5874 Commits

Author SHA1 Message Date
Jonathan Wakely
e641ee437f Define std::endian for C++2a (P0463R1)
* include/std/type_traits (endian): Define new enumeration type.
	* testsuite/20_util/endian/1.cc: New test.

From-SVN: r254381
2017-11-03 15:45:49 +00:00
Jonathan Wakely
97695d99b0 Remove _Node_insert_return::get() member functions (P0508R0)
* include/bits/node_handle.h (_Node_insert_return::get): Remove, as
	per P0508R0.

From-SVN: r254368
2017-11-03 11:04:45 +00:00
Jonathan Wakely
97b99f9c77 Don't create broken symlink in libstdc++-v3/include/bits
* include/Makefile.am (stamp-bits-sup): Do not create broken symlink
	to stamp-bits.
	* include/Makefile.in: Regenerate.

From-SVN: r254229
2017-10-30 16:28:13 +00:00
Jonathan Wakely
0a6e98b78b Remove ios_mode::trunc from basic_ofstream openmode arguments
* include/std/fstream (basic_ifstream, basic_ofstream, basic_fstream):
	Remove outdated comments about calling c_str() to create a file stream
	from a std::string.
	(basic_ofstream::basic_ofstream, basic_ofstream::open): Remove
	redundant ios_mode::trunc bits from default arguments and comments.

From-SVN: r254226
2017-10-30 15:35:02 +00:00
Jonathan Wakely
02a2c6303f Minor header reorganization for unordered containers
* include/bits/hashtable_policy.h: Include <tuple>.
	* include/std/unordered_map: Only include <bits/stl_pair.h> instead
	of <utility> and <tuple>.
	* include/std/unordered_set: Likewise.

From-SVN: r254223
2017-10-30 14:54:28 +00:00
Ville Voutilainen
ccbbf8df05 Implement LWG 2485
* include/debug/array (get(const array<_Tp, _Nm>&&)): New.
* include/std/array (get(const array<_Tp, _Nm>&&)): Likewise.
* include/std/tuple (get(const tuple<_Elements...>&&)): Likewise.
(get(const tuple<_Types...>&&)): Likewise.
* include/std/utility
(__pair_get::__const_move_get(const std::pair<_Tp1, _Tp2>&&)):
Likewise.
(get(const std::pair<_Tp1, _Tp2>&&)): Likewise.
(get(const pair<_Tp, _Up>&&)): Likewise.
(get(const pair<_Up, _Tp>&&)): Likewise.
* testsuite/20_util/pair/astuple/get.cc: Add tests for
new overloads.
* testsuite/20_util/pair/astuple/get_by_type.cc: Likewise.
* testsuite/20_util/tuple/element_access/get2.cc: Likewise.
* testsuite/20_util/tuple/element_access/get2_by_type.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/get.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc:
Adjust.
* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
Likewise.

From-SVN: r254222
2017-10-30 16:31:04 +02:00
Jonathan Wakely
6c6705a904 Simplify _Node_insert_return to avoid including <tuple>
* include/bits/node_handle.h (_Node_insert_return::get): Avoid
	use of std::tie and std::get.

From-SVN: r254162
2017-10-27 18:49:36 +01:00
Jonathan Wakely
5880ce184a List headers in Makefile in alphabetical order
* include/Makefile.am: Put headers in alphabetical order.
	* include/Makefile.in: Regenerate.

From-SVN: r254161
2017-10-27 18:49:32 +01:00
Jonathan Wakely
29453a9ffd Remove noexcept from filesystem iterators and operations (LWG 3013, 3014)
* include/bits/fs_dir.h (directory_iterator): Remove noexcept from
	constructors and increment member (LWG 3013).
	(recursive_directory_iterator): Likewise.
	* include/bits/fs_ops.h (copy, copy_file, create_directories)
	(is_empty, remove_all): Remove noexcept (LWG 3013 and LWG 3014).
	* src/filesystem/std-dir.cc (directory_iterator::increment)
	(recursive_directory_iterator::increment): Remove noexcept.
	* src/filesystem/std-ops.cc (copy, copy_file, create_directories)
	(is_empty, remove_all): Remove noexcept

From-SVN: r254160
2017-10-27 18:49:29 +01:00
Jonathan Wakely
9a3effa411 Make filesystem::file_status default constructor non-explicit (LWG 2787)
* include/bits/fs_dir.h (file_status): Make default constructor
	non-explicit (LWG 2787).
	* testsuite/27_io/filesystem/file_status/1.cc: New test.
	* testsuite/experimental/filesystem/file_status/1.cc: New test.

From-SVN: r254159
2017-10-27 18:49:21 +01:00
Jonathan Wakely
d49f254a6c Provide filesystem::path overloads for file streams (LWG 2676, partial)
* include/std/fstream (basic_filebuf::_If_path): New SFINAE helper.
	(basic_filebuf::open<Path>(const Path&, const ios_base::openmode&))
	(basic_ifstream<Path>(const Path&, const ios_base::openmode&))
	(basic_ifstream::open<Path>(const Path&, const ios_base::openmode&))
	(basic_ofstream<Path>(const Path&, const ios_base::openmode&))
	(basic_ofstream::open<Path>(const Path&, const ios_base::openmode&))
	(basic_fstream<Path>(const Path&, const ios_base::openmode&))
	(basic_fstream::open<Path>(const Path&, const ios_base::openmode&)):
	New constructors and member functions.
	* testsuite/27_io/basic_filebuf/open/char/path.cc: New test.
	* testsuite/27_io/basic_fstream/cons/char/path.cc: New test.
	* testsuite/27_io/basic_fstream/open/char/path.cc: New test.
	* testsuite/27_io/basic_ifstream/cons/char/path.cc: New test.
	* testsuite/27_io/basic_ifstream/open/char/path.cc: New test.
	* testsuite/27_io/basic_ofstream/cons/char/path.cc: New test.
	* testsuite/27_io/basic_ofstream/open/char/path.cc: New test.

From-SVN: r254148
2017-10-27 13:39:01 +01:00
Jonathan Wakely
0348dd008a Define std::filesystem::path::format enum (P0430R2)
* include/bits/fs_path.h (path::format): Define new enumeration type.
	(path(string_type&&), path<Source>(const Source&))
	(path<InputIterator>(InputIterator, InputIterator))
	(path<Source>(const Source&, const locale&))
	(path<InputIterator>(InputIterator, InputIterator, const locale&)):
	Add format parameter.
	* testsuite/27_io/filesystem/path/construct/format.cc: New test.

From-SVN: r254144
2017-10-27 13:01:49 +01:00
Jonathan Wakely
d67be4437a Protect more algorithms from overloaded comma operators
* include/bits/stl_algo.h (__find_if_not_n, generate_n): Cast to void
	to ensure overloaded comma not used.
	* include/bits/stl_algobase.h (__fill_n_a, equal): Likewise.
	* include/bits/stl_uninitialized.h (__uninitialized_fill_n)
	(__uninitialized_fill_n_a, __uninitialized_default_n_1)
	(__uninitialized_default_n_a, __uninitialized_copy_n)
	(__uninitialized_copy_n_pair): Likewise
	* testsuite/20_util/specialized_algorithms/memory_management_tools/1.cc:
	Use test iterator wrappers with overloaded comma operator.
	* testsuite/25_algorithms/fill_n/1.cc: Likewise.
	* testsuite/25_algorithms/generate_n/1.cc: New test.
	* testsuite/25_algorithms/stable_partition/1.cc: New test.
	* testsuite/util/testsuite_iterators.h (operator,): Add deleted
	non-member comma operator with iterator wrappers as right operand.

From-SVN: r254128
2017-10-27 00:50:40 +01:00
Ville Voutilainen
957f5feacf Deduction guides for associative containers, debug mode deduction guide fixes.
* include/bits/stl_iterator.h (__iter_key_t)
(__iter_val_t, __iter_to_alloc_t): New.
* include/bits/stl_map.h: Add deduction guides.
* include/bits/stl_multimap.h: Likewise.
* include/bits/stl_multiset.h: Likewise.
* include/bits/stl_set.h: Likewise.
* include/bits/unordered_map.h: Likewise.
* include/bits/unordered_set.h: Likewise.
* include/debug/deque: Likewise.
* include/debug/forward_list: Likewise.
* include/debug/list: Likewise.
* include/debug/map.h: Likewise.
* include/debug/multimap.h: Likewise.
* include/debug/multiset.h: Likewise.
* include/debug/set.h: Likewise.
* include/debug/unordered_map: Likewise.
* include/debug/unordered_set: Likewise.
* include/debug/vector: Likewise.
* testsuite/23_containers/map/cons/deduction.cc: New.
* testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
* testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
* testsuite/23_containers/set/cons/deduction.cc: Likewise.
* testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
* testsuite/23_containers/unordered_multimap/cons/deduction.cc:
Likewise.
* testsuite/23_containers/unordered_multiset/cons/deduction.cc:
Likewise.
* testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.

From-SVN: r254113
2017-10-26 19:42:31 +03:00
Jonathan Wakely
30e0aed183 PR libstdc++/82716 avoid stupid -Wmismatched-tags warnings
PR libstdc++/82716
	* include/std/array (tuple_size, tuple_element): Change class-key
	from class to struct, to avoid annoying Clang warnings.

From-SVN: r254077
2017-10-25 14:55:56 +01:00
Jonathan Wakely
02e2a7d8ef Refactor std::basic_string_view members and add noexcept
* include/bits/string_view.tcc (find_first_of, find_last_of)
	(find_first_not_of, find_last_not_of): Add noexcept.
	* include/std/string_view (basic_string_view(const _CharT*))
	(basic_string_view(const _CharT*, size_type))
	(front, back, remove_prefix, remove_suffix, find, rfind)
	(find_first_of, find_first_not_of): Add noexcept.
	(at(size_type), _S_compare(size_type, size_type)): Replace conditional
	expressions with if statements.
	(copy(_CharT*, size_type, size_type), substr(size_type, size_type)):
	Use _M_check for length checks.
	(compare(basic_string_view)): Reformat.
	(_M_check(size_type, const char)): Add noexcept(false).
	(_M_limit(size_type, size_type)): Use noexcept not _GLIBCXX_NOEXCEPT.

From-SVN: r254044
2017-10-24 14:18:52 +01:00
Jonathan Wakely
6a19d2a2ee PR libstdc++/82685 add 'noexcept' to string_view literals
PR libstdc++/82685
	* include/experimental/string_view (operator""sv): Add noexcept.
	* include/std/string_view (operator""sv): Likewise.

From-SVN: r254041
2017-10-24 12:28:40 +01:00
Jonathan Wakely
641cb5a675 Implement C++17 Filesystem library
Based on Filesystem TS implementation, with the changes applied by:

- P0219R1 Relative Paths for Filesystem
- P0317R1 Directory Entry Caching for Filesystem
- P0492R2 Resolution of C++17 National Body Comments

Where appropriate code is shared between the TS and C++17
implementations.

	* include/Makefile.am: Add new headers for C++17 filesystem library.
	* include/Makefile.in: Regenerate.
	* include/bits/fs_dir.h: New header, based on Filesystem TS code in
	include/experimental/bits directory.
	* include/bits/fs_fwd.h: Likewise.
	* include/bits/fs_ops.h: Likewise.
	* include/bits/fs_path.h: Likewise.
	* include/experimental/bits/fs_dir.h: Rename Doxygen group.
	* include/experimental/bits/fs_fwd.h: Likewise.
	* include/experimental/bits/fs_ops.h: Likewise.
	* include/experimental/bits/fs_path.h: Likewise.
	* include/experimental/filesystem (filesystem_error::_M_gen_what):
	Remove inline definition.
	* include/precompiled/stdc++.h: Add <filesystem> to precompiled
	header.
	* include/std/filesystem: New header.
	* python/libstdcxx/v6/printers.py: Enable printer for std::filesystem
	paths.
	* src/filesystem/Makefile.am: Add new files. Compile as C++17.
	* src/filesystem/Makefile.in: Regenerate.
	* src/filesystem/cow-dir.cc: Update comment.
	* src/filesystem/cow-ops.cc: Likewise.
	* src/filesystem/cow-path.cc: Likewise.
	* src/filesystem/cow-std-dir.cc: New file.
	* src/filesystem/cow-std-ops.cc: New file.
	* src/filesystem/cow-std-path.cc: New file.
	* src/filesystem/dir-common.h (_Dir_base, get_file_type): New header
	for common code.
	* src/filesystem/dir.cc (_Dir): Derive from _Dir_base.
	(open_dir): Move to _Dir_base constructor.
	(get_file_type): Move to dir-common.h.
	(recurse): Move to _Dir_base::should_recurse.
	* src/filesystem/ops-common.h: New header for common code.
	* src/filesystem/ops.cc (is_set, make_file_type, make_file_status)
	(is_not_found_errno, file_time, do_copy_file): Move to ops-common.h.
	* src/filesystem/path.cc (filesystem_error::_M_gen_what): Define.
	* src/filesystem/std-dir.cc: New file, based on Filesystem TS code.
	* src/filesystem/std-ops.cc: Likewise.
	* src/filesystem/std-dir.cc: Likewise.
	* testsuite/27_io/filesystem/iterators/directory_iterator.cc: New
	test.
	* testsuite/27_io/filesystem/iterators/pop.cc: New test.
	* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
	New test.
	* testsuite/27_io/filesystem/operations/absolute.cc: New test.
	* testsuite/27_io/filesystem/operations/canonical.cc: New test.
	* testsuite/27_io/filesystem/operations/copy.cc: New test.
	* testsuite/27_io/filesystem/operations/copy_file.cc: New test.
	* testsuite/27_io/filesystem/operations/create_directories.cc: New
	test.
	* testsuite/27_io/filesystem/operations/create_directory.cc: New test.
	* testsuite/27_io/filesystem/operations/create_symlink.cc: New test.
	* testsuite/27_io/filesystem/operations/current_path.cc: New test.
	* testsuite/27_io/filesystem/operations/equivalent.cc: New test.
	* testsuite/27_io/filesystem/operations/exists.cc: New test.
	* testsuite/27_io/filesystem/operations/file_size.cc: New test.
	* testsuite/27_io/filesystem/operations/is_empty.cc: New test.
	* testsuite/27_io/filesystem/operations/last_write_time.cc: New test.
	* testsuite/27_io/filesystem/operations/permissions.cc: New test.
	* testsuite/27_io/filesystem/operations/proximate.cc: New test.
	* testsuite/27_io/filesystem/operations/read_symlink.cc: New test.
	* testsuite/27_io/filesystem/operations/relative.cc: New test.
	* testsuite/27_io/filesystem/operations/remove_all.cc: New test.
	* testsuite/27_io/filesystem/operations/space.cc: New test.
	* testsuite/27_io/filesystem/operations/status.cc: New test.
	* testsuite/27_io/filesystem/operations/symlink_status.cc: New test.
	* testsuite/27_io/filesystem/operations/temp_directory_path.cc: New
	test.
	* testsuite/27_io/filesystem/operations/weakly_canonical.cc: New test.
	* testsuite/27_io/filesystem/path/append/path.cc: New test.
	* testsuite/27_io/filesystem/path/assign/assign.cc: New test.
	* testsuite/27_io/filesystem/path/assign/copy.cc: New test.
	* testsuite/27_io/filesystem/path/compare/compare.cc: New test.
	* testsuite/27_io/filesystem/path/compare/path.cc: New test.
	* testsuite/27_io/filesystem/path/compare/strings.cc: New test.
	* testsuite/27_io/filesystem/path/concat/path.cc: New test.
	* testsuite/27_io/filesystem/path/concat/strings.cc: New test.
	* testsuite/27_io/filesystem/path/construct/copy.cc: New test.
	* testsuite/27_io/filesystem/path/construct/default.cc: New test.
	* testsuite/27_io/filesystem/path/construct/locale.cc: New test.
	* testsuite/27_io/filesystem/path/construct/range.cc: New test.
	* testsuite/27_io/filesystem/path/construct/string_view.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/extension.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/filename.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/parent_path.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/relative_path.cc: New
	test.
	* testsuite/27_io/filesystem/path/decompose/root_directory.cc: New
	test.
	* testsuite/27_io/filesystem/path/decompose/root_name.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/root_path.cc: New test.
	* testsuite/27_io/filesystem/path/decompose/stem.cc: New test.
	* testsuite/27_io/filesystem/path/generation/normal.cc: New test.
	* testsuite/27_io/filesystem/path/generation/proximate.cc: New test.
	* testsuite/27_io/filesystem/path/generation/relative.cc: New test.
	* testsuite/27_io/filesystem/path/generic/generic_string.cc: New test.
	* testsuite/27_io/filesystem/path/itr/traversal.cc: New test.
	* testsuite/27_io/filesystem/path/modifiers/clear.cc: New test.
	* testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: New
	test.
	* testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: New
	test.
	* testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: New
	test.
	* testsuite/27_io/filesystem/path/modifiers/replace_filename.cc: New
	test.
	* testsuite/27_io/filesystem/path/modifiers/swap.cc: New test.
	* testsuite/27_io/filesystem/path/native/string.cc: New test.
	* testsuite/27_io/filesystem/path/nonmember/hash_value.cc: New test.
	* testsuite/27_io/filesystem/path/query/empty.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_extension.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_filename.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_parent_path.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_relative_path.cc: New
	test.
	* testsuite/27_io/filesystem/path/query/has_root_directory.cc: New
	test.
	* testsuite/27_io/filesystem/path/query/has_root_name.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_root_path.cc: New test.
	* testsuite/27_io/filesystem/path/query/has_stem.cc: New test.
	* testsuite/27_io/filesystem/path/query/is_relative.cc: New test.
	* testsuite/experimental/filesystem/path/construct/string_view.cc:
	Define USE_FILESYSTEM_TS.
	* testsuite/util/testsuite_fs.h: Allow use with C++17 paths as well
	as Filesystem TS.

From-SVN: r254008
2017-10-23 13:11:22 +01:00
Jonathan Wakely
908d1d3aea PR libstdc++/82644 document IS 29124 support
Also fix declarations of special functions in C++17, to import them into
the global namespace in <math.h>, and to prevent defining the
non-standard hypergeometric functions in strict mode.

	PR libstdc++/82644
	* doc/xml/manual/intro.xml: Include new section.
	* doc/xml/manual/status_cxxis29124.xml: New section on IS 29124
	status.
	* include/bits/specfun.h [__STRICT_ANSI__] (hyperg, hypergf, hypergl)
	(conf_hyperg, conf_hypergf, conf_hypergl): Don't declare.
	* include/c_compatibility/math.h: Import special functions into
	global namespace for C++17.
	* testsuite/26_numerics/headers/cmath/82644.cc: New test.
	* testsuite/26_numerics/headers/cmath/functions_global_c++17.cc: New
	test.

From-SVN: r254004
2017-10-23 12:10:28 +01:00
Jonathan Wakely
233fa165ad Update value of __cpp_lib_chrono feature-test macro
* include/std/chrono (__cpp_lib_chrono): Update macro value to
	indicate support for P0505R0.
	* testsuite/20_util/duration/arithmetic/constexpr_c++17.cc: Check
	for updated macro.

From-SVN: r253959
2017-10-20 22:05:11 +01:00
Jonathan Wakely
253e8d2150 Define __cpp_lib_byte feature-test macro
* include/c_global/cstddef: Define __cpp_lib_byte feature-test macro.
	* testsuite/18_support/byte/requirements.cc: Check macro.

From-SVN: r253952
2017-10-20 19:02:19 +01:00
Jonathan Wakely
551124d561 Fix path::iterator post-increment and post-decrement
* include/experimental/bits/fs_path.h (path::iterator++(int))
	(path::iterator--(int)): Fix for paths with only one component.
	* testsuite/experimental/filesystem/path/itr/traversal.cc: Test
	post-increment and post-decrement.

From-SVN: r253896
2017-10-19 14:57:06 +01:00
François Dumont
1be043a140 re PR libstdc++/82558 (V8 JavaScript engine segfaults since r249235)
2017-10-16  François Dumont  <fdumont@gcc.gnu.org>

	PR libstdc++/82558
	* include/bits/stl_bvector.h (fill): Add iterator offset check.
	* testsuite/23_containers/vector/bool/82558.cc: New.

From-SVN: r253776
2017-10-16 05:44:03 +00:00
Jonathan Wakely
3b0dd4fea2 PR libstdc++/82522 overload map insert functions for rvalues (LWG 2354)
PR libstdc++/82522
	* doc/xml/manual/intro.xml: Document LWG 2354 changes.
	* include/bits/stl_map.h (map::insert(value_type&&))
	(map::insert(const_iterator, value_type&&)): Add overload for rvalues.
	* include/bits/stl_multimap.h (multimap::insert(value_type&&))
	(multimap::insert(const_iterator, value_type&&)): Likewise.
	* include/bits/unordered_map.h (unordered_map::insert(value_type&&))
	(unordered_map::insert(const_iterator, value_type&&))
	(unordered_multimap::insert(value_type&&))
	(unordered_multimap::insert(const_iterator, value_type&&)): Likewise.
	* testsuite/23_containers/map/modifiers/insert/dr2354.cc: New test.
	* testsuite/23_containers/multimap/modifiers/insert/dr2354.cc: New
	test.
	* testsuite/23_containers/unordered_map/insert/dr2354.cc: New test.
	* testsuite/23_containers/unordered_multimap/insert/dr2354.cc: New
	test.

From-SVN: r253725
2017-10-13 13:39:32 +01:00
Jonathan Wakely
d1e85aa999 PR libstdc++/82481 Suppress clang-tidy warnings
PR libstdc++/82481
	* include/std/mutex (call_once): Suppress clang-tidy warnings about
	dangling references.

From-SVN: r253724
2017-10-13 13:39:24 +01:00
Jonathan Wakely
0e7300bb80 Update comment referring to status of LWG issue 111
* include/bits/streambuf_iterator.h (istreambuf_iterator::equal):
	Update comment about NAD issue.

From-SVN: r253582
2017-10-10 12:26:10 +01:00
Jonathan Wakely
5d2b807526 PR libstdc++/82417 do not include C99 <complex.h> in strict modes
As an extension the C++ version of <complex.h> includes the C version,
but that defines macros with non-reserved names that should not be
defined in ISO C++. Only include the C header for non-strict modes, or
for pre-C++11 (because C++98 doesn't mention <complex.h> at all).

	PR libstdc++/59087
	PR libstdc++/82417
	* include/c_compatibility/complex.h [!C++98 && __STRICT_ANSI__]: Do
	not include C library's <complex.h>.
	* testsuite/26_numerics/complex/c99.cc: Depend on __STRICT_ANSI__.
	* testsuite/26_numerics/headers/complex.h/std_c++11.h: New test.
	* testsuite/26_numerics/headers/complex.h/std_gnu++11.h: New test.
	* testsuite/26_numerics/headers/complex.h/std_c++98.h: New test.

From-SVN: r253581
2017-10-10 12:25:45 +01:00
Petr Ovtchenkov
4e91452412 2017-10-04 Petr Ovtchenkov <ptr@void-ptr.info>
François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/streambuf_iterator.h
	(istreambuf_iterator<>::operator*()): Do not capture iterator state
	in Debug assertion.
	(istreambuf_iterator<>::operator++()): Likewise and remove _M_sbuf check.
	(istreambuf_iterator<>::operator++(int)): Likewise.
	(istreambuf_iterator<>::_M_get()): Remove _M_c assignment.
	(istreambuf_iterator<>::_S_is_eof()): New.
	(istreambuf_iterator<>::_M_at_eof()): Adapt, use latter.
	(find(istreambuf_iterator<>, istreambuf_iterator<>, _CharT)):
	Return an iterator with _M_c set to eof to capture streambuf state
	on evaluation.
	(testsuite/24_iterators/istreambuf_iterator/2.cc): Add checks.

Co-Authored-By: François Dumont <fdumont@gcc.gnu.org>

From-SVN: r253417
2017-10-04 16:15:18 +00:00
Jakub Jelinek
9a741aee62 charconv (__unsigned_least_t): Fix number of closing >s for !_GLIBCXX_USE_INT128.
* include/std/charconv (__unsigned_least_t): Fix number of closing >s for
	!_GLIBCXX_USE_INT128.

From-SVN: r253371
2017-10-03 01:28:54 +02:00
Jonathan Wakely
804b7cc438 C++17 P0067R5 std::to_chars and std::from_chars (partial)
This adds the integral overloads of std::to_chars and std::from_chars,
including the changes made by P0682R0. Support for floating point types
is absent.

	* include/Makefile.am: Add new <charconv> header.
	* include/Makefile.in: Regenerate.
	* include/precompiled/stdc++.h: Include <charconv>.
	* include/std/charconv: New file.
	(to_chars_result, to_chars, from_chars_result, from_chars): Define.
	* testsuite/20_util/from_chars/1.cc: New test.
	* testsuite/20_util/from_chars/1_neg.cc: New test.
	* testsuite/20_util/from_chars/2.cc: New test.
	* testsuite/20_util/from_chars/requirements.cc: New test.
	* testsuite/20_util/to_chars/1.cc: New test.
	* testsuite/20_util/to_chars/1_neg.cc: New test.
	* testsuite/20_util/to_chars/2.cc: New test.
	* testsuite/20_util/to_chars/requirements.cc: New test.

From-SVN: r253353
2017-10-02 15:06:40 +01:00
Jonathan Wakely
9d2bac69bc PR libstdc++/79162 Fix std::string regression due to LWG 2946 (old ABI)
PR libstdc++/79162
	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
	(basic_string::_If_sv): Remove from the overload set when the
	argument is derived from basic_string.

From-SVN: r253035
2017-09-20 23:03:37 +01:00
Jonathan Wakely
4cf5930fdc PR libstdc++/79162 Fix std::string regression due to LWG 2946
PR libstdc++/79162
	* include/bits/basic_string.h (basic_string::_If_sv): Remove from the
	overload set when the argument is derived from basic_string.
	* testsuite/21_strings/basic_string/cons/char/moveable2_c++17.cc: New
	test.
	* testsuite/21_strings/basic_string/cons/wchar_t/moveable2_c++17.cc:
	New test.

From-SVN: r253024
2017-09-20 18:59:50 +01:00
Jonathan Wakely
f78958c9b4 Deprecate nested types in std::hash
* include/bits/c++config (_GLIBCXX17_DEPRECATED): Define.
	* include/bits/functional_hash.h (__hash_base::result_type)
	(__hash_base::argument_type): Add _GLIBCXX17_DEPRECATED.
	* include/std/optional (hash<optional<T>>::result_type)
	(hash<optional<T>>::argument_type): Add deprecated attribute.
	(__is_fast_hash<hash<optional<T>>>): Add partial specialization.
	* include/std/variant (hash<variant<Types...>>::result_type)
	(hash<variant<Types...>>::argument_type): Add deprecated attribute.
	(__is_fast_hash<hash<variant<Types...>>>): Add partial specialization.

From-SVN: r253017
2017-09-20 17:34:42 +01:00
Jonathan Wakely
f6b05c44aa PR libstdc++/82262 fix std::hash<std::optional<const T>>
PR libstdc++/82262
	* include/std/optional (__optional_hash_call_base): Add template
	parameter for remove_const_t<_Tp> and use it consistently.
	* testsuite/20_util/optional/hash.cc: Test optional<const T>.

From-SVN: r253010
2017-09-20 14:24:45 +01:00
Jonathan Wakely
23b49089a4 PR libstdc++/71500 restore C++11 compatibility in <regex>
PR libstdc++/71500
	* include/bits/regex_executor.tcc
	(_Backref_matcher<BidIt, regex_traits<C>>::_M_apply): Use
	std::__equal4 instead of C++14 4-iterator overloads of std::equal.
	* include/bits/stl_algobase.h (__equal4): New functions implementing
	4-iterator overloads of std::equal for use in C++11.
	(equal(It1, It1, It2, It2), equal(It1, It1, It2, It2, BinaryPred)):
	Move function bodies to new __equal4 functions.
	* testsuite/28_regex/simple_c++11.cc: New.

From-SVN: r252981
2017-09-19 18:06:12 +01:00
Jonathan Wakely
c4b06e7f1d PR libstdc++/82254 fix std::is_nothrow_invocable_r w.r.t throwing conversions
PR libstdc++/82254
	* include/std/type_traits (__is_invocable): Add partial specialization
	for INVOKE<void> case and remove is_void<R> check from partial
	specialization for INVOKE<R> case.
	(__is_nt_invocable_impl): New helper for is_nothrow_invocable_r.
	(is_nothrow_invocable_r): Use __is_nt_invocable_impl.
	* testsuite/20_util/is_nothrow_invocable/value.cc: Add tests for
	conversions that can throw or fail to convert. Use static assert
	strings to explain negative results.
	* testsuite/20_util/is_nothrow_invocable/value_ext.cc: Use
	is_nothrow_constructible in is_nt_invocable_conv.

From-SVN: r252977
2017-09-19 15:33:51 +01:00
Jonathan Wakely
db624b3b4b Use built-in for std::make_integer_sequnce
* include/std/utility (_Itup_cat, _Make_integer_sequence): Remove.
	(_Build_index_tuple, make_integer_sequence): Use built-in to generate
	pack expansion.

From-SVN: r252923
2017-09-18 13:02:19 +01:00
Jonathan Wakely
ec26ff5a01 PR libstdc++/71187 reimplement declval without add_rvalue_reference
PR libstdc++/71187
	* include/std/type_traits (__declval): New function to deduce return
	type of declval.
	(__declval_protector::_delegate): Remove.
	(declval): Use __declval instead of add_rvalue_reference and
	__declval_protector::__delegate.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
	lineno.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.

From-SVN: r252922
2017-09-18 12:40:10 +01:00
Jonathan Wakely
d0dda80415 PR libstdc++/81468 constrain std::chrono::time_point constructor
PR libstdc++/81468
	* include/std/chrono (__enable_if_is_duration)
	(__disable_if_is_duration): New alias templates to simplify SFINAE.
	(duration_cast, floor, ceil): Use __enable_if_is_duration.
	(duration::__is_float, duration::__is_harmonic): New alias templates
	to simplify SFINAE.
	(duration::duration(const _Rep2&)): Use _Require, __is_float and
	__is_harmonic.
	(duration::duration(const duration<_Rep2, _Period2>&)): Likewise.
	(__common_rep_type): Remove, replace with ...
	(__common_rep_t): New alias template.
	(operator*, operator/, operator%): Use __common_rep_t and
	__disable_if_is_duration.
	(time_point::time_point(const time_point<clock, _Dur2>&)): Add missing
	constraint from LWG DR 1177.
	* testsuite/20_util/duration/cons/dr1177.cc: New.
	* testsuite/20_util/duration/literals/range.cc: Update dg-error line.
	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
	* testsuite/20_util/time_point/cons/81468.cc: New.

From-SVN: r252085
2017-09-13 15:07:44 +01:00
Jonathan Wakely
2af96386a6 Define std::__to_address helper
* include/bits/allocated_ptr.h (__allocated_ptr::get): Use
	__to_address.
	(__allocated_ptr::_S_raw_ptr): Remove.
	* include/bits/forward_list.h (_Fwd_list_base::_M_get_node): Use
	__to_address.
	* include/bits/hashtable_policy.h (_Hashtable_alloc): Likewise.
	* include/bits/ptr_traits.h (__to_address): Define new function
	template.
	* include/bits/shared_ptr_base.h (__shared_ptr): Use __to_address.
	(__shared_ptr::_S_raw_ptr): Remove.
	* include/bits/stl_vector.h [__cplusplus >= 201103L]
	(vector::_M_data_ptr): Use __to_address.
	[__cplusplus < 201103L] (vector::_M_data_ptr): Don't dereference
	possibly invalid pointers.
	* include/ext/alloc_traits.h (__alloc_traits::construct)
	(__alloc_traits::destroy): Use __to_address.

From-SVN: r252055
2017-09-13 08:27:40 +01:00
Jonathan Wakely
d681026df1 PR libstdc++/79433 no #error for including TS headers with wrong -std
PR libstdc++/79433
	* include/Makefile.am: Remove <bits/c++14_warning.h>.
	* include/Makefile.in: Regenerate.
	* include/bits/c++14_warning.h: Remove.
	* include/experimental/algorithm: Do not include <c++14_warning.h>.
	* include/experimental/any: Likewise.
	* include/experimental/array: Likewise.
	* include/experimental/bits/erase_if.h: Likewise.
	* include/experimental/bits/lfts_config.h: Likewise.
	* include/experimental/bits/shared_ptr.h: Likewise.
	* include/experimental/bits/string_view.tcc: Likewise.
	* include/experimental/chrono: Likewise.
	* include/experimental/deque: Likewise.
	* include/experimental/filesystem: Do not include <c++0x_warning.h>.
	* include/experimental/forward_list: Do not include <c++14_warning.h>.
	* include/experimental/functional: Likewise.
	* include/experimental/iterator: Likewise.
	* include/experimental/list: Likewise.
	* include/experimental/map: Likewise.
	* include/experimental/memory: Likewise.
	* include/experimental/numeric: Likewise.
	* include/experimental/optional: Likewise.
	* include/experimental/propagate_const: Likewise.
	* include/experimental/ratio: Likewise.
	* include/experimental/regex: Likewise.
	* include/experimental/set: Likewise.
	* include/experimental/string: Likewise.
	* include/experimental/string_view: Likewise.
	* include/experimental/system_error: Likewise.
	* include/experimental/tuple: Likewise.
	* include/experimental/type_traits: Likewise.
	* include/experimental/unordered_map: Likewise.
	* include/experimental/unordered_set: Likewise.
	* include/experimental/vector: Likewise.
	* testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error
	line number.
	* testsuite/experimental/array/neg.cc: Likewise.
	* testsuite/experimental/propagate_const/assignment/move_neg.cc:
	Likewise.
	* testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements5.cc: Likewise.

From-SVN: r252019
2017-09-12 15:03:06 +01:00
Jonathan Wakely
c6888c6257 PR libstdc++/79433 no #error for including headers with wrong -std
PR libstdc++/79433
	* doc/xml/manual/status_cxx2017.xml: Update feature-test macros.
	* doc/html/*: Regenerate.
	* include/Makefile.am: Remove <bits/c++17_warning.h>.
	* include/Makefile.in: Regenerate.
	* include/bits/c++17_warning.h: Remove.
	* include/bits/string_view.tcc: Do not include <bits/c++17_warning.h>
	for pre-C++17 modes.
	* include/std/any: Likewise.
	(__cpp_lib_any): Define.
	* include/std/mutex (__cpp_lib_scoped_lock): Adjust value as per new
	SD-6 draft.
	* include/std/numeric (__cpp_lib_gcd_lcm): Define as per new SD-6
	draft.
	* include/std/optional: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_optional): Define.
	* include/std/shared_mutex: Do not include <bits/c++14_warning.h>.
	* include/std/string_view: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_string_view): Define.
	* include/std/variant: Do not include <bits/c++17_warning.h>.
	(__cpp_lib_variant): Define.
	* testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/26_numerics/gcd/1.cc: Test for __cpp_lib_gcd_lcm.
	* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/26_numerics/lcm/1.cc: Test for __cpp_lib_gcd_lcm.
	* testsuite/26_numerics/lcm/lcm_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Adjust
	expected value of __cpp_lib_scoped_lock.

From-SVN: r252018
2017-09-12 15:02:59 +01:00
Jonathan Wakely
2be7a166a9 PR libstdc++/70483 make std::experimental::string_view fully constexpr
PR libstdc++/70483
	* include/experimental/bits/string_view.tcc (basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of): Add constexpr specifier.
	* include/experimental/string_view (basic_string_view::remove_prefix)
	(basic_string_view::remove_suffix, basic_string_view::swap)
	(basic_string_view::compare, basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of, operator==, operator!=)
	(operator<, operator>, operator<=, operator>=): Likewise.
	* testsuite/experimental/string_view/operations/compare/char/70483.cc:
	New.

From-SVN: r252017
2017-09-12 14:31:20 +01:00
Jonathan Wakely
c5ae1a27bd PR libstdc++/70483 make std::string_view fully constexpr
PR libstdc++/70483
	* include/bits/string_view.tcc (basic_string_view::find)
	(basic_string_view::rfind, basic_string_view::find_first_of)
	(basic_string_view::find_last_of, basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of): Add constexpr specifier.
	* include/std/string_view (basic_string_view::operator=)
	(basic_string_view::rbegin, basic_string_view::rend)
	(basic_string_view::crbegin, basic_string_view::crend)
	(basic_string_view::remove_prefix, basic_string_view::remove_suffix)
	(basic_string_view::swap, basic_string_view::compare)
	(basic_string_view::find, basic_string_view::rfind)
	(basic_string_view::find_first_of, basic_string_view::find_last_of)
	(basic_string_view::find_first_not_of)
	(basic_string_view::find_last_not_of, basic_string_view::_M_check)
	(basic_string_view::_M_limit, operator==, operator!=, operator<)
	(operator>, operator<=, operator>=): Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
	char/1.cc: Repeat tests in constexpr context.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
	wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
	char/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
	wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/char/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/range_access/char/1.cc: Test
	cbegin, cend, rbegin, rend, crbegin and crend.
	* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
	Remove trailing whitespace.
	* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
	1.cc: Likewise.
	* testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc:
	New.
	* testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc:
	New.
	* testsuite/21_strings/basic_string_view/operations/compare/char/2.cc:
	New.
	* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/
	2.cc: New.

From-SVN: r251988
2017-09-11 22:47:41 +01:00
Tim Shen
3366a47408 re PR libstdc++/71500 (regex::icase only works on first character in a range)
PR libstdc++/71500
	* include/bits/regex_executor.tcc: Support icase in regex_tratis<...>
	for back reference matches.
	* testsuite/28_regex/regression.cc: Test case.

From-SVN: r251982
2017-09-11 19:02:34 +00:00
Daniel Kruegler
df66af3b1e PR libstdc++/79162 implement LWG 2946 and LWG 2758
2017-09-04  Daniel Kruegler  <daniel.kruegler@gmail.com>

	PR libstdc++/79162
	Implement LWG 2946, LWG 2758's resolution missed further corrections
	* include/bits/basic_string.h (basic_string::compare): Add missing
	required noexcept specifications.
	(basic_string): Introduce internal _S_to_string_view and __sv_wrapper
	for implicit string_view conversion.
	(basic_string::basic_string): Fix explicit string_view conversion by
	implicit conversion using _S_to_string_view and __sv_wrapper.
	(basic_string): Introduce internal basic_string(__sv_wrapper, Alloc)
	constructor.
	(basic_string): Fix operator=(T) template by operator=(const T&)
	template for uncopyable types (PR 79162).
	(basic_string::operator+=, basic_string::append, basic_string::assign)
	(basic_string::insert, basic_string::replace, basic_string::find)
	(basic_string::rfind, basic_string::find_first_of)
	(basic_string::find_last_of, basic_string::find_first_not_of)
	(basic_string::find_last_not_of, basic_string::compare): Replace
	__sv_type argument by template const T& (LWG 2946) and correct
	documentation describing __sv_type argument.
	(basic_string::find, basic_string::rfind, basic_string::find_first_of)
	(basic_string::find_last_of, basic_string::find_first_not_of)
	(basic_string::find_last_not_of, basic_string::compare): Replace
	unconditional noexcept specification by conditional noexcept
	specification to partially balance the removal of noexcept by LWG 2946.
	* testsuite/21_strings/basic_string/79162.cc: New.
	* testsuite/21_strings/basic_string/lwg2946.cc: New.

From-SVN: r251664
2017-09-04 16:48:47 +01:00
Jonathan Wakely
89c6ecfa4c PR c++/82039 suppress -Wzero-as-null-pointer-constant warning
PR c++/82039
	* include/ext/new_allocator.h (__gnu_cxx::new_allocator::allocate):
	Adjust null pointer constant to avoid warning.

From-SVN: r251570
2017-08-31 17:45:37 +01:00
François Dumont
55500f5d28 stl_list.h [!_GLIBCXX_INLINE_VERSION](_List_base<>::_S_distance): Remove.
2017-08-24  François Dumont  <fdumont@gcc.gnu.org>

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

From-SVN: r251342
2017-08-24 20:31:53 +00:00
Jonathan Wakely
2c0378f467 PR libstdc++/81912 make std::__iterator_category constexpr
PR libstdc++/81912
	* include/bits/stl_iterator_base_types.h (__iterator_category): Add
	constexpr for C++11 and later.
	* testsuite/24_iterators/container_access.cc: Add target selector.
	* testsuite/24_iterators/range_access.cc: Fix clause number in
	comment.
	* testsuite/24_iterators/range_access_cpp14.cc: Likewise.
	* testsuite/24_iterators/range_access_cpp17.cc: New.

From-SVN: r251234
2017-08-21 16:14:27 +01:00
Jonathan Wakely
b74f0db11a Simplify allocator usage in unordered containers
* include/bits/hashtable_policy.h (_ReuseOrAllocNode): Remove
	__value_alloc_type and __value_alloc_traits typedefs.
	(_ReuseOrAllocNode::operator()): Call construct and destroy on the
	node allocator.
	(_Hashtable_alloc): Simplify __value_alloc_traits typedef.
	(_Hashtable_alloc<_NodeAlloc>::_M_allocate_node(_Args&&...)): Call
	construct on the node allocator.
	(_Hashtable_alloc<_NodeAlloc>::_M_deallocate_node(__node_type*)): Call
	destroy on the node allocator.

From-SVN: r251187
2017-08-18 19:20:43 +01:00