* doc/invoke.texi: Document -std=c++17 and -std=gnu++17 and document

[official-gcc.git] / libstdc++-v3 / ChangeLog

2017-09-15  Jakub Jelinek  <jakub@redhat.com>

        * testsuite/libstdc++-prettyprinters/cxx17.cc: Use -std=c++17 or
        -std=gnu++17 instead of -std=c++1z or -std=gnu++1z.  Use c++17 instead
        of c++1z and c++17_only instead of c++1z_only.  Adjust expected
        diagnostics and comments refering to 1z to 17.
        * testsuite/30_threads/lock_guard/cons/deduction.cc: Likewise.
        * testsuite/30_threads/scoped_lock/cons/deduction.cc: Likewise.
        * testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
        * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
        * testsuite/30_threads/scoped_lock/requirements/explicit_instantiation.cc:
        Likewise.
        * testsuite/30_threads/unique_lock/cons/deduction.cc: Likewise.
        * testsuite/18_support/launder/1.cc (test02): Likewise.
        * testsuite/18_support/launder/requirements_neg.cc: Likewise.
        * testsuite/18_support/launder/requirements.cc: Likewise.
        * testsuite/18_support/byte/requirements.cc: Likewise.
        * testsuite/18_support/byte/ops.cc: Likewise.
        * testsuite/18_support/byte/global_neg.cc: Likewise.
        * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
        Likewise.
        * testsuite/27_io/types/4.cc: Likewise.
        * testsuite/25_algorithms/sample/81221.cc: Likewise.
        * testsuite/25_algorithms/sample/1.cc: Likewise.
        * testsuite/25_algorithms/sample/2.cc: Likewise.
        * testsuite/25_algorithms/search/searcher.cc: Likewise.
        * testsuite/28_regex/basic_regex/ctors/deduction.cc: Likewise.
        * testsuite/experimental/filesystem/path/construct/string_view.cc:
        Likewise.
        * testsuite/24_iterators/range_access_cpp17.cc: Likewise.
        * testsuite/24_iterators/container_access.cc: Likewise.
        * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
        * testsuite/20_util/shared_ptr/casts/reinterpret.cc: Likewise.
        * testsuite/20_util/shared_ptr/cons/deduction.cc: Likewise.
        * testsuite/20_util/shared_ptr/cons/array.cc: Likewise.
        * testsuite/20_util/shared_ptr/observers/array.cc (struct A): Likewise.
        * testsuite/20_util/pair/cons/deduction.cc: Likewise.
        * testsuite/20_util/variant/deduction.cc: Likewise.
        * testsuite/20_util/tuple/78939.cc: Likewise.
        * testsuite/20_util/tuple/cons/deduction.cc: Likewise.
        * testsuite/20_util/void_t/1.cc: Likewise.
        * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc: Likewise.
        * testsuite/20_util/unique_ptr/cons/deduction_neg.cc: Likewise.
        * testsuite/20_util/addressof/requirements/constexpr.cc: Likewise.
        * testsuite/20_util/weak_ptr/cons/deduction.cc: Likewise.
        * testsuite/20_util/has_unique_object_representations/requirements/typedefs.cc:
        Likewise.
        * testsuite/20_util/has_unique_object_representations/requirements/explicit_instantiation.cc:
        Likewise.
        * testsuite/20_util/has_unique_object_representations/value.cc:
        Likewise.
        * testsuite/20_util/time_point/arithmetic/constexpr.cc: Likewise.
        * testsuite/20_util/function_objects/invoke/59768.cc: Likewise.
        * testsuite/20_util/function_objects/mem_fn/80478.cc: Likewise.
        * testsuite/20_util/function/cons/deduction.cc: Likewise.
        * testsuite/20_util/specialized_algorithms/memory_management_tools/destroy_neg.cc:
        Likewise.
        * testsuite/20_util/is_aggregate/requirements/typedefs.cc: Likewise.
        * testsuite/20_util/is_aggregate/requirements/explicit_instantiation.cc:
        Likewise.
        * testsuite/20_util/is_aggregate/value.cc: Likewise.
        * testsuite/26_numerics/lcm/1.cc: Likewise.
        * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
        * testsuite/26_numerics/gcd/1.cc: Likewise.
        * testsuite/26_numerics/gcd/gcd_neg.cc: Likewise.
        * testsuite/26_numerics/valarray/deduction.cc: Likewise.
        * testsuite/26_numerics/headers/cmath/types_std_c++0x_neg.cc: Likewise.
        * testsuite/26_numerics/headers/cmath/hypot.cc: Likewise.
        * testsuite/23_containers/queue/members/emplace_cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/array/cons/deduction.cc: Likewise.
        * testsuite/23_containers/array/cons/deduction_neg.cc: Likewise.
        * testsuite/23_containers/deque/modifiers/emplace/cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/deque/cons/deduction.cc: Likewise.
        * testsuite/23_containers/stack/members/emplace_cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/list/modifiers/emplace/cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/list/cons/deduction.cc: Likewise.
        * testsuite/23_containers/forward_list/modifiers/emplace_cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/forward_list/cons/deduction.cc: Likewise.
        * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Likewise.
        * testsuite/23_containers/vector/modifiers/emplace/cxx17_return.cc:
        Likewise.
        * testsuite/23_containers/vector/cons/deduction.cc: Likewise.
        * testsuite/23_containers/vector/bool/emplace_cxx17_return.cc:
        Likewise.
        * testsuite/21_strings/basic_string/cons/char/9.cc: Likewise.
        * testsuite/21_strings/basic_string/cons/char/deduction.cc: Likewise.
        * testsuite/21_strings/basic_string/cons/char/79162.cc: Likewise.
        * testsuite/21_strings/basic_string/cons/wchar_t/9.cc: Likewise.
        * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
        Likewise.
        * testsuite/21_strings/basic_string/cons/wchar_t/79162.cc: Likewise.
        * testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/char/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/char/70483.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/2.cc:
        Likewise.
        * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
        Likewise.

2017-09-13  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81468
        * include/std/chrono (__enable_if_is_duration)
        (__disable_if_is_duration): New alias templates to simplify SFINAE.
        (duration_cast, floor, ceil): Use __enable_if_is_duration.
        (duration::__is_float, duration::__is_harmonic): New alias templates
        to simplify SFINAE.
        (duration::duration(const _Rep2&)): Use _Require, __is_float and
        __is_harmonic.
        (duration::duration(const duration<_Rep2, _Period2>&)): Likewise.
        (__common_rep_type): Remove, replace with ...
        (__common_rep_t): New alias template.
        (operator*, operator/, operator%): Use __common_rep_t and
        __disable_if_is_duration.
        (time_point::time_point(const time_point<clock, _Dur2>&)): Add missing
        constraint from LWG DR 1177.
        * testsuite/20_util/duration/cons/dr1177.cc: New.
        * testsuite/20_util/duration/literals/range.cc: Update dg-error line.
        * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
        * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
        * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
        * testsuite/20_util/time_point/cons/81468.cc: New.

        * 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.

        * include/bits/allocated_ptr.h (__allocated_ptr::get): Use
        __to_address.
        (__allocated_ptr::_S_raw_ptr): Remove.
        * include/bits/forward_list.h (_Fwd_list_base::_M_get_node): Use
        __to_address.
        * include/bits/hashtable_policy.h (_Hashtable_alloc): Likewise.
        * include/bits/ptr_traits.h (__to_address): Define new function
        template.
        * include/bits/shared_ptr_base.h (__shared_ptr): Use __to_address.
        (__shared_ptr::_S_raw_ptr): Remove.
        * include/bits/stl_vector.h [__cplusplus >= 201103L]
        (vector::_M_data_ptr): Use __to_address.
        [__cplusplus < 201103L] (vector::_M_data_ptr): Don't dereference
        possibly invalid pointers.
        * include/ext/alloc_traits.h (__alloc_traits::construct)
        (__alloc_traits::destroy): Use __to_address.

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.

        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.

        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.

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.

2017-09-11  Tim Shen  <timshen@google.com>

        PR libstdc++/71500
        * include/bits/regex_executor.tcc: Support icase in regex_tratis<...>
        for back reference matches.
        * testsuite/28_regex/regression.cc: Test case.

2017-09-11  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/21_strings/basic_string/lwg2946.cc: Adjust for
        compatibility with old COW std::string.

2017-09-09  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/xml/manual/allocator.xml: Adjust link for Hoard.
        * doc/html/manual/memory.html: Regenerate.

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.

2017-08-31  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.

2017-08-24  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_list.h
        [!_GLIBCXX_INLINE_VERSION](_List_base<>::_S_distance): Remove.
        (_List_impl(_Node_alloc_type&&, _List_impl&&)): New.
        (_List_base(_Node_alloc_type&&, _List_base&&)): New, use latter.
        [!_GLIBCXX_INLINE_VERSION](_List_base(_Node_alloc_type&&,_List_base&&)):
        Remove.
        (_List_base(_Node_alloc_type&&)): New.
        [!_GLIBCXX_INLINE_VERSION](_List_base<>::_M_distance): Remove.
        [!_GLIBCXX_INLINE_VERSION](_List_base<>::_M_node_count): Remove.
        (list<>::_M_node_count): New.
        (list<>::size()): Adapt to call latter.
        (list<>::_S_distance(const_iterator, const_iterator)): New.
        (list<>::splice(iterator, list&, const_iterator, const_iterator)):
        Adapt to call latter.
        (list(list&&, const allocator_type&, true_type)): New.
        (list(list&&, const allocator_type&, false_type)): New.
        (list(list&&, const allocator_type&)): Adapt to call latters.

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.

2017-08-21  Richard Biener  <rguenther@suse.de>

        * testsuite/libstdc++-prettyprinters/prettyprinters.exp: Run all
        tests with -flto as well if supported.

2017-08-20  Martin Sebor  <msebor@redhat.com>

        PR c/81854
        * src/c++98/compatibility.cc (_GLIBCXX_3_4_SYMVER): Declare alias
        target as a C++ function with no prototype.
        (_GLIBCXX_3_4_5_SYMVER): Ditto.

2017-08-20  John David Anglin  <danglin@gcc.gnu.org>

        PR testsuite/81056
        * testsuite/17_intro/names.cc: Undef 'd' and 'r' on __hpux__.

2017-08-18  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/hashtable_policy.h (_ReuseOrAllocNode): Remove
        __value_alloc_type and __value_alloc_traits typedefs.
        (_ReuseOrAllocNode::operator()): Call construct and destroy on the
        node allocator.
        (_Hashtable_alloc): Simplify __value_alloc_traits typedef.
        (_Hashtable_alloc<_NodeAlloc>::_M_allocate_node(_Args&&...)): Call
        construct on the node allocator.
        (_Hashtable_alloc<_NodeAlloc>::_M_deallocate_node(__node_type*)): Call
        destroy on the node allocator.

        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.

2017-08-11  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81808
        * testsuite/27_io/basic_fstream/53984.cc: Adjust test for targets
        that allow opening a directory as a FILE and reading from it.

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.

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.

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.

2017-07-31  Marek Polacek  <polacek@redhat.com>

        PR libstdc++/81599
        * include/bits/stl_stack.h: Fix typo.

2017-07-26  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/27_io/basic_fstream/53984.cc: Fix test.

2017-07-26  Paolo Carlini  <paolo.carlini@oracle.com>

        * testsuite/27_io/basic_fstream/53984.cc: Fix typo in dg-require
        directive.

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.

        * include/bits/ios_base.h (ios_base::io_state, ios_base::open_mode)
        (ios_base::seek_dir): Remove for C++17.
        * include/std/streambuf (basic_streambuf::stossc): Remove for C++17.
        Add deprecated attribute for C++11 and C++14.
        * testsuite/27_io/types/1.cc: Don't run for C++17 and later.
        * testsuite/27_io/types/4.cc: New.

2017-07-23  Michael Collison  <michael.collison@arm.com>

        Add optimized implementation of mersenne twister for aarch64
        * config/cpu/aarch64/opt/ext/opt_random.h: New file.
        (__arch64_recursion): New function.
        (__aarch64_lsr_128): New function.
        (__aarch64_lsl_128): New function.
        (operator==): New function.
        (simd_fast_mersenne_twister_engine): Implement
        method _M_gen_rand.
        * config/cpu/aarch64/opt/bits/opt_random.h: New file.
        * include/ext/random: (simd_fast_mersenne_twister_engine):
        add _M_state private array.

2017-07-23  François Dumont  <fdumont@gcc.gnu.org>

        PR libstdc++/81064
        * include/bits/algorithmfwd.h: Reorganize versioned namespace.
        * include/bits/basic_string.h: Likewise.
        * include/bits/c++config: Likewise.
        * include/bits/deque.tcc: Likewise.
        * include/bits/forward_list.h: Likewise.
        * include/bits/forward_list.tcc: Likewise.
        * include/bits/hashtable_policy.h: Likewise.
        * include/bits/list.tcc: Likewise.
        * include/bits/move.h: Likewise.
        * include/bits/quoted_string.h: Likewise.
        * include/bits/random.h: Likewise.
        * include/bits/random.tcc: Likewise.
        * include/bits/regex.h: Likewise.
        * include/bits/regex.tcc: Likewise.
        * include/bits/regex_automaton.h: Likewise.
        * include/bits/regex_automaton.tcc: Likewise.
        * include/bits/regex_compiler.h: Likewise.
        * include/bits/regex_compiler.tcc: Likewise.
        * include/bits/regex_constants.h: Likewise.
        * include/bits/regex_error.h: Likewise.
        * include/bits/regex_executor.h: Likewise.
        * include/bits/regex_executor.tcc: Likewise.
        * include/bits/regex_scanner.h: Likewise.
        * include/bits/regex_scanner.tcc: Likewise.
        * include/bits/specfun.h: Likewise.
        * include/bits/stl_algo.h: Likewise.
        * include/bits/stl_algobase.h: Likewise.
        * include/bits/stl_bvector.h: Likewise.
        * include/bits/stl_deque.h: Likewise.
        * include/bits/stl_iterator.h: Likewise.
        * include/bits/stl_iterator_base_funcs.h: Likewise.
        * include/bits/stl_list.h: Likewise.
        * include/bits/stl_map.h: Likewise.
        * include/bits/stl_multimap.h: Likewise.
        * include/bits/stl_multiset.h: Likewise.
        * include/bits/stl_relops.h: Likewise.
        * include/bits/stl_set.h: Likewise.
        * include/bits/stl_vector.h: Likewise.
        * include/bits/uniform_int_dist.h: Likewise.
        * include/bits/unordered_map.h: Likewise.
        * include/bits/unordered_set.h: Likewise.
        * include/bits/vector.tcc: Likewise.
        * include/c_global/cmath: Likewise.
        * include/c_std/cmath: Likewise.
        * include/decimal/decimal: Likewise.
        * include/decimal/decimal.h: Likewise.
        * include/experimental/algorithm: Likewise.
        * include/experimental/any: Likewise.
        * include/experimental/array: Likewise.
        * include/experimental/bits/erase_if.h: Likewise.
        * include/experimental/bits/fs_dir.h: Likewise.
        * include/experimental/bits/fs_fwd.h: Likewise.
        * include/experimental/bits/fs_ops.h: Likewise.
        * include/experimental/bits/fs_path.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: Likewise.
        * include/experimental/forward_list: Likewise.
        * include/experimental/functional: Likewise.
        * include/experimental/iterator: Likewise.
        * include/experimental/list: Likewise.
        * include/experimental/map: Likewise.
        * include/experimental/memory: Likewise.
        * include/experimental/memory_resource: Likewise.
        * include/experimental/numeric: Likewise.
        * include/experimental/optional: Likewise.
        * include/experimental/propagate_const: Likewise.
        * include/experimental/random: Likewise.
        * include/experimental/ratio: Likewise.
        * include/experimental/regex: Likewise.
        * include/experimental/set: Likewise.
        * include/experimental/source_location: 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/utility: Likewise.
        * include/experimental/vector: Likewise.
        * include/ext/bitmap_allocator.h: Likewise.
        * include/ext/codecvt_specializations.h: Likewise.
        * include/ext/rope: Likewise.
        * include/ext/typelist.h: Likewise.
        * include/std/chrono: Likewise.
        * include/std/complex: Likewise.
        * include/std/functional: Likewise.
        * include/std/numeric: Likewise.
        * include/std/string_view: Likewise.
        * include/std/thread: Likewise.
        * include/std/variant: Likewise.
        * include/tr1/array: Likewise.
        * include/tr1/bessel_function.tcc: Likewise.
        * include/tr1/beta_function.tcc: Likewise.
        * include/tr1/cmath: Likewise.
        * include/tr1/complex: Likewise.
        * include/tr1/ell_integral.tcc: Likewise.
        * include/tr1/exp_integral.tcc: Likewise.
        * include/tr1/functional: Likewise.
        * include/tr1/functional_hash.h: Likewise.
        * include/tr1/gamma.tcc: Likewise.
        * include/tr1/hashtable.h: Likewise.
        * include/tr1/hashtable_policy.h: Likewise.
        * include/tr1/hypergeometric.tcc: Likewise.
        * include/tr1/legendre_function.tcc: Likewise.
        * include/tr1/modified_bessel_func.tcc: Likewise.
        * include/tr1/poly_hermite.tcc: Likewise.
        * include/tr1/poly_laguerre.tcc: Likewise.
        * include/tr1/random.h: Likewise.
        * include/tr1/random.tcc: Likewise.
        * include/tr1/regex: Likewise.
        * include/tr1/riemann_zeta.tcc: Likewise.
        * include/tr1/shared_ptr.h: Likewise.
        * include/tr1/special_function_util.h: Likewise.
        * include/tr1/tuple: Likewise.
        * include/tr1/type_traits: Likewise.
        * include/tr1/unordered_map.h: Likewise.
        * include/tr1/unordered_set.h: Likewise.
        * include/tr1/utility: Likewise.
        * include/tr2/bool_set: Likewise.
        * include/tr2/bool_set.tcc: Likewise.
        * include/tr2/dynamic_bitset: Likewise.
        * include/tr2/dynamic_bitset.tcc: Likewise.
        * include/tr2/ratio: Likewise.
        * include/tr2/type_traits: Likewise.
        * src/c++11/chrono.cc: Likewise.
        * src/c++11/compatibility-c++0x.cc: Likewise.
        * src/c++11/compatibility-chrono.cc: Likewise.
        * src/c++11/cxx11-shim_facets.cc: Likewise.
        * src/c++11/hashtable_c++0x.cc: Likewise.
        * src/c++11/placeholders.cc: Likewise.
        * src/c++11/thread.cc: Likewise.
        * src/c++98/bitmap_allocator.cc: Likewise.
        * src/c++98/hashtable_tr1.cc: Likewise.
        * src/c++98/list.cc: Likewise.
        * src/shared/hashtable-aux.cc: Likewise.
        * testsuite/20_util/duration/literals/range.cc: Adapt line number.
        * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
        * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
        * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
        * testsuite/20_util/forward/c_neg.cc: Likewise.
        * testsuite/20_util/forward/f_neg.cc: Likewise.
        * testsuite/26_numerics/gcd/gcd_neg.cc: Likewise.
        * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
        * testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
        * python/libstdcxx/v6/printers.py: Adapt.

2017-07-20  Jonathan Wakely  <jwakely@redhat.com>

        * config/allocator/malloc_allocator_base.h [__SANITIZE_ADDRESS__]
        (_GLIBCXX_SANITIZE_STD_ALLOCATOR): Define.
        * config/allocator/new_allocator_base.h [__SANITIZE_ADDRESS__]
        (_GLIBCXX_SANITIZE_STD_ALLOCATOR): Define.
        * doc/xml/manual/using.xml (_GLIBCXX_SANITIZE_VECTOR): Document macro.
        * include/bits/stl_vector.h [_GLIBCXX_SANITIZE_VECTOR]
        (_Vector_impl::_Asan, _Vector_impl::_Asan::_Reinit)
        (_Vector_impl::_Asan::_Grow, _GLIBCXX_ASAN_ANNOTATE_REINIT)
        (_GLIBCXX_ASAN_ANNOTATE_GROW, _GLIBCXX_ASAN_ANNOTATE_GREW)
        (_GLIBCXX_ASAN_ANNOTATE_SHRINK, _GLIBCXX_ASAN_ANNOTATE_BEFORE_DEALLOC):
        Define annotation helper types and macros.
        (vector::~vector, vector::push_back, vector::pop_back)
        (vector::_M_erase_at_end): Add annotations.
        * include/bits/vector.tcc (vector::reserve, vector::emplace_back)
        (vector::insert, vector::_M_erase, vector::operator=)
        (vector::_M_fill_assign, vector::_M_assign_aux)
        (vector::_M_insert_rval, vector::_M_emplace_aux)
        (vector::_M_insert_aux, vector::_M_realloc_insert)
        (vector::_M_fill_insert, vector::_M_default_append)
        (vector::_M_shrink_to_fit, vector::_M_range_insert): Annotate.

2017-07-19  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81476
        * include/bits/vector.tcc (vector::_M_range_insert<_InputIterator>):
        Only insert elements one-by-one when inserting at the end.
        * testsuite/performance/23_containers/insert/81476.cc: New.

2017-07-19  Volker Reichelt  <v.reichelt@netcologne.de>

        * libsupc++/new (bad_array_new_length): Remove redundant
        semicolon after in-class member function definition.
        * include/bits/locale_facets.h (ctype_byname, num_put): Likewise.
        * include/bits/locale_facets_nonio.h (time_put_byname): Likewise.
        * include/bits/random.h (mersenne_twister_engine): Likewise.
        * include/tr1/random.h (mersenne_twister): Likewise
        * include/ext/random (simd_fast_mersenne_twister_engine): Likewise.
        * include/ext/rope (char_producer, _Rope_char_consumer,
        _Rope_self_destruct_ptr, _Rope_const_iterator, _Rope_iterator):
        Likewise.
        * include/ext/ropeimpl.h (_Rope_flatten_char_consumer,
        _Rope_insert_char_consumer): Likewise.

2017-07-19  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/fstream.tcc (basic_filebuf::xsgetn)
        (basic_filebuf::xsputn, basic_filebuf::seekoff): Fix indentation.

        * testsuite/util/testsuite_iterators.h: Fix indentation.

        * testsuite/27_io/basic_filebuf/sgetn/char/81395.cc: Add dg-require.

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.

2017-07-18  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_list.h
        (struct _List_node_header): New.
        (_List_impl()): Fix noexcept qualification.
        (_List_impl(_List_impl&&)): New, default.
        (_List_base()): Default.
        (_List_base(_List_base&&)): Default.
        (_List_base::_M_move_nodes): Adapt to use
        _List_node_header._M_move_nodes.
        (_List_base::_M_init): Likewise.
        (list<>()): Default.
        (list<>(list&&)): Default.
        (list<>::_M_move_assign(list&&, true_type)): Use _M_move_nodes.
        (__distance(_List_const_iterator<>, _List_const_iterator<>,
        input_iterator_tag)): Adapt.
        * testsuite/23_containers/list/allocator/default_init.cc: New.

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.

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.

2017-07-11  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/faq.xml: Update several old entries. Improve
        cross-references.
        * doc/xml/manual/intro.xml: Add anchors to each DR.
        * doc/html/*: Regenerate.

2017-07-10  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/abi/pr42230.cc: Add header for std::free.

        PR libstdc++/81381
        * include/bits/sstream.tcc (basic_stringbuf::overflow)
        (basic_stringbuf::basic_stringbuf(const __string_type&, ios::mode))
        (basic_stringbuf::str()): Construct new strings with an allocator.
        * testsuite/27_io/basic_stringbuf/cons/81381.cc: New.

        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.

2017-07-06  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/specialized_algorithms/memory_management_tools/
        1.cc: Free memory.
        * testsuite/22_locale/locale/cons/5.cc: Remove redundant restoration
        of original environment and free memory.

        * testsuite/abi/pr42230.cc: Free memory.
        * testsuite/util/testsuite_abi.cc (demangle): Return std::string
        instead of pointer that might need freeing.
        * testsuite/util/testsuite_abi.h (demangle): Likewise.
        * testsuite/util/testsuite_hooks.cc (verify_demangle): Free memory.

        * 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.

2017-06-27  Tim Shen  <timshen@google.com>

        PR libstdc++/80187
        * include/std/variant (variant::variant, variant::~variant,
        variant::operator=): Implement triviality forwarding for four
        special member functions.
        * testsuite/20_util/variant/compile.cc: Tests.

2017-06-27  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81221
        * testsuite/25_algorithms/sample/81221.cc: Disable except for
        check-parallel.

        PR libstdc++/81221
        * include/bits/stl_algo.h (sample): Qualify with _GLIBCXX_STD_A not
        std.
        * testsuite/25_algorithms/sample/81221.cc: New.

2017-06-22  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81173
        * include/bits/stl_bvector.h (vector<bool>::_M_initialize_value):
        Do not pass null pointer to memset.

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  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

        * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.

2017-06-21  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/81092
        * configure: Regenerate.

2017-06-20  Uros Bizjak  <ubizjak@gmail.com>

        * config/abi/post/alpha-linux-gnu/baseline_symbols.txt: Update.

2017-06-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * testsuite/20_util/variant/index_type.cc: Allow for all ilp32 and
        lp64 targets.

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.

2017-06-18  Andreas Schwab  <schwab@linux-m68k.org>

        PR libstdc++/81092
        * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.

2017-06-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * testsuite: Remove dg-skip-if, dg-xfail-if, dg-xfail-run-if
        default args.

2017-06-17  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/80893
        * testsuite/23_containers/vector/bool/80893.cc: Add { target c++11 }.

2017-06-16  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/shared_ptr.h (get_deleter): Add overload matching
        standard signature.
        * include/bits/shared_ptr_base.h (__shared_ptr): Declare new
        get_deleter overload as a friend.
        * testsuite/20_util/shared_ptr/misc/get_deleter.cc: New.

2017-06-16  Jakub Jelinek  <jakub@redhat.com>

        PR libstdc++/81092
        * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/powerpc64-linux-gnu/32/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.

        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
        GLIBCXX_3.4.24 version and move random_device::_M_get_entropy() symbol
        to new GLIBCXX_3.4.25 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.

2017-06-16  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_bvector.h
        (__fill_bvector(_Bit_type*, unsigned int, unsigned int, bool)):
        Change signature.
        (std::fill(_Bit_iterator, _Bit_iterator, bool)): Adapt.
        (_Bvector_impl_data): New.
        (_Bvector_impl): Inherits from latter.
        (_Bvector_impl(_Bit_alloc_type&&)): Delete.
        (_Bvector_impl(_Bvector_impl&&)): New, default.
        (_Bvector_base()): Default.
        (_Bvector_base(_Bvector_base&&)): Default.
        (_Bvector_base::_M_move_data(_Bvector_base&&)): New.
        (vector(vector&&, const allocator_type&)): Use latter.
        (vector<bool>::operator=(vector&&)): Likewise.
        (vector<bool>::vector()): Default.
        (vector<bool>::vector(vector&&)): Default.
        (vector<bool>::assign(_InputIterator, _InputIterator)): Use
        _M_assign_aux.
        (vector<bool>::assign(initializer_list<bool>)): Likewise.
        (vector<bool>::_M_initialize_value(bool)): New.
        (vector<bool>(size_type, const bool&, const allocator_type&)): Use
        latter.
        (vector<bool>::_M_initialize_dispatch(_Integer, _Integer, __true_type)):
        Likewise.
        (vector<bool>::_M_fill_assign(size_t, bool)): Likewise.

2017-06-15  François Dumont  <fdumont@gcc.gnu.org>

        * src/c++98/tree.cc  [!_GLIBCXX_INLINE_VERSION]
        (_Rb_tree_rotate_left, _Rb_tree_rotate_right): Delete.

2017-06-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * testsuite: Add dg-require-effective-target pthread to -pthread
        tests.
        Remove explicit target lists from dg-do and dg-options.

        * testsuite/30_threads/async/forced_unwind.cc: Remove explit
        target list from dg-options.
        * testsuite/30_threads/packaged_task/forced_unwind.cc: Likewise.

        * 30_threads/shared_mutex/cons/1.cc: Likewise.
        Pass -pthread for all targets.
        * 30_threads/shared_mutex/try_lock/1.cc: Likewise.
        * 30_threads/shared_mutex/try_lock/2.cc: Likewise.
        * 30_threads/shared_mutex/unlock/1.cc: Likewise.

        * testsuite/30_threads/this_thread/57060.cc: Require c++11 via
        dg-require-effective-target.

2017-06-14  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/test.xml: Correct instructions on running tests.
        * testsuite/21_strings/basic_string/cons/char/deduction.cc: Adjust to
        pass when -D_GLIBCXX_USE_CXX11_ABI=0 added to RUNTESTFLAGS.
        * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
        Likewise.
        * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Likewise.
        * 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.

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.

2017-06-12  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_tree.h (_Rb_tree_impl()): Restore _Node_allocator
        default init.
        * testsuite/util/testsuite_allocator.h
        (__gnu_test::default_init_allocator<>) New.
        * testsuite/23_containers/set/allocator/default_init.cc: New.
        * testsuite/23_containers/map/allocator/default_init.cc: New.

2017-06-12  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/55917
        * src/c++11/thread.cc (execute_native_thread_routine): Remove
        try-block so that exceptions propagate out of the thread and terminate
        is called by the exception-handling runtime.
        (execute_native_thread_routine_compat): Likewise.
        * testsuite/30_threads/thread/cons/terminate.cc: New.

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.

        * include/bits/forward_list.h (forward_list): Add deduction guide.
        * include/bits/stl_deque.h (deque): Likewise.
        * include/bits/stl_list.h (list): Likewise.
        * include/bits/stl_vector.h (vector): Likewise.
        * testsuite/23_containers/deque/cons/deduction.cc: New.
        * testsuite/23_containers/forward_list/cons/deduction.cc: New.
        * testsuite/23_containers/list/cons/deduction.cc: New.
        * testsuite/23_containers/vector/cons/deduction.cc: New.

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.

2017-06-07  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/regex.h (basic_regex): Add deduction guide from P0433.
        * testsuite/28_regex/basic_regex/ctors/deduction.cc: New.

        PR libstdc++/81002
        * include/bits/regex.h (basic_regex): Adjust call to __compile_nfa
        so iterator type is deduced.
        * include/bits/regex_compiler.h (__compile_nfa): Reorder template
        parameters to allow iterator type to be deduced.
        * testsuite/28_regex/basic_regex/ctors/basic/iter.cc: New.

        * include/bits/alloc_traits.h (__is_allocator, _RequireAllocator):
        New trait and alias for detecting Allocator-like types.
        * include/bits/basic_string.h (basic_string): Add deduction guide
        from P0433.
        * include/ext/alloc_traits.h (__gnu_cxx::__alloc_traits): Add template
        parameter with default template argument that causes substitution
        failures for types that cannot be allocators.
        * testsuite/21_strings/basic_string/cons/char/deduction.cc: New.
        * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc: New.

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.

2017-06-05  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/stl_iterator_base_funcs.h
        (__advance<_RandomAccessIterator, _Distance>): Optimize for next/prev
        cases where incrementing or decrementing a single step.

        * 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.

2017-06-03  Andreas Schwab  <schwab@linux-m68k.org>

        * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update.

2017-06-03  Eric Botcazou  <ebotcazou@adacore.com>

        * src/filesystem/dir.cc (fs::_Dir::advance): Use std::exchange.

2017-06-02  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/80624
        * doc/xml/manual/status_cxx2011.xml: Document to_int_type behaviour.
        * include/bits/char_traits.h (char_traits<char16_t>::to_int_type):
        Transform eof value to U+FFFD.
        * testsuite/21_strings/char_traits/requirements/char16_t/eof.cc: New.
        * testsuite/27_io/basic_streambuf/sgetc/char16_t/80624.cc: New.
        * testsuite/27_io/basic_streambuf/sputc/char16_t/80624.cc: New.

        * libsupc++/Makefile.am: Remove custom targets for files that need to
        be compiled as C++11 or C++14.
        * libsupc++/Makefile.in: Regenerate.
        * libsupc++/del_ops.cc: Use pragma to disable -Wsized-deallocation
        warnings.
        * libsupc++/del_opvs.cc: Likewise.

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.

2017-06-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        (GLIBCXX_CROSSCONFIG): Handle *-solaris* like *-linux* etc.
        Remove *-solaris* section.
        * configure: Regenerate.

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.

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.

2017-05-24  Jonathan Wakely  <jwakely@redhat.com>

        * src/c++11/random.cc (random_device::_M_getentropy): Use __CHAR_BIT__
        instead of fixed number of bits.

2017-05-24  Andreas Schwab  <schwab@suse.de>

        * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Likewise.

2017-05-23  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>
            Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/67578
        * acinclude.m4: Bump libtool_VERSION.
        * config/abi/pre/gnu.ver: Create GLIBCXX_3.4.24 with new symbol.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * configure.ac: Add test for <linux/random.h>.
        * doc/xml/manual/abi.xml: Document new library version.
        * include/bits/random.h (random_device::entropy)
        [_GLIBCXX_USE_RANDOM_TR1]: Add call to new _M_getentropy member.
        (random_device::_M_getentropy): Declare.
        * src/c++11/random.cc (random_device::_M_getentropy): Define.
        * testsuite/util/testsuite_abi.cc: Add GLIBCXX_3.4.24 to known
        versions, and make it the latest version.

2017-05-23  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

        PR libstdc++/67214
        * include/bits/locale_facets.tcc (num_get::_M_extract_int): Add
        explicit conversion to avoid signed overflow.

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.

2017-05-17  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/refwrap.h: Fix Doxygen warning.
        * include/bits/specfun.h: Likewise.
        * include/bits/std_function.h: Likewise.
        * include/bits/stl_algo.h (set_union, set_intersection)
        (set_difference, set_symmetric_difference): Add Doxygen @param tags
        for output iterator parameters.
        * include/bits/stl_iterator.h (inserter): Add Doxygen @param tag for
        iterator parameter.
        * include/std/mutex (try_lock, lock): Change Mutex to Lockable in
        Doxygen comments.

2017-05-17  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement new C++ intrinsics __is_assignable and __is_constructible.
        * include/std/type_traits (__do_is_static_castable_impl): Remove.
        (__is_static_castable_impl, __is_static_castable_safe): Likewise.
        (__is_static_castable, __do_is_direct_constructible_impl): Likewise.
        (__is_direct_constructible_impl): Likewise.
        (__is_direct_constructible_new_safe): Likewise.
        (__is_base_to_derived_ref, __is_lvalue_to_rvalue_ref): Likewise.
        (__is_direct_constructible_ref_cast): Likewise.
        (__is_direct_constructible_new, __is_direct_constructible): Likewise.
        (__do_is_nary_constructible_impl): Likewise.
        (__is_nary_constructible_impl, __is_nary_constructible): Likewise.
        (__is_constructible_impl): Likewise.
        (is_constructible): Call the intrinsic.
        (__is_assignable_helper): Remove.
        (is_assignable): Call the intrinsic.
        (is_trivially_constructible): Likewise.
        (__is_trivially_copy_constructible_impl): New.
        (is_trivially_copy_constructible): Use it.
        (__is_trivially_move_constructible_impl): New.
        (is_trivially_move_constructible): Use it.
        (is_trivially_assignable): Call the intrinsic.
        (__is_trivially_copy_assignable_impl): New.
        (is_trivially_copy_assignable): Use it.
        (__is_trivially_move_assignable_impl): New.
        (is_trivially_move_assignable): Use it.
        (testsuite/20_util/declval/requirements/1_neg.cc): Adjust.
        (testsuite/20_util/is_trivially_copy_assignable/value.cc):
        Add test for void.
        (testsuite/20_util/is_trivially_copy_constructible/value.cc): Likewise.
        (testsuite/20_util/is_trivially_move_assignable/value.cc): Likewise.
        (testsuite/20_util/is_trivially_move_constructible/value.cc): Likewise.
        (testsuite/20_util/make_signed/requirements/typedefs_neg.cc): Adjust.
        (testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc):
        Likewise.

2017-05-16  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/experimental/source_location/1.cc: Change expected result
        for source_location::current() used in default member initializer.

        * 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.

        PR libstdc++/80285
        * include/bits/shared_ptr_base.h [!__cpp_rtti] (type_info): Declare
        outside versioned namespace.

        * configure: Regenerate.

2017-05-16  Marc Glisse  <marc.glisse@inria.fr>

        * include/std/optional (_Optional_base::_M_get): Check precondition.
        * testsuite/20_util/optional/cons/value_neg.cc: Update line numbers.

2017-05-16  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/appendix_contributing.xml: Link to test docs and
        note higher DejaGnu version requirement.
        * doc/html/*: Regenerate.

        * doc/xml/manual/appendix_contributing.xml: Link to the list of bad
        identifiers.
        * 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>): Only define partial
        specializations when tuple_size<T>::value is valid.
        * testsuite/20_util/tuple/78939.cc: New.
        * testsuite/20_util/tuple/cv_tuple_size_neg.cc: New.

2017-05-11  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_tree.h [_GLIBCXX_INLINE_VERSION]
        (_Rb_tree_impl<>): Remove _Is_pod_comparator
        template parameter.

        * include/debug/formatter.h [_GLIBCXX_INLINE_VERSION]
        (__gnu_debug::_Error_formatter::_Parameter::_M_print_field): Remove.
        (__gnu_debug::_Error_formatter::_Parameter::_M_print_description):
        Remove.
        (__gnu_debug::_Error_formatter::_M_format_word): Remove.
        (__gnu_debug::_Error_formatter::_M_print_word): Remove.
        (__gnu_debug::_Error_formatter::_M_print_string): Remove.
        (__gnu_debug::_Error_formatter::_M_get_max_length): Remove.
        * src/c++11/debug.cc: Adapt.
        * config/abi/pre/gnu-versioned-namespace.ver: Adapt.

2017-05-11  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/allocator.xml: Fix ViewCVS URLs.
        * doc/xml/manual/mt_allocator.xml: Likewise.
        * doc/html/*: Regenerate.

        PR libstdc++/80285
        * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Define
        function to get unique fake std::type_info reference.
        (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Compare to
        _S_ti() fake reference.
        (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Share
        single implementation with or without RTTI enable.
        [!__cpp_rtti]: Pass fake reference to _M_get_deleter.
        * testsuite/20_util/shared_ptr/creation/alloc.cc: Change expected
        allocation and deallocation counts.
        * testsuite/20_util/shared_ptr/creation/single_allocation.cc: New.
        * testsuite/20_util/shared_ptr/creation/single_allocation_no_rtti.cc:
        New.

2017-05-10  François Dumont  <fdumont@gcc.gnu.org>

        Bump version namespace.
        * config/abi/pre/gnu-versioned-namespace.ver: Bump version namespace
        from __7 to __8. Bump GLIBCXX_7.0 to GLIBCXX_8.0.
        * acinclude.m4 (libtool_VERSION): Bump to 8:0:0.
        * include/bits/c++config: Adapt.
        * include/bits/regex.h: Adapt.
        * include/experimental/bits/fs_fwd.h: Adapt.
        * include/experimental/bits/lfts_config.h: Adapt.
        * include/std/variant: Adapt.
        * python/libstdcxx/v6/printers.py: Adapt.
        * testsuite/libstdc++-prettyprinters/48362.cc: Adapt.

        * include/bits/stl_algobase.h (std::__iter_swap<false>): Remove
        _GLIBCXX_MOVE usage.

2017-05-09  Jason Merrill  <jason@redhat.com>

        * testsuite/24_iterators/container_access.cc (test03): Make il3 static.

2017-05-08  Jonathan Wakely  <jwakely@redhat.com>

        * include/std/optional: Use a separate static_assert per condition.
        * testsuite/20_util/optional/cons/value_neg.cc: Update dg-error line
        numbers.

        * doc/xml/manual/mt_allocator.xml: Clarify deallocation behaviour.
        * doc/html/*: Regenerate.

2017-05-02  Hugo Beauzée-Luyssen <hugo@beauzee.fr>

        PR libstdc++/69506
        * config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_WEAK_REF): Define.

2017-04-29  François Dumont  <fdumont@gcc.gnu.org>

        * testsuite/libstdc++-prettyprinters/48362.cc: Replace a regexp-test
        by a note-test.

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.

        * testsuite/17_intro/headers/c++1998/stdc++_assert_neg.cc: Remove
        superfluous "" in dg-error.

2017-04-28  Tom de Vries  <tom@codesourcery.com>

        * testsuite/17_intro/headers/c++1998/stdc++_assert_neg.cc: Remove
        superfluous '{ target *-*-* }' in dg-(error|warning|message|bogus).

2017-04-27  Jonathan Wakely  <jwakely@redhat.com>

        * include/ext/pb_ds/detail/list_update_map_/iterators_fn_imps.hpp
        (PB_DS_CLASS_C_DEC::end()): Remove redundant const in cast type.
        * testsuite/util/testsuite_rng.h (twister_rand_gen::get_prob()):
        Likewise.

2017-04-26  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/23_containers/deque/allocator/move_assign-2.cc: Improve
        comment. Ensure first test works because allocator type propagates and
        not because is_always_equal is true.
        * testsuite/23_containers/vector/52591.cc: Likewise. Restore original
        testcase that instantiates the move-assignment operator.

2017-04-24  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/80506
        * include/bits/random.tcc (gamma_distribution::operator()): Fix magic
        number used in loop condition.

        PR libstdc++/80504
        * include/bits/refwrap.h (ref, cref): Qualify calls.
        * testsuite/20_util/reference_wrapper/80504.cc: New test.

        PR libstdc++/80493
        * include/experimental/optional (optional::swap): Fix exception
        specification.

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.

        * include/backward/auto_ptr.h: Ignore deprecated warnings from use
        of auto_ptr.
        * include/bits/shared_ptr.h: Likewise.
        * include/bits/shared_ptr_base.h: Likewise.
        * include/bits/unique_ptr.h: Likewise.
        * libstdc++-v3/testsuite/20_util/default_delete/48631_neg.cc: Adjust
        dg-error lineno.
        * libstdc++-v3/testsuite/20_util/default_delete/void_neg.cc: Likewise.
        * libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc:
        Likewise.
        * libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc:
        Likewise.

2017-04-20  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.

2017-04-20  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/79862
        * include/std/atomic [!_GLIBCXX_USE_C99_STDINT_TR1] (atomic_int8_t)
        (atomic_uint8_t, atomic_int16_t, atomic_uint16_t, atomic_int32_t,
        (atomic_uint32_t, atomic_int64_t, atomic_uint64_t)
        (atomic_int_least8_t, atomic_uint_least8_t, atomic_int_least16_t)
        (atomic_uint_least16_t, atomic_int_least32_t, atomic_uint_least32_t)
        (atomic_int_least64_t, atomic_uint_least64_t, atomic_int_fast8_t)
        (atomic_uint_fast8_t, atomic_int_fast16_t, atomic_uint_fast16_t)
        (atomic_int_fast32_t, atomic_uint_fast32_t, atomic_int_fast64_t)
        (atomic_uint_fast64_t, atomic_intmax_t, atomic_uintmax_t): Don't
        define.

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.
\f
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