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5771 Commits

Author SHA1 Message Date
Jonathan Wakely
4bb4acee68 Optimise std::list::assign(initializer_list<T>) slightly 
* include/bits/stl_list.h (assign(initializer_list<value_type>)): Call
	_M_assign_dispatch directly with correct tag.

From-SVN: r240984
 2016-10-11 11:33:41 +01:00
Jonathan Wakely
7571121f10 Remove redundant const qualifliers from string_view 
* include/experimental/string_view (basic_string_view::_S_compare):
	Remove redundant const from return type.
	* include/std/string_view (basic_string_view:_S_compare): Likewise.

From-SVN: r240981
 2016-10-11 11:33:24 +01:00
Jonathan Wakely
2c15eace95 More noexcept for standard mutex types and locks 
* include/bits/std_mutex.h (mutex::native_handle)
	(lock_guard(mutex_type&, adopt_lock_t)
	(unique_lock(mutex_type&, adopt_lock_t): Add noexcept.
	* include/std/mutex (recursive_mutex, timed_mutex)
	(recursive_timed_mutex): Likewise.

From-SVN: r240980
 2016-10-11 11:33:16 +01:00
Ville Voutilainen
1725d05d19 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.

From-SVN: r240951
 2016-10-11 01:08:58 +03:00
Jonathan Wakely
40962ac03a Minor simplification to std::_Bind_result helpers 
* 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.

From-SVN: r240940
 2016-10-10 17:15:52 +01:00
Jonathan Wakely
9e023e3321 Implement constexpr std::addressof for C++17 
* 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.

From-SVN: r240929
 2016-10-10 16:34:28 +01:00
Jonathan Wakely
46942c8101 Define std::allocator<T>::is_always_equal 
* 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.

From-SVN: r240920
 2016-10-10 13:17:45 +01:00
Jonathan Wakely
f2e79496bf LWG 2733, LWG 2759 reject bool in gcd and lcm 
* 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.

From-SVN: r240919
 2016-10-10 13:17:34 +01:00
Jonathan Wakely
208b8b69b6 Add noexcept to enable_shared_from_this::weak_from_this 
* 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.

From-SVN: r240917
 2016-10-10 12:44:05 +01:00
Jonathan Wakely
873c7d5ade Implement std::has_unique_object_representations 
* 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.

From-SVN: r240868
 2016-10-07 19:02:43 +01:00
Jonathan Wakely
937ec71aba Make std::scoped_allocator_adaptor's OUTERMOST recursive 
* 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.
	* testsuite/20_util/scoped_allocator/outermost.cc: New test.

From-SVN: r240844
 2016-10-06 22:22:35 +01:00
Jonathan Wakely
92805612f4 PR 70101 fix allocator-extended ctors for std::priority_queue 
PR libstdc++/70101
	* include/bits/stl_queue.h (priority_queue): Fix allocator-extended
	constructors.
	* testsuite/23_containers/priority_queue/allocator.cc: New test.

From-SVN: r240781
 2016-10-05 13:01:57 +01:00
Jonathan Wakely
a2a64b499a 77864 Fix noexcept conditions for map/set default constructors 
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.

From-SVN: r240780
 2016-10-05 13:01:51 +01:00
Jonathan Wakely
d72d690a92 Remove invalid alias declaration from _Node_handle 
* include/bits/node_handle.h (_Node_handle): Remove invalid and unused
	alias declaration.

From-SVN: r240779
 2016-10-05 13:01:44 +01:00
Jonathan Wakely
78ec9c15be PR 70564 disambiguate constructors for not_fn call wrapper 
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.

From-SVN: r240778
 2016-10-05 13:01:36 +01:00
Jonathan Wakely
606dda21c8 Define std::gcd and std::lcm for C++17 
* 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.

From-SVN: r240723
 2016-10-03 18:01:10 +01:00
Jonathan Wakely
e347987da8 Fix libstdc++ versioned namespace build 
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.

From-SVN: r240714
 2016-10-03 15:35:28 +01:00
Jonathan Wakely
6a0d23af49 Ensure "C++" language linkage for std::abs overloads 
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>.

From-SVN: r240710
 2016-10-03 12:50:46 +01:00
Ville Voutilainen
3fe2ddae4b re PR libstdc++/77802 (Boost Fiber doesn't compile) 
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.

From-SVN: r240709
 2016-10-03 14:06:53 +03:00
Jonathan Wakely
36105dbdab libstdc++/77795 Only declare ::gets for C++98 and C++11 
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.

From-SVN: r240672
 2016-09-30 19:28:53 +01:00
Jonathan Wakely
37b204de60 Implement LWG 2192 and LWG 2294 for std::abs 
* 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.

From-SVN: r240660
 2016-09-30 17:07:43 +01:00
Jonathan Wakely
9e28a77462 Remove use of std::abs in experimental::{gcd,lcm} 
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.

From-SVN: r240656
 2016-09-30 14:43:37 +01:00
Ville Voutilainen
a181f67231 Make optional::reset noexcept, make optional::value work in constant expressions. 
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.

From-SVN: r240623
 2016-09-29 18:20:28 +03:00
Jonathan Wakely
998e01a6d5 Define C++17 std::hypot without _GLIBCXX_USE_C99_MATH_TR1 
* include/c_global/cmath (hypot, __hypot3): Move C++17 overloads
	outside _GLIBCXX_USE_C99_MATH_TR1 condition.

From-SVN: r240620
 2016-09-29 14:25:48 +01:00
Alan Modra
6d49b790fd Disable .gnu.attributes tags in compatibility-ldbl.o 
compatibility-ldbl.o is compiled with -mlong-double-64.  When
long double .gnu.attributes tags are checked by the linker, it
complains about the mismatch between this file and others in
libstdc++.

	* 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.

From-SVN: r240602
 2016-09-29 07:33:17 +09:30
Jonathan Wakely
b236debd3b * include/std/chrono (system_clock): Fix typo in comment. 
From-SVN: r240589
 2016-09-28 19:04:23 +01:00
Jonathan Wakely
fd5effb17e Check for overflow in filesystem::last_write_time 
* 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.

From-SVN: r240587
 2016-09-28 19:02:25 +01:00
Jonathan Wakely
1b4be62ad3 libstdc++/77686 use may_alias for std::function storage 
PR libstdc++/77686
	* include/std/functional (_Any_data): Add may_alias attribute.

From-SVN: r240567
 2016-09-28 11:57:46 +01:00
Jonathan Wakely
4940de303c Define feature macro and update C++17 library status 
* 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.

From-SVN: r240550
 2016-09-27 16:39:51 +01:00
Jonathan Wakely
b658669de0 Define 3-argument overloads of std::hypot for C++17 (P0030R1) 
* 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.

From-SVN: r240547
 2016-09-27 16:14:24 +01:00
Ville Voutilainen
71ade764ad re PR libstdc++/77727 (Unwrapping std::optional constructor is not working for non-transferable object) 
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.

From-SVN: r240511
 2016-09-26 23:51:42 +03:00
François Dumont
f2fe9e0a69 2016-09-26 François Dumont <fdumont@gcc.gnu.org> 
* include/debug/safe_base.h
	(_Safe_iterator_base::_M_detach_single): Make public.

From-SVN: r240510
 2016-09-26 20:32:39 +00:00
Jonathan Wakely
1a08d2da0e Remove redefinition of __cpp_lib_array_constexpr 
* include/bits/range_access.h (__cpp_lib_array_constexpr): Do not
	redefine macro defined in <bits/stl_iterator.h>.

From-SVN: r240488
 2016-09-26 11:17:53 +01:00
Jonathan Wakely
976160b962 Add assertions to extract(const_iterator) functions 
* 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.

From-SVN: r240487
 2016-09-26 11:17:48 +01:00
François Dumont
5d04532430 bitset (bitset::reference::reference(const _Base_ref&, bitset*)): Remove __unused__ attribute. 
2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

	* 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.

From-SVN: r240478
 2016-09-25 20:15:21 +00:00
François Dumont
edc69abbe1 algo.h: Generalize usage of std::__iterator_category. 
2016-09-25  François Dumont  <fdumont@gcc.gnu.org>

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

From-SVN: r240473
 2016-09-25 15:23:45 +00:00
Jonathan Wakely
1319041924 Avoid reallocation for basic_string::clear() 
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.

From-SVN: r240447
 2016-09-23 18:25:34 +01:00
Jonathan Wakely
a922c5ff6f Optimize truncating a basic_string 
* 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.

From-SVN: r240446
 2016-09-23 18:25:23 +01:00
Jonathan Wakely
2dbe56bdfb 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.

From-SVN: r240363
 2016-09-22 14:58:49 +01:00
Jonathan Wakely
64626fcaaa Always qualify std::forward in <variant> 
* 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.

From-SVN: r240344
 2016-09-22 10:56:54 +01:00
Tim Shen
c42bc5d73b variant (variant::operator=): Fix assignment on references. 
* libstdc++-v3/include/std/variant (variant::operator=): Fix assignment
	on references.
	* libstdc++-v3/testsuite/20_util/variant/compile.cc: Add test.

From-SVN: r240343
 2016-09-22 08:45:55 +00:00
Tim Shen
41501d1ae7 re PR libstdc++/77641 (std::variant copy-initialization fails for type with non-trivial constexpr ctor) 
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.

From-SVN: r240340
 2016-09-22 03:15:58 +00:00
Ville Voutilainen
b641f833ba re PR libstdc++/77288 (Std::experimental::optional::operator= implementation is broken in gcc 6.1) 
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.

From-SVN: r240324
 2016-09-21 20:37:17 +03:00
Ville Voutilainen
5578678524 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.

From-SVN: r240323
 2016-09-21 20:25:16 +03:00
Ville Voutilainen
f524d5b34a re PR libstdc++/77537 (pair constructors do not properly SFINAE) 
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.

From-SVN: r240322
 2016-09-21 19:48:35 +03:00
Ville Voutilainen
377f30c00f re PR libstdc++/77619 (uninitialized_meow_construct and friends not exception safe) 
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.

From-SVN: r240264
 2016-09-20 18:15:36 +03:00
Ville Voutilainen
8e14a10cab 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.

From-SVN: r240122
 2016-09-13 22:26:02 +03:00
Ville Voutilainen
5e8037ba97 Implement P0253R1, Fixing a design mistake in the searchers interface in Library Fundamentals. 
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.

From-SVN: r240094
 2016-09-12 18:48:32 +03:00
Ville Voutilainen
f82dfb8d4e 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.

From-SVN: r240093
 2016-09-12 18:48:07 +03:00
Tim Shen
f75d599982 variant: include bits/move.h for std::addressof. 
2016-09-05  Tim Shen  <timshen@google.com>

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

From-SVN: r240001
 2016-09-05 19:52:11 +00:00
Mikhail Strelnikov
eddca7bd73 variant (_Variant_storage::_M_storage()): Use std::addressof instead of operator& to take address. 
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.

From-SVN: r239996
 2016-09-05 19:40:44 +00:00
Jonathan Wakely
7663cae227 Constrain std::shared_ptr assignment and resetting 
* 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.

From-SVN: r239898
 2016-08-31 17:57:20 +01:00
Jonathan Wakely
e46d22a821 Move comparison object in map/set move assignment 
* include/bits/stl_tree.h (_Rb_tree::operator=(_Rb_tree&&)): Move
	comparison object.
	* testsuite/23_containers/set/move_comparison.cc: New test.

From-SVN: r239897
 2016-08-31 17:57:14 +01:00
Ville Voutilainen
7875b41f1d re PR libstdc++/77395 (std::is_constructible is false for type constructible via implicit conversion operator affecting std::tuple) 
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.

From-SVN: r239870
 2016-08-30 21:46:11 +03:00
Tim Shen
4aebb4e4a6 re PR libstdc++/77356 (regex error for a ECMAScript syntax string) 
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.

From-SVN: r239794
 2016-08-27 02:03:23 +00:00
Jonathan Wakely
10491e4c04 libstdc++/51960 move-construction for raw_storage_iterator 
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.

From-SVN: r239781
 2016-08-26 14:11:29 +01:00
Jonathan Wakely
86bbf15b6b Add new std::basic_string constructor (LWG 2583) 
* 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.

From-SVN: r239773
 2016-08-26 11:41:37 +01:00
Aditya Kumar
9a38acdfdc Remove trailing whitespace in C++ headers 
2016-08-24  Aditya Kumar  <hiraditya@msn.com>

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

From-SVN: r239731
 2016-08-24 09:03:01 +01:00
Jonathan Wakely
e90a801017 Add C++17 constexpr to debug and profile mode arrays 
* include/debug/array (array): Add _GLIBCXX17_CONSTEXPR.
	* include/profile/array (array): Likewise.
	(array::swap): Fix exception specification for zero-sized arrays.

From-SVN: r239705
 2016-08-23 16:54:57 +01:00
Jonathan Wakely
5ea387db6c libstdc++/77334 move assign RB trees of non-copyable types 
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.

From-SVN: r239698
 2016-08-23 14:15:12 +01:00
Jonathan Wakely
b405d54fcd Implement resolution of LWG DR 685 precisely 
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.

From-SVN: r239691
 2016-08-23 11:13:26 +01:00
Jonathan Wakely
06db992005 Add constexpr to <iterator> and <array> for C++17 
* 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.

From-SVN: r239690
 2016-08-23 11:13:12 +01:00
Tim Shen
d79d625275 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.

From-SVN: r239673
 2016-08-22 19:50:15 +00:00
Gleb Natapov
27abac2648 libstdc++/68297 avoid throw/catch in make_exception_ptr 
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.

From-SVN: r239664
 2016-08-22 18:29:31 +01:00
Jonathan Wakely
94f54d47ca Add noexcept to std::function swap 
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.

From-SVN: r239662
 2016-08-22 17:47:34 +01:00
Jonathan Wakely
e6ee5bfd68 Define std::not_fn for C++17 
* 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.

From-SVN: r239623
 2016-08-19 16:42:34 +01:00
Jonathan Wakely
387edf83a0 Define std::atomic<T>::is_always_lock_free for C++17 
* 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.

From-SVN: r239622
 2016-08-19 16:42:27 +01:00
Jonathan Wakely
285ee2fb11 Fix ambiguities in C++17 mode 
* 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.

From-SVN: r239621
 2016-08-19 16:42:11 +01:00
Ville Voutilainen
a577f786b6 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.

From-SVN: r239593
 2016-08-18 23:33:57 +03:00
Tim Shen
197c757cb1 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.

From-SVN: r239590
 2016-08-18 20:31:26 +00:00
Jonathan Wakely
657213f736 PR 77264 constrain new std::basic_string overloads 
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.

From-SVN: r239532
 2016-08-17 14:38:52 +01:00
Jonathan Wakely
32917686b0 PR 72847 Prevent double-free in std::vector<bool> 
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.

From-SVN: r239497
 2016-08-16 12:33:16 +01:00
Ville Voutilainen
5c578ae434 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.

From-SVN: r239482
 2016-08-15 18:06:09 +03:00
Ville Voutilainen
24299f6544 Add a feature macro for C++17 make_from_tuple. 
* include/std/tuple (__cpp_lib_make_from_tuple): New.
	* testsuite/20_util/tuple/make_from_tuple/1.cc: Adjust.

From-SVN: r239480
 2016-08-15 15:46:47 +03:00
Ville Voutilainen
ca1ab6be3b 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.

From-SVN: r239372
 2016-08-11 17:51:47 +03:00
Ville Voutilainen
68a51b68bd 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.

From-SVN: r239370
 2016-08-11 17:45:23 +03:00
Jonathan Wakely
6ef835c6c0 Use ::new to avoid finding overloaded operator new 
PR libstdc++/72820
	* include/std/functional (_Function_base::_Base_manager::_M_clone):
	Qualify new operator.
	* testsuite/20_util/function/cons/72820.cc: New test.

From-SVN: r239191
 2016-08-06 11:21:07 +01:00
Jonathan Wakely
3e9f67e6a2 Add std::apply for C++17 
* 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.

From-SVN: r239183
 2016-08-06 01:06:02 +01:00
Jonathan Wakely
5f6acdfb0b Implement C++17 rounding functions for std::chrono (P0092R1) 
* 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.

From-SVN: r239170
 2016-08-05 14:52:59 +01:00
Jonathan Wakely
98e6e66233 Use __invoke in std::function internals 
* 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.

From-SVN: r239166
 2016-08-05 10:00:34 +01:00
Jonathan Wakely
42183d034d Define std::is_callable and std::is_nothrow_callable 
* 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.

From-SVN: r239145
 2016-08-04 19:02:56 +01:00
Jonathan Wakely
9a8e528cf1 Define std::enable_shared_from_this::weak_from_this 
* 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.

From-SVN: r239121
 2016-08-04 13:33:10 +01:00
Jonathan Wakely
7d2035fafe Simplify std::__invoke_impl definitions 
* 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.

From-SVN: r239120
 2016-08-04 12:09:29 +01:00
Jonathan Wakely
c7fdbdcdbd Define feature-test macro for std::enable_shared_from_this 
* 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.

From-SVN: r239094
 2016-08-03 20:10:06 +01:00
Jonathan Wakely
f21f4463ad Define std::shared_ptr::weak_type 
* 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.

From-SVN: r239093
 2016-08-03 20:09:57 +01:00
Jonathan Wakely
32eaac9c91 Define std::as_const 
* 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.

From-SVN: r239090
 2016-08-03 19:11:23 +01:00
Jonathan Wakely
b7dabce5f3 Define std::owner_less<void> specialization (P0074R0) 
* 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.

From-SVN: r239089
 2016-08-03 19:11:18 +01:00
Jonathan Wakely
068c8ac17c Define C++17 feature-test macros 
* 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.

From-SVN: r239088
 2016-08-03 19:11:10 +01:00
Jonathan Wakely
0bd9bdb4db Define __cpp_lib_generic_associative_lookup feature-test macro 
* 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.

From-SVN: r239084
 2016-08-03 17:42:31 +01:00
Jonathan Wakely
f8571e5150 Enable Mathematical Special Functions for C++17 
* 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.

From-SVN: r239081
 2016-08-03 16:54:13 +01:00
Jonathan Wakely
27631a2542 Remove deprecated has_trivial_xxx traits 
* 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.

From-SVN: r239079
 2016-08-03 16:18:30 +01:00
Jonathan Wakely
92d58deefa Add non-const std::basic_string::data() for C++17 
* 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.

From-SVN: r238963
 2016-08-01 21:12:58 +01:00
Jonathan Wakely
0f86525ae0 Disable std::string and std::wstring extern templates for C++17 
* include/bits/basic_string.tcc: Disable explicit instantiation
	declarations for C++17.

From-SVN: r238959
 2016-08-01 17:06:03 +01:00
Jonathan Wakely
3c040fa4a2 libstdc++/72745 add static assertion for invalid tuple access 
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.

From-SVN: r238924
 2016-07-31 18:08:52 +01:00
Ville Voutilainen
8c9142276b 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.

From-SVN: r238921
 2016-07-31 17:52:53 +03:00
Ville Voutilainen
137422c80c 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.

From-SVN: r238892
 2016-07-29 22:01:39 +03:00
Ville Voutilainen
ca8f2cb137 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.

From-SVN: r238823
 2016-07-28 18:15:26 +03:00
Georeth Chow
a837417c79 Fix missing qualification in <ext/rope> 
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.

From-SVN: r238711
 2016-07-25 13:56:12 +01:00
Jonathan Wakely
8cab3d18f0 Move allocator in std::string and RB tree move constructors 
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.

From-SVN: r238647
 2016-07-22 16:03:11 +01:00
Jonathan Wakely
8b649cd3ba Fix naming, qualification and broken test for propagate_const 
* 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.

From-SVN: r238611
 2016-07-21 20:39:03 +01:00
Jonathan Wakely
e87b7d52c3 LWG 2441 Provide exact-width atomic typedefs 
* 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.

From-SVN: r238534
 2016-07-20 19:21:59 +01:00
Jonathan Wakely
07c772ed4e LWG 2328 Rvalue stream extraction should use perfect forwarding 
* 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.

From-SVN: r238533
 2016-07-20 19:21:53 +01:00
Ville Voutilainen
40f3e91334 Clean up optional's comments. 
From-SVN: r238436
 2016-07-18 17:45:56 +03:00
Jonathan Wakely
4f5f9962c8 Replace references to C++0x with C++11 in comments 
* 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.

From-SVN: r238402
 2016-07-15 21:23:08 +01:00
Jonathan Wakely
d1129d45b0 Remove redundant std::move in std::for_each 
* include/bits/stl_algo.h (for_each): Remove redundant _GLIBCXX_MOVE
	and adjust comment.

From-SVN: r238399
 2016-07-15 20:51:33 +01:00
Edward Smith-Rowland
4db1cb44be Implement C++17 P0025 clamp. 
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.

From-SVN: r238383
 2016-07-15 17:16:32 +00:00
Ville Voutilainen
1ec0f76305 Fix the constraints for any's assignment operator template to properly 
reject assignment from a non-copyable lvalue.

From-SVN: r238365
 2016-07-15 10:44:22 +03:00
Jonathan Wakely
ea5ec6b7e0 Include header for std::__parallel::search 
* include/experimental/functional: Include <parallel/algorithm> in
	Parallel Mode.

From-SVN: r238342
 2016-07-14 16:43:17 +01:00
Jonathan Wakely
0a2bf18874 Improve doxygen comments for allocators in containers 
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.

From-SVN: r238332
 2016-07-14 11:02:10 +01:00
Ville Voutilainen
25a69162c9 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.

From-SVN: r238329
 2016-07-14 12:10:05 +03:00
Jonathan Wakely
e383deac8b libstdc++/71856 Define _GLIBCXX_PARALLEL_ASSERTIONS 
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.

From-SVN: r238307
 2016-07-13 18:22:57 +01:00
Jonathan Wakely
17f8dc9367 Make basic_string::replace forward to different overload 
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(replace(__const_iterator, __const_iterator, initializer_list<C>)):
	Forward to different overload.

From-SVN: r238306
 2016-07-13 18:22:51 +01:00
Jonathan Wakely
260d92cd0d Make __allocated_ptr::_S_raw_ptr static 
* include/bits/allocated_ptr.h (__allocated_ptr::_S_raw_ptr): Make
	static.

From-SVN: r238305
 2016-07-13 18:22:47 +01:00
Jonathan Wakely
2d60da1031 Revert "Add non-const overload of std::string::data()" 
This reverts r238291 aka 4300aa2087d90cd2d55852fa38f082a89bc7e72d.

From-SVN: r238303
 2016-07-13 16:56:46 +01:00
Ville Voutilainen
86c0ec1de1 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.

From-SVN: r238292
 2016-07-13 14:25:51 +03:00
Jonathan Wakely
ceea48fc64 Add non-const overload of std::string::data() 
Also fix confusion between pointer and _CharT*, so that allocators with
fancy pointers work correctly.

	* 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.

From-SVN: r238291
 2016-07-13 12:08:37 +01:00
François Dumont
76225d2ca7 stl_vector.h (push_back(const value_type&)): Forward to _M_realloc_insert. 
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.

From-SVN: r238226
 2016-07-11 20:17:56 +00:00
Ville Voutilainen
435e56fb52 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.

From-SVN: r238197
 2016-07-10 20:44:21 +03:00
Ville Voutilainen
52e8622199 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.

From-SVN: r238061
 2016-07-07 01:33:20 +03:00
Ville Voutilainen
3042e70851 Add a new header for diagnosing the use of C++17 facilities in pre-C++17 modes. 
From-SVN: r238058
 2016-07-06 21:07:57 +03:00
Ville Voutilainen
6ffe854859 Implement LWG 2451, optional<T> should 'forward' T's implicit conversions. 
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.

From-SVN: r238049
 2016-07-06 16:26:10 +03:00
Ville Voutilainen
7d4f48b5b8 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.

From-SVN: r238022
 2016-07-05 21:33:18 +03:00
Jonathan Wakely
9958c7eb58 Fix std::vector's use of temporary objects 
* 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.

From-SVN: r237985
 2016-07-04 15:52:46 +01:00
François Dumont
dc448fa03b re PR libstdc++/71640 (include/c++/7.0.0/bits/hashtable.h:293:7: error: too many template parameters in template redeclaration) 
2016-06-27  François Dumont  <fdumont@gcc.gnu.org>

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

From-SVN: r237803
 2016-06-27 20:41:59 +00:00
François Dumont
e615c24c30 array (array<>::swap): Fix noexcept qualificaton for zero-size array. 
2016-06-23  François Dumont  <fdumont@gcc.gnu.org>

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

From-SVN: r237747
 2016-06-23 20:21:47 +00:00
François Dumont
29dbb034cb re PR libstdc++/71181 (Reserving in unordered_map doesn't reserve enough) 
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.

From-SVN: r237617
 2016-06-20 20:04:25 +00:00
Jonathan Wakely
3ebacabd0e libstdc++/71545 fix debug checks in binary search algorithms 
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.

From-SVN: r237560
 2016-06-17 19:28:34 +01:00
François Dumont
bd2ee798d5 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.

From-SVN: r237541
 2016-06-16 20:34:08 +00:00
Daniel Kruegler
6b9539e2aa Provide swappable traits (p0185r1) 
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.

From-SVN: r237531
 2016-06-16 16:07:19 +01:00
Jonathan Wakely
33ac58d529 Remove trailing whitespace from libstdc++ headers 
* 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.

From-SVN: r237528
 2016-06-16 14:47:35 +01:00
Jonathan Wakely
0ae207e947 Optimize inserting value_type into std::vector 
* 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.

From-SVN: r237526
 2016-06-16 13:42:21 +01:00
François Dumont
d7e16fc536 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.

From-SVN: r237495
 2016-06-15 20:09:56 +00:00
François Dumont
373c00952c tuple (_Head_base<>): Default specialization condition at type declaration. 
2016-06-07  François Dumont  <fdumont@gcc.gnu.org>

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

From-SVN: r237184
 2016-06-07 20:19:19 +00:00
Ville Voutilainen
dbc6221fe5 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.

From-SVN: r237143
 2016-06-06 19:28:59 +03:00
Ville Voutilainen
7a66745357 Protect allocator-overloads of tuple-from-tuple constructors from cases that would create dangling references. 
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.

From-SVN: r237106
 2016-06-05 20:39:10 +03:00
Ville Voutilainen
48035dfbea Fix build. 
From-SVN: r236823
 2016-05-27 17:34:08 +03:00
Ville Voutilainen
b702100693 re PR libstdc++/66338 (std::forward_as_tuple() issue with single argument) 
2016-05-24  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.

From-SVN: r236822
 2016-05-27 17:08:37 +03:00
Jonathan Wakely
834f4c4355 Remove _GLIBCXX14_USE_CONSTEXPR 
* 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.

From-SVN: r236697
 2016-05-25 10:36:28 +01:00
François Dumont
732eb07625 c++config (_GLIBCXX14_USE_CONSTEXPR): New. 
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.

From-SVN: r236669
 2016-05-24 20:55:57 +00:00
Jonathan Wakely
8be062c6da Add priority_queue::value_compare (LWG 2684) 
* include/bits/stl_queue.h (priority_queue::value_compare): Define.

From-SVN: r236646
 2016-05-24 16:59:05 +01:00
François Dumont
447caf82a4 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.

From-SVN: r236611
 2016-05-23 20:03:35 +00:00
Jonathan Wakely
541a9b104b libstdc++/71073 add system_header pragma to Debug Mode headers 
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.

From-SVN: r236211
 2016-05-13 15:47:46 +01:00
Jonathan Wakely
7f99d40a99 Test begin and end functions for directory iterators 
* 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.

From-SVN: r236085
 2016-05-10 16:39:20 +01:00
Jonathan Wakely
77a87b2a0e Optimize __directory_iterator_proxy for the common case 
* include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
	Overload operator* to move from rvalues.

From-SVN: r236078
 2016-05-10 14:09:22 +01:00
Jonathan Wakely
d7187f9ea1 libstdc++/71005 fix post-increment for filesystem iterators 
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.

From-SVN: r236072
 2016-05-10 12:25:06 +01:00
Ville Voutilainen
fb334765e2 Avoid endless run-time recursion for copying single-element tuples where the... 
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.

From-SVN: r236025
 2016-05-09 14:03:36 +03:00
Jonathan Wakely
e4cce0cea0 libstdc++/71004 fix recursive_directory_iterator default constructor 
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: Teste default construction.

From-SVN: r236023
 2016-05-09 11:09:37 +01:00
Jonathan Wakely
d9cb3e7598 libstdc++/70940 Start fixing polymorphic memory resources 
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.

From-SVN: r235868
 2016-05-04 13:08:45 +01:00
Jonathan Wakely
9f9eb84eac libstdc++/70766 use std::addressof instead of operator& 
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.

From-SVN: r235565
 2016-04-28 13:33:07 +01:00
Jonathan Wakely
272b2ce49f hashtable_policy.h (__detail::_Insert_base, [...]): Improve comments. 
* include/bits/hashtable_policy.h (__detail::_Insert_base,
	__detail::_Insert): Improve comments.

From-SVN: r235564
 2016-04-28 13:32:50 +01:00
Jonathan Wakely
45e206963a libstdc++/70767 Define std::numeric_limits<cv T> in C++98 mode 
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.

From-SVN: r235486
 2016-04-27 12:57:58 +01:00
Tim Shen
216f7526fe re PR libstdc++/70745 (Wrong handling of regex_constant::match_not_eow and regex_constant::match_not_bow) 
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.

From-SVN: r235382
 2016-04-23 03:58:37 +00:00
Jonathan Wakely
9c476ad426 Add noexcept to Filesystem TS operators 
* 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.

From-SVN: r235214
 2016-04-19 19:02:32 +01:00
Edward Smith-Rowland
d855ad89cb c++14_warning.h: Do not refer C++14 as experimental. 
2016-04-19  Edward Smith-Rowland  <3dw4rd@verizon.net>

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

From-SVN: r235210
 2016-04-19 16:29:05 +00:00
Jonathan Wakely
0cded43df4 PR libstdc++/41759 reword static assertions in <random> 
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.

From-SVN: r235160
 2016-04-18 19:03:50 +01:00
Jonathan Wakely
90751aa731 Remove unused typedefs in std::bind types 
* include/std/function (_Bind, _Bind_result): Remove unused typedefs.

From-SVN: r235157
 2016-04-18 17:37:56 +01:00
Jonathan Wakely
b05cf382e0 Define std:🧵:id comparison operators at namespace-scope 
From-SVN: r235155
 2016-04-18 17:16:14 +01:00
Jonathan Wakely
6b6147dd48 Add attribute((unused)) in libstdc++ headers 
* include/bits/locale_facets.h (ctype::do_narrow): Add attribute to
	unused parameter.
	* include/bits/regex_automaton.h (_NFA::_M_insert_alt): Likewise.

From-SVN: r235152
 2016-04-18 16:44:12 +01:00
Jonathan Wakely
8dc1e574ae Avoid -Wsign-compare warnings in std::to_string() 
* include/ext/string_conversions.h (__stoa): Avoid -Wsign-compare
        warnings.

From-SVN: r235151
 2016-04-18 16:43:50 +01:00
Edward Smith-Rowland
9a9534e162 Obvious typo in comment. 
From-SVN: r235091
 2016-04-18 02:30:31 +00:00
Jason Merrill
9f285ccb77 Revert empty class parameter passing ABI changes. 
From-SVN: r234977
 2016-04-14 12:23:06 -04:00
Jonathan Wakely
a6297ab587 Adjust for new empty class parameter passing ABI. 
* 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.

From-SVN: r234964
 2016-04-13 23:00:50 +01:00
Edward Smith-Rowland
0c39f36dc5 Document C++17/TR29124 C++ Special Math Functions. 
2016-04-12  Edward Smith-Rowland  <3dw4rd@verizon.net>

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

From-SVN: r234905
 2016-04-12 16:31:25 +00:00
Ville Voutilainen
7b3318c41e re PR libstdc++/70437 (Instantiation loop with pair and is_constructible) 
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.

From-SVN: r234743
 2016-04-05 14:31:30 +03:00
Bernd Edlinger
bfd84e6ba5 Makefile.am (install-freestanding-headers): Add concept_check.h and move.h to the installed headers. 
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.

From-SVN: r234414
 2016-03-23 00:41:52 +00:00
Jonathan Wakely
86715b0917 libstdc++/69939 Qualify get and forward 
PR libstdc++/69939
	* include/experimental/tuple (__apply_impl): Qualify get and forward.

From-SVN: r233666
 2016-02-24 13:59:29 +00:00
Jonathan Wakely
9aee022eb9 libstdc++/69893 make <tr1/cmath> work with C++11 
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.

From-SVN: r233644
 2016-02-23 19:49:31 +00:00
Bernd Edlinger
5f6dd5930f re PR libstdc++/69881 (with gcc-6 of today building gcc-4.9 fails) 
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_*.

From-SVN: r233636
 2016-02-23 15:57:09 +00:00
Tim Shen
244901a572 re PR libstdc++/69794 (std::regex_search match failure with regex object with flags grep|icase) 
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.

From-SVN: r233482
 2016-02-17 03:33:02 +00:00
Bernd Edlinger
571512d5f5 Don't define guard macros when doing #include_next in math.h and stdlib.h 
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.

From-SVN: r233035
 2016-02-01 11:13:40 +00:00
John David Anglin
69b0daeb4a re PR libstdc++/69450 (libstdc++-v3/include/math.h:66:1 2: error: 'constexpr bool std::isnan(double)' conflicts with a previous declaration) 
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.

From-SVN: r232925
 2016-01-28 13:09:23 +00:00
Jonathan Wakely
f1d591e8a6 Fix assertions for move assignment of trivial types 
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.

From-SVN: r232842
 2016-01-26 19:38:20 +00:00
Andris Pavenis
8964d2a090 Fix build failure when wide character support is not available 
* include/c_compatibility/stdlib.h: Include wide character related
	definitions only when they are available in cstdlib.

From-SVN: r232835
 2016-01-26 18:07:33 +02:00
Jonathan Wakely
2944621e2c Avoid including all of <random> in <algorithm> 
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.

From-SVN: r232798
 2016-01-25 16:44:30 +00:00
Edward Smith-Rowland
02dc241929 TR29124 C++ Special Math - <math.h> pulls funcs into global namespace. 
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.

From-SVN: r232755
 2016-01-22 23:17:10 +00:00
Jonathan Wakely
d1fb377c68 Constrain std::valarray functions and operators 
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.

From-SVN: r232748
 2016-01-22 21:15:41 +00:00
Jonathan Wakely
350fe2829e Allow _GLIBCXX_HAVE_OBSOLETE_ISINF_ISNAN to be overridden 
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.

From-SVN: r232726
 2016-01-22 12:47:26 +00:00
Jonathan Wakely
ab56cbed60 libstdc++/69406 Fix test to check for supported headers 
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.

From-SVN: r232672
 2016-01-21 13:33:27 +00:00
Jonathan Wakely
3f93466af4 Add C++11 <cmath> overloads to the global namespace 
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.

From-SVN: r232627
 2016-01-20 17:44:58 +00:00
Jonathan Wakely
eac437bf2c Ensure C++ language linkage in cmath and cstdlib 
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.

From-SVN: r232607
 2016-01-20 12:34:25 +00:00
Jonathan Wakely
96e19adabc Add C++-conforming wrappers for stdlib.h and math.h 
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.

From-SVN: r232586
 2016-01-19 21:43:55 +00:00
Torvald Riegel
9585381acd libstdc++: Fix usage of __GXX_WEAK__ in TM TS support. 
* 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.

From-SVN: r232539
 2016-01-18 20:09:55 +00:00
Jonathan Wakely
9c5ad80efd Fix construction of std::function from null pointer-to-member 
PR libstdc++/69293
	* 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.

From-SVN: r232504
 2016-01-18 11:43:37 +00:00
Jonathan Wakely
d7c1581c04 Use static assertion for uses-allocator construction 
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.

From-SVN: r232457
 2016-01-15 23:12:13 +00:00
Torvald Riegel
a04d5fc95d libstdc++: Make certain exceptions transaction_safe. 
From-SVN: r232454
 2016-01-15 22:42:41 +00:00
Steve Ellcey
cebeb718fe random.tcc: Use __builtin_isfinite instead of std::isfinite. 
2016-01-15  Steve Ellcey  <sellcey@imgtec.com>

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

From-SVN: r232452
 2016-01-15 22:26:02 +00:00
Jonathan Wakely
3b07547d62 * include/bits/std_mutex.h: Fix Doxygen @file name. 
From-SVN: r232416
 2016-01-15 12:37:15 +00:00
Edward Smith-Rowland
2be75957b8 Implement TR29124 C++ special Math Functions. 
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.


Co-Authored-By: Florian Goth <CaptainSifff@gmx.de>
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r232377
 2016-01-14 18:12:43 +00:00
Jonathan Wakely
39a1d8c894 Use ::isinf and ::isnan if libc defines them 
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.

From-SVN: r232327
 2016-01-13 16:25:56 +00:00
Daniel Kruegler
26b5ace7ea libstdc++/68877 Reimplement std::__is_swappable 
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.

From-SVN: r232296
 2016-01-12 21:19:58 +00:00
Jonathan Wakely
1c3c7c4145 Prevent recursive instantiation in std::function 
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.

From-SVN: r232273
 2016-01-12 14:54:33 +00:00
Jonathan Wakely
1517bc3008 allocator_traits<allocator<T>> partial specialization 
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.

From-SVN: r232232
 2016-01-11 16:47:58 +00:00
Jonathan Wakely
e525d78caa Add missing include for std::__addressof 
PR libstdc++/69160
	* include/bits/uses_allocator.h: Add missing include.

From-SVN: r232162
 2016-01-08 13:14:01 +00:00
Jonathan Wakely
f885fa898f Use std::addressof in insert iterators, allocators and promises 
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.

From-SVN: r232129
 2016-01-07 15:01:33 +00:00
Jonathan Wakely
373a75fb2a Remove noexcept from function template that can throw 
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.

From-SVN: r232112
 2016-01-06 20:34:41 +00:00
Jonathan Wakely
0c3e5dd1e6 Rename bits/mutex.h to avoid clashing with glibc 
* 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.

From-SVN: r232101
 2016-01-06 13:00:33 +00:00
Jakub Jelinek
818ab71a41 Update copyright years. 
From-SVN: r232055
 2016-01-04 15:30:50 +01:00
Edward Smith-Rowland
9be77061cf 2015-12-27 Edward Smith-Rowland <3dw4rd@verizon.net> 
* include/bits/c++0x_warning.h Remove experimental language.

From-SVN: r231966
 2015-12-28 00:07:19 +00:00
Jonathan Wakely
9643ce888b Add inline to std::__invfwd 
PR libstdc++/59768
	* include/std/functional (__invfwd): Add inline specifier.

From-SVN: r231900
 2015-12-22 11:37:07 +00:00
Jonathan Wakely
a716d11ad4 libstdc++/68995 qualify calls to __callable_functor 
PR libstdc++/68995
	* include/std/functional (_function_handler, function): Qualify
	__callable_functor.
	* testsuite/20_util/function/68995.cc: New.

From-SVN: r231880
 2015-12-21 13:02:18 +00:00
Jonathan Wakely
e9e6a99538 libstdc++/68276 consistently qualify std::forward 
PR libstdc++/68276
	* include/std/functional (__invoke_impl, _Mem_fn::operator()): Qualify
	std::forward.
	testsuite/20_util/function_objects/mem_fn/68276.cc: New.

From-SVN: r231879
 2015-12-21 13:02:12 +00:00
Ville Voutilainen
de0830e12b re PR libstdc++/66693 ([C++17] std::tuple_size fails with const std::array) 
PR libstdc++/66693.

	* include/std/tuple (tuple_element, tuple_size, tuple_element_t,
	__tuple_element_t): Move to...
	* include/std/utility: ...here.
	* testsuite/20_util/pair/astuple/astuple.cc: Adjust.
	* testsuite/20_util/pair/astuple/astuple_cpp14.cc: New.
	* testsuite/20_util/tuple/tuple_element.cc: Adjust.
	* testsuite/20_util/tuple/tuple_element_t.cc: Likewise.
	* testsuite/20_util/tuple/tuple_size.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element.cc:
	Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element_cpp14.cc:
	New.
	* testsuite/23_containers/array/tuple_interface/tuple_size.cc: Adjust.

From-SVN: r231875
 2015-12-21 13:22:16 +02:00
Jonathan Wakely
b110e777bd Restore accidentally-removed volatile qualifier 
* include/std/functional (_Mu<_Arg, false, false>::operator()): Restore
	accidentally-removed volatile qualifier.

From-SVN: r231660
 2015-12-15 17:06:25 +00:00
Jonathan Wakely
72030b28a1 Remove vestigial traces of std::tr1::bind 
* include/std/functional (is_placeholder, is_bind_expression): Update
	comments.
	(_Safe_tuple_element): Replace with _Safe_tuple_element_t alias
	template.
	(_Mu): Remove vestigial TR1 return types and update coments.

From-SVN: r231653
 2015-12-15 14:17:27 +00:00
Jonathan Wakely
6666731254 Fix cv-qualifiers in std::bind invocation 
PR libstdc++/68912
	* include/std/functional (_Bind::operator()): Use lvalue functor to
	deduce return type.
	* testsuite/20_util/bind/68912.cc: New.

From-SVN: r231652
 2015-12-15 14:17:17 +00:00
Tim Shen
3ce38f68f9 re PR libstdc++/68863 (Regular expressions: Backreferences don't work in negative lookahead) 
PR libstdc++/68863
	* include/bits/regex_executor.tcc (_Executor::_M_lookahead):
	Copy the captured content for lookahead, so that the backreferences
	inside can refer to them.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/68863.cc:
	New testcase.

From-SVN: r231641
 2015-12-15 04:50:29 +00:00
Jonathan Wakely
f3d7dd52a6 Fix std::invoke support for reference_wrappers 
PR libstdc++/59768
	* include/std/functional (_Unwrap, __invfwd): Define.
	(__invoke_impl): Remove reference_wrapper overloads and use __invfwd.
	* include/std/type_traits (__result_of_memobj, __result_of_memfun):
	Add partial specializations for const reference_wrappers and simplify.
	* testsuite/20_util/bind/ref_neg.cc: Use dg-excess-errors.
	* testsuite/20_util/function_objects/invoke/59768.cc: New.

From-SVN: r231574
 2015-12-11 21:45:51 +00:00
Jonathan Wakely
aca12aff8b Fix dejagnu directives in shared_ptr test 
PR libstdc++/68825
	* include/experimental/bits/shared_ptr.h (__shared_ptr, __weak_ptr,
	experimental::shared_ptr, experimental::weak_ptr): Constrain
	assignment operators.
	* testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc:
	Change to a compile-only test and change dg-excess-errors to dg-error.

From-SVN: r231516
 2015-12-10 14:32:16 +00:00
Jonathan Wakely
6b4f890601 Improve generated libstdc++ API docs 
* doc/doxygen/user.cfg.in: Use EXTENSION_MAPPING tag. Add new headers
	to INPUT. Remove obsolete XML_SCHEMA and XML_DTD tags. Update
	PREDEFINED macros. Set BRIEF_MEMBER_DESC for man-pages.
	* include/backward/strstream: Correct @file comment.
	* include/bits/forward_list.h: Improve Doxygen comments.
	* include/bits/locale_facets_nonio.h: Likewise.
	* include/bits/mutex.h: Likewise.
	* include/bits/shared_ptr.h: Likewise.
	* include/bits/stl_deque.h: Likewise.
	* include/debug/vector (_Safe_vector): Add @brief section to comment.
	* include/experimental/bits/fs_dir.h: Correct @file comment.
	* include/experimental/bits/fs_fwd.h: Likewise.
	* include/experimental/bits/fs_ops.h: Likewise.
	* include/experimental/bits/fs_path.h: Likewise.
	* include/experimental/bits/string_view.tcc: Likewise.
	* include/experimental/optional: Document experimental status.
	* include/experimental/string_view: Correct @file comment.
	* include/ext/pb_ds/detail/bin_search_tree_/traits.hpp: Reduce
	whitespace to avoid Doxygen bug.
	* include/std/bitset: Remove redundant @class Doxygen command. Add
	parentheses to avoid Doxygen bug.
	* include/std/mutex: Improve Doxygen comments.
	* include/tr2/dynamic_bitset: Add missing @param documentation.
	* scripts/run_doxygen: Rename man pages for std::experimental types.

From-SVN: r231512
 2015-12-10 14:02:52 +00:00
Jonathan Wakely
755be51d02 PR libstdc++/57060 cope with invalid thread IDs 
PR libstdc++/57060
	* include/std/thread (operator==(thread::id, thread::id)): Do not use
	__gthread_equal.
	(operator<(thread::id, thread::id)): Add comment.
	(this_thread::get_id()): Do not use __gthread_self for single-threaded
	programs using glibc.
	* testsuite/30_threads/this_thread/57060.cc: New.

From-SVN: r231289
 2015-12-04 17:32:40 +00:00
Jonathan Wakely
28eca950b7 Fix ambiguity with multiple enable_shared_from_this bases 
PR libstdc++/56383
	* testsuite/20_util/enable_shared_from_this/56383.cc: New.
	* include/bits/shared_ptr_base.h (__enable_shared_from_this): Make
	friend declaration match previous declaration of
	__enable_shared_from_this_helper.
	* include/bits/shared_ptr.h (enable_shared_from_this): Likewise.

From-SVN: r231181
 2015-12-02 15:08:18 +00:00
Jonathan Wakely
22f5095f31 Define path::_Cmpt after specializing path::__is_encoded_char 
* include/experimental/bits/fs_path.h (path::_Cmpt): Move definition
	after path::__is_encoded_char explicit specializations.

From-SVN: r231107
 2015-12-01 11:33:17 +00:00
Rainer Orth
ef3a75060e Handle C++11 <math.h> overloads on Solaris 12 
* acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): New test.
	* configure.ac: Use it.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	* include/c_global/cmath [__cplusplus >= 201103L]
	(std::fpclassify): Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
	(std::isfinite): Likewise.
	(std::isinf): Likewise.
	(std::isnan): Likewise.
	(std::isnormal): Likewise.
	(std::signbit): Likewise.
	(std::isgreater): Likewise.
	(std::isgreaterequal): Likewise.
	(std::isless): Likewise.
	(std::islessequal): Likewise.
	(std::islessgreater): Likewise.
	(std::isunordered): Likewise.
	(std::acosh): Likewise.
	(std::asinh): Likewise.
	(std::atanh): Likewise.
	(std::cbrt): Likewise.
	(std::copysign): Likewise.
	(std::erf): Likewise.
	(std::erfc): Likewise.
	(std::exp2): Likewise.
	(std::expm1): Likewise.
	(std::fdim): Likewise.
	(std::fma): Likewise.
	(std::fmax): Likewise.
	(std::fmin): Likewise.
	(std::hypot): Likewise.
	(std::ilogb): Likewise.
	(std::lgamma): Likewise.
	(std::llrint): Likewise.
	(std::llround): Likewise.
	(std::log1p): Likewise.
	(std::log2): Likewise.
	(std::logb): Likewise.
	(std::lrint): Likewise.
	(std::lround): Likewise.
	(std::nearbyint): Likewise.
	(std::nextafter): Likewise.
	(std::nexttoward): Likewise.
	(std::remainder): Likewise.
	(std::remquo): Likewise.
	(std::rint): Likewise.
	(std::round): Likewise.
	(std::scalbln): Likewise.
	(std::scalbn): Likewise.
	(std::tgamma): Likewise.
	(std::trunc): Likewise.
	* include/tr1/cmath [_GLIBCXX_USE_C99_MATH_TR1] (std::tr1::acosh):
	Wrap in !__CORRECT_ISO_CPP11_MATH_H_PROTO.
	(std::tr1::asinh): Likewise.
	(std::tr1::atanh): Likewise.
	(std::tr1::cbrt): Likewise.
	(std::tr1::copysign): Likewise.
	(std::tr1::erf): Likewise.
	(std::tr1::erfc): Likewise.
	(std::tr1::exp2): Likewise.
	(std::tr1::expm1): Likewise.
	(std::tr1::fabs): Likewise.
	(std::tr1::fdim): Likewise.
	(std::tr1::fma): Likewise.
	(std::tr1::fmax): Likewise.
	(std::tr1::fmin): Likewise.
	(std::tr1::hypot): Likewise.
	(std::tr1::ilogb): Likewise.
	(std::tr1::lgamma): Likewise.
	(std::tr1::llrint): Likewise.
	(std::tr1::llround): Likewise.
	(std::tr1::log1p): Likewise.
	(std::tr1::log2): Likewise.
	(std::tr1::logb): Likewise.
	(std::tr1::lrint): Likewise.
	(std::tr1::lround): Likewise.
	(std::tr1::nearbyint): Likewise.
	(std::tr1::nextafter): Likewise.
	(std::tr1::nexttoward): Likewise.
	(std::tr1::remainder): Likewise.
	(std::tr1::remquo): Likewise.
	(std::tr1::rint): Likewise.
	(std::tr1::scalbln): Likewise.
	(std::tr1::scalbn): Likewise.
	(std::tr1::tgamma): Likewise.
	(std::tr1::trunc): Likewise.
	(std::tr1::pow): Likewise.

	* testsuite/26_numerics/headers/cmath/c99_classification_macros_c.cc:
	Restrict dg-xfail-if, dg-excess-errors to *-*-solaris2.1[01]*.

From-SVN: r230807
 2015-11-24 13:15:43 +00:00
Jonathan Wakely
5f0b7c9548 PR libstdc++/66059 optimise _Build_index_tuple 
PR libstdc++/66059
	* include/std/utility (_Build_index_tuple): Optimise.

From-SVN: r230496
 2015-11-17 19:54:33 +00:00
Jonathan Wakely
356510acd9 PR libstdc++/68353 fix _GLIBCXX_USE_C99_WCHAR test 
PR libstdc++/68353
	* include/bits/basic_string.h: Test value of _GLIBCXX_USE_C99_WCHAR
	not whether it is defined.
	* include/ext/vstring.h: Likewise.

From-SVN: r230395
 2015-11-15 11:15:08 +00:00
Jonathan Wakely
5ae465c530 Define std::experimental::randint etc. 
* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/experimental/random: New.
	* testsuite/experimental/random/randint.cc: New.

From-SVN: r230332
 2015-11-13 16:49:40 +00:00
Jennifer Yao
23c64853c8 More fine-grained autoconf checks for C99 library 
2015-11-13  Jennifer Yao  <jenny.hyphen.fa@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/58393
	PR libstdc++/61580
	* acinclude.m4 (GLIBCXX_ENABLE_C99): Perform tests twice, with
	-std=c++11 as well as -std=c++98, and define separate macros for each.
	Cache the results of checking for complex math and wide character
	functions. Reformat for readability.
	* config.h.in: Regenerate.
	* include/bits/c++config: Define _GLIBCXX_USE_C99_XXX macros to
	either _GLIBCXX98_USE_C99_XXX or _GLIBCXX11_USE_C99_XXX according to
	language standard in use.
	* config/locale/dragonfly/c_locale.h (std::__convert_from_v): Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* config/locale/generic/c_locale.h (std::__convert_from_v): Likewise.
	* config/locale/gnu/c_locale.h (std::__convert_from_v): Likewise.
	* config/os/bsd/dragonfly/os_defines.h: Define _GLIBCXX_USE_C99_STDIO,
	_GLIBCXX_USE_C99_STDLIB, and _GLIBCXX_USE_C99_WCHAR.
	* configure: Regenerate.
	* include/bits/basic_string.h: Make numeric conversion functions
	depend on _GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, or
	_GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99.
	* include/ext/vstring.h: Likewise.
	* include/bits/locale_facets.tcc (std::num_put::_M_insert_float):
	Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* include/bits/locale_facets_nonio.tcc (std::money_put::do_put):
	Likewise.
	* include/c_compatibility/math.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_MATH.
	* include/c_compatibility/wchar.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/c_global/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/c_global/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/c_global/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/c_std/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/c_std/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/c_std/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/tr1/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/tr1/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/tr1/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/tr1/stdlib.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* src/c++98/locale_facets.cc (std::__num_base::_S_format_float):
	Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* testsuite/18_support/exception_ptr/60612-terminate.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/18_support/exception_ptr/60612-unexpected.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc
	(test01): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stof.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoi.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stol.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stold.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoll.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoul.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoull.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	to_wstring.cc: Likewise.
	* testsuite/26_numerics/headers/cstdlib/13943.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/26_numerics/headers/cstdlib/types_std_c++0x.cc: Likewise.
	* testsuite/lib/libstdc++.exp (check_v3_target_string_conversions):
	Change preprocessor #if conditional so that it uses
	_GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, and
	_GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99.
	* testsuite/tr1/8_c_compatibility/cmath/templates.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_MATH.
	* testsuite/tr1/8_c_compatibility/cstdio/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/tr1/8_c_compatibility/cstdlib/types_std_tr1.cc: Likewise.
	* testsuite/tr1/8_c_compatibility/cwchar/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR.
	* testsuite/util/testsuite_fs.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r230324
 2015-11-13 14:51:25 +00:00
Jonathan Wakely
011b25e4f5 * include/experimental/bits/shared_ptr.h: Tweak comments. 
From-SVN: r230306
 2015-11-13 11:30:30 +00:00
Fan You
930d560203 Implement std::experimental::shared_ptr with array support 
2015-11-13  Fan You  <youfan.noey@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/experimental/bits/shared_ptr.h: New.
	* include/experimental/memory: Include new header.
	* testsuite/experimental/memory/shared_ptr/assign/assign.cc: New.
	* testsuite/experimental/memory/shared_ptr/cast/cast.cc: New.
	* testsuite/experimental/memory/shared_ptr/comparison/comparison.cc:
	New.
	* testsuite/experimental/memory/shared_ptr/cons/alias_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/alloc_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/copy_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/copy_ctor_neg.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/default_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/move_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/pointer_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
	New.
	* testsuite/experimental/memory/shared_ptr/cons/weak_ptr_ctor.cc: New.
	* testsuite/experimental/memory/shared_ptr/dest/dest.cc: New.
	* testsuite/experimental/memory/shared_ptr/modifiers/reset.cc: New.
	* testsuite/experimental/memory/shared_ptr/modifiers/swap.cc: New.
	* testsuite/experimental/memory/shared_ptr/observers/bool_conv.cc:
	New.
	* testsuite/experimental/memory/shared_ptr/observers/operators.cc:
	New.
	* testsuite/experimental/memory/shared_ptr/observers/owner_before.cc:
	New.
	* testsuite/experimental/memory/shared_ptr/observers/use_count.cc: New.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r230300
 2015-11-13 11:05:28 +00:00
Jonathan Wakely
8014404589 Define alias templates using polymorphic memory resources 
* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/experimental/memory_resource: Add feature-test macro.
	* include/experimental/regex: New.
	* include/experimental/deque: Add alias template using PMR.
	* include/experimental/forward_list: Likewise.
	* include/experimental/list: Likewise.
	* include/experimental/map: Likewise.
	* include/experimental/set: Likewise.
	* include/experimental/string: Likewise.
	* include/experimental/unordered_map: Likewise.
	* include/experimental/unordered_set: Likewise.
	* include/experimental/vector: Likewise.

From-SVN: r230295
 2015-11-13 10:01:05 +00:00
Fan You
bfeffbd1ae Implement C++ LFTSv1 polymorphic memory resources 
2015-11-13  Fan You  <youfan.noey@gmail.com>

	* include/Makefile.am: Add new headers.
	* include/Makefile.in: Regenerate.
	* include/bits/uses_allocator.h (__erased_type): Define.
	(__uses_allocator_helper): Check for __erased_type.
	* include/experimental/memory_resource: New.
	* include/experimental/utlity: New.
	* testsuite/experimental/type_erased_allocator/1.cc: New.
	* testsuite/experimental/type_erased_allocator/1_neg.cc: New.
	* testsuite/experimental/type_erased_allocator/2.cc: New.
	* testsuite/experimental/type_erased_allocator/uses_allocator.cc: New.

From-SVN: r230294
 2015-11-13 10:00:59 +00:00
Jonathan Wakely
fbfae2f089 Extend valid values of iostream bitmask types 
PR libstdc++/56158
	* include/bits/ios_base.h (_Ios_Fmtflags, _Ios_Openmode, _Ios_Iostate):
	Define enumerators to ensure all values of type int are valid values
	of the enumeration type.
	* testsuite/27_io/ios_base/types/fmtflags/case_label.cc: Add new cases.
	* testsuite/27_io/ios_base/types/iostate/case_label.cc: Likewise.
	* testsuite/27_io/ios_base/types/openmode/case_label.cc: Likewise.

From-SVN: r230267
 2015-11-12 17:08:42 +00:00
Jonathan Wakely
f022ab0310 * include/std/thread: Include <cerrno> for EINTR. 
From-SVN: r230266
 2015-11-12 16:13:06 +00:00
Ville Voutilainen
c3a6648b1c Implement D0013R2, logical type traits. 
2015-11-12  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement D0013R2, logical type traits.

	/libstdc++-v3
	* include/experimental/type_traits (conjunction_v, disjunction_v,
	negation_v): New.
	* include/std/type_traits (conjunction, disjunction, negation):
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Likewise.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/experimental/type_traits/value.cc: Likewise.
	* testsuite/20_util/logical_traits/requirements/explicit_instantiation.cc: New.
	* testsuite/20_util/logical_traits/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/logical_traits/value.cc: Likewise.

	/testsuite
	* g++.dg/cpp0x/Wattributes1.C: Adjust.

From-SVN: r230258
 2015-11-12 15:56:31 +02:00
Jonathan Wakely
53dc6fb862 * include/experimental/bits/string_view.tcc: Fix doxygen @file. 
From-SVN: r230221
 2015-11-12 10:08:49 +00:00
Jonathan Wakely
f55e699d3d Loop in std::this_thread sleep functions 
PR libstdc++/60421
	* include/std/thread (this_thread::sleep_for): Retry on EINTR.
	(this_thread::sleep_until): Retry if time not reached.
	* src/c++11/thread.cc (__sleep_for): Retry on EINTR.
	* testsuite/30_threads/this_thread/60421.cc: Test interruption and
	non-steady clocks.

From-SVN: r230183
 2015-11-11 17:08:51 +00:00
Ville Voutilainen
269fa2a91b LWG 2510, make the default constructors of library tag types explicit. 
2015-11-10  Ville Voutilainen  <ville.voutilainen@gmail.com>

	LWG 2510, make the default constructors of library tag types
	explicit.
	* include/bits/mutex.h (defer_lock_t, try_lock_t,
	adopt_lock_t): Add an explicit default constructor.
	* include/bits/stl_pair.h (piecewise_construct_t): Likewise.
	* include/bits/uses_allocator.h (allocator_arg_t): Likewise.
	* libsupc++/new (nothrow_t): Likewise.
	* testsuite/17_intro/tag_type_explicit_ctor.cc: New.

From-SVN: r230175
 2015-11-11 16:47:19 +02:00
Jonathan Wakely
d4a9dffbaa Fix return type of heterogeneous find for sets 
PR libstdc++/68190
	* include/bits/stl_multiset.h (multiset::find): Fix return types.
	* include/bits/stl_set.h (set::find): Likewise.
	* testsuite/23_containers/map/operations/2.cc: Test find return types.
	* testsuite/23_containers/multimap/operations/2.cc: Likewise.
	* testsuite/23_containers/multiset/operations/2.cc: Likewise.
	* testsuite/23_containers/set/operations/2.cc: Likewise.

From-SVN: r230113
 2015-11-10 15:12:24 +00:00
Jonathan Wakely
fb9333352b * include/bits/functional_hash.h: Fix grammar in comment. 
From-SVN: r230097
 2015-11-10 11:12:33 +00:00
François Dumont
ec494945a9 2015-11-09 François Dumont <fdumont@gcc.gnu.org> 
* include/bits/stl_algo.h
	(partial_sort_copy): Instantiate std::iterator_traits only if concept
	checks.
	(lower_bound): Likewise.
	(upper_bound): Likewise.
	(equal_range): Likewise.
	(binary_search): Likewise.
	* include/bits/stl_heap.h (pop_heap): Likewise.

From-SVN: r230052
 2015-11-09 21:10:18 +00:00
Ville Voutilainen
f763219373 Make the default constructors of tuple and pair conditionally explicit. 
2015-11-03  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Make the default constructors of tuple and pair conditionally explicit.
	* include/std/type_traits (is_unsigned, __is_array_unknown_bounds,
	__is_default_constructible_atom, __is_default_constructible_safe,
	__is_direct_constructible_new_safe, __is_direct_constructible_ref_cast,
	__is_nt_default_constructible_impl, is_nothrow_default_constructible,
	is_nothrow_constructible, is_nothrow_assignable,
	is_trivially_constructible, is_trivially_copy_constructible,
	is_trivially_move_constructible, is_trivially_assignable,
	is_trivially_copy_assignable, is_trivially_move_assignable,
	is_trivially_destructible): Simplify.
	* include/std/type_traits (
	__do_is_implicitly_default_constructible_impl,
	__is_implicitly_default_constructible_impl,
	__is_implicitly_default_constructible_safe,
	__is_implicitly_default_constructible): New.
	* include/bits/stl_pair.h (pair::pair()): Use it.
	* include/std/tuple (tuple<_T1, _T2>::tuple): Use it.
	* include/std/tuple (_ImplicitlyDefaultConstructibleTuple): New.
	* include/std/tuple (tuple<_Types...>::tuple()): Use it.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/is_implicitly_default_constructible/requirements/explicit_instantiation.cc: New.
	* testsuite/20_util/is_implicitly_default_constructible/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_implicitly_default_constructible/value.cc: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Likewise.
	* testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
	* testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.

From-SVN: r229699
 2015-11-03 10:41:40 +02:00
Jonathan Wakely
93e954005f Implement C++17 std::invoke and LWG DR 2219 
* include/std/functional (__invoke_impl): New overloads.
	(__invoke): Replace with a single function calling __invoke_impl.
	(invoke): Add C++17 std::invoke.
	(reference_wrapper::operator()): Qualify call to __invoke.
	(_Mem_fn_traits_base, _Mem_fn_traits): Remove unused typedefs.
	(_Mem_fn_base): Remove unused typedefs and implement call operator in
	terms of __invoke.
	* include/std/future (__future_base::_Async_state_commonV2): Do not
	pass reference_wrapper as object argument to call_once.
	* include/std/type_traits (result_of): Define nested __invoke_type.
	Handle reference_wrapper as per LWG 2219.
	* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error directives.
	* testsuite/20_util/function_objects/mem_fn/55463.cc: Remove tests
	using member functions of reference_wrapper.

From-SVN: r229290
 2015-10-25 01:00:54 +01:00
Jonathan Wakely
6fbd598400 Return deferred future if thread cannot be run 
* include/std/future (async): Use deferred function on exception.
	* testsuite/30_threads/async/except.cc: New.

From-SVN: r229289
 2015-10-24 22:36:50 +01:00
Jonathan Wakely
f9badf7134 * include/std/type_traits (__cpp_lib_bool_constant): Define. 
From-SVN: r229152
 2015-10-21 22:20:25 +01:00
Nathan Froyd
141aa58b53 opt_random.h: Include pmmintrin.h instead of x86intrin.h, and only do so when __SSE3__ 
* config/cpu/i486/opt/bits/opt_random.h: Include pmmintrin.h instead
	of x86intrin.h, and only do so when __SSE3__
	* include/ext/random: Include emmintrin.h instead of x86intrin.h

From-SVN: r228786
 2015-10-13 20:55:44 +00:00
Jonathan Wakely
ea4554eaea Add include/experimental/bits dir 
From-SVN: r228645
 2015-10-09 12:11:54 +01:00
Ville Voutilainen
057ce49719 re PR c++/67844 (Cannot make tuple of class with template constructor) 
2015-10-05  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR 67844.
	* include/std/tuple (_TC::_NonNestedTuple): Eagerly reject
	conversions from tuple types same as the target tuple.
	* testsuite/20_util/tuple/67844.cc: New.
	* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: Add
	a missing copyright header.

From-SVN: r228468
 2015-10-05 12:57:20 +03:00
Jonathan Wakely
783aa06e9b Use noexcept instead of _GLIBCXX_NOEXCEPT 
* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::front() const, basic_string::back() const): Use
	noexcept instead of _GLIBCXX_NOEXCEPT macro.
	(__versa_string::front, __versa_string::back): Likewise.

From-SVN: r228434
 2015-10-02 23:13:12 +01:00
Jonathan Wakely
7fcdbdd21d Allow Filesystem TS to compile without wchar_t 
* include/bits/locale_conv.h [!_GLIBCXX_USE_WCHAR_T]
	(__do_str_codecvt, __str_codecvt_in, __str_codecvt_out): Enable.
	* include/experimental/fs_path.h [!_GLIBCXX_USE_WCHAR_T]
	(path::wstring, path::generic_wstring): Disable.
	* src/filesystem/path.cc (path::_S_convert_loc)
	[!_GLIBCXX_USE_WCHAR_T]: Skip conversion.
	* testsuite/experimental/filesystem/path/assign/assign.cc: Check for
	wchar_t support.
	* testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
	* testsuite/experimental/filesystem/path/construct/range.cc: Likewise.

From-SVN: r228417
 2015-10-02 20:38:38 +01:00
Jonathan Wakely
f14decafae Save-and-restore errno more carefully in libstdc++ 
* doc/xml/manual/diagnostics.xml: Document use of errno.
	* doc/html/*: Regenerate.
	* config/locale/generic/c_locale.cc (_Save_errno): New helper.
	(__convert_to_v): Use _Save_errno.
	* include/ext/string_conversions.h (__stoa): Only restore errno when
	it isn't set to non-zero.

From-SVN: r228328
 2015-10-01 12:23:39 +01:00
Jonathan Wakely
6d60110654 Leave errno unchanged by successful std::stoi etc 
* include/ext/string_conversions.h (__stoa): Save and restore errno.
	* testsuite/21_strings/basic_string/numeric_conversions/char/errno.cc:
	New.

From-SVN: r228249
 2015-09-29 16:15:39 +01:00
Jonathan Wakely
ce535a9685 Reduce space and time overhead of std::thread 
PR libstdc++/65393
	* config/abi/pre/gnu.ver: Export new symbols.
	* include/std/thread (thread::_State, thread::_State_impl): New types.
	(thread::_M_start_thread): Add overload taking unique_ptr<_State>.
	(thread::_M_make_routine): Remove.
	(thread::_S_make_state): Add.
	(thread::_Impl_base, thread::_Impl, thread::_M_start_thread)
	[_GLIBCXX_THREAD_ABI_COMPAT] Only declare conditionally.
	* src/c++11/thread.cc (execute_native_thread_routine): Rename to
	execute_native_thread_routine_compat and re-define to use _State.
	(thread::_State::~_State()): Define.
	(thread::_M_make_thread): Define new overload.
	(thread::_M_make_thread) [_GLIBCXX_THREAD_ABI_COMPAT]: Only define old
	overloads conditionally.

From-SVN: r228242
 2015-09-29 13:54:05 +01:00
Jonathan Wakely
80400b0477 LWG 2135: terminate() in condition_variable::wait() 
* include/std/condition_variable (condition_variable::wait): Add
	noexcept.
	* src/c++11/condition_variable.cc (condition_variable::wait): Call
	std::terminate on error (DR 2135).

From-SVN: r228217
 2015-09-28 19:44:40 +01:00
Ville Voutilainen
5e2f2cd584 Avoid creating dangling references in case of nested tuples 
for tuple constructors that construct from other tuples.

2015-09-25  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Avoid creating dangling references in case of nested tuples
	for tuple constructors that construct from other tuples.
	* include/std/tuple (_TC::_NonNestedTuple): New.
	* include/std/tuple (tuple::_TNTC): New.
	* include/std/tuple (tuple(const tuple<_UElements...>&),
	tuple(tuple<_UElements...>&&): Use _TNTC.
	* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: New.

From-SVN: r228134
 2015-09-25 19:41:45 +03:00
Jonathan Wakely
9bc5028273 Leave moved-from std::deque in a valid state 
PR libstdc++/67707
	* include/bits/stl_deque.h (_Deque_base::_M_move_impl): Initialize
	empty object.
	* testsuite/23_containers/deque/allocator/move.cc: Check moved-from
	deque.

From-SVN: r228090
 2015-09-24 16:46:24 +01:00
Jonathan Wakely
429ee11aa3 Fix semantics of Filesystem TS directory iterators 
[class.directory_iterator] p4 and [directory_iterator.members] p4
require that only the default constructor and ignored permission denied
errors can create the end iterator.

	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Remove _GLIBCXX_
	prefix from HAVE_STRUCT_DIRENT_D_TYPE.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* include/experimental/fs_dir.h (operator==, operator==):
	Use owner_before instead of pointer equality.
	(directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove.
	* src/filesystem/dir.cc (ErrorCode): Remove.
	(_Dir::advance): Change ErrorCode parameter to error_code*, add
	directory_options parameter and check it on error.
	(opendir): Rename to open_dir to avoid clashing with macro. Change
	ErrorCode parameter to error_code*.
	(make_shared_dir): Remove.
	(native_readdir) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Don't set errno.
	(directory_iterator(std::shared_ptr<_Dir>, error_code*)): Remove.
	(directory_iterator(const path&, directory_options, error_code*)):
	Pass options to _Dir::advance and create non-end iterator on error.
	(recursive_directory_iterator(const path&, directory_options,
	error_code*)): Clear error_code on ignored error, create non-end
	iterator otherwise.
	(recursive_directory_iterator::increment): Pass _M_options to
	_Dir::advance.
	(recursive_directory_iterator::pop): Likewise.
	* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
	New.
	* testsuite/experimental/filesystem/iterators/
	recursive_directory_iterator.cc: New.

From-SVN: r228042
 2015-09-23 12:26:45 +01:00
Jonathan Wakely
561cfdec25 Fix bootstrap error introduced in r227870 
PR libstdc++/67647
	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::shrink_to_fit): Fix #endif placement.

From-SVN: r227966
 2015-09-21 12:44:08 +01:00
Tim Shen
236d76c4a9 re PR libstdc++/67361 (std::regex_error::what() should say something about the error_code) 
PR libstdc++/67361
	* include/bits/regex_error.h: Add __throw_regex_error that
	supports string.
	* include/bits/regex_automaton.h: Add more specific exception
	messages.
	* include/bits/regex_automaton.tcc: Likewise.
	* include/bits/regex_compiler.h: Likewise.
	* include/bits/regex_compiler.tcc: Likewise.
	* include/bits/regex_scanner.h: Likewise.
	* include/bits/regex_scanner.tcc: Likewise.

From-SVN: r227936
 2015-09-19 20:56:27 +00:00
Jonathan Wakely
7215aaedd6 Fix errors due to extra includes in extc++.h 
* include/precompiled/extc++.h: Fix bootstrap error due to
	unconditional inclusion of <ext/enc_filebuf.h>.
	* include/ext/random: Check for definition of UINT32_C.

From-SVN: r227902
 2015-09-18 12:21:05 +01:00
François Dumont
814e52ca21 2015-09-17 François Dumont <fdumont@gcc.gnu.org> 
* include/debug/formatter.h
	(_Error_formatter::_Parameter::_M_print_field): Deprecate.
	(_Error_formatter::_Parameter::_M_print_description): Likewise.
	(_Error_formatter::_M_format_word): Likewise.
	(_Error_formatter::_M_print_word): Likewise.
	(_Error_formatter::_M_print_string): Likewise.
	(_Error_formatter::_M_get_max_length): Likewise.
	(_Error_formatter::_M_max_length): Delete.
	(_Error_formatter::_M_indent): Likewise.
	(_Error_formatter::_M_column): Likewise.
	(_Error_formatter::_M_first_line): Likewise.
	(_Error_formatter::_M_wordwrap): Likewise.
	* src/c++11/debug.cc: Adapt.

From-SVN: r227885
 2015-09-17 19:23:26 +00:00