Make any's copy assignment operator exception-safe,

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

2016-10-10  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Make any's copy assignment operator exception-safe,
        don't copy the underlying value when any is moved,
        make in_place constructors explicit.
        * include/std/any (any(in_place_type_t<_ValueType>, _Args&&...)):
        Make explicit.
        (any(in_place_type_t<_ValueType>, initializer_list<_Up>, _Args&&...)):
        Likewise.
        (operator=(const any&)): Make strongly exception-safe.
        (operator=(any&&)): reset() unconditionally in the case where
        rhs has a value.
        (operator=(_ValueType&&)): Indent the return type.
        (_Manager_internal<_Tp>::_S_manage): Move in _Op_xfer, don't copy.
        * testsuite/20_util/any/assign/2.cc: Adjust.
        * testsuite/20_util/any/assign/exception.cc: New.
        * testsuite/20_util/any/cons/2.cc: Adjust.
        * testsuite/20_util/any/cons/explicit.cc: New.
        * testsuite/20_util/any/misc/any_cast_neg.cc: Ajust.

2016-10-10  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/appendix_contributing.xml (contrib.organization):
        Describe other subdirectories and add markup. Remove outdated
        reference to check-script target.
        * doc/html/*: Regenerate.

        * doc/xml/manual/status_cxx2011.xml: Correct C++11 status.

        * libsupc++/eh_ptr.cc (exception_ptr): Replace _GLIBCXX_USE_NOEXCEPT
        with noexcept.

        * include/std/functional (_Bind_result::__enable_if_void): Use alias
        template instead of class template.
        (_Bind_result::__disable_if_void): Likewise.
        (_Bind_result::__call): Adjust uses of __enable_if_void and
        __disable_if_void.

        * doc/xml/manual/intro.xml: Document DR 2296 status.
        * doc/xml/manual/status_cxx2017.xml: Update status.
        * include/bits/move.h (__addressof): Add _GLIBCXX_CONSTEXPR and
        call __builtin_addressof.
        (addressof): Add _GLIBCXX17_CONSTEXPR.
        * testsuite/20_util/addressof/requirements/constexpr.cc: New test.
        * testsuite/20_util/forward/c_neg.cc: Adjust dg-error lineno.
        * testsuite/20_util/forward/f_neg.cc: Likewise.

        * include/bits/allocator.h (allocator<T>::is_always_equal): Define.
        * testsuite/20_util/allocator/requirements/typedefs.cc: Test for
        is_always_equal.
        * testsuite/util/testsuite_allocator.h
        (uneq_allocator::is_always_equal): Define as false_type.

        * include/experimental/numeric (gcd, lcm): Make bool arguments
        ill-formed.
        * include/std/numeric (gcd, lcm): Likewise.
        * testsuite/26_numerics/gcd/gcd_neg.cc: New test.
        * testsuite/26_numerics/lcm/lcm_neg.cc: New test.

        * include/bits/shared_ptr.h (enable_shared_from_this::weak_from_this):
        Add noexcept.
        * include/bits/shared_ptr_base.h
        (__enable_shared_from_this::weak_from_this): Likewise.
        * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
        Test exception-specification of weak_from_this.

2016-10-07  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx1998.xml: Improve documentation of
        implementation-defined properties.
        * doc/xml/manual/status_cxx2011.xml: Likewise.
        * doc/xml/manual/status_cxx2017.xml: Likewise.

        * doc/xml/manual/status_cxx2017.xml: Update status.
        * include/std/type_traits (has_unique_object_representations): Define.
        * testsuite/20_util/has_unique_object_representations/value.cc: New.
        * testsuite/20_util/has_unique_object_representations/requirements/
        explicit_instantiation.cc: New.
        * testsuite/20_util/has_unique_object_representations/requirements/
        typedefs.cc: New.

2016-10-06  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2011.xml: Update status.
        * include/std/scoped_allocator (__outer_allocator_t, __outermost_type):
        New helpers for recursive OUTERMOST.
        (__outermost): Use __outermost_type::_S_outermost.
        (__do_outermost, scoped_allocator_adaptor::__outermost_type): Remove.
        (scoped_allocator_adaptor::__outermost_alloc_traits): Use new
        __outermost_type helper.
        (scoped_allocator_adaptor::_Constructible): New alias template.
        (scoped_allocator_adaptor::scoped_allocator_adaptor<_Outer2>):
        Constrain template constructors.
        * testsuite/20_util/scoped_allocator/3.cc: New test.
        * testsuite/20_util/scoped_allocator/outermost.cc: New test.

2016-10-05  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70564
        * testsuite/20_util/not_fn/1.cc: Fix test.
        * testsuite/experimental/functional/not_fn.cc: Likewise.

        PR libstdc++/70101
        * include/bits/stl_queue.h (priority_queue): Fix allocator-extended
        constructors.
        * testsuite/23_containers/priority_queue/allocator.cc: New test.

        PR libstdc++/77864
        * include/bits/stl_map.h (map::map()): Use nothrow constructibility
        of comparison function in conditional noexcept.
        * include/bits/stl_multimap.h (multimap::multimap()): Likewise.
        * include/bits/stl_multiset.h (multiset::multiset()): Likewise.
        * include/bits/stl_set.h (set::set()): Likewise.
        * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
        New test.
        * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
        Likewise.
        * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
        Likewise.
        * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
        Likewise.

        * include/bits/node_handle.h (_Node_handle): Remove invalid and unused
        alias declaration.

        PR libstdc++/70564
        * include/experimental/functional (_Not_fn): Remove.
        (not_fn): Use std::_Not_fn.
        * include/std/functional (_Not_fn): Add second parameter to
        disambiguate copying from initialization by not_fn. Define for C++14.
        (not_fn): Add second argument to initialization.
        * testsuite/20_util/not_fn/1.cc: Copy call wrapper using
        direct-initialization.

2016-10-03  François Dumont  <fdumont@gcc.gnu.org>

        * src/c++11/shared_ptr.cc (mask, invalid, get_mutex): Move
        declaration...
        * src/c++11/mutex_pool.h: ... here. New.
        * src/c++11/debug.cc: Use latter.

2016-10-03  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2017.xml: Update gcd/lcm status.
        * doc/html/*: Regenerate.
        * include/experimental/numeric (__abs): Move to <numeric>.
        (gcd, lcm): Use __detail::gcd and __detail::lcm.
        * include/std/numeric (__detail::__abs_integral)
        (__detail::__gcd, __detail::__lcm): Define.
        (gcd, lcm): Define for C++17.
        * testsuite/26_numerics/gcd/1.cc: New test.
        * testsuite/26_numerics/lcm/1.cc: New test.
        * testsuite/experimental/numeric/gcd.cc: Swap contents with ...
        * testsuite/experimental/numeric/lcd.cc: ... this.

        PR libstdc++/68323
        PR libstdc++/77794
        * config/abi/pre/gnu-versioned-namespace.ver: Add exports for
        __cxa_thread_atexit and __gnu_cxx::__freeres.
        * include/Makefile.am: Add <experimental/bits/lfts_config.h>
        * include/Makefile.in: Regenerate.
        * include.bits/basic_string.h: Fix nesting of versioned namespaces.
        * include/bits/c++config: Declare versioned namespaces for literals.
        * include/bits/regex.h (basic_regex, match_results): Add workarounds
        for PR c++/59256.
        * include/bits/uniform_int_dist.h: Fix nesting of versioned namespace.
        * include/std/chrono: Likewise.
        * include/std/complex: Likewise.
        * include/std/string_view: Likewise.
        * include/std/variant: Likewise. Add workaround for PR c++/59256.
        * include/experimental/bits/fs_fwd.h: Declare versioned namespace.
        * include/experimental/bits/lfts_config.h: Declare versioned
        namespaces.
        * include/experimental/algorithm: Include
        <experimental/bits/lfts_config.h>.
        * include/experimental/any: Likewise.
        * include/experimental/bits/erase_if.h: Likewise.
        * include/experimental/chrono: Likewise.
        * include/experimental/functional: Likewise.
        * include/experimental/memory_resource: Likewise.
        * include/experimental/optional: Likewise.
        * include/experimental/propagate_const: Likewise.
        * include/experimental/random: Likewise.
        * include/experimental/ratio: Likewise.
        * include/experimental/system_error: Likewise.
        * include/experimental/tuple: Likewise.
        * include/experimental/type_traits: Likewise.
        * include/experimental/utility: Likewise.
        * include/experimental/string_view: Likewise. Fix nesting of
        versioned namespaces.
        * include/experimental/bits/string_view.tcc: Reopen inline namespace
        for non-inline function definitions.
        * testsuite/17_intro/using_namespace_std_exp_neg.cc: New test.
        * testsuite/20_util/duration/literals/range.cc: Adjust dg-error line.
        * testsuite/experimental/any/misc/any_cast_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.
        * testsuite/ext/profile/mutex_extensions_neg.cc: Likewise.

        PR libstdc++/77814
        * include/bits/std_abs.h: Use "C++" language linkage.
        * testsuite/17_intro/headers/c++2011/linkage.cc: Move <complex.h> to
        the end. Add <stdalign.h>.

2016-10-03  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77802
        * testsuite/20_util/tuple/77802.cc: New.

        Revert:
        2016-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>
        Implement LWG 2729 for tuple.
        * include/std/tuple (_Tuple_impl(_Tuple_impl&&)):
        Suppress conditionally.
        (_Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&&)): Likewise.
        (__is_tuple_impl_trait_impl, __is_tuple_impl_trait): New.
        (_Tuple_impl(const _Head&)): Constrain.
        (_Tuple_impl(_UHead&&)): Likewise.
        (_Tuple_impl(_Tuple_impl&&)): Suppress conditionally.
        (_Tuple_impl(const _Tuple_impl<_Idx, _UHead>&)): Constrain.
        (_Tuple_impl(_Tuple_impl<_Idx, _UHead>&&)): Likewise.
        (operator=(const tuple&)): Enable conditionally.
        (operator=(tuple&&)): Suppress conditionally.
        (operator=(const tuple<_UElements...>&)): Constrain.
        (operator=(tuple<_UElements...>&&)): Likewise.
        (operator=(const tuple&)): Enable conditionally (2-param tuple).
        (operator=(tuple&&)): Suppress conditionally (2-param tuple).
        (operator=(const tuple<_U1, _U2>&)): Constrain.
        (operator=(tuple<_U1, _U2>&&)): Likewise.
        (operator=(const pair<_U1, _U2>&)): Likewise.
        (operator=(pair<_U1, _U2>&&)): Likewise.
        * testsuite/20_util/tuple/element_access/get_neg.cc: Adjust.
        * testsuite/20_util/tuple/tuple_traits.cc: New.

2016-09-30  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/77795
        * acinclude.m4 (GLIBCXX_CHECK_STDIO_PROTO): Use -std=gnu++11 to check
        for gets.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * include/c_global/cstdio [!_GLIBCXX_HAVE_GETS] (gets): Only declare
        for C++98 and C++11.
        * include/c_std/cstdio [!_GLIBCXX_HAVE_GETS] (gets): Likewise.
        * testsuite/27_io/headers/cstdio/functions_neg.cc: New test.

        * doc/xml/manual/intro.xml: Document LWG 2192 changes.
        * doc/html/*: Regenerate.
        * include/Makefile.am: Add bits/std_abs.h.
        * include/Makefile.in: Regenerate.
        * include/bits/std_abs.h: New header defining all required overloads
        of std::abs in one place (LWG 2294).
        * include/c_global/cmath (abs(double), abs(float), abs(long double)):
        Move to bits/std_abs.h.
        (abs<_Tp>(_Tp)): Remove.
        * include/c_global/cstdlib (abs(long), abs(long long), abs(__int<N>)):
        Move to bits/std_abs.h.
        * testsuite/26_numerics/headers/cmath/dr2192.cc: New test.
        * testsuite/26_numerics/headers/cmath/dr2192_neg.cc: New test.
        * testsuite/26_numerics/headers/cstdlib/dr2192.cc: New test.
        * testsuite/26_numerics/headers/cstdlib/dr2192_neg.cc: New test.

        PR libstdc++/77801
        * include/experimental/numeric: Include <numeric>.
        (__abs): Define.
        (gcd, lcm): Use __abs instead of std::abs.
        * testsuite/experimental/numeric/77801.cc: New test.
        * testsuite/experimental/numeric/gcd.cc: Test unsigned inputs.
        * testsuite/experimental/numeric/lcm.cc: Likewise.

2016-09-29  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Make optional::reset noexcept, make optional::value
        work in constant expressions.
        * include/std/optional (_M_get): Make constexpr.
        (reset): Make noexcept.
        * testsuite/20_util/optional/assignment/7.cc: New.
        * testsuite/20_util/optional/observers/6.cc: New.

2016-09-29  Jonathan Wakely  <jwakely@redhat.com>

        * include/c_global/cmath (hypot, __hypot3): Move C++17 overloads
        outside _GLIBCXX_USE_C99_MATH_TR1 condition.

2016-09-29  Alan Modra  <amodra@gmail.com>

        * configure.ac (LONG_DOUBLE_COMPAT_FLAGS): New ACSUBST.
        * src/Makefile.am (compatibility-ldbl.o, compatibility-ldbl.lo):
        Use LONG_DOUBLE_COMPAT_FLAGS.
        * Makefile.in: Regenerate.
        * configure: Regenerate.
        * doc/Makefile.in: Regenerate.
        * include/Makefile.in: Regenerate.
        * libsupc++/Makefile.in: Regenerate.
        * po/Makefile.in: Regenerate.
        * python/Makefile.in: Regenerate.
        * src/Makefile.in: Regenerate.
        * src/c++11/Makefile.in: Regenerate.
        * src/c++98/Makefile.in: Regenerate.
        * src/filesystem/Makefile.in: Regenerate.
        * testsuite/Makefile.in: Regenerate.

2016-09-28  Jonathan Wakely  <jwakely@redhat.com>

        * include/std/chrono (system_clock): Fix typo in comment.

        * include/experimental/bits/fs_fwd.h (file_time_type): Simplify
        definition.
        * src/filesystem/ops.cc (file_time): Take error_code parameter and
        check for overflow.
        (do_copy_file, last_write_time): Pass error_code in file_time calls.
        * testsuite/experimental/filesystem/operations/last_write_time.cc:
        New.
        * testsuite/util/testsuite_fs.h (scoped_file): Define RAII helper.

        PR libstdc++/77686
        * include/std/functional (_Any_data): Add may_alias attribute.

2016-09-27  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2017.xml: Update status.
        * doc/html/*: Regenerate.
        * include/std/functional (__cpp_lib_boyer_moore_searcher): Define.
        * testsuite/20_util/function_objects/searchers.cc: Test feature macro.

        * doc/xml/manual/status_cxx2017.xml: Update status.
        * include/c_global/cmath (hypot): Add three-dimensional overloads.
        * testsuite/26_numerics/headers/cmath/hypot.cc: New.

2016-09-26  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77727
        * include/std/optional (optional(const optional<_Up>&)):
        Default-initialize the base and use emplace.
        (optional(optional<_Up>&&)): Likewise.
        * testsuite/20_util/optional/cons/77727.cc: New.

2016-09-26  François Dumont  <fdumont@gcc.gnu.org>

        * include/debug/safe_base.h
        (_Safe_iterator_base::_M_detach_single): Make public.

2016-09-26  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/range_access.h (__cpp_lib_array_constexpr): Do not
        redefine macro defined in <bits/stl_iterator.h>.

        * include/bits/stl_map.h (map::extract(const_iterator)): Assert that
        iterator is not past-the-end.
        * include/bits/stl_multimap.h (multimap::extract(const_iterator)):
        Likewise.
        * include/bits/stl_multiset.h (multiset::extract(const_iterator)):
        Likewise.
        * include/bits/stl_set.h (set::extract(const_iterator)): Likewise.
        * include/bits/unordered_map.h (unordered_map::extract(const_iterator))
        (unordered_multimap::extract(const_iterator)): Likewise.
        * include/bits/unordered_set.h (unordered_set::extract(const_iterator))
        (unordered_multiset::extract(const_iterator)): Likewise.

2016-09-26  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77717
        * testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
        Fix an out-of-bounds access.

2016-09-26  Marek Polacek  <polacek@redhat.com>

        PR c/7652
        * libsupc++/hash_bytes.cc: Add [[gnu::fallthrough]].

2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

        * src/c++11/debug.cc: Include debug/vector. Include cctype. Remove
        functional.
        (get_safe_base_mutex): Get mutex based on address lowest non nil bits.
        * testsuite/23_containers/vector/debug/mutex_association.cc: New.

        * include/debug/bitset (bitset::reference::reference(const _Base_ref&,
        bitset*)): Remove __unused__ attribute.
        * include/debug/safe_base.h (_Safe_iterator_base): Make
        _Safe_sequence_base a friend.
        (_Safe_iterator_base::_M_attach): Make protected.
        (_Safe_iterator_base::_M_attach_single): Likewise.
        (_Safe_iterator_base::_M_detach): Likewise.
        (_Safe_iterator_base::_M_detach_single): Likewise.
        (_Safe_sequence_base): Make _Safe_iterator_base a friend.
        (_Safe_sequence_base::_Safe_sequence_base(_Safe_sequence_base&&)): New.
        (_Safe_sequence_base::_M_swap): Make protected.
        (_Safe_sequence_base::_M_attach): Make private.
        (_Safe_sequence_base::_M_attach_single): Likewise.
        (_Safe_sequence_base::_M_detach): Likewise.
        (_Safe_sequence_base::_M_detach_single): Likewise.
        * include/debug/safe_container.h
        (_Safe_container::_Safe_container(_Safe_container&&)): Make default.
        * include/debug/safe_iterator.h
        (_Safe_iterator::operator++()): Name __scoped_lock instance.
        * include/debug/safe_iterator.tcc: Remove trailing line.
        * include/debug/safe_unordered_base.h
        (_Safe_local_iterator_base::_M_attach): Make protected.
        (_Safe_local_iterator_base::_M_attach_single): Likewise.
        (_Safe_local_iterator_base::_M_detach): Likewise.
        (_Safe_local_iterator_base::_M_detach_single): Likewise.
        (_Safe_unordered_container_base): Make _Safe_local_iterator_base friend.
        (_Safe_unordered_container_base::_M_attach_local): Make private.
        (_Safe_unordered_container_base::_M_attach_local_single): Likewise.
        (_Safe_unordered_container_base::_M_detach_local): Likewise.
        (_Safe_unordered_container_base::_M_detach_local_single): Likewise.

        * include/parallel/algo.h: Generalize usage of std::__iterator_category.
        Adjust whitespaces.

2016-09-23  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/56166
        PR libstdc++/77582
        * include/bits/basic_string.h (basic_string::clear()): Drop reference
        and use empty rep.
        * include/ext/rc_string_base.h (__rc_string_base::_M_clear()):
        Likewise.
        * testsuite/21_strings/basic_string/56166.cc: New.
        * testsuite/ext/vstring/modifiers/clear/56166.cc: New.

        * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
        (basic_string::erase(size_type, size_type)): Add fast path for
        truncating the string, by calling _M_set_length directly.
        (basic_string::erase(__const_iterator, __const_iterator)): Likewise.
        * include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI]
        (basic_string::resize(size_type, _CharT)): Likewise.

2016-09-22  Jason Merrill  <jason@redhat.com>

        * configure.ac: Define HAVE_MEMALIGN for newlib.

2015-09-23  Sebastian Huber  <sebastian.huber@embedded-brains.de>

        * config/cpu/m68k/atomicity.h: Adjust comment.
        * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Honor
        explicit atomicity_dir setup via configure.host.
        * configure.host (rtems-*): Set atomicity_dir.
        * configure: Regenerate.

2016-09-22  Jonathan Wakely  <jwakely@redhat.com>

        Implement C++17 node extraction and insertion (P0083R5)
        * doc/xml/manual/status_cxx2017.xml: Document status.
        * doc/html/*: Regenerate.
        * include/Makefile.am: Add bits/node_handle.h and reorder.
        * include/Makefile.in: Regenerate.
        * include/bits/hashtable.h (_Hashtable::node_type)
        (_Hashtable::insert_return_type, _Hashtable::_M_reinsert_node)
        (_Hashtable::_M_reinsert_node_multi, _Hashtable::extract)
        (_Hashtable::_M_merge_unique, _Hashtable::_M_merge_multi): Define.
        (_Hash_merge_helper): Define primary template.
        * include/bits/node_handle.h: New header.
        * include/bits/stl_map.h (map): Declare _Rb_tree_merge_helper as
        friend.
        (map::node_type, map::insert_return_type, map::extract, map::merge)
        (map::insert(node_type&&), map::insert(const_iterator, node_type&&)):
        Define new members.
        (_Rb_tree_merge_helper): Specialize for map.
        * include/bits/stl_multimap.h (multimap): Declare _Rb_tree_merge_helper
        as friend.
        (multimap::node_type, multimap::extract, multimap::merge)
        (multimap::insert(node_type&&))
        (multimap::insert(const_iterator, node_type&&)): Define.
        (_Rb_tree_merge_helper): Specialize for multimap.
        * include/bits/stl_multiset.h (multiset): Declare _Rb_tree_merge_helper
        as friend.
        (multiset::node_type, multiset::extract, multiset::merge)
        (multiset::insert(node_type&&))
        (multiset::insert(const_iterator, node_type&&)): Define.
        * include/bits/stl_set.h (set): Declare _Rb_tree_merge_helper as
        friend.
        (set::node_type, set::insert_return_type, set::extract, set::merge)
        (set::insert(node_type&&), set::insert(const_iterator, node_type&&)):
        Define.
        (_Rb_tree_merge_helper): Specialize for set.
        * include/bits/stl_tree.h (_Rb_tree): Declare _Rb_tree<> as friend.
        (_Rb_tree::node_type, _Rb_tree::insert_return_type)
        (_Rb_tree::_M_reinsert_node_unique, _Rb_tree::_M_reinsert_node_equal)
        (_Rb_tree::_M_reinsert_node_hint_unique)
        (_Rb_tree::_M_reinsert_node_hint_equal, _Rb_tree::extract)
        (_Rb_tree::_M_merge_unique, _Rb_tree::_M_merge_equal): Define.
        (_Rb_tree_merge_helper): Specialize for multiset.
        * include/bits/unordered_map.h (unordered_map): Declare
        unordered_map<> and unordered_multimap<> as friends.
        (unordered_map::node_type, unordered_map::insert_return_type)
        (unordered_map::extract, unordered_map::merge)
        (unordered_map::insert(node_type&&))
        (unordered_map::insert(const_iterator, node_type&&))
        (unordered_multimap): Declare _Hash_merge_helper as friend.
        (unordered_multimap::node_type, unordered_multimap::extract)
        (unordered_multimap::merge, unordered_multimap::insert(node_type&&))
        (unordered_multimap::insert(const_iterator, node_type&&)): Define.
        (_Hash_merge_helper): Specialize for unordered maps and multimaps.
        * include/bits/unordered_set.h (unordered_set, unordered_multiset):
        Declare _Hash_merge_helper as friend.
        (unordered_set::node_type, unordered_set::insert_return_type)
        (unordered_set::extract, unordered_set::merge)
        (unordered_set::insert(node_type&&))
        (unordered_set::insert(const_iterator, node_type&&)): Define.
        (unordered_multiset::node_type, unordered_multiset::extract)
        (unordered_multiset::merge, unordered_multiset::insert(node_type&&))
        (unordered_multiset::insert(const_iterator, node_type&&)): Define.
        (_Hash_merge_helper): Specialize for unordered sets and multisets.
        * include/debug/map.h (map): Add using declarations or forwarding
        functions for new members.
        * include/debug/map.h (multimap): Likewise.
        * include/debug/map.h (multiset): Likewise.
        * include/debug/map.h (set): Likewise.
        * include/debug/unordered_map (unordered_map, unordered_multimap):
        Likewise.
        * include/debug/unordered_set( unordered_set, unordered_multiset):
        Likewise.
        * python/libstdcxx/v6/printers.py (get_value_from_aligned_membuf): New
        helper function.
        (get_value_from_list_node, get_value_from_Rb_tree_node): Use helper.
        (StdNodeHandlePrinter): Define printer for node handles.
        (build_libstdcxx_dictionary): Register StdNodeHandlePrinter.
        * testsuite/23_containers/map/modifiers/extract.cc: New.
        * testsuite/23_containers/map/modifiers/merge.cc: New.
        * testsuite/23_containers/multimap/modifiers/extract.cc: New.
        * testsuite/23_containers/multimap/modifiers/merge.cc: New.
        * testsuite/23_containers/multiset/modifiers/extract.cc: New.
        * testsuite/23_containers/multiset/modifiers/merge.cc: New.
        * testsuite/23_containers/set/modifiers/extract.cc: New.
        * testsuite/23_containers/set/modifiers/merge.cc: New.
        * testsuite/23_containers/unordered_map/modifiers/extract.cc: New.
        * testsuite/23_containers/unordered_map/modifiers/merge.cc: New.
        * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
        New.
        * testsuite/23_containers/unordered_multimap/modifiers/merge.cc: New.
        * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
        New.
        * testsuite/23_containers/unordered_multiset/modifiers/merge.cc: New.
        * testsuite/23_containers/unordered_set/modifiers/extract.cc: New.
        * testsuite/23_containers/unordered_set/modifiers/merge.cc: New.
        * testsuite/23_containers/unordered_set/instantiation_neg.cc: Adjust
        dg-error lineno.
        * testsuite/libstdc++-prettyprinters/cxx17.cc: Test node handles.

2016-09-22  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Fix tests on old arm platforms for optional.
        * testsuite/20_util/optional/77288.cc: Don't use exception_ptr.

2016-09-22  Jonathan Wakely  <jwakely@redhat.com>

        * python/libstdcxx/v6/printers.py (StdVariantPrinter): Adjust for
        recent change to _Variant_storage.
        * testsuite/libstdc++-prettyprinters/cxx17.cc: Test variant with
        reference type.

        * include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
        std::forward and ::new. Cast pointer to void*.
        * include/std/variant (_Variant_storage, _Union, _Variant_base)
        (__access, __visit_invoke, variant, visit): Qualify std::forward.
        * testsuite/20_util/variant/compile.cc: Test for ADL problems.

2016-09-22  Tim Shen  <timshen@google.com>

        * include/std/variant (variant::operator=): Fix assignment
        on references.
        * testsuite/20_util/variant/compile.cc: Add test.

2016-09-22  Tim Shen  <timshen@google.com>

        PR libstdc++/77641
        * include/std/variant (_Variant_storage::_Variant_storage):
        Change _Variant_storage's union to be default constructible.
        * testsuite/20_util/variant/compile.cc: New test.

2016-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77288
        * include/std/optional (__is_optional_impl, __is_optional): Remove.
        (__converts_from_optional, __assigns_from_optional): New.
        (optional(_Up&&)): Use is_same instead of __is_optional.
        (optional(const optional<_Up>&)): Constrain with
        __converts_from_optional.
        (optional(optional<_Up>&&)): Likewise.
        (operator=(_Up&&)): Use is_same instead of __is_optional, check
        is_same and is_scalar.
        (operator=(const optional<_Up>&)): Constrain with
        __converts_from_optional and __assigns_from_optional.
        (operator=(optional<_Up>&&)): Likewise.
        * testsuite/20_util/optional/77288.cc: New.
        * testsuite/20_util/optional/cons/value.cc: Adjust.

2016-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement LWG 2729 for tuple.
        * include/std/tuple (_Tuple_impl(_Tuple_impl&&)):
        Suppress conditionally.
        (_Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&&)): Likewise.
        (__is_tuple_impl_trait_impl, __is_tuple_impl_trait): New.
        (_Tuple_impl(const _Head&)): Constrain.
        (_Tuple_impl(_UHead&&)): Likewise.
        (_Tuple_impl(_Tuple_impl&&)): Suppress conditionally.
        (_Tuple_impl(const _Tuple_impl<_Idx, _UHead>&)): Constrain.
        (_Tuple_impl(_Tuple_impl<_Idx, _UHead>&&)): Likewise.
        (operator=(const tuple&)): Enable conditionally.
        (operator=(tuple&&)): Suppress conditionally.
        (operator=(const tuple<_UElements...>&)): Constrain.
        (operator=(tuple<_UElements...>&&)): Likewise.
        (operator=(const tuple&)): Enable conditionally (2-param tuple).
        (operator=(tuple&&)): Suppress conditionally (2-param tuple).
        (operator=(const tuple<_U1, _U2>&)): Constrain.
        (operator=(tuple<_U1, _U2>&&)): Likewise.
        (operator=(const pair<_U1, _U2>&)): Likewise.
        (operator=(pair<_U1, _U2>&&)): Likewise.
        * testsuite/20_util/tuple/element_access/get_neg.cc: Adjust.
        * testsuite/20_util/tuple/tuple_traits.cc: New.

2016-09-21  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77537
        Implement LWG 2729 for pair.
        * include/bits/stl_pair.h (_PCC): New.
        (_ConstructiblePair, _ImplicitlyConvertiblePair):
        Turn into static member functions of _PCC.
        (_MoveConstructiblePair, _ImplicitlyMoveConvertiblePair): Likewise.
        (_PCCP): New.
        (pair(const _T1&, const _T2&)): Adjust.
        (_PCCFP): New.
        (pair(const pair<_U1, _U2>&)): Adjust.
        (pair(_U1&&, const _T2&)): Likewise.
        (pair(const _T1&, _U2&&)): Likewise.
        (pair(_U1&&, _U2&&)): Likewise.
        (pair(pair<_U1, _U2>&&)): Likewise.
        (operator=(const pair&)): Make conditionally deleted.
        (operator=(pair&&)): Make conditionally suppressed.
        (operator=(const pair<_U1, _U2>&)): Constrain.
        (operator=(pair<_U1, _U2>&&): Likewise.
        * include/std/type_traits (__nonesuch): New.
        * testsuite/20_util/pair/traits.cc: New.

2016-09-20  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77619
        * include/bits/stl_construct.h: (_Construct_novalue): New.
        (_Destroy_n_aux, _Destroy_n): New.
        * include/bits/stl_uninitialized.h: (type_traits):
        New include in C++11 mode.
        (__uninitialized_default_novalue_1): New.
        (__uninitialized_default_novalue_n_1): Likewise.
        (__uninitialized_default_novalue): Likewise.
        (__uninitialized_default_novalue_n): Likewise.
        (__uninitialized_copy_n_pair): Likewise.
        (uninitialized_default_construct):
        Use __uninitialized_default_novalue.
        (uninitialized_default_construct_n):
        Use __uninitialized_default_novalue_n.
        (uninitialized_value_construct): Use __uninitialized_default.
        (uninitialized_value_construct_n): Use __uninitialized_default_n.
        (uninitialized_move): Use uninitialized_copy.
        (uninitialized_move_n): Use __uninitialized_copy_n_pair.
        (destroy_at): Use _Destroy.
        (destroy): Likewise.
        (destroy_n): Likewise.
        * testsuite/20_util/specialized_algorithms/
        memory_management_tools/1.cc: Add tests for exceptions,
        add tests for trivial cases for construct and move.

2016-09-20  Jonathan Wakely  <jwakely@redhat.com>

        * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.__init__)
        (DequeWorkerBase.index, VectorWorkerBase.get): Use // for division.

2016-09-19  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/77645
        * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.__init__)
        (DequeWorkerBase.index, VectorWorkerBase.get): Cast results of
        division to int to work with Python 3.

        * testsuite/lib/gdb-test.exp (gdb-test): Fail if Python error occurs.

        * python/libstdcxx/v6/printers.py (SingleObjContainerPrinter): Allow
        display_hint to be set by subclasses.
        (StdVariantPrinter): Use array for display_hint. Adjust output to be
        more similar to std::any and std::optional output.
        (register_type_printers): Add type printers for basic_string_view
        typedefs and experimental::any. Adjust type printers for
        fundamentals_v1 templates to match fundamentals_v2 and later.
        * testsuite/libstdc++-prettyprinters/cxx17.cc: New.

        PR libstdc++/77645
        * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index): Rename
        argument.
        (ListWorkerBase.get_value_from_node): Define new method.
        (ListFrontWorker.__call__, ListBackWorker.__call__): Use it.

2016-09-17  Jonathan Wakely  <jwakely@redhat.com>

        * python/libstdcxx/v6/printers.py (StdVariantPrinter): Define.
        (StdExpAnyPrinter, StdExpOptionalPrinter, StdExpStringViewPrinter):
        Register for C++17 components in namespace std. Strip inline namespace
        from typename.

2016-09-16  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/profile_mode.xml: Fix typo.
        * doc/html/manual/profile_mode_devel.html: Regenerate.

2016-09-16  Jonathan Wakely  <jwakely@redhat.com>
            Marc Glisse  <marc.glisse@inria.fr>

        * libsupc++/new_opa.cc [_GLIBCXX_HAVE_ALIGNED_ALLOC]
        (operator new(size_t, align_val_t)): Replace modulus operator with
        mask.

2016-09-16  Jonathan Wakely  <jwakely@redhat.com>

        * libsupc++/new_opa.cc [_GLIBCXX_HAVE_POSIX_MEMALIGN] (aligned_alloc):
        Increase alignment if less than sizeof(void*).
        [_GLIBCXX_HAVE_ALIGNED_ALLOC] (operator new(size_t, align_val_t)):
        Increase size if not a multiple of alignment.

2016-09-15  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/debug_mode.xml: Minor editorial fixes.
        * doc/html/*: Regenerate.

        * testsuite/23_containers/vector/debug/insert6_neg.cc: Remove
        -Wno-deprecated.
        * testsuite/util/debug/checks.h (generate_unique<bool>): Specialize.

2016-09-14  Marek Polacek  <polacek@redhat.com>

        * testsuite/23_containers/vector/debug/insert6_neg.cc: Use
        -Wno-deprecated.

2016-09-14  Christophe Lyon  <christophe.lyon@linaro.org>

        * testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
        Move dg-do directive before dg-skip.
        * testsuite/21_strings/debug/iterator_self_move_assign_neg.cc:
        Move dg-do directive before dg-require.
        * testsuite/21_strings/debug/self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/57779_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/60587_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/assign1_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/assign2_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/assign3_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/insert5_neg.cc: Likewise.
        * testsuite/25_algorithms/lower_bound/debug/irreflexive.cc: Likewise.
        * testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
        Likewise.
        * testsuite/25_algorithms/pop_heap/empty2_neg.cc: Likewise.
        * testsuite/25_algorithms/pop_heap/empty_neg.cc: Likewise.
        * testsuite/27_io/objects/char/12048-5.cc: Likewise.
        * testsuite/ext/special_functions/conf_hyperg/check_nan.cc: Likewise.
        * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.

2016-09-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement P0040R3, Extending memory management tools.
        * include/bits/stl_uninitialized.h (utility): New include
        in C++17 mode.
        (uninitialized_default_construct): New.
        (uninitialized_default_construct_n): Likewise.
        (uninitialized_value_construct): Likewise.
        (uninitialized_value_construct_n): Likewise.
        (uninitialized_move): Likewise.
        (uninitialized_move_n): Likewise.
        (destroy_at, destroy, destroy_n): Likewise.
        * testsuite/20_util/specialized_algorithms/memory_management_tools/
        1.cc: New.

2016-09-12  Jason Merrill  <jason@redhat.com>

        * config/abi/pre/gnu.ver: Use [jmy] for size_t.

2016-09-12  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement P0253R1, Fixing a design mistake in the searchers
        interface in Library Fundamentals.
        * include/std/functional: (utility): New include in C++17 mode.
        (default_searcher): Use a pair as return type, adjust the definition.
        (boyer_moore_searcher): Likewise.
        (boyer_moore_horspool_searcher): Likewise.
        * testsuite/20_util/function_objects/searchers.cc: Adjust.

2016-09-12  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement C++17 string searchers.
        * include/std/functional: (unordered_map, vector): New includes
        in C++17 mode.
        (array, bits/stl_algo.h): Likewise.
        (default_searcher, __boyer_moore_map_base): New.
        (__boyer_moore_array_base, __is_std_equal_to): Likewise.
        (__boyer_moore_base_t, boyer_moore_searcher): Likewise.
        (boyer_moore_horspool_searcher, make_default_searcher): Likewise.
        (make_boyer_moore_searcher): Likewise.
        (make_boyer_moore_horspool_searcher): Likewise.
        * testsuite/20_util/function_objects/searchers.cc: New.

2016-09-12  Matthew Wahab  <matthew.wahab@arm.com>

        * testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
        Move dg-do directive before dg-require.
        * testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc: Likewise.
        * testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
        Likewise.
        * testsuite/22_locale/codecvt/utf8.cc: Likewise.
        * testsuite/22_locale/locale/cons/unicode.cc: Likewise.
        * testsuite/23_containers/deque/debug/assign1_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/assign2_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/assign3_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/insert5_neg.cc: Likewise.
        * testsuite/23_containers/deque/debug/iterator_self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/deque/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/deque/debug/shrink_to_fit.cc: Likewise.
        * testsuite/23_containers/forward_list/debug/60499.cc: Likewise.
        * testsuite/23_containers/forward_list/debug/construct1_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/construct2_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/construct3_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after1_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after2_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after3_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after4_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after5_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after6_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after7_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after8_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/erase_after9_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/insert_after1_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/insert_after2_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/insert_after3_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/insert_after4_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/forward_list/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after1_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after2_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after3_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after4_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after5_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after6_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/debug/splice_after7_neg.cc:
        Likewise.
        * testsuite/23_containers/list/debug/assign1_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/assign2_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/assign3_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/insert5_neg.cc: Likewise.
        * testsuite/23_containers/list/debug/iterator_self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/list/debug/self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/60499.cc: Likewise.
        * testsuite/23_containers/map/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/map/debug/iterator_self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/map/debug/self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/60499.cc: Likewise.
        * testsuite/23_containers/multimap/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/multimap/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/multiset/debug/60499.cc: Likewise.
        * testsuite/23_containers/multiset/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/multiset/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/set/debug/60499.cc: Likewise.
        * testsuite/23_containers/set/debug/construct1_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/construct2_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/construct3_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/set/debug/iterator_self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/set/debug/self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/60499.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/begin1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/begin2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/bucket_size_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/cbegin_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/cend_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/construct1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/construct2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/construct3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/end1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/end2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/
        invalid_local_iterator_compare_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/
        invalid_local_iterator_range_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/max_load_factor_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_map/debug/
        use_erased_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/
        use_invalid_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_map/debug/
        use_invalid_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/60499.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/begin1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/begin2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/bucket_size_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/cbegin_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/cend_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/construct1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/construct2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/construct3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/end1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/end2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/insert1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/insert2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/insert3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        invalid_local_iterator_compare_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        invalid_local_iterator_range_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        max_load_factor_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        use_erased_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        use_invalid_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/debug/
        use_invalid_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/60499.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/begin1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/begin2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/bucket_size_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/cbegin_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/cend_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/construct1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/construct2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/construct3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/end1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/end2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/insert1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/insert2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/insert3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        invalid_local_iterator_compare_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        invalid_local_iterator_range_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        max_load_factor_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        use_erased_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        use_invalid_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_multiset/debug/
        use_invalid_local_iterator_neg.cc: Likewise.
        *  testsuite/23_containers/unordered_set/debug/60499.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/begin1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/begin2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/bucket_size_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/debug/cbegin_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/cend_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/construct1_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/debug/construct2_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/debug/construct3_neg.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/debug/end1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/end2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/insert1_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/insert2_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/insert3_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        invalid_local_iterator_compare_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        invalid_local_iterator_range_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        max_load_factor_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        use_erased_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        use_invalid_iterator_neg.cc: Likewise.
        * testsuite/23_containers/unordered_set/debug/
        use_invalid_local_iterator_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/52433.cc: Likewise.
        * testsuite/23_containers/vector/debug/60499.cc: Likewise.
        * testsuite/23_containers/vector/debug/bool/shrink_to_fit.cc: Likewise.
        * testsuite/23_containers/vector/debug/
        iterator_self_move_assign_neg.cc: Likewise.
        * testsuite/23_containers/vector/debug/self_move_assign_neg.cc:
        Likewise.
        * testsuite/23_containers/vector/debug/shrink_to_fit.cc: Likewise.
        * testsuite/25_algorithms/pop_heap/complexity.cc: Likewise.
        * testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
        * testsuite/25_algorithms/sort_heap/complexity.cc: Likewise.
        * testsuite/29_atomics/atomic/60658.cc: Likewise.
        * testsuite/29_atomics/atomic/60695.cc: Likewise.
        * testsuite/29_atomics/atomic/62259.cc: Likewise.
        * testsuite/29_atomics/atomic/64658.cc: Likewise.
        * testsuite/29_atomics/atomic/cons/49445.cc: Likewise.
        * testsuite/29_atomics/atomic/operators/51811.cc: Likewise.
        * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
        Likewise.

2016-09-11  Jonathan Wakely  <jwakely@redhat.com>

        * libsupc++/new_opant.cc: Include exception_defines.h.
        * libsupc++/new_opvant.cc: Likewise.

2016-09-09  Jason Merrill  <jason@redhat.com>

        Implement P0035R4, C++17 new of over-aligned types.
        * libsupc++/new: Declare aligned new/delete operators.
        * config/abi/pre/gnu.ver: Export them.
        * configure.ac: Check for aligned_alloc, posix_memalign, memalign,
        _aligned_malloc.
        * libsupc++/new_opa.cc: New.
        * libsupc++/new_opant.cc: New.
        * libsupc++/new_opva.cc: New.
        * libsupc++/new_opva.cc: New.
        * libsupc++/del_opa.cc: New.
        * libsupc++/del_opant.cc: New.
        * libsupc++/del_opsa.cc: New.
        * libsupc++/del_opva.cc: New.
        * libsupc++/del_opvant.cc: New.
        * libsupc++/del_opvsa.cc: New.
        * libsupc++/Makefile.am: Build them.

2016-09-05  Tim Shen  <timshen@google.com>

        * include/std/variant: include bits/move.h for std::addressof.

2016-09-05  Mikhail Strelnikov  <mikhail.strelnikov@gmail.com>

        * include/std/variant (_Variant_storage::_M_storage()): Use
        std::addressof instead of operator& to take address.

2016-09-02  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

        * acinclude.m4 (GLIBCXX_CONFIGURE_TESTSUITE): Check for presence of
        setrlimit on both native and cross targets.
        * configure: Regenerate.

2016-08-31  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/shared_ptr.h (_Assignable): New alias template.
        (shared_ptr::operator=(const shared_ptr<_Tp1>&))
        (shared_ptr::operator=(shared_ptr<_Tp1>&&))
        (shared_ptr::operator=(unique_ptr<_Tp1>&&)): Constrain with
        _Assignable.
        * include/bits/shared_ptr_base.h (_Assignable): New alias template.
        (__shared_ptr::operator=(const __shared_ptr<_Tp1>&))
        (__shared_ptr::operator=(__shared_ptr<_Tp1>&&))
        (__shared_ptr::operator=(unique_ptr<_Tp1>&&)): Constrain with
        _Assignable.
        (__shared_ptr::reset(_Tp1*), __shared_ptr::reset(_Tp1*, _Deleter))
        (__shared_ptr::reset(_Tp1*, _Deleter, _Alloc)): Constrain with
        _Convertible.
        * testsuite/20_util/shared_ptr/cons/43820_neg.cc: Change dg-error to
        match on any line.
        * testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
        * testsuite/20_util/shared_ptr/assign/sfinae.cc: New test.
        * testsuite/20_util/shared_ptr/assign/shared_ptr_neg.cc: Update
        expected errors. Remove unnecessary code.
        * testsuite/20_util/shared_ptr/modifiers/reset_sfinae.cc: New test.

        * include/bits/stl_tree.h (_Rb_tree::operator=(_Rb_tree&&)): Move
        comparison object.
        * testsuite/23_containers/set/move_comparison.cc: New test.

        * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
        New test.

2016-08-30  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/77395
        * include/std/type_traits (is_constructible): Forward-declare...
        (__is_base_to_derived_ref): ...and use here.
        * testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
        * testsuite/20_util/is_constructible/77395.cc: New.
        * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
        * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
        Likewise.
        * testsuite/20_util/tuple/77395.cc: New.

2016-08-30  Uros Bizjak  <ubizjak@gmail.com>

        * testsuite/22_locale/time_get/get/char/2.cc: Move dg-do run
        directive above dg-require-namedlocale directive.
        * testsuite/22_locale/time_get/get/wchar_t/2.cc: Ditto.
        * testsuite/27_io/manipulators/extended/get_time/char/2.cc: Ditto.
        * testsuite/27_io/manipulators/extended/get_time/wchar_t/2.cc: Ditto.
        * testsuite/27_io/manipulators/extended/put_time/char/2.cc: Ditto.
        * testsuite/27_io/manipulators/extended/put_time/wchar_t/2.cc: Ditto.

2016-08-27  Tim Shen  <timshen@google.com>

        PR libstdc++/77356
        * include/bits/regex_compiler.tcc(_M_insert_bracket_matcher,
        _M_expression_term): Modify to support dash literal.
        * include/bits/regex_scanner.h: Add dash as a token type to make
        a different from the mandated dash literal by escaping.
        * include/bits/regex_scanner.tcc(_M_scan_in_bracket): Emit dash
        token in bracket expression parsing.
        * testsuite/28_regex/regression.cc: Add new testcases.

2016-08-26  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/51960
        * doc/xml/manual/intro.xml: Document DR 2127 change.
        * doc/html/*: Regenerate.
        * include/bits/stl_raw_storage_iter.h (operator=(_Tp&&)): Add.
        (operator++(), operator++(int)): Use injected class name.
        * testsuite/20_util/raw_storage_iterator/dr2127.cc: New test.

        * testsuite/*: Use { target c++11 } or { target c++14 } instead of
        using -std in dg-options.

2016-08-26  Jonathan Wakely  <jwakely@redhat.com>
            Pedro Alves  <palves@redhat.com>

        * testsuite/lib/gdb-test.exp (gdb-dg-runtest): Define wrapper to save
        and restore dg-interpreter-batch-mode.
        * testsuite/libstdc++-prettyprinters/prettyprinters.exp: Use
        gdb-dg-runtest instead of dg-runtest.
        * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.

2016-08-26  Jonathan Wakely  <jwakely@redhat.com>

        * config/abi/pre/gnu.ver (GLIBCXX_3.4, GLIBCXX_3.4.21): Use more
        precise patterns for basic_string constructors.
        (GLIBCXX_3.4.23): Export new constructors.
        * doc/xml/manual/intro.xml: Document LWG 2583 status.
        * doc/html/*: Regenerate.
        * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
        (basic_string(const basic_string&, size_type, const Alloc&)): Add
        new constructor for LWG 2583.
        (basic_string(const basic_string&, size_type, size_type)): Remove
        default argument.
        [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
        * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]: Define it.
        * testsuite/21_strings/basic_string/cons/char/8.cc: New test.
        * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: New test.

2016-08-24  Aditya Kumar  <hiraditya@msn.com>

        * include/bits/algorithmfwd.h: Remove trailing whitespace.
        * include/bits/shared_ptr_base.h: Likewise.

2016-08-23  Jonathan Wakely  <jwakely@redhat.com>

        * include/debug/array (array): Add _GLIBCXX17_CONSTEXPR.
        * include/profile/array (array): Likewise.
        (array::swap): Fix exception specification for zero-sized arrays.

        PR libstdc++/77334
        * include/bits/stl_tree.h (_Rb_tree::_M_move_assign): New functions.
        (_Rb_tree::operator=(_Rb_tree&&)): Dispatch to _M_move_assign.
        * testsuite/23_containers/map/77334.cc: New test.

        * doc/xml/manual/using.xml: Remove reference to -pthreads option.
        * doc/html/*: Regenerate.

        * testsuite/experimental/feat-cxx14.cc: Only preprocess, not compile.
        * testsuite/experimental/feat-lib-fund.cc: Likewise.

        PR libstdc++/71771
        * include/bits/stl_iterator.h
        (operator-(reverse_iterator<Iter>, reverse_iterator<Iter>): Only
        define for C++98 mode.
        (operator-(move_iterator<Iter>, move_iterator<Iter>): Don't define.
        * testsuite/24_iterators/headers/iterator/synopsis.cc: Use
        -std=gnu++98.
        * testsuite/24_iterators/headers/iterator/synopsis_c++11.cc: New test.
        * testsuite/24_iterators/headers/iterator/synopsis_c++14.cc: New test.
        * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: New test.
        * testsuite/24_iterators/move_iterator/greedy_ops.cc: Don't test
        difference operator.
        * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Only test
        difference operator for C++98.
        * testsuite/24_iterators/reverse_iterator/71771.cc: New test.

        * include/bits/c++config (_GLIBCXX17_CONSTEXPR): Define.
        * include/bits/range_access.h (begin, end, rbegin, rend, crbegin)
        (crend): Add _GLIBCXX17_CONSTEXPR as per P0031R0.
        * include/bits/stl_iterator.h (reverse_iterator, move_iterator)
        (__make_reverse_iterator, make_reverse_iterator, make_move_iterator):
        Likewise.
        * include/bits/stl_iterator_base_funcs.h (__distance, __advance): Add
        _GLIBCXX14_CONSTEXPR.
        (distance, advance, next, prev): Add _GLIBCXX17_CONSTEXPR.
        * include/std/array (array::begin, array::end, array::rbegin)
        (array::rend, array::cbegin, array:cend, array::crbegin)
        (array::crend, array::operator[], array::at, array::front)
        (array::back, array::data): Likewise.
        * testsuite/24_iterators/headers/iterator/range_access.cc: Replace
        with separate tests for C++11, C++14, and C++17.
        * testsuite/24_iterators/headers/iterator/range_access_c++11.cc: New.
        * testsuite/24_iterators/headers/iterator/range_access_c++14.cc: New.
        * testsuite/24_iterators/headers/iterator/range_access_c++17.cc: New.

2016-08-22  Tim Shen  <timshen@google.com>

        Split _M_dfs() into smaller functions.
        * regex_executor.h(_M_handle_repeat, _M_handle_subexpr_begin)
        (_M_handle_subexpr_end, _M_handle_line_begin_assertion)
        (_M_handle_line_end_assertion, _M_handle_word_boundary)
        (_M_handle_subexpr_lookahead, _M_handle_match)
        (_M_handle_backref, _M_handle_accept, _M_handle_alternative):
        Add separate function declarations.
        * regex_executor.tcc: Split _M_dfs() into multiple handler functions.

2016-08-22  Gleb Natapov  <gleb@scylladb.com>

        PR libstdc++/68297
        * config/abi/pre/gnu-versioned-namespace.ver: Export
        __cxa_init_primary_exception and std::exception_ptr(void*).
        * config/abi/pre/gnu.ver (CXXABI_1.3.11) : Add new symbol version and
        export __cxa_init_primary_exception and std::exception_ptr(void*).
        * include/Makefile.am: Add new headers.
        * include/Makefile.in: Regenerate.
        * libsupc++/Makefile.am: Add new headers.
        * libsupc++/Makefile.in: Regenerate.
        * libsupc++/cxxabi.h (__cxa_allocate_exception): Move to ...
        * libsupc++/cxxabi_init_exception.h: New header.
        (__cxa_init_primary_exception): Declare.
        * libsupc++/eh_throw.cc (__cxa_init_primary_exception): Define.
        (__cxa_throw): Use __cxa_init_primary_exception.
        * libsupc++/exception (std::exception): Move to ...
        * libsupc++/exception.h: New header.
        * libsupc++/exception_ptr.h (__exception_ptr::exception_ptr): Add
        friend declaration.
        (__exception_ptr::__dest_thunk): New function template.
        (std::make_exception_ptr) [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]:
        Use __cxa_allocate_exception and __cxa_init_primary_exception to
        create exception_ptr.
        * libsupc++/typeinfo: Include bits/exception.h instead of exception.
        * testsuite/util/testsuite_abi.cc: Add CXXABI_1.3.11 version.

2016-08-22  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/api.xml: Replace hardcoded links for specific versions with
        link to docs for all releases.
        * doc/html/*: Regenerate.

        PR libstdc++/77322
        * doc/xml/manual/intro.xml: Document DR 2062 change.
        * include/std/functional (function::swap): Add noexcept.
        (swap(function<Res(Args...)&, function<Res(Args...)&)): Likewise.
        * testsuite/20_util/function/77322.cc: New test.

2016-08-19  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/21_strings/basic_string/pthread18185.cc: Use -pthread for
        *-*-solaris* instead of -pthreads.
        * testsuite/21_strings/basic_string/pthread4.cc : Likewise.
        * testsuite/22_locale/locale/cons/12658_thread-1.cc: Likewise.
        * testsuite/22_locale/locale/cons/12658_thread-2.cc: Likewise.
        * testsuite/23_containers/list/pthread1.cc: Likewise.
        * testsuite/23_containers/list/pthread5.cc: Likewise.
        * testsuite/23_containers/map/pthread6.cc: Likewise.
        * testsuite/27_io/basic_ofstream/pthread2.cc: Likewise.
        * testsuite/27_io/basic_ostringstream/pthread3.cc: Likewise.
        * testsuite/30_threads/shared_mutex/*: Likewise.
        * testsuite/ext/rope/pthread7-rope.cc: Likewise.
        * testsuite/tr1/2_general_utilities/shared_ptr/thread/
        default_weaktoshared.cc: Likewise.
        * testsuite/tr1/2_general_utilities/shared_ptr/thread/
        mutex_weaktoshared.cc: Likewise.
        * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise. Use
        dg-require-effective-target instead of using -std option.
        * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
        Likewise.
        * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
        * testsuite/23_containers/vector/debug/multithreaded_swap.cc:
        Likewise.
        * testsuite/30_threads/async/*: Likewise.
        * testsuite/30_threads/call_once/*: Likewise.
        * testsuite/30_threads/condition_variable/*: Likewise.
        * testsuite/30_threads/condition_variable_any/*: Likewise.
        * testsuite/30_threads/future/*: Likewise.
        * testsuite/30_threads/lock/*: Likewise.
        * testsuite/30_threads/mutex/*: Likewise.
        * testsuite/30_threads/packaged_task/*: Likewise.
        * testsuite/30_threads/promise/*: Likewise.
        * testsuite/30_threads/recursive_mutex/*: Likewise.
        * testsuite/30_threads/recursive_timed_mutex/*: Likewise.
        * testsuite/30_threads/shared_future/*: Likewise.
        * testsuite/30_threads/shared_lock/*: Likewise.
        * testsuite/30_threads/shared_timed_mutex/*: Likewise.
        * testsuite/30_threads/this_thread/*: Likewise.
        * testsuite/30_threads/thread/*: Likewise.
        * testsuite/30_threads/timed_mutex/*: Likewise.
        * testsuite/30_threads/try_lock/*: Likewise.
        * testsuite/30_threads/unique_lock/*: Likewise.

        * doc/xml/manual/status_cxx2017.xml: Update status of not_fn.
        * doc/html/*: Regenerate.
        * include/experimental/functional (_Not_fn, not_fn): Match C++17
        semantics.
        * include/std/functional (_Not_fn, not_fn): Define for C++17.
        * testsuite/20_util/not_fn/1.cc: New.
        * testsuite/experimental/functional/not_fn.cc: Test abstract class.
        Remove test for volatile-qualified wrapper.

        * include/std/atomic (atomic::is_always_lock_free): Define.
        * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
        * testsuite/29_atomics/atomic/is_always_lock_free.cc: New.
        * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc: New.
        * doc/xml/manual/status_cxx2017.xml: Update status.
        * doc/html/*: Regenerate.

        * include/experimental/tuple (apply): Qualify call to __apply_impl.
        * include/std/tuple (apply): Likewise.
        * testsuite/experimental/system_error/value.cc: Fix ambiguities in
        C++17 mode.
        * testsuite/experimental/tuple/tuple_size.cc: Likewise.
        * testsuite/experimental/type_traits/value.cc: Likewise.

        * doc/xml/manual/status_cxx2017.xml: Update status of make_from_tuple
        and variant.
        * doc/html/*: Regenerate.

2016-08-18  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement the latest proposed resolution of LWG 2756.
        * include/std/optional (Optional_base(const _Tp&))
        (Optional_base(_Tp&&), using _Base::_Base): Remove.
        (optional(nullopt_t)): New.
        (optional(_Up&&)): Invoke base directly with in_place
        rather than creating a temporary, add default template
        argument, change constraints.
        (optional(const optional<_Up>&)): Invoke base directly
        with in_place, remove unnecessary constraints.
        (optional(optional<_Up>&& __t)): Likewise.
        (optional(in_place_t, _Args&&...)): New.
        (optional(in_place_t, initializer_list<_Up>, _Args&&...)): Likewise.
        (operator=(_Up&&)): Add default template argument, change constraints.
        (operator=(const optional<_Up>&)): Put is_same first in the
        constraints.
        (operator=(optional<_Up>&&)): Likewise.
        * testsuite/20_util/optional/assignment/5.cc: Add a test to
        verify assignment from something that can't be perfect-forwarded.
        * testsuite/20_util/optional/cons/value.cc: Add tests to verify
        that a nested optional is disengaged when constructed
        from a disengaged element type, and to verify that assignments
        from an engaged element type engage the optional.

2016-08-18  Tim Shen  <timshen@google.com>

        Implement <variant>

        * include/Makefile.am: Add new file std/variant.
        * include/Makefile.in: Generated from Makefile.am.
        * include/bits/enable_special_members.h: Add a tag type to allow
        the construction in non-default constructor.
        * include/bits/uses_allocator.h: Add convenience traits to
        detect constructibility.
        * include/std/variant: Implement <variant>.
        * testsuite/20_util/variant/compile.cc: Compile-time tests.
        * testsuite/20_util/variant/run.cc: Runtime tests.

2016-08-18  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/test.xml (test.run.permutations): Expand section.
        (test.new_tests): Rewrite section.
        (tests.dg.directives): New section.
        * doc/html/*: Regenerate.

        * doc/xml/manual/test.xml: Improve documentation of test targets.
        Document new-abi-baseline, check-debug, and check-parallel targets.

        * doc/xml/manual/build_hacking.xml: New section on shared library
        versioning.

        * doc/xml/manual/build_hacking.xml: Improve markup.
        * doc/xml/manual/test.xml: Likewise. Change section title from "Test"
        to "Testing".
        * doc/xml/faq.xml: Change link text to "Testing".

        * testsuite/tr1/3_function_objects/function/10.cc: Remove unintended
        dg-options directive.

2016-08-17  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/reference_wrapper/invoke-2.cc: Fix invalid dg-do
        directive and use effective target instead of dg-options.

        * testsuite/20_util/hash/chi2_q_bit_flip_set.cc: Use effective target
        instead of -std in dg-options.
        * testsuite/20_util/hash/chi2_q_bit_string_set.cc: Likewise.
        * testsuite/20_util/hash/chi2_q_numeric_pattern_set.cc: Likewise.
        * testsuite/20_util/hash/chi2_q_uniform_random.cc: Likewise.
        * testsuite/20_util/hash/quality.cc: Likewise.
        * testsuite/25_algorithms/heap/moveable.cc: Likewise.
        * testsuite/25_algorithms/heap/moveable2.cc: Likewise.
        * testsuite/25_algorithms/nth_element/random_test.cc: Likewise.
        * testsuite/25_algorithms/partial_sort/random_test.cc: Likewise.
        * testsuite/25_algorithms/partial_sort_copy/random_test.cc: Likewise.
        * testsuite/25_algorithms/sort/random_test.cc: Likewise.

        * testsuite/20_util/tuple/67844.cc: Require c++11 effective target.
        * testsuite/20_util/tuple/cons/nested_tuple_construct.cc: Likewise.
        * testsuite/27_io/rvalue_streams.cc: Likewise.

        * testsuite/26_numerics/complex/literals/types.cc: Add comment.

        * testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
        Remove duplicate dg-options directive.

        * testsuite/ext/profile/all.cc: Use effective target instead of
        -std=gnu++11. Use dg-additional-options instead of repeating options.

        * testsuite/20_util/bind/ref_neg.cc: Use effective target instead of
        -std=gnu++11. Add -fno-show-columns to dg-options. Use dg-prune-output
        instead of dg-excess-errors.

        * testsuite/26_numerics/headers/cmath/types_std_c++0x_neg.cc: Disable
        test for C++17.
        * testsuite/experimental/chrono/value.cc: Avoid ambiguities in C++17.
        * testsuite/experimental/ratio/value.cc: Likewise.
        * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Disable test for
        C++17.
        * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
        * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
        * testsuite/tr1/5_numerical_facilities/special_functions/
        10_cyl_bessel_k/airy.cc: Adjust namespace of __detail::__airy for
        C++17 compatibility.

        * testsuite/24_iterators/headers/iterator/range_access.cc: Adjust
        expected signatures for C++14 compatibility.

        PR libstdc++/77264
        * include/bits/basic_string.h (operator=(__sv_type)
        (append(__sv_type), assign(__sv_type), insert(size_type, __sv_type))
        (replace(size_type, size_type, __sv_type))
        (replace(const_iterator, const_iterator, __sv_type))
        (find(__sv_type, size_type), rfind(__sv_type, size_type))
        (compare(size_type, size_type, __sv_type)): Reformat.
        (_If_sv): Define helper for SFINAE constaints.
        (append(const _Tp&, size_type, size_type))
        (assign(const _Tp&, size_type, size_type))
        (insert(size_type, const _Tp&, size_type, size_type))
        (replace(size_type, size_type, const _Tp&, size_type, size_type)):
        Use _If_sv.
        * testsuite/21_strings/basic_string/modifiers/append/char/4.cc: Test
        SFINAE constraints.
        * testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/replace/wchar_t/7.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/assign/char/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/insert/char/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/compare/char/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc:
        Likewise.

2016-08-16  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/72847
        * include/bits/stl_bvector.h (_Bvector_base::_M_deallocate): Zero
        pointers to start and end of storage.
        * testsuite/23_containers/vector/bool/72847.cc: New test.
        * include/bits/vector.tcc (vector<bool>::_M_reallocate): Only update
        _M_finish after deallocating.
        (vector<bool>::_M_fill_insert): Likewise.
        (vector<bool>::_M_insert_range): Likewise.
        (vector<bool>::_M_insert_aux): Likewise.

2016-08-15  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement LWG 2744 and LWG 2754.
        * include/std/any (any(ValueType&&)): Constrain with __is_in_place_type.
        (any(in_place_type_t<_ValueType>, _Args&&...)): Use _Decay.
        (any(in_place_type_t<_ValueType>, initializer_list<_Up>, _Args&&...)):
        Likewise.
        (emplace(_Args&&...)): Likewise.
        (emplace(initializer_list<_Up>, _Args&&...)): Likewise.
        * include/std/utility: (__is_in_place_type_impl): New.
        (__is_in_place_type): Likewise.
        * testsuite/20_util/any/assign/emplace.cc: Add tests for decaying
        emplace.
        * testsuite/20_util/any/cons/in_place.cc: Add tests for decaying
        in_place constructor.
        * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
        * testsuite/20_util/any/requirements.cc: Add a test for
        in_place-constructing a non-default-constructible type.

2016-08-15  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Add a feature macro for C++17 make_from_tuple.
        * include/std/tuple (__cpp_lib_make_from_tuple): New.
        (__make_from_tuple_impl(_Tuple&&, index_sequence<_Idx...>)):
        Qualify the call to get<>().
        * testsuite/20_util/tuple/make_from_tuple/1.cc: Adjust.

2016-08-15  Uros Bizjak  <ubizjak@gmail.com>

        * src/filesystem/ops.cc: Always include ostream and
        ext/stdio_filebuf.h.
        (do_copy_file): Check if _GLIBCXX_USE_FCHMODAT is defined.
        [_GLIBCXX_USE_SENDFILE]: Fallback to read/write operations in case
        sendfile fails with ENOSYS or EINVAL.

2016-08-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        PR libstdc++/72840
        * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Fix dg-error
        syntax.

2016-08-11  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement C++17 make_from_tuple.
        * include/std/tuple (__make_from_tuple_impl, make_from_tuple): New.
        * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.

2016-08-11  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement LWG 2758.
        * include/bits/basic_string.h
        (append(__sv_type, size_type, size_type)): Turn into a template,
        change parameter type, constrain, add a conversion to __sv_type
        from the dependent parameter type.
        (assign(__sv_type, size_type, size_type)): Likewise.
        (insert(size_type, __sv_type, size_type, size_type)): Likewise.
        (replace(size_type, size_type, __sv_type, size_type, size_type)):
        Likewise.
        (compare(size_type, size_type,__sv_type, size_type, size_type)):
        Likewise.
        * testsuite/21_strings/basic_string/lwg2758.cc: New.

2016-08-06  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2017.xml: Update status table.
        * doc/html/manual/status.html: Regenerate.

        * testsuite/lib/libstdc++.exp: Fix typo in comment.

        PR libstdc++/72820
        * include/std/functional (_Function_base::_Base_manager::_M_clone):
        Qualify new operator.
        * testsuite/20_util/function/cons/72820.cc: New test.

        * doc/xml/manual/status_cxx2017.xml: Add missing LFTSv2 features.
        * doc/html/manual/status.html: Regenerate.
        * include/Makefile.am: Add new header.
        * include/Makefile.in: Regenerate.
        * include/bits/invoke.h: New header.
        (__invoke): Make constexpr. Add && to types in exception specification.
        * include/experimental/tuple (apply, __apply_impl): Fix non-reserved
        names. Include <bits/invoke.h> and use std::__invoke.
        * include/std/functional (__invfwd, __invoke_impl, __invoke): Move to
        new header.
        (invoke): Add && to types in exception specification.
        * include/std/tuple (apply, __apply_impl): Define for C++17.
        * testsuite/20_util/tuple/apply/1.cc: New test.
        * testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error
        lineno.

2016-08-05  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2017.xml: Correct shared_from_this status.
        * doc/html/manual/status.html: Regenerate.

        * include/std/chrono (floor, ceil, round, abs): New for C++17.
        * testsuite/20_util/duration_cast/rounding.cc: New test.
        * testsuite/20_util/time_point_cast/rounding.cc: New test.
        * doc/xml/manual/status_cxx2017.xml: Update status table.
        * doc/html/manual/status.html: Regenerate.
        * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust
        dg-error lineno.
        * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
        * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
        * testsuite/20_util/duration/literals/range.cc: Likewise.

        * include/std/functional (__callable_functor): Remove.
        (_Function_handler::_M_invoke): Use __invoke instead of
        __callable_functor or mem_fn.
        (function::_Callable): Use lvalue in result_of expression.
        (function): Remove TODO comments about allocators.
        * testsuite/20_util/function/cons/refqual.cc: New test.

2016-08-04  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2017.xml: Update status table.
        * include/std/functional (__inv_unwrap): Move to <type_traits>.
        (__invoke_impl): Remove exception specifications.
        (__invoke, invoke): Add exception specifications using
        __is_nothrow_callable.
        * include/std/type_traits (__inv_unwrap): Move from <functional>.
        (__is_callable_impl, __call_is_nt, __call_is_nothrow): New helpers.
        (__is_callable, __is_nothrow_callable): New traits.
        (is_callable, is_callable_v): New C++17 traits.
        (is_nothrow_callable, is_nothrow_callable_v): Likewise.
        * testsuite/20_util/is_callable/requirements/
        explicit_instantiation.cc: New test.
        * testsuite/20_util/is_callable/requirements/
        explicit_instantiation_ext.cc: New test.
        * testsuite/20_util/is_callable/requirements/typedefs.cc: New test.
        * testsuite/20_util/is_callable/requirements/typedefs_ext.cc: New
        test.
        * testsuite/20_util/is_callable/value.cc: New test.
        * testsuite/20_util/is_callable/value_ext.cc: New test.
        * testsuite/20_util/is_nothrow_callable/requirements/
        explicit_instantiation.cc: New test.
        * testsuite/20_util/is_nothrow_callable/requirements/
        explicit_instantiation_ext.cc: New test.
        * testsuite/20_util/is_nothrow_callable/requirements/typedefs.cc:
        New test.
        * testsuite/20_util/is_nothrow_callable/requirements/typedefs_ext.cc:
        New test.
        * testsuite/20_util/is_nothrow_callable/value.cc: New test.
        * testsuite/20_util/is_nothrow_callable/value_ext.cc: New test.

        * doc/xml/manual/status_cxx2017.xml: Update C++17 status table.
        * doc/html/manual/status.html: Regenerate.

        * testsuite/20_util/enable_shared_from_this/members/reinit.cc: Use
        effective target not dg-options. Move check for feature-test macro to:
        * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
        New test.

        * include/std/functional (_Unwrap): Rename to __inv_unwrap.
        (__invfwd): Adjust.
        (__invoke_impl): Remove unused template parameters.
        * testsuite/20_util/function_objects/invoke/59768.cc: Remove unused
        parameter.
        * testsuite/20_util/function_objects/invoke/ref_ext.cc: Copy 59768.cc
        and test __invoke extension for C++11.

2016-08-03  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/shared_ptr_base.h (__cpp_lib_enable_shared_from_this):
        Define feature-test macro.
        * testsuite/20_util/enable_shared_from_this/members/reinit.cc: Test
        for the macro.

        * include/bits/shared_ptr.h (shared_ptr::weak_type): Define.
        * include/bits/shared_ptr_base.h (__shared_ptr::weak_type): Define.
        * testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error.
        * testsuite/20_util/shared_ptr/requirements/weak_type.cc: New test.
        * testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.

        * include/std/utility (as_const): Define.
        * testsuite/20_util/as_const/1.cc: New test.
        * testsuite/20_util/as_const/rvalue_neg.cc: New test.

        * include/bits/shared_ptr.h (owner_less): Add default template
        argument.
        * include/bits/shared_ptr_base.h (_Sp_owner_less<void, void>): Define
        specialization.
        (owner_less<void>): Define specialization.
        * include/bits/stl_function.h (__cpp_lib_transparent_operators):
        Update value.
        * testsuite/20_util/owner_less/void.cc: New test.
        * testsuite/experimental/feat-cxx14.cc: Update macro value tested.

        * include/bits/allocator.h (__cpp_lib_incomplete_container_elements):
        Define feature-test macro.
        * include/bits/range_access.h (__cpp_lib_array_constexpr): Likewise.
        * include/std/shared_mutex (__cpp_lib_shared_mutex): Uncomment.
        * include/std/type_traits (__cpp_lib_logical_traits): Fix value.
        (__cpp_lib_type_trait_variable_templates): Define.

        * include/bits/stl_function.h: Remove commented-out macro.
        * include/bits/stl_tree.h (__cpp_lib_generic_associative_lookup):
        Define feature-test macro.
        * testsuite/experimental/feat-cxx14.cc: Add tests for more macros.

        * include/bits/c++config (_GLIBCXX_USE_STD_SPEC_FUNCS): Define for
        C++17, or for C++11/C++14 when __STDCPP_WANT_MATH_SPEC_FUNCS__ is
        true.
        * include/bits/specfun.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]: Don't
        do #error for C++17.
        * include/c_global/cmath: Check _GLIBCXX_USE_STD_SPEC_FUNCS instead
        of __STDCPP_WANT_MATH_SPEC_FUNCS__.
        * include/tr1/bessel_function.tcc: Likewise.
        * include/tr1/beta_function.tcc: Likewise.
        * include/tr1/cmath: Likewise.
        * include/tr1/ell_integral.tcc: Likewise.
        * include/tr1/exp_integral.tcc: Likewise.
        * include/tr1/gamma.tcc: 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/riemann_zeta.tcc: Likewise.
        * include/tr1/special_function_util.h: Likewise.
        * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc: New.

        * include/std/type_traits (has_trivial_default_constructor): Remove.
        (has_trivial_copy_constructor, has_trivial_copy_assign): Likewise.
        * testsuite/20_util/has_trivial_copy_assign/requirements/
        explicit_instantiation.cc: Remove test.
        * testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
        line number.
        * testsuite/20_util/has_trivial_copy_assign/requirements/typedefs.cc:
        Likewise.
        * testsuite/20_util/has_trivial_copy_assign/value.cc: Likewise.
        * testsuite/20_util/has_trivial_copy_constructor/requirements/
        explicit_instantiation.cc: Likewise.
        * testsuite/20_util/has_trivial_copy_constructor/requirements/
        typedefs.cc: Likewise.
        * testsuite/20_util/has_trivial_copy_constructor/value.cc: Likewise.
        * testsuite/20_util/has_trivial_default_constructor/requirements/
        explicit_instantiation.cc: Likewise.
        * testsuite/20_util/has_trivial_default_constructor/requirements/
        typedefs.cc: Likewise.
        * testsuite/20_util/has_trivial_default_constructor/value.cc:
        Likewise.
        * testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
        Check has_trivial_default_constructor, has_trivial_copy_constructor,
        and has_trivial_copy_assign are not defined.
        * testsuite/20_util/pair/requirements/dr801.cc: Remove commented out
        tests.
        * testsuite/20_util/tuple/requirements/dr801.cc: Likewise.
        * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
        dg-error line number.
        * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
        Likewise.

2016-08-02  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/21_strings/basic_string/allocator/wchar_t/copy.cc:
        Remove reundant check for _GLIBCXX_USE_WCHAR_T and fix char type.
        * 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/lib/libstdc++.exp (check_v3_target_filesystem_ts): Improve
        comments.

        * testsuite/19_diagnostics/error_code/operators/bool_neg.cc: Move
        dg-error to relevant line.
        * testsuite/19_diagnostics/error_condition/operators/bool_neg.cc:
        Likewise.
        * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.

        * scripts/testsuite_flags.in: Add -fno-show-column to cxxflags.

        * testsuite/18_support/bad_exception/23591_thread-1.c: Skip test if
        options are present that aren't valid for C.
        * testsuite/abi/header_cxxabi.c: Likewise.

        * testsuite/tr1/5_numerical_facilities/special_functions/16_hermite/
        check_value.cc: Do not add special functions to namespace std in TR1
        test.

        * testsuite/ext/special_functions/conf_hyperg/check_nan.cc: Only
        run for C++11 and later.
        * testsuite/ext/special_functions/conf_hyperg/check_value.cc:
        Likewise.
        * testsuite/ext/special_functions/conf_hyperg/compile.cc: Likewise.
        * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
        * testsuite/ext/special_functions/hyperg/check_value.cc: Likewise.
        * testsuite/ext/special_functions/hyperg/compile.cc: Likewise.
        * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
        Likewise.
        * testsuite/special_functions/01_assoc_laguerre/check_value.cc:
        Likewise.
        * testsuite/special_functions/01_assoc_laguerre/compile.cc: Likewise.
        * testsuite/special_functions/01_assoc_laguerre/compile_2.cc:
        Likewise.
        * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
        Likewise.
        * testsuite/special_functions/02_assoc_legendre/check_value.cc:
        Likewise.
        * testsuite/special_functions/02_assoc_legendre/compile.cc: Likewise.
        * testsuite/special_functions/02_assoc_legendre/compile_2.cc:
        * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
        * testsuite/special_functions/03_beta/check_value.cc: Likewise.
        * testsuite/special_functions/03_beta/compile.cc: Likewise.
        * testsuite/special_functions/03_beta/compile_2.cc: Likewise.
        * testsuite/special_functions/04_comp_ellint_1/check_nan.cc: Likewise.
        * testsuite/special_functions/04_comp_ellint_1/check_value.cc:
        Likewise.
        * testsuite/special_functions/04_comp_ellint_1/compile.cc: Likewise.
        * testsuite/special_functions/04_comp_ellint_1/compile_2.cc: Likewise.
        * testsuite/special_functions/05_comp_ellint_2/check_nan.cc: Likewise.
        * testsuite/special_functions/05_comp_ellint_2/check_value.cc:
        Likewise.
        * testsuite/special_functions/05_comp_ellint_2/compile.cc: Likewise.
        * testsuite/special_functions/05_comp_ellint_2/compile_2.cc: Likewise.
        * testsuite/special_functions/06_comp_ellint_3/check_nan.cc: Likewise.
        * testsuite/special_functions/06_comp_ellint_3/check_value.cc:
        Likewise.
        * testsuite/special_functions/06_comp_ellint_3/compile.cc: Likewise.
        * testsuite/special_functions/06_comp_ellint_3/compile_2.cc: Likewise.
        * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc: Likewise.
        * testsuite/special_functions/07_cyl_bessel_i/check_value.cc:
        Likewise.
        * testsuite/special_functions/07_cyl_bessel_i/compile.cc: Likewise.
        * testsuite/special_functions/07_cyl_bessel_i/compile_2.cc: Likewise.
        * testsuite/special_functions/07_cyl_bessel_i/pr56216.cc: Likewise.
        * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc: Likewise.
        * testsuite/special_functions/08_cyl_bessel_j/check_value.cc:
        Likewise.
        * testsuite/special_functions/08_cyl_bessel_j/compile.cc: Likewise.
        * testsuite/special_functions/08_cyl_bessel_j/compile_2.cc: Likewise.
        * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc: Likewise.
        * testsuite/special_functions/09_cyl_bessel_k/check_value.cc:
        Likewise.
        * testsuite/special_functions/09_cyl_bessel_k/compile.cc: Likewise.
        * testsuite/special_functions/09_cyl_bessel_k/compile_2.cc: Likewise.
        * testsuite/special_functions/10_cyl_neumann/check_nan.cc: Likewise.
        * testsuite/special_functions/10_cyl_neumann/check_value.cc: Likewise.
        * testsuite/special_functions/10_cyl_neumann/compile.cc: Likewise.
        * testsuite/special_functions/10_cyl_neumann/compile_2.cc: Likewise.
        * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
        * testsuite/special_functions/11_ellint_1/check_value.cc: Likewise.
        * testsuite/special_functions/11_ellint_1/compile.cc: Likewise.
        * testsuite/special_functions/11_ellint_1/compile_2.cc: Likewise.
        * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
        * testsuite/special_functions/12_ellint_2/check_value.cc: Likewise.
        * testsuite/special_functions/12_ellint_2/compile.cc: Likewise.
        * testsuite/special_functions/12_ellint_2/compile_2.cc: Likewise.
        * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
        * testsuite/special_functions/13_ellint_3/check_value.cc: Likewise.
        * testsuite/special_functions/13_ellint_3/compile.cc: Likewise.
        * testsuite/special_functions/13_ellint_3/compile_2.cc: Likewise.
        * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
        * testsuite/special_functions/14_expint/check_value.cc: Likewise.
        * testsuite/special_functions/14_expint/compile.cc: Likewise.
        * testsuite/special_functions/14_expint/compile_2.cc: Likewise.
        * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
        * testsuite/special_functions/15_hermite/check_value.cc: Likewise.
        * testsuite/special_functions/15_hermite/compile.cc: Likewise.
        * testsuite/special_functions/15_hermite/compile_2.cc: Likewise.
        * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
        * testsuite/special_functions/16_laguerre/check_value.cc: Likewise.
        * testsuite/special_functions/16_laguerre/compile.cc: Likewise.
        * testsuite/special_functions/16_laguerre/compile_2.cc: Likewise.
        * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
        * testsuite/special_functions/17_legendre/check_value.cc: Likewise.
        * testsuite/special_functions/17_legendre/compile.cc: Likewise.
        * testsuite/special_functions/17_legendre/compile_2.cc: Likewise.
        * testsuite/special_functions/18_riemann_zeta/check_nan.cc: Likewise.
        * testsuite/special_functions/18_riemann_zeta/check_value.cc:
        Likewise.
        * testsuite/special_functions/18_riemann_zeta/compile.cc: Likewise.
        * testsuite/special_functions/18_riemann_zeta/compile_2.cc: Likewise.
        * testsuite/special_functions/19_sph_bessel/check_nan.cc: Likewise.
        * testsuite/special_functions/19_sph_bessel/check_value.cc: Likewise.
        * testsuite/special_functions/19_sph_bessel/compile.cc: Likewise.
        * testsuite/special_functions/19_sph_bessel/compile_2.cc: Likewise.
        * testsuite/special_functions/20_sph_legendre/check_nan.cc: Likewise.
        * testsuite/special_functions/20_sph_legendre/check_value.cc:
        Likewise.
        * testsuite/special_functions/20_sph_legendre/compile.cc: Likewise.
        * testsuite/special_functions/20_sph_legendre/compile_2.cc: Likewise.
        * testsuite/special_functions/21_sph_neumann/check_nan.cc: Likewise.
        * testsuite/special_functions/21_sph_neumann/check_value.cc: Likewise.
        * testsuite/special_functions/21_sph_neumann/compile.cc: Likewise.
        * testsuite/special_functions/21_sph_neumann/compile_2.cc: Likewise.

        * testsuite/tr1/5_numerical_facilities/special_functions/
        08_cyl_bessel_i/check_value.cc: Use __attribute__((unused)) instead
        of [[gnu::unused]].
        * testsuite/tr1/5_numerical_facilities/special_functions/
        09_cyl_bessel_j/check_value.cc: Likewise.
        * testsuite/tr1/5_numerical_facilities/special_functions/
        10_cyl_bessel_k/check_value.cc: Likewise.
        * testsuite/tr1/5_numerical_facilities/special_functions/
        11_cyl_neumann/check_value.cc: Likewise.
        * testsuite/tr1/5_numerical_facilities/special_functions/
        21_sph_bessel/check_value.cc: Likewise.
        * testsuite/tr1/5_numerical_facilities/special_functions/
        23_sph_neumann/check_value.cc: Likewise.

2016-08-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * 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.

2016-08-02  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Skip
        test if -flto used.

        * testsuite/lib/libstdc++.exp (v3-build_support): Add -fno-lto to
        additional flags for compiling libtestc++.a objects.

2016-08-01  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/basic_string.h (data() const): Update comment.
        (data()): Add non-const overload for C++17.
        * testsuite/21_strings/basic_string/operations/data/char/2.cc: New.
        * testsuite/21_strings/basic_string/operations/data/wchar_t/2.cc: New.

        * include/bits/basic_string.tcc: Disable explicit instantiation
        declarations for C++17.

        * testsuite/23_containers/unordered_map/requirements/53339.cc: Remove
        ignored "xfail" from { dg-do compile { xfail selector } } directive.
        * testsuite/23_containers/unordered_multimap/requirements/53339.cc:
        Likewise.
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++11.cc: Likewise.
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++98.cc: Likewise.
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c.cc: Likewise.

        * testsuite/backward/hash_set/check_construct_destroy.cc: Account
        for different construct/destroy counts in C++98 mode.

        * testsuite/17_intro/freestanding.cc: Remove "-x c" from dg-options.

        * testsuite/20_util/tuple/cons/66338.cc: Limit test to C++11 and
        later.
        * testsuite/20_util/tuple/cons/element_accepts_anything_byval.cc:
        Likewise.

        * testsuite/25_algorithms/lower_bound/debug/irreflexive.cc: Use
        C++98-compatible initialization for array.

        * testsuite/20_util/shared_ptr/assign/auto_ptr_rvalue.cc: Remove
        unused header and variable from compile-only test.
        * testsuite/20_util/shared_ptr/assign/unique_ptr_rvalue.cc: Likewise.
        * testsuite/28_regex/basic_regex/assign/char/cstring.cc: Likewise.
        * testsuite/28_regex/basic_regex/ctors/string_wchar_t.cc: Likewise.
        * testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
        Likewise.

        * testsuite/experimental/string_view/operations/rfind/char/2.cc:
        Remove duplicate dg-options directive.

        * testsuite/20_util/specialized_algorithms/uninitialized_copy/
        808590.cc: Use -std=gnu++98 instead of -std=gnu++03.

        * testsuite/20_util/make_signed/requirements/typedefs-2.cc: Remove
        linker options from compile-only tests.
        * testsuite/20_util/make_unsigned/requirements/typedefs-2.cc:
        Likewise.

        * testsuite/27_io/ios_base/types/fmtflags/case_label.cc: Make test
        supported for C++11 and later.
        * testsuite/27_io/ios_base/types/iostate/case_label.cc: Likewise.
        * testsuite/27_io/ios_base/types/openmode/case_label.cc: Likewise.

2016-08-01  Uros Bizjak  <ubizjak@gmail.com>

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

2016-07-31  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/conditional/requirements/typedefs.cc: Change to
        compile-only test.

        * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
        Ensure test is compiled with optimization.

        * testsuite/23_containers/list/requirements/dr438/insert_neg.cc:
        Adjust dg-prune-output pattern for error in C++98 mode.

        * testsuite/28_regex/basic_regex/ctors/basic/raw_string.cc: Only
        run for C++11 or later.

        * testsuite/28_regex/basic_regex/ctors/basic/raw_string.cc: Fix
        test to not rely on GNU extension (escaped normal characters in POSIX
        BRE). Enable tests for other strings which are now supported.

        * testsuite/20_util/pair/astuple/get_neg.cc: Use effective-target
        c++11 instead of setting -std=gnu++14.

        PR libstdc++/72745
        * include/std/array (get): Use positive message for static assertions.
        * include/std/functional (_Safe_tuple_element_t): Fix indentation.
        * include/std/tuple (tuple_element<I, tuple<>>): Add partial
        specialization for invalid indices, with static assertion.
        * testsuite/20_util/tuple/element_access/get_neg.cc: New test.

        * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Move
        dg-error to relevant line.
        * testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
        Likewise.
        * testsuite/23_containers/forward_list/requirements/dr438/
        assign_neg.cc: Likewise.
        * testsuite/23_containers/forward_list/requirements/dr438/
        constructor_1_neg.cc: Likewise.
        * testsuite/23_containers/forward_list/requirements/dr438/
        constructor_2_neg.cc: Likewise.
        * testsuite/23_containers/forward_list/requirements/dr438/
        insert_neg.cc: Likewise.
        * testsuite/26_numerics/headers/cmath/types_std_c++0x_neg.cc:
        Likewise.
        * testsuite/26_numerics/random/linear_congruential_engine/
        requirements/non_uint_neg.cc: Likewise.
        * testsuite/29_atomics/headers/atomic/types_std_c++0x_neg.cc:
        Likewise. Also test for std::atomic_address.

2016-07-31  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Add missing variable traits, fix testsuite failures.
        * include/bits/uses_allocator.h (uses_allocator_v): New.
        * include/std/functional (is_bind_expression_v, is_placeholder_v):
        Likewise.
        * testsuite/20_util/bind/is_placeholder_v.cc: Likewise.
        * testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
        * testsuite/20_util/duration/literals/range.cc: Likewise.
        * 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/make_signed/requirements/typedefs_neg.cc: Likewise.
        * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
        Likewise.
        * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
        * testsuite/20_util/uses_allocator/requirements/uses_allocator_v.cc:
        New.

2016-07-31  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/18_support/numeric_limits/40856.cc [__STRICT_ANSI__]: Do
        not test 128-bit types.
        * testsuite/20_util/is_floating_point/value.cc: Likewise.
        * testsuite/20_util/is_integral/value.cc: Likewise.
        * testsuite/20_util/is_signed/value.cc: Likewise.
        * testsuite/20_util/is_unsigned/value.cc: Likewise.
        * testsuite/20_util/make_signed/requirements/typedefs-1.cc: Likewise.
        * testsuite/20_util/make_signed/requirements/typedefs-2.cc: Likewise.
        * testsuite/20_util/make_unsigned/requirements/typedefs-1.cc:
        Likewise.
        * testsuite/20_util/make_unsigned/requirements/typedefs-2.cc:
        Likewise.

        * testsuite/26_numerics/headers/cstdlib/54686.c: Rename to 54686.cc.

2016-07-29  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement C++17 variable templates for type traits.
        * include/std/chrono (treat_as_floating_point_v): New.
        * 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): Likewise.
        * type_traits (conjunction_v, disjunction_v, negation_v)
        (is_void_v, is_null_pointer_v, is_integral_v, is_floating_point_v)
        (is_array_v, is_pointer_v, is_lvalue_reference_v)
        (is_rvalue_reference_v, is_member_object_pointer_v)
        (is_member_function_pointer_v, is_enum_v, is_union_v)
        (is_class_v, is_function_v, is_reference_v, is_arithmetic_v)
        (is_fundamental_v, is_object_v, is_scalar_v, is_compound_v)
        (is_member_pointer_v, is_const_v, is_volatile_v, is_trivial_v)
        (is_trivially_copyable_v, is_standard_layout_v)
        (is_pod_v, is_literal_type_v, is_empty_v, is_polymorphic_v)
        (is_abstract_v, is_final_v, is_signed_v, is_unsigned_v)
        (is_constructible_v, is_default_constructible_v)
        (is_copy_constructible_v, is_move_constructible_v)
        (is_assignable_v, is_copy_assignable_v, is_move_assignable_v)
        (is_destructible_v, is_trivially_constructible_v)
        (is_trivially_default_constructible_v)
        (is_trivially_copy_constructible_v, is_trivially_move_constructible_v)
        (is_trivially_assignable_v, is_trivially_copy_assignable_v)
        (is_trivially_move_assignable_v, is_trivially_destructible_v)
        (is_nothrow_constructible_v, is_nothrow_default_constructible_v)
        (is_nothrow_copy_constructible_v, is_nothrow_move_constructible_v)
        (is_nothrow_assignable_v, is_nothrow_copy_assignable_v)
        (is_nothrow_move_assignable_v, is_nothrow_destructible_v)
        (has_virtual_destructor_v, alignment_of_v, rank_v, extent_v)
        (is_same_v, is_base_of_v, is_convertible_v): Likewise.
        * testsuite/19_diagnostics/error_code/is_error_code_v.cc: Likewise.
        * testsuite/20_util/duration/requirements/treat_as_floating_point_v.cc:
        Likewise.
        * testsuite/20_util/ratio/requirements/ratio_equal_v.cc: Likewise.
        * testsuite/20_util/tuple/tuple_size_v.cc: Likewise.
        * testsuite/20_util/variable_templates_for_traits.cc: Likewise.

2016-07-29  Andreas Schwab  <schwab@linux-m68k.org>

        * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.

2016-07-29  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/abi.xml: Document 6.0.22 library version.
        * doc/html/manual/abi.html: Regenerate.

        * acinclude.m4 (libtool_VERSION): Bump to 6:23:0.
        * config/abi/pre/gnu.ver: Add 3.4.23 version for new basic_string
        symbols.
        * configure: Regenerate.
        * testsuite/util/testsuite_abi.cc: Add new symbol version.

        * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
        * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Likewise.
        * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Likewise.
        * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt:
        Likewise.
        * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Likewise.
        * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Likewise.
        * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Likewise.

2016-07-28  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/23_containers/deque/requirements/dr438/assign_neg.cc:
        Adjust dg-prune-output pattern for error in C++98 mode.
        * testsuite/23_containers/deque/requirements/dr438/
        constructor_1_neg.cc: Likewise.
        * testsuite/23_containers/deque/requirements/dr438/
        constructor_2_neg.cc: Likewise.
        * testsuite/23_containers/deque/requirements/dr438/insert_neg.cc:
        Likewise.
        * testsuite/23_containers/list/requirements/dr438/assign_neg.cc:
        Likewise.
        * testsuite/23_containers/list/requirements/dr438/
        constructor_1_neg.cc: Likewise.
        * testsuite/23_containers/list/requirements/dr438/insert_neg.cc:
        Likewise.
        * testsuite/23_containers/vector/requirements/dr438/assign_neg.cc:
        Likewise.
        * testsuite/23_containers/vector/requirements/dr438/
        constructor_1_neg.cc: Likewise.
        * testsuite/23_containers/vector/requirements/dr438/
        constructor_2_neg.cc: Likewise.
        * testsuite/23_containers/vector/requirements/dr438/insert_neg.cc:
        Likewise.

        * testsuite/23_containers/vector/check_construct_destroy.cc: Account
        for different construct/destroy counts in C++98 mode.

        * testsuite/17_intro/headers/c++2011/stdc++.cc: Change target-specific
        dg-options to dg-additional-options so that default options are used.
        * testsuite/17_intro/headers/c++2011/stdc++_multiple_inclusion.cc:
        Likewise.
        * testsuite/17_intro/headers/c++2014/stdc++.cc: Likewise.
        * testsuite/17_intro/headers/c++2014/stdc++_multiple_inclusion.cc:
        Likewise.
        * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
        Use dg-additional-options instead of repeating the common options.

        * testsuite/22_locale/conversions/string/1.cc: Remove unintended
        dg-do compile directive.
        * testsuite/26_numerics/headers/cmath/fabs_inline.cc: Fix syntax of
        dg-do directive.
        * testsuite/26_numerics/valarray/const_bracket.cc: Likewise.

2016-07-28  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement std::string_view and P0254r2,
        Integrating std::string_view and std::string.
        * include/Makefile.am: Add string_view and string_view.tcc
        to the exported headers.
        * include/Makefile.in: Likewise.
        * include/bits/basic_string.h: Include <string_view> in C++17 mode.
        (__sv_type): New.
        (basic_string(__sv_type, const _Alloc&)): Likewise.
        (operator=(__sv_type)): Likewise.
        (operator __sv_type()): Likewise.
        (operator+=(__sv_type)): Likewise.
        (append(__sv_type __sv)): Likewise.
        (append(__sv_type, size_type, size_type)): Likewise.
        (assign(__sv_type)): Likewise.
        (assign(__sv_type, size_type, size_type)): Likewise.
        (insert(size_type, __sv_type)): Likewise.
        (insert(size_type, __sv_type, size_type, size_type)): Likewise.
        (replace(size_type, size_type, __sv_type)): Likewise.
        (replace(size_type, size_type, __sv_type, size_type, size_type)):
        Likewise.
        (replace(const_iterator, const_iterator, __sv_type)): Likewise.
        (find(__sv_type, size_type)): Likewise.
        (rfind(__sv_type, size_type)): Likewise.
        (find_first_of(__sv_type, size_type)): Likewise.
        (find_last_of(__sv_type, size_type)): Likewise.
        (find_first_not_of(__sv_type, size_type)): Likewise.
        (find_last_not_of(__sv_type, size_type)): Likewise.
        (compare(__sv_type)): Likewise.
        (compare(size_type, size_type, __sv_type)): Likewise.
        (compare(size_type, size_type, __sv_type, size_type, size_type)):
        Likewise.
        * include/bits/string_view.tcc: New.
        * include/std/string_view: Likewise.
        * testsuite/21_strings/basic_string/cons/char/7.cc: Likewise.
        * testsuite/21_strings/basic_string/cons/wchar_t/7.cc: Likewise.
        * testsuite/21_strings/basic_string/modifiers/append/char/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/assign/char/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/insert/char/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
        Likewise.
        * testsuite/21_strings/basic_string/modifiers/replace/wchar_t/7.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/compare/char/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/find/char/5.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operations/find/wchar_t/5.cc:
        Likewise.
        * testsuite/21_strings/basic_string/operators/char/5.cc: Likewise.
        * testsuite/21_strings/basic_string/operators/wchar_t/5.cc: Likewise.
        * testsuite/21_strings/basic_string_view/capacity/1.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/char/1.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/char/2.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/char/3.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/wchar_t/2.cc: Likewise.
        * testsuite/21_strings/basic_string_view/cons/wchar_t/3.cc: Likewise.
        * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/char/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/char/front_back.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/wchar_t/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/wchar_t/empty.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/element_access/wchar_t/front_back.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/include.cc: Likewise.
        * testsuite/21_strings/basic_string_view/inserters/char/1.cc: Likewise.
        * testsuite/21_strings/basic_string_view/inserters/char/2.cc: Likewise.
        * testsuite/21_strings/basic_string_view/inserters/char/3.cc: Likewise.
        * testsuite/21_strings/basic_string_view/inserters/pod/10081-out.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/inserters/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/inserters/wchar_t/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc:
        Likewise.
        * 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/compare/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/char/13650.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/13650.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/copy/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/data/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/data/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/char/4.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/operations/find/wchar_t/4.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/char/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/2.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/3.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/string_conversion/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/substr/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.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:
        Likewise.
        * testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
        Likewise.
        * testsuite/21_strings/basic_string_view/typedefs.cc: Likewise.
        * testsuite/21_strings/basic_string_view/types/1.cc: Likewise.

2016-07-27  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/forward/1_neg.cc: Move dg-error to right line.

2016-07-25  Georeth Chow  <georeth2010@gmail.com>

        * include/ext/ropeimpl.h (rope<>::_S_dump(_RopeRep*, int)): Qualify
        _S_concat enumerator.
        * testsuite/ext/rope/6.cc: New test.

2016-07-25  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Use
        std::mt19937, std::thread and std::atomic to simplify test.
        * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.

2016-07-22  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71964
        * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
        (basic_string::_Alloc_hider(pointer, _Alloc&&)): Add constructor.
        * include/bits/stl_tree.h (_Rb_tree(_Rb_tree&&)): Move allocator.
        * testsuite/21_strings/basic_string/allocator/71964.cc: New test.
        * testsuite/23_containers/set/allocator/71964.cc: New test.

        * testsuite/lib/libstdc++.exp (check_v3_target_namedlocale): Use
        delete[] instead of delete.

2016-07-21  Jonathan Wakely  <jwakely@redhat.com>

        * include/experimental/propagate_const (propagate_const::__t): Rename
        to _M_t and remove comment. Qualify std::move and std::forward.
        * testsuite/experimental/propagate_const/cons/default.cc: Fix test.

        * testsuite/23_containers/vector/zero_sized_allocations.cc:
        Define sized deallocation function.
        * testsuite/util/testsuite_new_operators.h:
        (operator delete(void*, const std::nothrow_t&)): Define nothrow
        deallocation function.

        * testsuite/21_strings/basic_string/modifiers/append/char/1.cc: Fix
        reads past the end of strings.
        * testsuite/21_strings/basic_string/operations/compare/char/1.cc:
        Likewise.
        * testsuite/21_strings/char_traits/requirements/short/1.cc: Fix
        invalid array accesses.
        * testsuite/experimental/string_view/operations/compare/char/1.cc:
        Fix read past the end of string.
        * testsuite/util/testsuite_character.cc: Fix out-of-bounds write.

        * testsuite/24_iterators/container_access.cc: Fix missing returns.
        * testsuite/24_iterators/range_access_cpp14.cc: Likewise.

        * testsuite/18_support/new_delete_placement.cc: Don't allocate (and
        leak) memory for arguments to placement delete.
        * testsuite/20_util/addressof/1.cc: Don't leak memory.
        * testsuite/22_locale/locale/global_locale_objects/3.cc: Likewise.
        * testsuite/23_containers/unordered_multimap/insert/55028-debug.cc:
        Likewise.

2016-07-20  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/intro.xml: Document DR 2684 status.
        * doc/html/*: Regenerate.

        * include/std/atomic (atomic_int8_t, atomic_uint8_t, atomic_int16_t)
        (atomic_uint16_t, atomic_int32_t, atomic_uint32_t, atomic_int64_t)
        (atomic_uint64_t): Define (LWG 2441).
        * testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc: Remove empty
        lines.
        * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Test for
        the new types.
        * doc/xml/manual/intro.xml: Document DR 2441 status.

        * include/std/istream (operator>>(basic_istream&&, _Tp&)): Adjust
        to use perfect forwarding (LWG 2328).
        * testsuite/27_io/rvalue_streams.cc: Test perfect forwarding.
        * doc/xml/manual/intro.xml: Document DR 2328 status.

        * libsupc++/pbase_type_info.cc (__pbase_type_info::__do_catch): Use
        static objects for catching nullptr as pointer to member types.

2016-07-18  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Clean up optional's comments.
        * include/std/optional: Remove incorrect section headers
        from comments when redundant, replace bare section
        headers with more descriptive comments.

2016-07-15  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/algorithmfwd.h: Change C++0x to C++11 in comments.
        * include/bits/move.h: Likewise.
        * include/bits/postypes.h: Likewise.
        * include/debug/bitset: Likewise.
        * include/ext/pb_ds/detail/type_utils.hpp: Likewise.
        * include/ext/string_conversions.h: Change C++0x to __cxx11 in
        comment.
        * testsuite/27_io/fpos/14320-1.cc: Change C++0x to C++11 in comment.
        * testsuite/util/thread/all.h: Likewise.

        * include/bits/stl_algo.h (for_each): Remove redundant _GLIBCXX_MOVE
        and adjust comment.

        PR c++/58796
        * libsupc++/pbase_type_info.cc (__pbase_type_info::__do_catch): Make
        nullptr match handlers of pointer type.

2016-07-15  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Implement C++17 P0025 clamp.
        * include/bits/algorithmfwd.h: Declare clamp overloads.
        * include/bits/stl_algo.h: Implement clamp.  Feature __cpp_lib_clamp.
        * testsuite/25_algorithms/clamp/1.cc: New test.
        * testsuite/25_algorithms/clamp/2.cc: New test.
        * testsuite/25_algorithms/clamp/constexpr.cc: New test.
        * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/
        1.cc: New test.
        * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/
        pod.cc: New test.

2016-07-14  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Fix the constraints for any's assignment operator template to properly
        reject assignment from a non-copyable lvalue.
        * include/std/any (operator=(_ValueType&&)): Constrain the decayed
        type for is_copy_constructible,
        * testsuite/20_util/any/requirements.cc: Add a test for
        non-copyable lvalues.

2016-07-14  Jonathan Wakely  <jwakely@redhat.com>

        * include/experimental/functional: Include <parallel/algorithm> in
        Parallel Mode.

        * testsuite/experimental/functional/searchers.cc: Include <algorithm>
        for std::search.

        PR libstdc++/70716
        * include/bits/forward_list.h (forward_list): Update doxygen comments
        to reflect allocator propagation semantics. Remove ambiguous
        statements about data being lost.
        * include/bits/stl_deque.h (deque): Likewise.
        * include/bits/stl_list.h (list): Likewise.
        * include/bits/stl_map.h (map): Likewise.
        * include/bits/stl_multimap.h (multimap): Likewise.
        * include/bits/stl_multiset.h (multiset): Likewise.
        * include/bits/stl_set.h (set): Likewise.
        * include/bits/stl_vector.h (vector): Likewise.
        * include/bits/unordered_map.h (unordered_map, unordered_multimap):
        Likewise.
        * include/bits/unordered_set.h (unordered_set, unordered_multiset):
        Likewise.

2016-07-14  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement P0032R3, Homogeneous interface for variant, any and optional,
        for the parts concerning any and optional.
        * include/std/any (_Storage()): Make constexpr and have it
        initialize _M_ptr.
        (any()): Make constexpr.
        (any(const any&)): Adjust.
        (any(any&&)): Likewise.
        (__any_constructible_t): New.
        (any(_ValueType&&)): Constrain.
        (any(in_place_type_t<_Tp>, _Args&&...)): New.
        (any(in_place_type_t<_Tp>, initializer_list<_Up>, _Args&&...)):
        Likewise.
        (~any()): Adjust.
        (operator=(const any&)): Likewise.
        (operator=(any&&)): Likewise.
        (operator=(_ValueType&&)): Constrain.
        (emplace(_Args&&...)): New.
        (emplace(initializer_list<_Up>, _Args&&...)): Likewise.
        (clear()): Remove.
        (reset()): New.
        (swap(any&)): Adjust.
        (empty()): Remove.
        (has_value()): New.
        (type()): Adjust.
        (_Manager_internal::_S_create(_Storage&, _Args&&...)): New.
        (_Manager_external::_S_create(_Storage&, _Args&&...)): Likewise.
        (make_any(_Args&&...)): Likewise.
        (make_any(initializer_list<_Up>, _Args&&...)): Likewise.
        * include/std/optional (in_place_t, in_place): Remove.
        (bad_optional_access): Add a comment referring to LEWG 72.
        (emplace(_Args&&...)): Constrain.
        (has_value()): New.
        (reset()): Likewise.
        (make_optional(_Args&&...)): Likewise.
        (make_optional(initializer_list<_Up>, _Args&&...)): Likewise.
        * include/std/utility (in_place_tag): New.
        (__in_place, __in_place_type, __in_place_index): Likewise.
        (in_place_t, in_place_type_t, in_place_index_t): Likewise.
        (in_place(__in_place*)): Likewise.
        (in_place(__in_place_type<_Tp>*)): Likewise.
        (in_place(__in_place_index<_Idx>*)): Likewise.
        * testsuite/20_util/any/assign/1.cc: Adjust.
        * testsuite/20_util/any/assign/emplace.cc: New.
        * testsuite/20_util/any/assign/self.cc: Adjust.
        * testsuite/20_util/any/cons/1.cc: Likewise.
        * testsuite/20_util/any/cons/in_place.cc: New.
        * testsuite/20_util/any/make_any.cc: Likewise.
        * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
        * testsuite/20_util/any/misc/swap.cc: Likewise.
        * testsuite/20_util/any/modifiers/1.cc: Likewise.
        * testsuite/20_util/any/requirements.cc: New.
        * testsuite/20_util/in_place/requirements.cc: Likewise.
        * testsuite/20_util/optional/constexpr/in_place.cc: Adjust.
        * testsuite/20_util/optional/in_place.cc: Likewise.
        * testsuite/20_util/optional/make_optional.cc: Add tests for
        the new overloads of make_optional.

2016-07-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement P0307R2, Making Optional Greater Equal Again.
        * include/experimental/optional (_Has_addressof): Fix the comment.
        * include/std/optional (_Has_addressof): Likewise.
        (operator=(_Up&&)): Constrain.
        (operator=(const optional<_Up>&)): Likewise.
        (operator=(optional<_Up>&&)): Likewise.
        (__optional_relop_t): New.
        (operator==(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
        (operator!=(const optional<_Tp>&, const optional<_Tp>&)):
        Constrain and make transparent.
        (operator<(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
        (operator>(const optional<_Tp>&, const optional<_Tp>&)):
        Constrain and make transparent.
        (operator<=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
        (operator>=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
        (operator==(const optional<_Tp>&, const _Tp&): Constrain.
        (operator==(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator!=(const optional<_Tp>&, _Tp const&)):
        Constrain and make transparent.
        (operator!=(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator<(const optional<_Tp>&, const _Tp&)): Constrain.
        (operator<(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator>(const optional<_Tp>&, const _Tp&)):
        Constrain and make transparent.
        (operator>(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator<=(const optional<_Tp>&, const _Tp&)): Likewise.
        (operator<=(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator>=(const optional<_Tp>&, const _Tp&)): Likewise.
        (operator>=(const _Tp&, const optional<_Tp>&)): Likewise.
        * testsuite/20_util/optional/constexpr/relops/2.cc: Adjust.
        * testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
        * testsuite/20_util/optional/relops/1.cc: Likewise.
        * testsuite/20_util/optional/relops/2.cc: Likewise.
        * testsuite/20_util/optional/relops/3.cc: Likewise.
        * testsuite/20_util/optional/relops/4.cc: Likewise.
        * testsuite/20_util/optional/requirements.cc: Add tests to verify
        that optional's relops are transparent and don't synthesize
        operators. Also test that assignment sfinaes.

2016-07-13  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71856
        * include/bits/c++config (_GLIBCXX_ASSERTIONS): Define to 1 not empty.
        * include/parallel/compiletime_settings.h (_GLIBCXX_ASSERTIONS):
        Rename to _GLIBCXX_PARALLEL_ASSERTIONS and make default value depend
        on _GLIBCXX_ASSERTIONS.
        * include/parallel/balanced_quicksort.h: Rename _GLIBCXX_ASSERTIONS.
        Include <unistd.h> for sleep.
        * include/parallel/losertree.h: Rename _GLIBCXX_ASSERTIONS.
        * include/parallel/merge.h: Likewise.
        * include/parallel/multiway_merge.h: Likewise.
        * include/parallel/partition.h: Likewise.
        * include/parallel/queue.h: Likewise.
        * include/parallel/sort.h: Likewise.
        * testsuite/25_algorithms/headers/algorithm/
        parallel_algorithm_assert.cc: New.

        * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
        (replace(__const_iterator, __const_iterator, initializer_list<C>)):
        Forward to different overload.

        * include/bits/allocated_ptr.h (__allocated_ptr::_S_raw_ptr): Make
        static.

2016-07-13  Jonathan Wakely  <jwakely@redhat.com>

        Revert "Add non-const overload of std::string::data()".

2016-07-13  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement P0307R2, Making Optional Greater Equal Again.
        * include/experimental/optional (_Has_addressof): Fix the comment.
        * include/std/optional (_Has_addressof): Likewise.
        (operator=(_Up&&)): Constrain.
        (operator=(const optional<_Up>&)): Likewise.
        (operator=(optional<_Up>&&)): Likewise.
        (__optional_relop_t): New.
        (operator==(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
        (operator!=(const optional<_Tp>&, const optional<_Tp>&)):
        Constrain and make transparent.
        (operator<(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
        (operator>(const optional<_Tp>&, const optional<_Tp>&)):
        Constrain and make transparent.
        (operator<=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
        (operator>=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
        (operator==(const optional<_Tp>&, const _Tp&): Constrain.
        (operator==(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator!=(const optional<_Tp>&, _Tp const&)):
        Constrain and make transparent.
        (operator!=(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator<(const optional<_Tp>&, const _Tp&)): Constrain.
        (operator<(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator>(const optional<_Tp>&, const _Tp&)):
        Constrain and make transparent.
        (operator>(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator<=(const optional<_Tp>&, const _Tp&)): Likewise.
        (operator<=(const _Tp&, const optional<_Tp>&)): Likewise.
        (operator>=(const optional<_Tp>&, const _Tp&)): Likewise.
        (operator>=(const _Tp&, const optional<_Tp>&)): Likewise.
        * testsuite/20_util/optional/constexpr/relops/2.cc: Adjust.
        * testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
        * testsuite/20_util/optional/relops/1.cc: Likewise.
        * testsuite/20_util/optional/relops/2.cc: Likewise.
        * testsuite/20_util/optional/relops/3.cc: Likewise.
        * testsuite/20_util/optional/relops/4.cc: Likewise.
        * testsuite/20_util/optional/requirements.cc: Add tests to verify
        that optional's relops are transparent and don't synthesize
        operators. Also test that assignment sfinaes.

2016-07-13  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI] (_M_c_str):
        New function.
        (_M_disjunct, basic_string(const basic_string&, size_t)): Use data()
        instead of _M_data().
        (basic_string(const basic_string&, size_t, size_t, const _Alloc&)):
        Likewise.
        (append(const basic_string&)): Likewise.
        (append(const basic_string&, size_type, size_type)): Likewise.
        (assign(const basic_string&, size_type, size_type)): Likewise.
        (insert(size_type, const basic_string&)): Likewise.
        (insert(size_type, const basic_string&, size_type, size_type)):
        Likewise.
        (replace(size_type, size_type, const basic_string&, size_type,
        size_type)): Likewise.
        (replace(__const_iterator, __const_iterator, const basic_string&)):
        Likewise.
        (c_str(), data()): Use c_str() instead of _M_data().
        (data()): Add non-const overload as per LWG 2391 and P0272R1.
        (compare(const basic_string&)): Use data() instead of _M_data().
        [!_GLIBCXX_USE_CXX11_ABI] (data()): Add non-const overload.
        * include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI] (_M_mutate):
        Pass raw pointers to _S_copy.
        (_M_erase, _M_replace_aux): Pass raw pointers to _S_move and
        _S_assign.
        (find(const _CharT*, size_type, size_type)): Use data instead of
        _M_data().
        * testsuite/21_strings/basic_string/allocator/char/ext_ptr.cc: New.
        * testsuite/21_strings/basic_string/operations/data/char/2.cc: New.
        * testsuite/21_strings/basic_string/operations/data/wchar_t/2.cc: New.

2016-07-12  Jonathan Wakely  <jwakely@redhat.com>

        * libsupc++/new: Remove nothrow sized deletes (LWG 2458).
        * doc/xml/manual/intro.xml: Document DR 2458 status.
        * doc/html*: Regenerate.

        * testsuite/20_util/pair/astuple/astuple.cc: Only include <utility>.
        * testsuite/23_containers/array/tuple_interface/tuple_element.cc:
        Only include <array>.
        * testsuite/23_containers/array/tuple_interface/tuple_size.cc:
        Likewise.
        * doc/xml/manual/intro.xml: Document LWG 2212 support.
        * doc/html*: Regenerate.

        * testsuite/23_containers/vector/modifiers/emplace/self_emplace.cc:
        Add testcase from LWG 2164.

2016-07-11  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_vector.h (push_back(const value_type&)): Forward
        to _M_realloc_insert.
        (insert(const_iterator, value_type&&)): Forward to _M_insert_rval.
        (_M_realloc_insert): Declare new function.
        (_M_emplace_back_aux): Remove definition.
        * include/bits/vector.tcc (emplace_back(_Args...)):
        Use _M_realloc_insert.
        (insert(const_iterator, const value_type&)): Likewise.
        (_M_insert_rval, _M_emplace_aux): Likewise.
        (_M_emplace_back_aux): Remove declaration.
        (_M_realloc_insert): Define.
        * testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
        Adjust expected results for emplacing an lvalue with reallocation.

2016-07-10  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement std::optional.
        * include/Makefile.am: Add optional to exported headers.
        * include/Makefile.in: Likewise.
        * include/std/optional: New.
        * testsuite/20_util/optional/typedefs.cc: Likewise.
        * testsuite/20_util/optional/relops/2.cc: Likewise.
        * testsuite/20_util/optional/relops/3.cc: Likewise.
        * testsuite/20_util/optional/relops/4.cc: Likewise.
        * testsuite/20_util/optional/relops/5.cc: Likewise.
        * testsuite/20_util/optional/relops/1.cc: Likewise.
        * testsuite/20_util/optional/relops/6.cc: Likewise.
        * testsuite/20_util/optional/nullopt.cc: Likewise.
        * testsuite/20_util/optional/in_place.cc: Likewise.
        * testsuite/20_util/optional/make_optional.cc: Likewise.
        * testsuite/20_util/optional/assignment/2.cc: Likewise.
        * testsuite/20_util/optional/assignment/3.cc: Likewise.
        * testsuite/20_util/optional/assignment/4.cc: Likewise.
        * testsuite/20_util/optional/assignment/5.cc: Likewise.
        * testsuite/20_util/optional/assignment/1.cc: Likewise.
        * testsuite/20_util/optional/assignment/6.cc: Likewise.
        * testsuite/20_util/optional/cons/value_neg.cc: Likewise.
        * testsuite/20_util/optional/cons/default.cc: Likewise.
        * testsuite/20_util/optional/cons/move.cc: Likewise.
        * testsuite/20_util/optional/cons/value.cc: Likewise.
        * testsuite/20_util/optional/cons/copy.cc: Likewise.
        * testsuite/20_util/optional/requirements.cc: Likewise.
        * testsuite/20_util/optional/observers/2.cc: Likewise.
        * testsuite/20_util/optional/observers/3.cc: Likewise.
        * testsuite/20_util/optional/observers/4.cc: Likewise.
        * testsuite/20_util/optional/observers/5.cc: Likewise.
        * testsuite/20_util/optional/observers/1.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/2.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/3.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/5.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/1.cc: Likewise.
        * testsuite/20_util/optional/constexpr/relops/6.cc: Likewise.
        * testsuite/20_util/optional/constexpr/nullopt.cc: Likewise.
        * testsuite/20_util/optional/constexpr/in_place.cc: Likewise.
        * testsuite/20_util/optional/constexpr/make_optional.cc: Likewise.
        * testsuite/20_util/optional/constexpr/cons/default.cc: Likewise.
        * testsuite/20_util/optional/constexpr/cons/value.cc: Likewise.
        * testsuite/20_util/optional/constexpr/observers/2.cc: Likewise.
        * testsuite/20_util/optional/constexpr/observers/3.cc: Likewise.
        * testsuite/20_util/optional/constexpr/observers/4.cc: Likewise.
        * testsuite/20_util/optional/constexpr/observers/5.cc: Likewise.
        * testsuite/20_util/optional/constexpr/observers/1.cc: Likewise.
        * testsuite/20_util/optional/swap/1.cc: Likewise.

2016-07-08  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/23_containers/vector/modifiers/insert/aliasing.cc: New.

2016-07-07  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/status_cxx2014.xml: Update LFTS status table.
        * doc/html/*: Regenerate.

2016-07-07  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement std::any.
        * include/Makefile.am: Add any and c++17_warning.h to exported headers.
        * include/Makefile.in: Likewise.
        * include/std/any: New.
        * testsuite/20_util/any/assign/1.cc: Likewise.
        * testsuite/20_util/any/assign/2.cc: Likewise.
        * testsuite/20_util/any/assign/self.cc: Likewise.
        * testsuite/20_util/any/cons/1.cc: Likewise.
        * testsuite/20_util/any/cons/2.cc: Likewise.
        * testsuite/20_util/any/cons/aligned.cc: Likewise.
        * testsuite/20_util/any/cons/nontrivial.cc: Likewise.
        * testsuite/20_util/any/misc/any_cast.cc: Likewise.
        * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise.
        * testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
        * testsuite/20_util/any/misc/swap.cc: Likewise.
        * testsuite/20_util/any/modifiers/1.cc: Likewise.
        * testsuite/20_util/any/observers/type.cc: Likewise.
        * testsuite/20_util/any/typedefs.cc: Likewise.

2016-07-06  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Add a new header for diagnosing the use of C++17 facilities
        in pre-C++17 modes.
        * include/bits/c++17_warning.h: New.

2016-07-06  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement LWG 2451, optional<T> should 'forward' T's
        implicit conversions.
        * include/experimental/optional (__is_optional_impl, __is_optional):
        New.
        (optional()): Make constexpr and default.
        (optional(_Up&&), optional(const optional<_Up>&),
        optional(optional<_Up>&& __t): New.
        (operator=(_Up&&)): Constrain.
        (operator=(const optional<_Up>&), operator=(optional<_Up>&&)): New.
        * testsuite/experimental/optional/cons/value.cc:
        Add tests for the functionality added by LWG 2451.
        * testsuite/experimental/optional/cons/value_neg.cc: New.

2016-07-05  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Implement LWG 2509,
        any_cast doesn't work with rvalue reference targets and cannot
        move with a value target.
        * include/experimental/any (any(_ValueType&&)): Constrain and
        add an overload that doesn't forward.
        (any_cast(any&&)): Constrain and add an overload that moves.
        * testsuite/experimental/any/misc/any_cast.cc: Add tests for
        the functionality added by LWG 2509.

2016-07-04  François Dumont  <fdumont@gcc.gnu.org>

        * testsuite/23_containers/vector/modifiers/emplace/self_emplace.cc:
        New test.
        * testsuite/23_containers/vector/modifiers/insert/self_insert.cc: New
        test.

2016-07-04  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/stl_vector.h (emplace(const_iterator, _Args&&...)):
        Define inline. Forward to _M_emplace_aux.
        (insert(const_iterator, value_type&&)): Forward to _M_insert_rval.
        (_M_insert_rval, _M_emplace_aux): Declare new functions.
        (_Temporary_value): New RAII type using allocator to construct/destroy.
        (_S_insert_aux_assign): Remove.
        (_M_insert_aux): Make non-variadic.
        * include/bits/vector.tcc (insert(const_iterator, const value_type&)):
        Use _Temporary_value.
        (emplace(const_iterator, _Args&&...)): Remove definition.
        (_M_insert_rval, _M_emplace_aux): Define.
        (_M_insert_aux): Make non-variadic, stop using _S_insert_aux_assign.
        (_M_fill_insert): Use _Temporary_value.
        * testsuite/23_containers/vector/allocator/construction.cc: New test.
        * testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
        Adjust expected results for emplacing an lvalue with reallocation.
        * testsuite/23_containers/vector/check_construct_destroy.cc: Adjust
        expected results to account for construction/destruction of temporary
        using allocator.
        * testsuite/backward/hash_set/check_construct_destroy.cc: Likewise.

2016-07-04  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/71313
        * src/filesystem/ops.cc (remove_all(const path&, error_code&)):
        Call remove_all for children of a directory.
        * testsuite/experimental/filesystem/operations/create_directories.cc:
        Adjust.

2016-07-02  François Dumont  <fdumont@gcc.gnu.org>

        * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: Adjust
        dg-error line numbers.
        * testsuite/23_containers/array/tuple_interface/
        tuple_element_debug_neg.cc: Likewise.
        * testsuite/25_algorithms/lexicographical_compare/debug/
        irreflexive_neg.cc: Remove.

2016-06-30  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * testsuite/29_atomics/atomic/65913.cc: Require atomic-builtins rather
        than specific target.

2016-06-27  François Dumont  <fdumont@gcc.gnu.org>

        PR libstdc++/71640
        * include/bits/hashtable.h: Remove _Unique_keya parameter in _Insert
        friend declaration.

2016-06-23  François Dumont  <fdumont@gcc.gnu.org>

        * include/debug/array (array<>::swap): Fix noexcept qualificaton for
        zero-size array.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * configure.host: Remove mep-* support.

2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

        * configure: Regenerate.
        * configure.host: Remove support for knetbsd.
        * crossconfig.m4: Likewise.

2016-06-20  François Dumont  <fdumont@gcc.gnu.org>

        PR libstdc++/71181
        * include/tr1/hashtable_policy.h
        (_Prime_rehash_policy::_M_next_bkt): Make past-the-end iterator
        dereferenceable to avoid check on lower_bound result.
        (_Prime_rehash_policy::_M_bkt_for_elements): Call latter.
        (_Prime_rehash_policy::_M_need_rehash): Likewise.
        * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
        Always return a value greater than input value. Set _M_next_resize to
        max value when reaching highest prime number.
        * src/shared/hashtable-aux.cc (__prime_list): Add comment about sentinel
        being now useless.
        * testsuite/23_containers/unordered_set/hash_policy/71181.cc: New.
        * testsuite/23_containers/unordered_set/hash_policy/power2_rehash.cc
        (test02): New.
        * testsuite/23_containers/unordered_set/hash_policy/prime_rehash.cc: New.
        * testsuite/23_containers/unordered_set/hash_policy/rehash.cc:
        Fix indentation.

2016-06-17  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71545
        * include/bits/stl_algobase.h (lower_bound, lexicographical_compare):
        Remove irreflexive checks.
        * include/bits/stl_algo.h (lower_bound, upper_bound, equal_range,
        binary_search): Likewise.
        * testsuite/25_algorithms/equal_range/partitioned.cc: New test.
        * testsuite/25_algorithms/lexicographical_compare/71545.cc: New test.
        * testsuite/25_algorithms/lower_bound/partitioned.cc: New test.
        * testsuite/25_algorithms/upper_bound/partitioned.cc: New test.
        * testsuite/util/testsuite_iterators.h (__gnu_test::test_container):
        Add constructor from array.

2016-06-16  François Dumont  <fdumont@gcc.gnu.org>

        * include/debug/debug.h
        (__glibcxx_requires_non_empty_range, __glibcxx_requires_nonempty)
        (__glibcxx_requires_subscript): Move...
        * include/debug/assertions.h: ...here and add __builtin_expect.
        (_GLIBCXX_DEBUG_ONLY): Remove ; value.
        * include/bits/stl_deque.h
        (std::deque<>::operator[]): Add __glibcxx_requires_subscript check.
        (std::deque<>::front()): Add __glibcxx_requires_nonempty check.
        (std::deque<>::back()): Likewise.
        (std::deque<>::pop_front()): Likewise.
        (std::deque<>::pop_back()): Likewise.
        (std::deque<>::swap(deque&)): Add allocator check.
        * include/bits/stl_vector.h
        (std::vector<>::operator[]): Add __glibcxx_requires_subscript check.
        (std::vector<>::front()): Add __glibcxx_requires_nonempty check.
        (std::vector<>::back()): Likewise.
        (std::vector<>::pop_back()): Likewise.
        (std::vector<>::swap(vector&)): Add allocator check.

2016-06-16  Daniel Kruegler  <daniel.kruegler@gmail.com>

        Provide swappable traits (p0185r1)
        * include/std/type_traits (is_swappable, is_nothrow_swappable,
        is_swappable_with, is_nothrow_swappable_with, is_swappable_v,
        is_nothrow_swappable_v, is_swappable_with_v,
        is_nothrow_swappable_with_v): New.
        * include/bits/stl_pair.h: Use it as per p0185r1.
        * include/bits/stl_queue.h: Likewise.
        * include/bits/stl_stack.h: Likewise.
        * include/bits/unique_ptr.h: Likewise.
        * include/std/tuple: Likewise.
        * include/std/array: Likewise. Fix zero-size member swap.
        * include/bits/hashtable.h: Use __and_.
        * testsuite/20_util/is_nothrow_swappable/requirements/
        explicit_instantiation.cc: Change test options to std=gnu++17.
        * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
        Likewise.
        * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
        * testsuite/20_util/is_swappable/requirements/
        explicit_instantiation.cc: Likewise.
        * testsuite/20_util/is_swappable/requirements/typedefs.cc: Likewise.
        * testsuite/20_util/is_swappable/value.cc: Likewise.
        * testsuite/20_util/is_nothrow_swappable/requirements/
        explicit_instantiation_ext.cc: New.
        * testsuite/20_util/is_nothrow_swappable/requirements/typedefs_ext.cc:
        New.
        * testsuite/20_util/is_nothrow_swappable/value.h: New.
        * testsuite/20_util/is_nothrow_swappable/value_ext.cc: New.
        * testsuite/20_util/is_nothrow_swappable_with/requirements/
        explicit_instantiation.cc: New.
        * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
        New.
        * testsuite/20_util/is_nothrow_swappable_with/value.cc: New.
        * testsuite/20_util/is_swappable/requirements/
        explicit_instantiation_ext.cc: New.
        * testsuite/20_util/is_swappable/requirements/typedefs_ext.cc: New.
        * testsuite/20_util/is_swappable/value.h: New.
        * testsuite/20_util/is_swappable/value_ext.cc: New.
        * testsuite/20_util/is_swappable_with/requirements/
        explicit_instantiation.cc: New.
        * testsuite/20_util/is_swappable_with/requirements/typedefs.cc: New.
        * testsuite/20_util/is_swappable_with/value.cc: New.
        * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust
        dg-error line numbers.
        * testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
        Likewise.

2016-06-16  Jonathan Wakely  <jwakely@redhat.com>

        * include/std/array: Remove trailing whitespace.
        * include/std/atomic: Likewise.
        * include/std/bitset: Likewise.
        * include/std/chrono: Likewise.
        * include/std/complex: Likewise.
        * include/std/condition_variable: Likewise.
        * include/std/fstream: Likewise.
        * include/std/functional: Likewise.
        * include/std/future: Likewise.
        * include/std/iomanip: Likewise.
        * include/std/iosfwd: Likewise.
        * include/std/istream: Likewise.
        * include/std/limits: Likewise.
        * include/std/ratio: Likewise.
        * include/std/scoped_allocator: Likewise.
        * include/std/sstream: Likewise.
        * include/std/stdexcept: Likewise.
        * include/std/string: Likewise.
        * include/std/system_error: Likewise.
        * include/std/thread: Likewise.
        * include/std/tuple: Likewise.
        * include/std/type_traits: Likewise.
        * include/std/utility: Likewise.
        * include/std/valarray: Likewise.
        * include/std/vector: Likewise.

        * include/bits/stl_vector.h (vector::_S_insert_aux_assign): Define
        new overloaded functions.
        * include/bits/vector.tcc (vector::_M_insert_aux): Use new functions
        to avoid creating a redundant temporary.
        * testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc: New
        test.

2016-06-15  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/stl_deque.h
        (std::deque<>::operator=): Call _M_assign_aux.
        (std::deque<>::assign(initializer_list<>)): Likewise.
        (std::deque<>::resize(size_t, const value_type&)): Call _M_fill_insert.
        (std::deque<>::insert(const_iterator, initializer_list<>)):
        Call _M_range_insert_aux.
        (std::deque<>::_M_assign_aux<It>(It, It, std::forward_iterator_tag):
        Likewise.
        (std::deque<>::_M_fill_assign): Call _M_fill_insert.
        (std::deque<>::_M_move_assign2): Call _M_assign_aux.
        * include/bits/deque.tcc
        (std::deque<>::operator=): Call _M_range_insert_aux.
        (std::deque<>::_M_assign_aux<It>(It, It, std::input_iterator_tag)):
        Likewise.
        * include/bits/stl_vector.h
        (std::vector<>::operator=): Call _M_assign_aux.
        (std::vector<>::assign(initializer_list<>)): Likewise.
        (std::vector<>::resize(size_t, const value_type&)): Call _M_fill_insert.
        (std::vector<>::insert(const_iterator, initializer_list<>)):
        Call _M_range_insert.
        * include/bits/vector.tcc (std::vector<>::_M_assign_aux): Likewise.

2016-06-07  François Dumont  <fdumont@gcc.gnu.org>

        * include/std/tuple (_Head_base<>): Default specialization condition at
        type declaration.

2016-06-06  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Support allocators in tuples of zero size.
        * include/std/tuple (tuple<>::tuple(),
        tuple<>::tuple(allocator_arg_t, const _Alloc&),
        tuple<>::tuple(allocator_arg_t, const _Alloc&, const tuple&)): New.
        * testsuite/20_util/tuple/cons/allocators.cc: Adjust.

2016-06-06  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71320
        * src/filesystem/ops.cc (permissions(const path&, perms, error_code&)):
        Add or remove permissions according to perms argument.
        * testsuite/experimental/filesystem/operations/permissions.cc: New
        test.

2016-06-05  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Protect allocator-overloads of tuple-from-tuple constructors
        from cases that would create dangling references.
        * include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
        const tuple<_UElements...>&), tuple(allocator_arg_t, const _Alloc&,
        tuple<_UElements...>&&)): Add a check for _NonNestedTuple.
        * testsuite/20_util/tuple/cons/nested_tuple_construct.cc: Adjust.

2016-05-29  Gerald Pfeifer  <gerald@pfeifer.com>

        * doc/xml/manual/backwards_compatibility.xml: Adjust
        lists.debian.org link to https.
        * doc/html/manual/backwards.html: Regenerate.

2016-05-27  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/abi.xml: Adjust URL to use https.
        * doc/html/manual/*: Regenerate.

2016-05-27  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/66338
        * include/std/tuple (_TMC): Add a check for _NotSameTuple.
        * include/std/tuple (tuple(_UElements&&...)): Remove the separate
        check for _NotSameTuple.
        * include/std/tuple (_TMCT): New.
        * include/std/tuple (tuple(const tuple<_UElements...>&)): Use it.
        * include/std/tuple (tuple(tuple<_UElements...>&&)): Likewise.
        * include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
              const tuple<_UElements...>&)): Likewise.
        * include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
              tuple<_UElements...>&&)): Likewise.
        * testsuite/20_util/tuple/cons/66338.cc: New.

2016-05-25  Jonathan Wakely  <jwakely@redhat.com>

        * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Fix test for sendfile.
        * configure: Regenerate.
        * config.h.in: Regenerate.

        * include/bits/c++config (_GLIBCXX14_USE_CONSTEXPR): Remove it.
        * include/bits/hashtable_policy.h (_Power2_rehash_policy::_M_next_bkt):
        Remove const qualification on function. Replace
        _GLIBCXX14_USE_CONSTEXPR on automatic variables with const.
        (_Power2_rehash_policy::_M_need_rehash): Remove const qualification.
        (_Power2_rehash_policy::_M_next_bkt): Remove mutable specifier.

2016-05-24  François Dumont  <fdumont@gcc.gnu.org>

        * include/bits/c++config (_GLIBCXX14_USE_CONSTEXPR): New.
        * include/bits/hashtable_policy.h
        (_Prime_rehash_policy::__has_load_factor): New. Mark rehash policy
        having load factor management.
        (_Mask_range_hashing): New.
        (__clp2): New.
        (_Power2_rehash_policy): New.
        (_Inserts<>): Remove last template parameter, _Unique_keys, so that
        partial specializations only depend on whether iterators are constant
        or not.
        * testsuite/23_containers/unordered_set/hash_policy/26132.cc: Adapt to
        test new hash policy.
        * testsuite/23_containers/unordered_set/hash_policy/load_factor.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/hash_policy/rehash.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/insert/hash_policy.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/max_load_factor/robustness.cc:
        Likewise.
        * testsuite/23_containers/unordered_set/hash_policy/power2_rehash.cc:
        New.
        * testsuite/performance/23_containers/insert/54075.cc: Add benchmark
        using the new hash policy.
        * testsuite/performance/23_containers/insert_erase/41975.cc: Likewise.

2016-05-24  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/stl_queue.h (priority_queue::value_compare): Define.

2016-05-23  François Dumont  <fdumont@gcc.gnu.org>

        * include/debug/safe_iterator.h
        (_Safe_iterator<>::operator->()): Implement using underlying iterator
        operator ->.
        * include/debug/safe_local_iterator.h
        (_Safe_local_iterator<>::operator->()): Likewise.

2016-05-20  Thomas Preud'homme  <thomas.preudhomme@arm.com>

        * testsuite/experimental/memory_resource/1.cc: Add required argument
        to dg-require-atomic-builtins.

2016-05-13  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71073
        * include/debug/bitset: Add #pragma GCC system_header.
        * include/debug/deque: Likewise.
        * include/debug/list: Likewise.
        * include/debug/map: Likewise.
        * include/debug/set: Likewise.
        * include/debug/string: Likewise.
        * include/debug/unordered_map: Likewise.
        * include/debug/unordered_set: Likewise.
        * include/debug/vector: Likewise.
        * include/debug/functions.h: Adjust whitespace.

2016-05-12  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71081
        * testsuite/experimental/memory_resource/1.cc: Require atomics.

2016-05-11  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71049
        * src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_DUAL_ABI]: Don't define
        exception constructors with __sso_string parameters.

2016-05-10  Jonathan Wakely  <jwakely@redhat.com>

        * include/experimental/bits/fs_dir.h (begin, end): Add noexcept.
        * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
        Test begin and end functions.
        * testsuite/experimental/filesystem/iterators/
        recursive_directory_iterator.cc: Likewise.

        PR libstdc++/71038
        * src/filesystem/ops.cc (do_copy_file): Fix backwards conditions.
        * testsuite/experimental/filesystem/operations/copy_file.cc: New test.

        * include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
        Overload operator* to move from rvalues.

        PR libstdc++/71036
        * src/filesystem/ops.cc (create_dir): Handle EEXIST from mkdir.
        * testsuite/experimental/filesystem/operations/create_directory.cc:
        New test.

        PR libstdc++/71037
        * src/filesystem/ops.cc (canonical(const path&, const path&)): Add
        base path to exception.
        * testsuite/experimental/filesystem/operations/canonical.cc: Test
        paths contained in exception.

        * testsuite/experimental/type_erased_allocator/2.cc: Remove unused
        using declaration.

        PR libstdc++/71005
        * include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
        New type.
        (directory_iterator::operator++(int)): Return proxy.
        (recursive_directory_iterator::operator++(int)): Likewise.
        * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
        Test post-increment.
        * testsuite/experimental/filesystem/iterators/
        recursive_directory_iterator.cc: Likewise.

2016-05-09  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71004
        * testsuite/experimental/filesystem/iterators/
        recursive_directory_iterator.cc: Fix test02 to not call member
        functions on invalid iterator, and use VERIFY not assert.

2016-05-09  Ville Voutilainen  <ville.voutilainen@gmail.com>

        Avoid endless run-time recursion for copying single-element
        tuples where the element type is by-value constructible
        from any type.
        * include/std/tuple (_NotSameTuple): New.
        * include/std/tuple (tuple(_UElements&&...): Use it.
        * testsuite/20_util/tuple/cons/element_accepts_anything_byval.cc: New.

2016-05-09  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/71004
        * include/experimental/bits/fs_dir.h (recursive_directory_iterator):
        Initialize scalar member variables in default constructor.
        * testsuite/experimental/filesystem/iterators/
        recursive_directory_iterator.cc: Test default construction.

2016-05-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * testsuite/lib/libstdc++.exp (libstdc++_init): Enable on *-*-solaris*.

2016-05-05  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/experimental/filesystem/path/native/string.cc: Add
        dg-require-filesystem-ts directive.

2016-05-04  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70940
        * include/experimental/memory_resource
        (__resource_adaptor_imp::do_allocate): Do not default-construct
        rebound allocator.
        (__resource_adaptor_imp::do_deallocate): Likewise. Use
        allocator_traits to get pointer type.
        (__null_memory_resource::do_allocate): Remove unused parameters.
        (__null_memory_resource::do_deallocate): Likewise.
        (__null_memory_resource::do_is_equal): Likewise. Add return statement.
        * testsuite/experimental/type_erased_allocator/1.cc: Combine with ...
        * testsuite/experimental/type_erased_allocator/1_neg.cc: This, and
        move to ...
        * testsuite/experimental/memory_resource/1.cc: Here.
        * testsuite/experimental/memory_resource/null_memory_resource.cc: New.
        * testsuite/experimental/memory_resource/resource_adaptor.cc: New.

2016-04-29  Chris Gregory  <czipperz@gmail.com>

        * config/*: Remove trailing whitespace.
        * src/*: Likewise.
        * testsuite/tr1/*: Likewise.
        * testsuite/util/*: Likewise.

2016-04-28  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70766
        * include/bits/basic_ios.tcc (basic_ios::_M_cache_locale): Use
        __addressof.
        * include/bits/stream_iterator.h (istream_iterator, ostream_iterator):
        Likewise.
        * include/std/atomic (atomic<_Tp>): Likewise.
        * include/std/shared_mutex (shared_lock): Likewise.
        * testsuite/24_iterators/istream_iterator/70766.cc: New test.
        * testsuite/24_iterators/ostream_iterator/70766.cc : New test.
        * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.
        * testsuite/29_atomics/atomic/70766.cc: New test.
        * testsuite/30_threads/shared_lock/70766.cc: New test.

        * include/bits/hashtable_policy.h (__detail::_Insert_base,
        __detail::_Insert): Improve comments.

2016-04-27  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70767
        * include/std/limits: Update comments about DRs.
        (numeric_limits<const _Tp>, numeric_limits<volatile _Tp>,
        numeric_limits<const volatile _Tp>): Define unconditionally.

2016-04-24  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70762
        * testsuite/util/testsuite_fs.h (__gnu_test::nonexistent_path): Use
        static counter to return a different path on every call.

2016-04-22  Tim Shen  <timshen@google.com>

        PR libstdc++/70745
        * include/bits/regex_executor.tcc (_Executor<>::_M_word_boundary):
        Fix the match_not_bow and match_not_eow behavior.
        * testsuite/28_regex/regression.cc: Add testcase.

2016-04-20  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69703
        * src/c++11/codecvt.cc (__codecvt_utf8_base<char16_t>::do_in,
        __codecvt_utf8_utf16_base<char16_t>::do_in): Fix mask operations.

2016-04-19  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69703
        * src/c++11/codecvt.cc (__codecvt_utf8_base<char16_t>::do_in):
        Override endianness bit in mode.
        * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: New test.
        * testsuite/22_locale/codecvt/codecvt_utf8_utf16/66855.cc: Test
        that little_endian mode is ignored.
        * testsuite/experimental/filesystem/path/native/string.cc: New test.

        PR libstdc++/70609
        * src/filesystem/ops.cc (close_fd): New function.
        (do_copy_file): Set permissions before copying file contents. Check
        result of closing file descriptors. Don't copy streambuf when file
        is empty.
        (copy(const path&, const path&, copy_options, error_code&)): Use
        lstat for source file when copy_symlinks is set.
        * testsuite/experimental/filesystem/operations/copy.cc: Test copy().

        * include/experimental/bits/fs_fwd.h (operator&, operator|, operator^,
        operator~ operator&=, operator|=, operator^=): Add noexcept to
        overloaded operators for copy_options, perms and directory_options.
        * src/filesystem/ops.cc (make_file_type, make_file_status,
        is_not_found_errno, file_time): Add noexcept.

2016-04-19  Edward Smith-Rowland  <3dw4rd@verizon.net>

        * include/bits/c++14_warning.h: Do not refer C++14 as experimental.

2016-04-18  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/41759
        * include/bits/random.h: Reword static assertion messages to state
        positive conditions.
        * include/bits/random.tcc: Likewise.
        * include/bits/uniform_int_dist.h: Likewise.
        * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
        patterns.

        * include/std/function (_Bind, _Bind_result): Remove unused typedefs.

        * config/cpu/sh/atomicity.h: Fix typo in comment.

        PR libstdc++/70294
        * include/std/thread (operator<, operator==): Move definitions to
        namespace-scope.
        * testsuite/30_threads/thread/id/70294.cc: New test.

        * testsuite/18_support/bad_exception/23591_thread-1.c: Add
        -Wno-pedantic to dg-options.
        * testsuite/20_util/align/2.cc: Use type as operand of alignof.
        * testsuite/20_util/is_floating_point/value.cc: Add -Wno-pedantic
        to dg-options.
        * testsuite/20_util/specialized_algorithms/uninitialized_fill/32158.cc:
        Remove extra semi-colon.
        * testsuite/23_containers/array/tuple_interface/tuple_element.cc:
        Always supply second argument to static_assert.
        * testsuite/25_algorithms/lower_bound/no_operator_ne.cc: Remove extra
        semi-colon.
        * testsuite/26_numerics/complex/c99.cc: Add -Wno-pedantic to
        dg-options.
        * testsuite/26_numerics/complex/literals/values.cc: Likewise.
        * testsuite/29_atomics/atomic/60695.cc: Likewise.
        * testsuite/29_atomics/atomic/62259.cc: use __alignof__ instead of
        alignof when operand is an object not a type.
        * testsuite/decimal/ctor.cc: Add -Wno-pedantic to dg-options.
        * testsuite/decimal/make-decimal.cc: Likewise.
        * testsuite/experimental/type_traits/value.cc: Always supply second
        argument to static_assert.
        * testsuite/util/testsuite_common_types.h: Use __extension__ for
        __int128 types.

        * testsuite/experimental/type_erased_allocator/1.cc: Don't include
        internal header.
        * testsuite/experimental/type_erased_allocator/1_neg.cc: Likewise.
        * testsuite/experimental/type_erased_allocator/2.cc: Likewise.
        * testsuite/experimental/type_erased_allocator/uses_allocator.cc:
        Likewise. Add licence and change to compile-only test.

        * include/bits/locale_facets.h (ctype::do_narrow): Add attribute to
        unused parameter.
        * include/bits/regex_automaton.h (_NFA::_M_insert_alt): Likewise.

        * include/ext/string_conversions.h (__stoa): Avoid -Wsign-compare
        warnings.

2016-04-17  Edward Smith-Rowland  <3dw4rd@verizon.net>

        * include/bits/specfun.h: Trivial comment misspelling.

2016-04-14  Jason Merrill  <jason@redhat.com>

        Revert Jonathan's empty ABI change from yesterday.

2016-04-13  Martin Sebor  <msebor@redhat.com>

        PR c++/69517
        * testsuite/25_algorithms/rotate/moveable2.cc: Make sure VLA
        upper bound is positive.

2016-04-13  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/c++config (_GLIBCXX_BEGIN_NAMESPACE_EMPTY_TYPES,
        _GLIBCXX_END_NAMESPACE_EMPTY_TYPES, _GLIBCXX_ABI_TAG_EMPTY): Define.
        * include/bits/hashtable.h (_Hashtable::_M_emplace): Change signatures
        of functions taking empty structs by value. Add a template parameter
        to overloads without hints. Rename overloads with hints to
        _M_emplace_hint.
        (_Hashtable::_M_erase(true_type, const_iterator),
        _Hashtable::_M_erase(false_type, const_iterator)): Change signatures
        by reordering parameters.
        * include/bits/hashtable_policy.h (_Insert::insert): Adjust to call
        _M_emplace_hint instead of _M_emplace.
        * include/bits/shared_ptr.h (shared_ptr(_Tp1*, _Deleter, _Alloc),
        shared_ptr(nullptr_t, _Deleter, _Alloc)): Use _GLIBCXX_ABI_TAG_EMPTY.
        * include/bits/shared_ptr_base.h (_Sp_counted_deleter, __shared_count,
        __shared_ptr): Likewise.
        * include/bits/stl_algo.h (replace_if): Likewise.
        * include/bits/stl_pair.h (piecewise_construct_t,
        piecewise_construct): Use _GLIBCXX_BEGIN_NAMESPACE_EMPTY_TYPES.
        * include/bits/uses_allocator.h (allocator_arg_t, allocator_arg,
        __uses_alloc0): Likewise.
        * include/ext/pb_ds/assoc_container.hpp (basic_hash_table): Likewise.
        * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
        * testsuite/20_util/shared_ptr/cons/43820_neg.cc: Likewise.
        * testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
        * testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
        * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
        * testsuite/ext/profile/mutex_extensions_neg.cc: Likewise.

2016-04-12  Edward Smith-Rowland  <3dw4rd@verizon.net>

        Document C++17/TR29124 C++ Special Math Functions.
        * include/bits/specfun.h: Add Doxygen markup.

2016-04-07  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/30_threads/thread/70503.cc: Adjust from xfail to pass.

2016-04-06  Eric Botcazou  <ebotcazou@adacore.com>

        * src/Makefile.am (libstdc++-symbols.ver): Remove useless /dev/null.
        * src/Makefile.in: Regenerate.

2016-04-05  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/70554
        * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Don't test
        __atomic_fetch_add for bool.
        * configure: Regenerate.

        * testsuite/30_threads/thread/70503.cc: Require -static to work.

        PR libstdc++/70503
        * src/c++11/thread.cc (execute_native_thread_routine,
        execute_native_thread_routine_compat): Give internal linkage.
        * testsuite/30_threads/thread/70503.cc: New test.

2016-04-05  Ville Voutilainen  <ville.voutilainen@gmail.com>

        PR libstdc++/70437
        * include/bits/stl_pair.h (_ConstructiblePair,
        _ImplicitlyConvertiblePair, _MoveConstructiblePair,
        _ImplicitlyMoveConvertiblePair): Add shortcut conditions
        for same-type cases.
        * testsuite/20_util/pair/70437.cc: New.

2016-03-24  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69945
        * config/abi/pre/gnu.ver: Add new symbol.
        * libsupc++/eh_alloc.cc (__gnu_cxx::__freeres): Define.
        * testsuite/18_support/free_eh_pool.cc: New test.

2016-03-23  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * include/Makefile.am (install-freestanding-headers): Add
        concept_check.h and move.h to the installed headers.
        * include/Makefile.in: Regenerated.
        * include/bits/concept_check.h: Ignore _GLIBCXX_CONCEPT_CHECKS for
        freestanding implementations.
        * doc/xml/manual/using.xml (_GLIBCXX_CONCEPT_CHECKS): Mention
        that this macro has no effect for freestanding implementations.
        * doc/html/manual/using_macros.html: Likewise.

2016-02-24  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69939
        * include/experimental/tuple (__apply_impl): Qualify get and forward.

2016-02-23  Jonathan Wakely  <jwakely@redhat.com>

        * doc/xml/manual/using.xml: Document __STDCPP_WANT_MATH_SPEC_FUNCS__.
        * doc/html/*: Regenerate.

        PR libstdc++/69893
        * include/tr1/cmath (acosh, asinh, atanh, cbrt, copysign, erf, erfc,
        exp2, expm1, fdim, fma, fmax, fmin, hypot, ilogb, lgamma, llrint,
        llround, log1p, log2, logb, lrint, lround, nan, nearbyint, nextafter,
        nexttoward, remainder, remquo, rint, round, scalbln, scalbn, tgamma,
        trunc) [__cplusplus >= 201103L]: Import from namespace std.
        (fabs) [__cplusplus < 201103L]: Import from namespace std.
        * include/tr1/complex (acosh, asinh, atanh) [__cplusplus >= 201103L]:
        Likewise.
        * testsuite/tr1/headers/c++200x/complex.cc: Add std::fabs to global
        namespace before including TR1 headers.
        * testsuite/tr1/headers/c++200x/math.cc: New test.

2016-02-23  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR libstdc++/69881
        * include/c_global/cstdarg: Undefine __need___va_list.
        * include/c_global/cstddef: Undefine all kinds of __need_*.

2016-02-16  Tim Shen  <timshen@google.com>

        PR libstdc++/69794
        * include/bits/regex_scanner.h: Add different special character
        sets for grep and egrep regex.
        * include/bits/regex_scanner.tcc: Use _M_spec_char more uniformly.
        * testsuite/28_regex/regression.cc: Add new testcase.

2016-02-08  Jonathan Wakely  <jwakely@redhat.com>

        * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Remove accidentally
        added 'constexpr' in previous commit.
        * configure: Regenerate.

        PR libstdc++/48891
        * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Enable isinf and isnan
        checks for all targets except *-*-solaris2.* and ensure we find the
        libc math.h header not our own.
        * configure: Regenerate.

2016-02-05  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt (FUNC):
        New file.  Copied over from s390-linux-gnu.

2016-02-04  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69626
        * acinclude.m4 (GLIBCXX_ENABLE_C99): Check C99 stdlib.h functions
        with -std=c++98 and define _GLIBCXX98_USE_C99_STDLIB.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * testsuite/21_strings/c_strings/char/69626.cc: New.

        * doc/html/index.html: Regenerate.

        * doc/xml/manual/containers.xml: Add cross-reference to Dual ABI.
        * doc/xml/manual/spine.xml: Update copyright years and author blurb.
        * doc/html/*: Regenerate.

2016-02-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR libstdc++/69581
        * include/c_compatibility/math.h: Move header guards.
        * include/c_compatibility/stdlib.h: Likewise.

2016-01-29  Jonathan Wakely  <jwakely@redhat.com>

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

2016-01-28  John David Anglin  <danglin@gcc.gnu.org>

        PR libstdc++/69450
        * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Split check for obsolete
        isinf and isnan functions into two independent checks.  Check on hpux.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * include/c_global/cmath (isinf(double), isnan(double)): Use
        _GLIBCXX_HAVE_OBSOLETE_ISINF and _GLIBCXX_HAVE_OBSOLETE_ISNAN,
        respectively.

2016-01-27  Jakub Jelinek  <jakub@redhat.com>

        * testsuite/libstdc++-prettyprinters/whatis.cc: Include <random>.

2016-01-27  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69295
        * testsuite/ext/special_functions/hyperg/check_value.cc: Use
        -ffp-contract=off, and -ffloat-store to disable excess precision.
        * testsuite/special_functions/02_assoc_legendre/check_value.cc: Use
        -ffp-contract=off.

2016-01-26  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69478
        * include/bits/stl_algobase.h (__copy_move<_IsMove, true,
        random_access_iterator_tag>): Check is_move_assignable when moving.
        (__copy_move_backwards<_IsMove, true, random_access_iterator_tag>):
        Likewise.
        * testsuite/25_algorithms/copy/move_iterators/69478.cc: New.
        * testsuite/25_algorithms/copy_backward/move_iterators/69478.cc: New.
        * testsuite/25_algorithms/move/69478.cc: New.
        * testsuite/25_algorithms/move_backward/69478.cc: new.

2016-01-26  Andris Pavenis  <andris.pavenis@iki.fi>

        * include/c_compatibility/stdlib.h: Include wide character related
        definitions only when they are available in cstdlib.

2016-01-25  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69464
        * include/Makefile.am: Add new header.
        * include/Makefile.in: Regenerate.
        * include/bits/random.h (uniform_int_distribution): Move to
        bits/uniform_int_dist.h.
        * include/bits/random.tcc (uniform_int_distribution::operator(),
        uniform_int_distribution::__generate_impl): Likewise.
        * include/bits/uniform_int_dist.h: New header.
        * include/bits/stl_algo.h [__cplusplus >= 201103L]: Include
        <bits/uniform_int_dist.h> instead of <random>.
        * testsuite/20_util/specialized_algorithms/uninitialized_copy/
        move_iterators/1.cc: Include correct header for uninitialized_copy.
        * testsuite/20_util/specialized_algorithms/uninitialized_copy_n/
        move_iterators/1.cc: Likewise.
        * testsuite/25_algorithms/nth_element/58800.cc: Include correct
        header for vector.
        * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lines.

2016-01-23  John David Anglin  <danglin@gcc.gnu.org>

        PR libstdc++/69446
        * config/os/hpux/os_defines.h (_GLIBCXX_USE_WEAK_REF): Define.

2016-01-22  Edward Smith-Rowland  <3dw4rd@verizon.net>

        TR29124 C++ Special Math - <math.h> pulls funcs into global namespace.
        * include/c_compatibility/math.h: Import the TR29124 functions
        into the global namespace.
        * testsuite/special_functions/01_assoc_laguerre/compile_2.cc: Remove
        xfail and make compile-only.
        * testsuite/special_functions/02_assoc_legendre/compile_2.cc: Ditto.
        * testsuite/special_functions/03_beta/compile_2.cc: Ditto.
        * testsuite/special_functions/04_comp_ellint_1/compile_2.cc: Ditto.
        * testsuite/special_functions/05_comp_ellint_2/compile_2.cc: Ditto.
        * testsuite/special_functions/06_comp_ellint_3/compile_2.cc: Ditto.
        * testsuite/special_functions/07_cyl_bessel_i/compile_2.cc: Ditto.
        * testsuite/special_functions/08_cyl_bessel_j/compile_2.cc: Ditto.
        * testsuite/special_functions/09_cyl_bessel_k/compile_2.cc: Ditto.
        * testsuite/special_functions/10_cyl_neumann/compile_2.cc: Ditto.
        * testsuite/special_functions/11_ellint_1/compile_2.cc: Ditto.
        * testsuite/special_functions/12_ellint_2/compile_2.cc: Ditto.
        * testsuite/special_functions/13_ellint_3/compile_2.cc: Ditto.
        * testsuite/special_functions/14_expint/compile_2.cc: Ditto.
        * testsuite/special_functions/15_hermite/compile_2.cc: Ditto.
        * testsuite/special_functions/16_laguerre/compile_2.cc: Ditto.
        * testsuite/special_functions/17_legendre/compile_2.cc: Ditto.
        * testsuite/special_functions/18_riemann_zeta/compile_2.cc: Ditto.
        * testsuite/special_functions/19_sph_bessel/compile_2.cc: Ditto.
        * testsuite/special_functions/20_sph_legendre/compile_2.cc: Ditto.
        * testsuite/special_functions/21_sph_neumann/compile_2.cc: Ditto.

2016-01-22  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69116
        * include/bits/valarray_before.h (__fun, __fun_with_valarray): Only
        define result_type for types which can be safely used with valarrays.
        * testsuite/26_numerics/valarray/69116.cc: New.

        PR libstdc++/69413
        * config/os/gnu-linux/os_defines.h: Define
        _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC.
        * include/c_global/cmath (isinf, isnan): Check it.
        * doc/xml/manual/internals.xml: Document it.
        * doc/html/*: Regenerate.

2016-01-21  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69406
        * include/bits/cpp_type_traits.h: Ensure C++ language linkage.
        * include/ext/type_traits.h: Likewise.
        * testsuite/17_intro/headers/c++2011/linkage.cc: Check autoconf macros
        for presence of C headers.
        * testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Adjust
        dg-error line number.
        * testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Likewise.
        * testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Likewise.
        * testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Likewise.

2016-01-20  Torvald Riegel  <triegel@redhat.com>

        PR libstdc++/69310
        * config/os/bsd/darwin/os_defines.h (_GLIBCXX_USE_WEAK_REF): Define.

2016-01-20  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/60401
        * include/c_compatibility/math.h (acosh, asinh, atanh, acbrt,
        copysign, erf, erfc, exp2, expm1, fdim, fma, fmax, fmin, hypot, ilogb,
        lgamma, llrint, llround, log1p, log2, logb, lrint, lround, nearbyint,
        nextafter, nexttoward, remainder, remquo, rint, round, scalbln, scalbn,
        tgamma, trunc) [__cplusplus >= 201103L && _GLIBCXX_USE_C99_MATH_TR1]:
        Add using declarations.
        * testsuite/26_numerics/headers/cmath/60401.cc: New.

        PR libstdc++/69386
        * include/c_global/ccomplex: Ensure C++ language linkage.
        * include/c_global/cmath: Likewise.
        * include/c_global/cstdlib: Likewise.
        * include/c_global/ctgmath: Likewise.
        * testsuite/17_intro/headers/c++2011/linkage.cc: New.

2016-01-19  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/14608
        PR libstdc++/60401
        * include/Makefile.am: Use c_compatibility math.h and stdlib.h for
        --enable-cheaders=c_global configs.
        * include/Makefile.in: Regenerate.
        * include/c_compatibility/math.h: Remove obsolete _GLIBCXX_NAMESPACE_C
        test and allow inclusion from C files.
        * include/c_compatibility/stdlib.h: Likewise. Support freestanding.
        (at_quick_exit, quick_exit): Add using directives.
        * include/c_global/cmath: Use #include_next for math.h.
        * include/c_global/cstdlib: Use #include_next for stdlib.h.
        * testsuite/26_numerics/headers/cmath/14608.cc: New.
        * testsuite/26_numerics/headers/cmath/c99_classification_macros_c.cc:
        Remove xfail for most targets.
        * testsuite/26_numerics/headers/cstdlib/60401.cc: New.

2016-01-18  Torvald Riegel  <triegel@redhat.com>

        * include/bits/c++config (_GLIBCXX_USE_WEAK_REF): New.
        (_GLIBCXX_TXN_SAFE, _GLIBCXX_TXN_SAFE_DYN): Use _GLIBCXX_USE_WEAK_REF
        and move after its definition.
        * config/os/aix/os_defines.h (_GLIBCXX_USE_WEAK_REF): Override.
        * src/c++11/cow-stdexcept.cc: Use _GLIBCXX_USE_WEAK_REF instead of
        __GXX_WEAK__, and only provide transactional clones if
        _GLIBCXX_USE_WEAK_REF is true.  Don't provide stubs of libitm
        functions.

2016-01-18  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/60637
        * testsuite/26_numerics/headers/cmath/60637.cc: Add test.

        PR libstdc++/69243
        * include/std/functional (_Function_base::_M_not_empty_function):
        Change overloads for pointers to take arguments by value.
        * testsuite/20_util/function/cons/57465.cc: Add tests for
        pointer-to-member cases.

        PR libstdc++/69340
        * src/c++11/cow-stdexcept.cc (_txnal_cow_string_C1_for_exceptions):
        Use macros for exception handling and fix unused parameter warning.

2016-01-17  John David Anglin  <danglin@gcc.gnu.org>

        PR libstdc++/68734
        * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.

2016-01-17  Torvald Riegel  <triegel@redhat.com>

        * src/c++11/cow-stdexcept.cc (txnal_read_ptr): Fix static_assert.

2016-01-16  H.J. Lu  <hongjiu.lu@intel.com>

        * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Add
        __int128 symbols.

2016-01-15  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69293
        * include/bits/uses_allocator.h (__uses_alloc<true, ...>): Add
        static assertion that type is constructible from the arguments.
        * testsuite/20_util/scoped_allocator/69293_neg.cc: New.
        * testsuite/20_util/uses_allocator/69293_neg.cc: New.
        * testsuite/20_util/uses_allocator/cons_neg.cc: Adjust dg-error.

        PR libstdc++/69294
        * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Check for obsolete isinf
        and isnan on AIX. Quote variables.
        * configure: Regenerate.

2016-01-15  Torvald Riegel  <triegel@redhat.com>

        * include/bits/basic_string.h (basic_string): Declare friends.
        * include/bits/c++config (_GLIBCXX_TXN_SAFE,
        _GLIBCXX_TXN_SAFE_DYN, _GLIBCXX_USE_ALLOCATOR_NEW): New.
        * include/std/stdexcept (logic_error, domain_error, invalid_argument,
        length_error, out_of_range, runtime_error, range_error,
        underflow_error, overflow_error): Declare members as transaction-safe.
        (logic_error, runtime_error): Declare friend functions.
        * libsupc++/exception (exception, bad_exception): Declare members as
        transaction-safe.
        * src/c++11/cow-stdexcept.cc: Define transactional clones for the
        transaction-safe members of exceptions and helper functions.
        * libsupc++/eh_exception.cc: Adjust and define transactional clones.
        * config/abi/pre/gnu.ver (GLIBCXX_3.4.22) Add transactional clones.
        (CXXABI_1.3.10): New.
        * acinclude.m4 (GLIBCXX_CHECK_SIZE_T_MANGLING): New.
        (GLIBCXX_ENABLE_ALLOCATOR): Set ENABLE_ALLOCATOR_NEW.
        * configure.ac: Call GLIBCXX_CHECK_SIZE_T_MANGLING.
        * include/Makefile.am: Write ENABLE_ALLOCATOR_NEW to c++config.h.
        * include/Makefile.in: Regenerate.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * testsuite/util/testsuite_abi.cc (check_version): Add CXXABI_1.3.10.

2016-01-15  Steve Ellcey  <sellcey@imgtec.com>

        * include/ext/random.tcc: Use __builtin_isfinite instead of
        std::isfinite.

2016-01-15  Jonathan Wakely  <jwakely@redhat.com>

        * include/bits/std_mutex.h: Fix Doxygen @file name.

2016-01-14  Edward Smith-Rowland  <3dw4rd@verizon.net>
            Jonathan Wakely  <jwakely@redhat.com>
            Florian Goth <CaptainSifff@gmx.de>

        Implement TR29124 C++ special Math Functions.
        * include/Makefile.am: Add new headers.
        * include/Makefile.in: Regenerate.
        * include/bits/specfun.h: New.
        * include/c_global/cmath: Adjust for both tr1 and tr29124 maths.
        * include/tr1/bessel_function.tcc: Ditto.
        * include/tr1/beta_function.tcc: Ditto.
        * include/tr1/cmath: Ditto.
        * include/tr1/ell_integral.tcc: Ditto.
        * include/tr1/exp_integral.tcc: Ditto.
        * include/tr1/gamma.tcc: Ditto.
        * include/tr1/hypergeometric.tcc: Ditto.
        * include/tr1/legendre_function.tcc: Ditto.
        * include/tr1/modified_bessel_func.tcc: Ditto.
        * include/tr1/poly_hermite.tcc: Ditto.
        * include/tr1/poly_laguerre.tcc: Ditto.
        * include/tr1/riemann_zeta.tcc: Ditto.
        * include/tr1/special_function_util.h: Ditto.
        * testsuite/ext/special_functions/conf_hyperg: New.
        * testsuite/ext/special_functions/conf_hyperg/check_nan.cc: New.
        * testsuite/ext/special_functions/conf_hyperg/check_value.cc: New.
        * testsuite/ext/special_functions/conf_hyperg/compile.cc: New.
        * testsuite/ext/special_functions/hyperg: New.
        * testsuite/ext/special_functions/hyperg/check_nan.cc: New.
        * testsuite/ext/special_functions/hyperg/check_value.cc: New.
        * testsuite/ext/special_functions/hyperg/compile.cc: New.
        * testsuite/libstdc++-dg/conformance.exp: Add special_functions directory.
        * testsuite/special_functions/01_assoc_laguerre/check_nan.cc: New.
        * testsuite/special_functions/01_assoc_laguerre/check_value.cc: New.
        * testsuite/special_functions/01_assoc_laguerre/compile.cc: New.
        * testsuite/special_functions/01_assoc_laguerre/compile_2.cc: New.
        * testsuite/special_functions/02_assoc_legendre/check_nan.cc: New.
        * testsuite/special_functions/02_assoc_legendre/check_value.cc: New.
        * testsuite/special_functions/02_assoc_legendre/compile.cc: New.
        * testsuite/special_functions/02_assoc_legendre/compile_2.cc: New.
        * testsuite/special_functions/03_beta/check_nan.cc: New.
        * testsuite/special_functions/03_beta/check_value.cc: New.
        * testsuite/special_functions/03_beta/compile.cc: New.
        * testsuite/special_functions/03_beta/compile_2.cc: New.
        * testsuite/special_functions/04_comp_ellint_1/check_nan.cc: New.
        * testsuite/special_functions/04_comp_ellint_1/check_value.cc: New.
        * testsuite/special_functions/04_comp_ellint_1/compile.cc: New.
        * testsuite/special_functions/04_comp_ellint_1/compile_2.cc: New.
        * testsuite/special_functions/05_comp_ellint_2/check_nan.cc: New.
        * testsuite/special_functions/05_comp_ellint_2/check_value.cc: New.
        * testsuite/special_functions/05_comp_ellint_2/compile.cc: New.
        * testsuite/special_functions/05_comp_ellint_2/compile_2.cc: New.
        * testsuite/special_functions/06_comp_ellint_3/check_nan.cc: New.
        * testsuite/special_functions/06_comp_ellint_3/check_value.cc: New.
        * testsuite/special_functions/06_comp_ellint_3/compile.cc: New.
        * testsuite/special_functions/06_comp_ellint_3/compile_2.cc: New.
        * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc: New.
        * testsuite/special_functions/07_cyl_bessel_i/check_value.cc: New.
        * testsuite/special_functions/07_cyl_bessel_i/compile.cc: New.
        * testsuite/special_functions/07_cyl_bessel_i/compile_2.cc: New.
        * testsuite/special_functions/07_cyl_bessel_i/pr56216.cc: New.
        * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc: New.
        * testsuite/special_functions/08_cyl_bessel_j/check_value.cc: New.
        * testsuite/special_functions/08_cyl_bessel_j/compile.cc: New.
        * testsuite/special_functions/08_cyl_bessel_j/compile_2.cc: New.
        * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc: New.
        * testsuite/special_functions/09_cyl_bessel_k/check_value.cc: New.
        * testsuite/special_functions/09_cyl_bessel_k/compile.cc: New.
        * testsuite/special_functions/09_cyl_bessel_k/compile_2.cc: New.
        * testsuite/special_functions/10_cyl_neumann/check_nan.cc: New.
        * testsuite/special_functions/10_cyl_neumann/check_value.cc: New.
        * testsuite/special_functions/10_cyl_neumann/compile.cc: New.
        * testsuite/special_functions/10_cyl_neumann/compile_2.cc: New.
        * testsuite/special_functions/11_ellint_1/check_nan.cc: New.
        * testsuite/special_functions/11_ellint_1/check_value.cc: New.
        * testsuite/special_functions/11_ellint_1/compile.cc: New.
        * testsuite/special_functions/11_ellint_1/compile_2.cc: New.
        * testsuite/special_functions/12_ellint_2/check_nan.cc: New.
        * testsuite/special_functions/12_ellint_2/check_value.cc: New.
        * testsuite/special_functions/12_ellint_2/compile.cc: New.
        * testsuite/special_functions/12_ellint_2/compile_2.cc: New.
        * testsuite/special_functions/13_ellint_3/check_nan.cc: New.
        * testsuite/special_functions/13_ellint_3/check_value.cc: New.
        * testsuite/special_functions/13_ellint_3/compile.cc: New.
        * testsuite/special_functions/13_ellint_3/compile_2.cc: New.
        * testsuite/special_functions/14_expint/check_nan.cc: New.
        * testsuite/special_functions/14_expint/check_value.cc: New.
        * testsuite/special_functions/14_expint/compile.cc: New.
        * testsuite/special_functions/14_expint/compile_2.cc: New.
        * testsuite/special_functions/15_hermite/check_nan.cc: New.
        * testsuite/special_functions/15_hermite/check_value.cc: New.
        * testsuite/special_functions/15_hermite/compile.cc: New.
        * testsuite/special_functions/15_hermite/compile_2.cc: New.
        * testsuite/special_functions/16_laguerre/check_nan.cc: New.
        * testsuite/special_functions/16_laguerre/check_value.cc: New.
        * testsuite/special_functions/16_laguerre/compile.cc: New.
        * testsuite/special_functions/16_laguerre/compile_2.cc: New.
        * testsuite/special_functions/17_legendre/check_nan.cc: New.
        * testsuite/special_functions/17_legendre/check_value.cc: New.
        * testsuite/special_functions/17_legendre/compile.cc: New.
        * testsuite/special_functions/17_legendre/compile_2.cc: New.
        * testsuite/special_functions/18_riemann_zeta/check_nan.cc: New.
        * testsuite/special_functions/18_riemann_zeta/check_value.cc: New.
        * testsuite/special_functions/18_riemann_zeta/compile.cc: New.
        * testsuite/special_functions/18_riemann_zeta/compile_2.cc: New.
        * testsuite/special_functions/19_sph_bessel/check_nan.cc: New.
        * testsuite/special_functions/19_sph_bessel/check_value.cc: New.
        * testsuite/special_functions/19_sph_bessel/compile.cc: New.
        * testsuite/special_functions/19_sph_bessel/compile_2.cc: New.
        * testsuite/special_functions/20_sph_legendre/check_nan.cc: New.
        * testsuite/special_functions/20_sph_legendre/check_value.cc: New.
        * testsuite/special_functions/20_sph_legendre/compile.cc: New.
        * testsuite/special_functions/20_sph_legendre/compile_2.cc: New.
        * testsuite/special_functions/21_sph_neumann/check_nan.cc: New.
        * testsuite/special_functions/21_sph_neumann/check_value.cc: New.
        * testsuite/special_functions/21_sph_neumann/compile.cc: New.
        * testsuite/special_functions/21_sph_neumann/compile_2.cc: New.
        * testsuite/util/specfun_testcase.h: New.
        * testsuite/tr1/5_numerical_facilities/special_functions/08_cyl_bessel_i/check_value.cc: More testcases.
        * testsuite/tr1/5_numerical_facilities/special_functions/09_cyl_bessel_j/check_value.cc: Ditto.
        * testsuite/tr1/5_numerical_facilities/special_functions/10_cyl_bessel_k/check_value.cc: Ditto.
        * testsuite/tr1/5_numerical_facilities/special_functions/11_cyl_neumann/check_value.cc: Ditto.
        * testsuite/tr1/5_numerical_facilities/special_functions/21_sph_bessel/check_value.cc: Ditto.
        * testsuite/tr1/5_numerical_facilities/special_functions/23_sph_neumann/check_value.cc: Ditto.
        * testsuite/tr1/5_numerical_facilities/special_functions/16_hermite/check_value.cc: New.

2016-01-13  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/48891
        * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Check for obsolete isinf
        and isnan functions.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * include/c_global/cmath (isinf(double), isnan(double))
        [_GLIBCXX_HAVE_OBSOLETE_ISINF_ISNAN]: Import via using-directive.
        * testsuite/26_numerics/headers/cmath/48891.cc: New.

2016-01-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR libstdc++/66006
        * configure.host (abi_baseline_pair): Use separate baseline for
        Solaris 11+ and Solaris 10 with gld.
        * config/abi/post/solaris2.11/amd64/baseline_symbols.txt: New file.
        * config/abi/post/solaris2.11/baseline_symbols.txt: New file.
        * config/abi/post/solaris2.11/sparcv9/baseline_symbols.txt: New file.

2016-01-12  Daniel Kruegler  <daniel.kruegler@gmail.com>

        PR libstdc++/68877
        * include/std/type_traits: Following N4511, reimplement __is_swappable
        and __is_nothrow_swappable. Move __is_swappable to namespace std,
        adjust callers. Use __is_nothrow_swappable in swap.
        * include/bits/move.h: Use __is_nothrow_swappable in swap.
        * testsuite/20_util/is_nothrow_swappable/value.cc: Extend; remove
        __is_swappable related tests.
        * testsuite/20_util/is_swappable/value.cc: New.
        * testsuite/20_util/is_swappable/requirements/
        explicit_instantiation.cc: New.
        * testsuite/20_util/is_swappable/requirements/typedefs.cc: New.
        * testsuite/25_algorithms/swap/68877.cc: New.

2016-01-12  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/20_util/function/68995.cc: Test reference_wrapper cases.

        PR libstdc++/69005
        PR libstdc++/69222
        * include/std/functional (function::_Invoke): Remove, use result_of.
        (function::_Callable): Replace alias template with class template
        and use partial specialization instead of _NotSelf alias template.
        (function(_Functor)): Add "not self" constraint so that _Callable is
        not used while type is incomplete.
        * testsuite/20_util/function/69222.cc: New.

2016-01-11  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/60976
        * include/bits/alloc_traits.h (allocator_traits<allocator<_Tp>>):
        Define partial specialization.
        * testsuite/20_util/shared_ptr/cons/58659.cc: Add construct and
        destroy members to std::allocator explicit specialization.

2016-01-08  Jonathan Wakely  <jwakely@redhat.com>

        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++.cc: Rename to ...
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++98.cc: Here and add -std=gnu++98.
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++0x.cc: Rename to ...
        * testsuite/26_numerics/headers/cmath/
        c99_classification_macros_c++11.cc: Here.

        PR libstdc++/69190
        * include/bits/uses_allocator.h: Add missing include.

2016-01-07  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69105
        PR libstdc++/69106
        PR libstdc++/69114
        * include/bits/stl_iterator.h (back_insert_iterator,
        front_insert_iterator, insert_iterator): Use __addressof (LWG 2324).
        * include/bits/uses_allocator.h (__use_alloc): Use __addressof.
        * include/std/future (__future::base::_State_baseV2::__setter):
        Likewise.
        * include/std/scoped_allocator (__outermost): Likewise.
        * testsuite/20_util/scoped_allocator/69114.cc: New.
        * testsuite/20_util/uses_allocator/69114.cc: New.
        * testsuite/30_threads/promise/69106.cc: New.

2016-01-06  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/69092
        * include/bits/basic_string.h (basic_string::_S_copy_chars<_Iterator>):
        Remove _GLIBCXX_NOEXCEPT.
        testsuite/21_strings/basic_string/cons/char/69092.cc: New.

        * include/Makefile.am: Adjust.
        * include/Makefile.in: Regenerate.
        * include/bits/mutex.h: Rename to bits/std_mutex.h.
        * include/std/condition_variable: Adjust include.
        * include/std/mutex: Likewise.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.
\f
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