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9758 Commits

Author SHA1 Message Date
Jonathan Wakely
957221f551 PR libstdc++/80506 fix constant used in condition 
PR libstdc++/80506
	* include/bits/random.tcc (gamma_distribution::operator()): Fix magic
	number used in loop condition.

From-SVN: r247099
 2017-04-24 14:43:19 +01:00
Jonathan Wakely
6e2e575a03 PR libstdc++/80504 qualify calls to avoid ADL 
PR libstdc++/80504
	* include/bits/refwrap.h (ref, cref): Qualify calls.
	* testsuite/20_util/reference_wrapper/80504.cc: New test.

From-SVN: r247094
 2017-04-24 12:40:07 +01:00
Jonathan Wakely
71f257f78e PR libstdc++/80493 fix invalid exception specification 
PR libstdc++/80493
	* include/experimental/optional (optional::swap): Fix exception
	specification.

From-SVN: r247093
 2017-04-24 12:40:02 +01:00
Jonathan Wakely
946ecd6ab2 PR libstdc++/80316 make promise::set_value throw no_state error 
PR libstdc++/80316
	* include/std/future (_State_baseV2::_Setter::operator()): Remove
	_S_check calls that are done after the pointer to the shared state is
	already dereferenced.
	(_State_baseV2::_Setter<_Res, void>): Define specialization for void
	as partial specialization so it can be defined within the definition
	of _State_baseV2.
	(_State_baseV2::__setter): Call _S_check.
	(_State_baseV2::__setter(promise<void>*)): Add overload for use by
	promise<void>::set_value and promise<void>::set_value_at_thread_exit.
	(promise<T>, promise<T&>, promise<void>): Make _State a friend.
	(_State_baseV2::_Setter<void, void>): Remove explicit specialization.
	(promise<void>::set_value, promise<void>::set_value_at_thread_exit):
	Use new __setter overload.
	* testsuite/30_threads/promise/members/at_thread_exit2.cc: New test.
	* testsuite/30_threads/promise/members/set_exception.cc: Test
	promise<T&> and promise<void> specializations.
	* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
	Test for no_state error condition.
	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.

From-SVN: r247064
 2017-04-21 15:49:19 +01:00
Jonathan Wakely
a2c0a1942c Avoid deprecated warnings about std::auto_ptr in library headers 
* include/backward/auto_ptr.h: Ignore deprecated warnings from use
	of auto_ptr.
	* include/bits/shared_ptr.h: Likewise.
	* include/bits/shared_ptr_base.h: Likewise.
	* include/bits/unique_ptr.h: Likewise.
	* libstdc++-v3/testsuite/20_util/default_delete/48631_neg.cc: Adjust
	dg-error lineno.
	* libstdc++-v3/testsuite/20_util/default_delete/void_neg.cc: Likewise.
	* libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc:
	Likewise.
	* libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc:
	Likewise.

From-SVN: r247063
 2017-04-21 14:08:51 +01:00
Edward Smith-Rowland
4ba07ed462 PR libstdc++/68397 std::tr1::expint fails ... long double arguments. 
2017-04-20  Edward Smith-Rowland  <3dw4rd@verizon.net>

	PR libstdc++/68397 std::tr1::expint fails ... long double arguments.
	* include/tr1/exp_integral.tcc: Increase iteration limits.
	* testsuite/tr1/5_numerical_facilities/special_functions/15_expint/
	pr68397.cc: New test.
	* testsuite/special_functions/14_expint/pr68397.cc: New test.

From-SVN: r247027
 2017-04-20 15:41:59 +00:00
Jonathan Wakely
1b36f6036e PR79862 check macro for type aliases that depend on <stdint.h> 
PR libstdc++/79862
	* include/std/atomic [!_GLIBCXX_USE_C99_STDINT_TR1] (atomic_int8_t)
	(atomic_uint8_t, atomic_int16_t, atomic_uint16_t, atomic_int32_t,
	(atomic_uint32_t, atomic_int64_t, atomic_uint64_t)
	(atomic_int_least8_t, atomic_uint_least8_t, atomic_int_least16_t)
	(atomic_uint_least16_t, atomic_int_least32_t, atomic_uint_least32_t)
	(atomic_int_least64_t, atomic_uint_least64_t, atomic_int_fast8_t)
	(atomic_uint_fast8_t, atomic_int_fast16_t, atomic_uint_fast16_t)
	(atomic_int_fast32_t, atomic_uint_fast32_t, atomic_int_fast64_t)
	(atomic_uint_fast64_t, atomic_intmax_t, atomic_uintmax_t): Don't
	define.

From-SVN: r247021
 2017-04-20 14:04:28 +01:00
Jonathan Wakely
db7ab54fbf Rationalise ABI links in libstdc++ manual 
* doc/xml/manual/abi.xml: Rephrase one of the references to the
	Itanium C++ ABI.
	* doc/xml/manual/test.xml: Document DejaGnu 1.5.3 requirement.
	* doc/html/*: Regenerate.

From-SVN: r247003
 2017-04-19 17:49:21 +01:00
Jonathan Wakely
6a8446fa8b * libsupc++/new: Update comment on #endif directive. 
From-SVN: r246999
 2017-04-19 16:18:24 +01:00
Jonathan Wakely
6cff9199c1 PR libstdc++/80448 remove noexcept from defaulted functions 
PR libstdc++/80448
	* include/experimental/bits/fs_dir.h (directory_iterator)
	(recursive_directory_iterator): Remove noexcept from defaulted
	constructors.

From-SVN: r246993
 2017-04-19 12:03:43 +01:00
Jonathan Wakely
afa56c1751 PR libstdc++/80446 cope with libc defining __has_builtin 
PR libstdc++/80446
	* include/std/type_traits (is_aggregate): Change __has_builtin checks.
	* libsupc++/new (launder): Likewise.

From-SVN: r246992
 2017-04-19 11:49:12 +01:00
Jonathan Wakely
38d68cf0f5 Fix incorrect results from std::boyer_moore_searcher 
* include/std/functional (default_searcher, __boyer_moore_array_base)
	(__is_std_equal_to, __boyer_moore_base_t, boyer_moore_searcher)
	(boyer_moore_horspool_searcher): Remove redundant namespace
	qualification.
	(default_searcher::operator()): Construct return value early and
	advance second member in-place.
	(boyer_moore_horspool_searcher::operator()): Increment random access
	iterator directly instead of using std::next.
	(boyer_moore_searcher::operator()): Fix return value.
	* testsuite/20_util/function_objects/searchers.cc: Check both parts
	of return values.

From-SVN: r246964
 2017-04-18 12:08:00 +01:00
Gerald Pfeifer
5ee26fce81 faq.xml: Update reference link to C++ ABI for Itanium. 
* doc/xml/faq.xml: Update reference link to C++ ABI for Itanium.
	* doc/xml/manual/abi.xml. Ditto (thrice).

From-SVN: r246860
 2017-04-11 22:36:40 +00:00
Jonathan Wakely
b0dfb235e8 Remove duplicated entry in C++17 library status table 
* doc/xml/manual/status_cxx2017.xml: Remove duplicate table entry.
	* doc/html/*: Regenerate.

From-SVN: r246661
 2017-04-03 19:58:32 +01:00
Jonathan Wakely
b1e282ca18 Uncomment std::reference_wrapper tests that no longer fail 
* testsuite/20_util/reference_wrapper/invoke.cc: Uncomment tests
	that no longer fail.

From-SVN: r246658
 2017-04-03 18:16:11 +01:00
Jonathan Wakely
59c06f4d56 Fix comments in libstdc++ header and test 
* include/bits/ios_base.h: Correct comment.
	* testsuite/util/testsuite_hooks.h: Likewise.

From-SVN: r246657
 2017-04-03 18:16:06 +01:00
Jonathan Wakely
9d83c64b16 Update C++17 library status table in manual 
* doc/xml/manual/status_cxx2017.xml: Update C++17 status table.
	* doc/xml/manual/appendix_contributing.xml (contrib.organization): Add
	directories for debug, parallel and profile headers.
	* doc/html/*: Regenerate.

From-SVN: r246656
 2017-04-03 18:16:01 +01:00
Jonathan Wakely
8c3b5c719f Implement P0426R1 "Constexpr for std::char_traits" for C++17 (partial) 
* include/bits/char_traits.h (__gnu_cxx::char_traits): Add
	_GLIBCXX14_CONSTEXPR on assign, compare, find, and length.
	(std::char_traits<char>, std::char_traits<wchar_t>): Add
	_GLIBCXX17_CONSTEXPR on assign.
	(std::char_traits<char16_t>, std::char_traits<char32_t>): Add
	_GLIBCXX17_CONSTEXPR on assign, compare, find, and length.
	* testsuite/21_strings/char_traits/requirements/
	constexpr_functions_c++17.cc: New test.

From-SVN: r246655
 2017-04-03 18:15:53 +01:00
Ville Voutilainen
c1e2889a32 re PR libstdc++/79141 (std::pair<int,int> p = {}; fails to compile due to ambiguous overload) 
PR libstdc++/79141
* include/bits/stl_pair.h (__nonesuch_no_braces): New.
(operator=(typename conditional<
__and_<is_copy_assignable<_T1>,
is_copy_assignable<_T2>>::value,
const pair&, const __nonesuch&>::type)): Change __nonesuch
to __nonesuch_no_braces.
(operator=(typename conditional<
__not_<__and_<is_copy_assignable<_T1>,
is_copy_assignable<_T2>>>::value,
const pair&, const __nonesuch&>::type)): Likewise.
(operator=(typename conditional<
__and_<is_move_assignable<_T1>,
is_move_assignable<_T2>>::value,
pair&&, __nonesuch&&>::type)): Likewise.
* testsuite/20_util/pair/79141.cc: New.

From-SVN: r246653
 2017-04-03 19:30:58 +03:00
Ville Voutilainen
e2ac6765db Implement std::is_aggregate. 
* include/std/type_traits (is_aggregate, is_aggregate_v): New.
* testsuite/20_util/is_aggregate/requirements/explicit_instantiation.cc:
New.
* testsuite/20_util/is_aggregate/requirements/typedefs.cc: Likewise.
* testsuite/20_util/is_aggregate/value.cc: Likewise.

From-SVN: r246651
 2017-04-03 18:57:06 +03:00
Ville Voutilainen
0000fd8cfd Adjust optional's pretty printer for LWG 2900. 
* python/libstdcxx/v6/printers.py (StdExpOptionalPrinter.__init__):
Look at the nested payload in case of non-experimental optional.

From-SVN: r246566
 2017-03-29 15:05:50 +03:00
Ville Voutilainen
250f5b6cc1 Implement LWG 2900, The copy and move constructors of optional are not constexpr. 
Implement LWG 2900, The copy and move constructors
of optional are not constexpr.
* include/std/optional (_Optional_payload): New.
(_Optional_base): Remove the bool parameter.
(_Optional_base<_Tp, false>): Remove.
(_Optional_base()): Adjust.
(_Optional_base(nullopt_t)): Likewise.
(_Optional_base(in_place_t, _Args&&...)): Likewise.
(_Optional_base(in_place_t, initializer_list<_Up>, _Args&&...)):
Likewise.
(_Optional_base(const _Optional_base&)): Likewise.
(_Optional_base(_Optional_base&&)): Likewise.
(operator=(const _Optional_base&)): Likewise.
(operator=(_Optional_base&&)): Likewise.
(~_Optional_base()): Remove.
(_M_is_engaged()): Adjust.
(_M_get()): Likewise.
(_M_construct(_Args&&...)): Likewise.
(_M_destruct()): Likewise.
(_M_reset()): Likewise.
(_Optional_base::_Empty_byte): Remove.
(_Optional_base::_M_empty): Remove.
(_Optional_base::_M_payload): Adjust.
* testsuite/20_util/optional/cons/value_neg.cc: Adjust.
* testsuite/20_util/optional/constexpr/cons/value.cc: Add tests.

From-SVN: r246556
 2017-03-29 02:05:21 +03:00
Jonathan Wakely
92d85953a5 PR libstdc++/80137 use std::nextafter instead of looping 
PR libstdc++/80137
	* include/bits/random.tcc (generate_canonical): Use std::nextafter
	or numeric_limits::epsilon() to reduce out-of-range values.
	* testsuite/26_numerics/random/uniform_real_distribution/operators/
	64351.cc: Verify complexity requirement is met.

From-SVN: r246542
 2017-03-28 17:09:49 +01:00
Jonathan Wakely
a138d52a9b Add _GLIBCXX_RELEASE macro to "Using" section of manual 
* doc/xml/manual/abi.xml: Add xml:id anchor.
	* doc/xml/manual/using.xml (manual.intro.using.macros): Document
	_GLIBCXX_RELEASE. Link to new anchor for __GLIBCXX__ notes.
	(concurrency.io.structure): Add markup.
	* doc/html/*: Regenerate.

From-SVN: r246532
 2017-03-28 13:43:06 +01:00
Jonathan Wakely
b1bd915843 PR libstdc++/80229 restore support for shared_ptr<function type> 
PR libstdc++/80229
	* include/bits/shared_ptr_base.h
	(__shared_ptr::_M_enable_shared_from_this_with): Change parameters to
	non-const and then use remove_cv to get unqualified type.
	* testsuite/20_util/enable_shared_from_this/members/const.cc: Don't
	cast away constness on object created const.
	* testsuite/20_util/shared_ptr/cons/80229.cc: New test.

From-SVN: r246520
 2017-03-28 08:35:04 +01:00
Markus Trippelsdorf
4f28d159c5 Fix PR80183 : _M_color not moved 
PR libstdc++/80183
	* include/bits/stl_tree.h:
	(_Rb_tree_header::_M_move_data(_Rb_tree_header&)): Also save _M_color.

From-SVN: r246483
 2017-03-26 12:33:35 +00:00
Jonathan Wakely
01e3c2296a Fix Debug Mode test failures 
* testsuite/23_containers/array/tuple_interface/
	tuple_element_debug_neg.cc: Adjust dg-error.
	* testsuite/23_containers/list/operations/78389.cc: Fix less-than to
	define a valid strict weak ordering.
	* testsuite/23_containers/priority_queue/67085.cc: Disable test for
	Debug Mode, due to debug checks making extra copies of predicate.
	* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
	Likewise.

From-SVN: r246426
 2017-03-23 19:40:41 +00:00
Jonathan Wakely
393ed575c4 Fix broken links in manual and remove outdated info 
* doc/xml/faq.xml: Add link.
	* doc/xml/manual/backwards_compatibility.xml: Remove outdated
	information on pre-ISO headers. Replace broken link to C++ FAQ Lite.
	* doc/xml/manual/io.xml: Update broken link.
	* doc/html/*: Regenerate.

From-SVN: r246425
 2017-03-23 19:40:21 +00:00
Daniel Kruegler
7f359d19d0 Implement LWG 2686, std::hash<error_condition>, for C++17 
2017-03-23  Daniel Kruegler  <daniel.kruegler@gmail.com>

	Implement LWG 2686, Why is std::hash specialized for error_code,
	but not error_condition?
	* include/std/system_error (hash<error_condition>): Define for C++17.
	* testsuite/20_util/hash/operators/size_t.cc (hash<error_condition>):
	Instantiate test for error_condition.
	* testsuite/20_util/hash/requirements/explicit_instantiation.cc
	(hash<error_condition>): Instantiate hash<error_condition>.

From-SVN: r246424
 2017-03-23 19:40:16 +00:00
Daniel Kruegler
288695f7a4 Implement P0607R0 "Inline Variables for Standard Library" for C++17 
2017-03-23  Daniel Kruegler  <daniel.kruegler@gmail.com>

	* include/bits/c++config (_GLIBCXX17_INLINE): Define.
	* include/bits/regex_constants.h (All std::regex_constants constants):
	Add _GLIBCXX17_INLINE as per P0607R0.
	* include/bits/std_mutex.h (defer_lock, try_to_lock, adopt_lock):
	Likewise.
	* include/bits/stl_pair.h (piecewise_construct): Likewise.
	* include/bits/uses_allocator.h (allocator_arg, uses_allocator_v)
	(__is_uses_allocator_constructible_v)
	(__is_nothrow_uses_allocator_constructible_v): Likewise.
	* include/std/chrono (treat_as_floating_point_v): Likewise.
	* include/std/functional (is_bind_expression_v, is_placeholder_v):
	Likewise.
	* include/std/optional (nullopt): Likewise.
	* include/std/ratio (ratio_equal_v, ratio_not_equal_v, ratio_less_v)
	ratio_less_equal_v, ratio_greater_v, ratio_greater_equal_v): Likewise.
	* include/std/system_error (is_error_code_enum_v)
	(is_error_condition_enum_v): Likewise.
	* include/std/tuple (tuple_size_v, ignore): Likewise.
	(ignore): Declare ignore constexpr as per LWG 2773, declare assignment
	constexpr as per LWG 2933.
	* include/std/type_traits (All variable templates): Add
	_GLIBCXX17_INLINE as per P0607R0.
	* include/std/variant (variant_size_v, variant_npos, __index_of_v)
	(__tuple_count_v, __exactly_once): Likewise.
	* testsuite/18_support/headers/new/synopsis.cc
	(hardware_destructive_interference_size)
	(hardware_constructive_interference_size): Likewise for commented-out
	variables.
	* testsuite/20_util/tuple/creation_functions/constexpr.cc: Add new
	test function for constexpr std::ignore (LWG 2773).
	* testsuite/20_util/tuple/creation_functions/constexpr_cpp14.cc: New
	test for LWG 2933.

From-SVN: r246423
 2017-03-23 19:40:07 +00:00
Jonathan Wakely
af181c91a9 Add deduction guides for C++17 (P0433R2, partial) 
* include/bits/shared_ptr.h (shared_ptr, weak_ptr): Add deduction
	guides for C++17.
	* include/bits/std_function.h (function): Likewise.
	* include/bits/stl_pair.h (pair): Likewise.
	* include/debug/array (__gnu_debug::array): Likewise.
	* include/std/array (array): Likewise.
	* include/std/functional (make_default_searcher)
	(make_boyer_moore_searcher, make_boyer_moore_horspool_searcher):
	Remove generator functions.
	* include/std/tuple (tuple): Add deduction guides.
	* include/std/valarray (valarray): Likewise.
	* testsuite/20_util/function_objects/searchers.cc: Adjust to use
	class template argument deduction instead of generator functions.
	* testsuite/20_util/function/cons/deduction.cc: New test.
	* testsuite/20_util/optional/cons/deduction_guide.cc: Rename to ...
	* testsuite/20_util/optional/cons/deduction.cc: ... here.
	* testsuite/20_util/pair/cons/deduction.cc: New test.
	* testsuite/20_util/shared_ptr/cons/deduction.cc: New test.
	* testsuite/20_util/tuple/cons/deduction.cc: New test.
	* testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error.
	* testsuite/20_util/unique_ptr/cons/deduction_neg.cc: New test.
	* testsuite/20_util/weak_ptr/cons/deduction.cc: New test.
	* testsuite/23_containers/array/cons/deduction.cc: New test.
	* testsuite/23_containers/array/cons/deduction_neg.cc: New test.
	* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
	Adjust dg-error.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Likewise.
	* testsuite/26_numerics/valarray/deduction.cc: New test.
	* testsuite/30_threads/lock_guard/cons/deduction.cc: New test.
	* testsuite/30_threads/scoped_lock/cons/deduction.cc: New test.
	* testsuite/30_threads/unique_lock/cons/deduction.cc: New test.

From-SVN: r246389
 2017-03-22 15:58:35 +00:00
François Dumont
fe62dd045e stl_deque.h (deque): Access allocator value_type only if concept checks are enabled. 
2017-03-20  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/stl_deque.h (deque): Access allocator value_type only if
	concept checks are enabled.
	* include/bits/stl_stack.h (stack): Likewise.
	* include/bits/stl_vector.h (vector): Likewise.
	* include/bits/stl_list.h (list): Likewise and check
	_SGIAssignableConcept only in C++03.
	* include/bits/stl_map.h (map): Likewise.
	* include/bits/stl_set.h (set): Likewise.
	* include/bits/stl_multimap.h (multimap): Likewise.
	* include/bits/stl_multiset.h (multiset): Likewise.
	* include/bits/stl_queue.h (queue, priority_queue): Likewise.

From-SVN: r246294
 2017-03-20 20:51:40 +00:00
Gerald Pfeifer
e76659d189 appendix_contributing.xml: Convert link to ansi.org to https. 
* doc/xml/manual/appendix_contributing.xml: Convert link to
	ansi.org to https.
	Update link to the C++ standard at ansi.org.

	* doc/xml/faq.xml: Remove information redundant with the above;
	instead add a reference.

From-SVN: r246259
 2017-03-18 18:39:54 +00:00
Jonathan Wakely
d951e75dfe Fix alignment bugs in std::codecvt_utf16 
* src/c++11/codecvt.cc (range): Add non-type template parameter and
	define oerloaded operators for reading and writing code units.
	(range<Elem, false>): Define partial specialization for accessing
	wide characters in potentially unaligned byte ranges.
	(ucs2_span(const char16_t*, const char16_t*, ...))
	(ucs4_span(const char16_t*, const char16_t*, ...)): Change parameters
	to range<const char16_t, false> in order to avoid unaligned reads.
	(__codecvt_utf16_base<char16_t>::do_out)
	(__codecvt_utf16_base<char32_t>::do_out)
	(__codecvt_utf16_base<wchar_t>::do_out): Use range specialization for
	unaligned data to avoid unaligned writes.
	(__codecvt_utf16_base<char16_t>::do_in)
	(__codecvt_utf16_base<char32_t>::do_in)
	(__codecvt_utf16_base<wchar_t>::do_in): Likewise for writes. Return
	error if there are unprocessable trailing bytes.
	(__codecvt_utf16_base<char16_t>::do_length)
	(__codecvt_utf16_base<char32_t>::do_length)
	(__codecvt_utf16_base<wchar_t>::do_length): Pass arguments of type
	range<const char16_t, false> to span functions.
	* testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc: New test.

From-SVN: r246245
 2017-03-17 19:28:05 +00:00
Jonathan Wakely
e363c939cb PR libstdc++/79980 fix target type of cast 
PR libstdc++/79980
	* src/c++11/codecvt.cc (to_integer(codecvt_mode)): Fix target type.

From-SVN: r246205
 2017-03-16 17:22:47 +00:00
Jonathan Wakely
a4c687d64b PR libstdc++/80041 fix codecvt_utf16<wchar_t> to use UTF-16 not UTF-8 
PR libstdc++/80041
	* src/c++11/codecvt.cc (__codecvt_utf16_base<wchar_t>::do_out)
	(__codecvt_utf16_base<wchar_t>::do_in): Convert char arguments to
	char16_t to work with UTF-16 instead of UTF-8.
	* testsuite/22_locale/codecvt/codecvt_utf16/80041.cc: New test.

From-SVN: r246202
 2017-03-16 15:28:02 +00:00
Jonathan Wakely
516231de73 Fix encoding() and max_length() values for codecvt facets 
* src/c++11/codecvt.cc (codecvt<char16_t, char, mbstate_t>)
	(codecvt<char32_t, char, mbstate_t>, __codecvt_utf8_base<char16_t>)
	(__codecvt_utf8_base<char32_t>, __codecvt_utf8_base<wchar_t>)
	(__codecvt_utf16_base<char16_t>, __codecvt_utf16_base<char32_t>)
	(__codecvt_utf16_base<wchar_t>, __codecvt_utf8_utf16_base<char16_t>)
	(__codecvt_utf8_utf16_base<char32_t>)
	(__codecvt_utf8_utf16_base<wchar_t>): Fix do_encoding() and
	do_max_length() return values.
	* testsuite/22_locale/codecvt/codecvt_utf16/members.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8/members.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc: New test.

From-SVN: r246201
 2017-03-16 15:27:57 +00:00
Jonathan Wakely
bcd682e1fa PR libstdc++/79980 fix BOM detection, maxcode checks, UCS2 handling 
PR libstdc++/79980
	* include/bits/locale_conv.h (__do_str_codecvt): Set __count on
	error path.
	* src/c++11/codecvt.cc (operator&=, operator|=, operator~): Overloads
	for manipulating codecvt_mode values.
	(read_utf16_bom): Compare input to BOM constants instead of integral
	constants that depend on endianness.  Take mode parameter by
	reference and adjust it, to distinguish between no BOM present and
	UTF-16BE BOM present.
	(ucs4_in, ucs2_span, ucs4_span): Adjust calls to read_utf16_bom.
	(surrogates): New enumeration type.
	(utf16_in, utf16_out): Add surrogates parameter to choose between
	UTF-16 and UCS2 behaviour.
	(utf16_span, ucs2_span): Use std::min not std::max.
	(ucs2_out): Use std::min not std::max.  Disallow surrogate pairs.
	(ucs2_in): Likewise. Adjust calls to read_utf16_bom.
	* testsuite/22_locale/codecvt/codecvt_utf16/79980.cc: New test.
	* testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: New test.

From-SVN: r246200
 2017-03-16 15:27:51 +00:00
Jonathan Wakely
02e12bda2d PR libstdc++/79511 fix endianness of UTF-16 data 
PR libstdc++/79511
	* src/c++11/codecvt.cc (write_utf16_code_point): Don't write 0xffff
	as a surrogate pair.
	(__codecvt_utf8_utf16_base<char32_t>::do_in): Use native endianness
	for internal representation.
	(__codecvt_utf8_utf16_base<wchar_t>::do_in): Likewise.
	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc: New test.

From-SVN: r246199
 2017-03-16 15:27:45 +00:00
Jonathan Wakely
8d85abab44 PR libstdc++/80064 make heap algorithms work with function types 
PR libstdc++/80064
	* include/bits/stl_heap.h (__is_heap, push_heap, __adjust_heap)
	(pop_heap, make_heap, sort_heap, is_heap_until, is_heap): Cope with
	invalid instantiations using function types for _Compare argument.
	* testsuite/25_algorithms/make_heap/80064.cc: New test.

From-SVN: r246197
 2017-03-16 14:32:07 +00:00
Jonathan Wakely
7acc534977 PR libstdc++/67440 make pretty printers work with GDB 7.6 again 
PR libstdc++/67440
	* python/libstdcxx/v6/printers.py (find_type): Avoid gdb.Type.name
	for GDB 7.6 compatibility, use gdb.Type.unqualified instead.

From-SVN: r246196
 2017-03-16 14:11:48 +00:00
Jonathan Wakely
1c4df66b56 Fix typo and replace non-breaking spaces in libstdc++-v3/ChangeLog 
From-SVN: r246191
 2017-03-16 12:18:14 +00:00
Ville Voutilainen
df99018275 Implement LWG 2857, {variant,optional,any}::emplace should return the constructed value. 
Implement LWG 2857, {variant,optional,any}::emplace should
return the constructed value.
* include/std/any (emplace(_Args&&...)): Change the return type and
return a reference to the constructed value.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/optional (emplace(_Args&&...)): Likewise.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/variant (emplace<_Tp>(_Args&&...)): Likewise.
(emplace<_Tp>(initializer_list<_Up>, _Args&&...)): Likewise.
(emplace<_Np>(_Args&&...)): Likewise.
(emplace<_Np>(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/20_util/any/assign/emplace.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
* testsuite/20_util/optional/assignment/6.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/variant/run.cc: Likewise.

From-SVN: r246182
 2017-03-16 01:13:20 +02:00
Jonathan Wakely
75d359f759 PR libstdc++/62045 fix O(N) insertion in pd_ds binary heap 
2017-03-15  Xi Ruoyao  <ryxi@stu.xidian.edu.cn>

	PR libstdc++/62045
	* include/ext/pb_ds/qdetail/binary_heap_/binary_heap_.hpp
	(is_heap): Remove.
	(push_heap): Remove the wrong checking using is_heap.
	(make_heap): Remove the assertion using is_heap.
	* include/ext/pb_ds/detail/binary_heap_/insert_fn_imps.hpp
	(modify): Ditto.
	(resize_for_insert_if_needed): Add PB_DS_ASSERT_VALID after
	calling make_heap.

2017-03-15  Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/62045
	* testsuite/ext/pb_ds/regression/priority_queue_binary_heap-62045.cc:
	New test.
	* testsuite/ext/pb_ds/regression/priority_queues.cc: Fix copy&paste
	error in comment.

From-SVN: r246173
 2017-03-15 20:11:48 +00:00
Jonathan Wakely
64e1a55de1 Fix typo in config.h.in comment 
* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in
	comment.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.

From-SVN: r246165
 2017-03-15 15:23:44 +00:00
Jonathan Wakely
4f83482f46 PR libstdc++/79162 disambiguate assignment from string_view 
PR libstdc++/79162
	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
	(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Replace
	with a constrained template.
	[!_GLIBCXX_USE_CXX11_ABI]
	(basic_string<C,T,A>::operator=(basic_string_view<C,T>)): Likewise.
	* testsuite/21_strings/basic_string/cons/char/79162.cc: New test.
	* testsuite/21_strings/basic_string/cons/wchar_t/79162.cc: New test.

From-SVN: r246128
 2017-03-14 14:51:19 +00:00
Ville Voutilainen
648c989484 re PR libstdc++/80034 (unqualified calls to std::distance in std::list::sort) 
PR libstdc++/80034
* include/bits/list.tcc (merge(list&&)): Use const for the size_t
in the catch-block.
(merge(list&&, _StrictWeakOrdering)): Likewise.
* testsuite/23_containers/list/operations/80034.cc: New.

From-SVN: r246107
 2017-03-13 21:41:50 +02:00
Ville Voutilainen
fd231ad75a Implement LWG 2806, Base class of bad_optional_access. 
* include/std/optional (bad_optional_access):
Derive from std::exception.
(bad_optional_access::bad_optional_access): Adjust.
(bad_optional_access::what): New.
(__throw_bad_optional_access(const char*)):
Remove the parameter and adjust calls.
* testsuite/20_util/optional/cons/value_neg.cc: Adjust.
* testsuite/20_util/optional/typedefs.cc: Likewise.

From-SVN: r246103
 2017-03-13 20:03:30 +02:00
Ville Voutilainen
06272afbd3 Implement LWG 2934, optional<const T> doesn't compare with T. 
* include/std/optional
(operator==(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator==(const optional<_Tp>&, const optional<_Up>&).
(operator!=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator!=(const optional<_Tp>&, const optional<_Up>&).
(operator<(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator<(const optional<_Tp>&, const optional<_Up>&.
(operator>(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator>(const optional<_Tp>&, const optional<_Up>&.
(operator<=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator<=(const optional<_Tp>&, const optional<_Up>&).
(operator>=(const optional<_Tp>&, const optional<_Tp>&)):
Turn into operator>=(const optional<_Tp>&, const optional<_Up>&).
(operator==(const optional<_Tp>&, const _Tp&)):
Turn into operator==(const optional<_Tp>&, const _Up&).
(operator==(const _Tp&, const optional<_Tp>&)):
Turn into operator==(const _Up&, const optional<_Tp>&).
(operator!=(const optional<_Tp>&, const _Tp&)):
Turn into operator!=(const optional<_Tp>&, const _Up&).
(operator!=(const _Tp&, const optional<_Tp>&)):
Turn into operator!=(const _Up&, const optional<_Tp>&).
(operator<(const optional<_Tp>&, const _Tp&)):
Turn into operator<(const optional<_Tp>&, const _Up&).
(operator<(const _Tp&, const optional<_Tp>&)):
Turn into operator<(const _Up&, const optional<_Tp>&).
(operator>(const optional<_Tp>&, const _Tp&)):
Turn into operator>(const optional<_Tp>&, const _Up&).
(operator>(const _Tp&, const optional<_Tp>&)):
Turn into operator>(const _Up&, const optional<_Tp>&).
(operator<=(const optional<_Tp>&, const _Tp&)):
Turn into operator<=(const optional<_Tp>&, const _Up&).
(operator<=(const _Tp&, const optional<_Tp>&)):
Turn into operator<=(const _Up&, const optional<_Tp>&).
(operator>=(const optional<_Tp>&, const _Tp&)):
Turn into operator>=(const optional<_Tp>&, const _Up&).
(operator>=(const _Tp&, const optional<_Tp>&)):
Turn into operator>=(const _Up&, const optional<_Tp>&).
* testsuite/20_util/optional/relops/7.cc: New.

From-SVN: r246076
 2017-03-12 12:32:31 +02:00
Jonathan Wakely
da0ced6eb8 Fix libstdc++ reserved names test to pass on AIX 
* testsuite/17_intro/names.cc: Undefine macros that clash with
	identifiers in AIX system headers.

From-SVN: r246037
 2017-03-10 15:29:49 +00:00