member initializer.
	(stack::stack()): Add constructor and define as defaulted.
	(stack::stack(const _Sequence&)): Remove default argument.
	* testsuite/23_containers/priority_queue/requirements/
	explicit_instantiation/1.cc: Test explicit instantiation with
	non-DefaultConstructible sequence.
	* testsuite/23_containers/priority_queue/77528.cc: New test.
	* testsuite/23_containers/priority_queue/requirements/
	explicit_instantiation/1_c++0x.cc: Replace with 1_c++98.cc.
	* testsuite/23_containers/queue/77528.cc: New test.
	* testsuite/23_containers/queue/requirements/explicit_instantiation/
	1.cc: Test explicit instantiation with non-DefaultConstructible
	sequence.
	* testsuite/23_containers/queue/requirements/explicit_instantiation/
	1_c++0x.cc: Replace with 1_c++98.cc.
	* testsuite/23_containers/stack/77528.cc: New test.
	* testsuite/23_containers/stack/requirements/explicit_instantiation/
	1.cc: Test explicit instantiation with non-DefaultConstructible
	sequence.
	* testsuite/23_containers/stack/requirements/explicit_instantiation/
	1_c++0x.cc: Replace with 1_c++98.cc.
 
2017-01-10  Felipe Magno de Almeida <felipe@expertisesolutions.com.br>
 
	* include/bits/locale_facets_nonio.tcc
	(time_get::_M_extract_via_format): Avoid compilation errors with
	non-standard struct tm.
 
2017-01-10  François Dumont  <fdumont@gcc.gnu.org>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	* python/libstdcxx/v6/printers.py (_versioned_namespace): Define.
	(is_specialization, strip_versioned_namespace): New helpers functions
	to work with symbols in the versioned namespace.
	(Printer.add_version): Add second name using versioned namespace.
	(add_one_template_type_printer, add_one_type_printer): Add second
	type printers using versioned namespace.
	(register_type_printers): Add template type printer for basic_string.
	(build_libstdcxx_dictionary): Remove dead code.
	* python/libstdcxx/v6/xmethods.py: Make all matchers look for
	versioned namespace.
	* testsuite/libstdc++-prettyprinters/48362.cc: Adjust expected
	results.
	* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
 
2017-01-09  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/79017
	* acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Check for llrint and llround
	functions separately on darwin and if they're missing define
	_GLIBCXX_NO_C99_ROUNDING_FUNCS.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* include/c_global/cmath [_GLIBCXX_NO_C99_ROUNDING_FUNCS] (llrint)
	(llrintf, llrintl, llround, llroundf, llroundl): Do not define.
 
	* testsuite/30_threads/condition_variable/members/3.cc: Use new macro
	to detect correct thread_local destructors.
	* testsuite/util/testsuite_hooks.h (CORRECT_THREAD_LOCAL_DTORS):
	Define.
 
2017-01-09  Jonathan Wakely  <jwakely@redhat.com>
	    Aditya Kumar  <hiraditya@msn.com>
 
	PR libstdc++/66414
	* include/bits/basic_string.tcc
	(basic_string::find(const CharT*, size_type, size_type)): Optimize.
 
2017-01-06  Jonathan Wakely  <jwakely@redhat.com>
 
	* testsuite/21_strings/basic_string/operations/find/char/6.cc: New.
	* testsuite/21_strings/basic_string/operations/find/wchar_t/6.cc: New.
 
	* testsuite/util/performance/priority_queue/mem_usage/pop_test.hpp:
	Include <cassert> header.
 
	PR libstdc++/78968
	* crossconfig.m4: Check for __cxa_thread_atexit on *-*-freebsd*.
	* configure: Regenerate.
 
2017-01-06  Barrett Adair  <barrettellisadair@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	* include/std/variant (variant, swap): Replace __and_ usage with fold
	expressions.
 
2017-01-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
	PR go/78978
	* acinclude.m4 (GLIBCXX_CHECK_ASSEMBLER_HWCAP): Remove.
	* configure.ac: Call GCC_CHECK_ASSEMBLER_HWCAP instead of
	GLIBCXX_CHECK_ASSEMBLER_HWCAP.
	* fragment.am (CONFIG_CXXFLAGS): Use HWCAP_CFLAGS instead of
	HWCAP_FLAGS.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in, doc/Makefile.in, include/Makefile.in,
	libsupc++/Makefile.in, po/Makefile.in, python/Makefile.in,
	src/Makefile.in, src/c++11/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.
 
2017-01-06  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/c++config (_GLIBCXX_ASSERTIONS): Avoid redefinition.
 
	PR libstdc++/78991
	* include/bits/predefined_ops.h (_Iter_comp_iter, _Iter_comp_val)
	(_Val_comp_iter, _Iter_equals_val, _Iter_pred, _Iter_comp_to_val)
	(_Iter_comp_to_iter, _Iter_negate): Make constructors explicit and
	move function objects.
	(__iter_comp_iter, __iter_comp_val, __val_comp_iter, __pred_iter)
	(__iter_comp_val, __iter_comp_iter, __negate): Move function objects.
	* testsuite/25_algorithms/sort/78991.cc: New test.
 
2017-01-05  Jonathan Wakely  <jwakely@redhat.com>
 
	* include/bits/std_function.h (function::_Signature_type): Remove.
	(function::function(_Functor)): Adjust.
 
2017-01-05  Tim Shen  <timshen@google.com>
 
	PR libstdc++/78996
	* include/std/variant (__gen_vtable_impl): rename __unused to
	__dimensions to avoid naming conflict.
 
2017-01-04  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78968
	* config.h.in: Regenerate.
	* configure: Likewise.
	* configure.ac: Check for __cxa_thread_atexit.
	* libsupc++/atexit_thread.cc [_GLIBCXX_HAVE___CXA_THREAD_ATEXIT]:
	Don't define __cxa_thread_atexit if libc provides it.
 
2017-01-04  Ville Voutilainen  <ville.voutilainen@gmail.com>
 
	Implement 2801, Default-constructibility of unique_ptr.
	* include/bits/unique_ptr.h (__uniq_ptr_impl::_DeleterConstraint): New.
	(unique_ptr::_DeleterConstraint): Likewise.
	(unique_ptr()): Constrain.
	(unique_ptr(pointer)): Likewise.
	(unique_ptr(nullptr_t)): Likewise.
	(unique_ptr<_Tp[], _Dp>::_DeleterConstraint): New.
	(unique_ptr<_Tp[], _Dp>::unique_ptr()): Constrain.
	(unique_ptr<_Tp[], _Dp>::unique_ptr(_Up)): Likewise.
	(unique_ptr<_Tp[], _Dp>::unique_ptr(nullptr_t)): Likewise.
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust.
	* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
	* testsuite/20_util/unique_ptr/cons/default.cc: New.
	* testsuite/20_util/unique_ptr/cons/ptr_deleter_neg.cc: Adjust.
 
2017-01-04  Pauli Nieminen  <suokkos@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/64735
	* acinclude.m4 (GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER): Define.
	* config.h.in: Regenerate.
	* config/abi/pre/gnu.ver [HAVE_EXCEPTION_PTR_SINCE_GCC46]
	(GLIBCXX_3.4.15, GLIBCXX_3.4.21, CXXABI_1.3.3, CXXABI_1.3.5): Make
	exports for exception_ptr, nested_exception, and future conditional.
	[HAVE_EXCEPTION_PTR_SINCE_GCC46] (GLIBCXX_3.4.23, CXXABI_1.3.11): Add
	exports for exception_ptr, nested_exception, and future conditional.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER.
	* include/std/future: Remove check for ATOMIC_INT_LOCK_FREE
	* libsupc++/eh_atomics.h: New file for internal use only.
	(__eh_atomic_inc, __eh_atomic_dec): New.
	* libsupc++/eh_ptr.cc (exception_ptr::_M_addref)
	(exception_ptr::_M_release) (__gxx_dependent_exception_cleanup)
	(rethrow_exception): Use eh_atomics.h reference counting helpers.
	* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Likewise.
	* libsupc++/eh_tm.cc (free_any_cxa_exception): Likewise.
	* libsupc++/exception: Remove check for ATOMIC_INT_LOCK_FREE.
	* libsupc++/exception_ptr.h: Likewise.
	* libsupc++/guard.cc: Include header for ATOMIC_INT_LOCK_FREE macro.
	* libsupc++/nested_exception.cc: Remove check for
	ATOMIC_INT_LOCK_FREE.
	* libsupc++/nested_exception.h: Likewise.
	* src/c++11/future.cc: Likewise.
	* testsuite/18_support/exception_ptr/*: Remove atomic builtins checks.
	* testsuite/18_support/nested_exception/*: Likewise.
	* testsuite/30_threads/async/*: Likewise.
	* testsuite/30_threads/future/*: Likewise.
	* testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
	* testsuite/30_threads/packaged_task/*: Likewise.
	* testsuite/30_threads/promise/*: Likewise.
	* testsuite/30_threads/shared_future/*: Likewise.
 
2017-01-03  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/manual/documentation_hacking.xml: sourceforge.net now
	defaults to https; adjust reference.
 
2017-01-03  Jonathan Wakely  <jwakely@redhat.com>
 
	PR libstdc++/78956
	* include/std/thread (thread(const thread&&)): Add deleted
	constructor.
	* testsuite/30_threads/thread/cons/lwg2097.cc: New test.
 
	* doc/xml/manual/spine.xml: Update copyright years.
	* doc/xml/manual/build_hacking.xml: Fix spelling of libbuilddir.
	* doc/xml/manual/test.xml: Likewise.
	* doc/html/*: Regenerate.
 
2017-01-01  Gerald Pfeifer  <gerald@pfeifer.com>
 
	* doc/xml/faq.xml: Update address of C++ ABI link.
	* doc/xml/manual/abi.xml: Ditto.
 
2017-01-01  Jakub Jelinek  <jakub@redhat.com>
 
	Update copyright years.

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