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Author SHA1 Message Date
Ville Voutilainen c3799b164f Implement LWG 2221: formatted output operator for nullptr 
2019-01-10  Ville Voutilainen  <ville.voutilainen@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	Implement LWG 2221
	* config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
	(GLIBCXX_3.4.26): Add new exports.
	* include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
	correct list of sources.
	* include/Makefile.in: Regenerate.
	* include/std/ostream (operator<<(nullptr_t)): New member function.
	* src/c++17/ostream-inst.cc: New file.
	* testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
	test.

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

From-SVN: r267808
 2019-01-10 13:14:57 +00:00
Jonathan Wakely de4db54fd9 PR libstdc++/86756 Move rest of std::filesystem to libstdc++.so 
Move std::filesystem directory iterators and operations from
libstdc++fs.a to main libstdc++ library. These components have many
dependencies on OS support, which is not available on all targets. Some
additional autoconf checks and conditional compilation is needed to
ensure the files will build for all targets. Previously this code was
not compiled without --enable-libstdcxx-filesystem-ts but the C++17
components should be available for all hosted builds.

The tests for these components no longer need to link to libstdc++fs.a,
but are not expected to pass on all targets. To avoid numerous failures
on targets which are not expected to pass the tests (due to missing OS
functionality) leave the dg-require-filesystem-ts directives in place
for now. This will ensure the tests only run for builds where the
filesystem-ts library is built, which presumably means some level of OS
support is present.

	PR libstdc++/86756
	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
	lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
	* config.h.in: Regenerate.
	* config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
	remaining std::filesystem types and functions.
	* configure: Regenerate.
	* src/c++17/Makefile.am: Add C++17 filesystem sources.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
	here, and change name of included file.
	* src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
	here, and change name of included file.
	* src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
	path to dir-common.h.
	* src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
	path to ops-common.h. Disable -Wunused-parameter warnings.
	(internal_file_clock): Define unconditionally.
	[!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
	define.
	(do_copy_file, do_space): Move definitions to ops.common.h.
	(copy, file_size, hard_link_count, last_write_time, space): Only
	perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
	report an error.
	(last_write_time, read_symlink): Remove unused attributes from
	parameters.
	* src/filesystem/Makefile.am: Remove C++17 filesystem sources.
	* src/filesystem/Makefile.in: Regenerate.
	* src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
	* src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
	* src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
	* src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
	* src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
	dummy types and functions instead of using #error.
	* src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
	* src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
	in terms of stat.
	[!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
	(do_copy_file, do_space): Move definitions here from std-ops.cc.
	* src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
	to account for new namespace.
	* testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
	-lstdc++fs from dg-options.
	* testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
	* testsuite/27_io/filesystem/file_status/1.cc: Likewise.
	* testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
	* testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
	* testsuite/27_io/filesystem/iterators/directory_iterator.cc:
	Likewise.
	* testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
	* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
	Likewise.
	* testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
	* testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
	* testsuite/27_io/filesystem/operations/copy.cc: Likewise.
	* testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
	* testsuite/27_io/filesystem/operations/create_directories.cc:
	Likewise.
	* testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
	* testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
	* testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
	* testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
	* testsuite/27_io/filesystem/operations/exists.cc: Likewise.
	* testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
	* testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
	* testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
	* testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
	* testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
	* testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
	* testsuite/27_io/filesystem/operations/relative.cc: Likewise.
	* testsuite/27_io/filesystem/operations/remove.cc: Likewise.
	* testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
	* testsuite/27_io/filesystem/operations/space.cc: Likewise.
	* testsuite/27_io/filesystem/operations/status.cc: Likewise.
	* testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
	* testsuite/27_io/filesystem/operations/temp_directory_path.cc:
	Likewise.
	* testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.

From-SVN: r267616
 2019-01-06 22:34:37 +00:00
Jonathan Wakely 2b5225352e PR libstdc++/86756 add std::filesystem::path to libstdc++.so 
Move the C++17 std::filesystem::path definitions from the libstdc++fs.a
archive to the main libstdc++ library. The path classes do not depend on
any OS functions, so can be defined unconditionally on all targets
(rather than depending on --enable-libstdcxx-filesystem-ts). The tests
should pass on all targets too.

	PR libstdc++/86756
	* config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
	typeinfo and vtables less greedy.
	(GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
	* src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
	here, and change name of included file.
	* src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
	* src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
	from sources.
	* src/filesystem/Makefile.in: Regenerate.
	* src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
	* src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
	* testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
	from dg-options and remove dg-require-filesystem-ts.
	* testsuite/27_io/filesystem/path/append/source.cc: Likewise.
	* testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
	* testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
	* testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
	* testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
	* testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
	* testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
	* testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
	* testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
	* testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/root_directory.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
	* testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
	* testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
	* testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
	* testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
	* testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
	* testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
	* testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
	* testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
	* testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
	* testsuite/27_io/filesystem/path/native/string.cc: Likewise.
	* testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
	* testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_root_directory.cc:
	Likewise.
	* testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
	* testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.

From-SVN: r267615
 2019-01-06 22:34:29 +00:00
Jonathan Wakely 1a289fa362 Export explicit instantiations for C++17 members of std::string 
The C++17 standard added some new members to std::basic_string, which
were not previously instantiated in the library. This meant that the
extern template declarations had to be disabled for C++17 mode. With
this patch the new members are instantiated in the library and so the
explicit instantiation declarations can be used for C++17.

The new members added by C++2a are still not exported, and so the
explicit instantiation declarations are still disabled for C++2a.

	* config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
	for const member functions of std::basic_string.
	(GLIBCXX_3.4.26): Export member functions of std::basic_string added
	in C++17.
	* include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
	Make non-standard constructor private.
	[!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
	Likewise.
	* include/bits/basic_string.tcc (std::string, std::wstring): Declare
	explicit instantiations for C++17 as well as earlier dialects.
	* src/c++17/Makefile.am: Add new source files.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++17/cow-string-inst.cc: New file defining explicit
	instantiations for basic_string member functions added in C++17.
	* src/c++17/string-inst.cc: Likewise.

From-SVN: r267585
 2019-01-04 23:23:22 +00:00
Jakub Jelinek a554497024 Update copyright years. 
From-SVN: r267494
 2019-01-01 13:31:55 +01:00
Jonathan Wakely 852a971c26 Implement std::pmr::unsynchronized_pool_resource 
Implement std::pmr::unsynchronized_pool_resource
	* config/abi/pre/gnu.ver: Add new symbols.
	* include/std/memory_resource (std::pmr::__pool_resource): New class.
	(std::pmr::unsynchronized_pool_resource): New class.
	* src/c++17/Makefile.am: Add -fimplicit-templates to flags for
	memory_resource.cc
	* src/c++17/Makefile.in: Regenerate.
	* src/c++17/memory_resource.cc (bitset, chunk, big_block): New
	internal classes.
	(__pool_resource::_Pool): Define new class.
	(munge_options, pool_index, select_num_pools): New internal functions.
	(__pool_resource::__pool_resource, __pool_resource::~__pool_resource)
	(__pool_resource::allocate, __pool_resource::deallocate)
	(__pool_resource::_M_alloc_pools): Define member functions.
	(unsynchronized_pool_resource::unsynchronized_pool_resource)
	(unsynchronized_pool_resource::~unsynchronized_pool_resource)
	(unsynchronized_pool_resource::release)
	(unsynchronized_pool_resource::_M_find_pool)
	(unsynchronized_pool_resource::do_allocate)
	(unsynchronized_pool_resource::do_deallocate): Define member
	functions.
	* testsuite/20_util/unsynchronized_pool_resource/allocate.cc: New
	test.
	* testsuite/20_util/unsynchronized_pool_resource/is_equal.cc: New
	test.
	* testsuite/20_util/unsynchronized_pool_resource/options.cc: New
	test.
	* testsuite/20_util/unsynchronized_pool_resource/release.cc: New
	test.

From-SVN: r265853
 2018-11-06 21:35:27 +00:00
Jonathan Wakely dfaa3c47cc Add initial version of C++17 <memory_resource> header 
This is missing the synchronized_pool_resource and
unsynchronized_pool_resource classes but is otherwise complete.

This is a new implementation, not based on the existing code in
<experimental/memory_resource>, but memory_resource and
polymorphic_allocator ended up looking almost the same anyway.

The constant_init kluge in src/c++17/memory_resource.cc is apparently
due to Richard Smith and ensures that the objects are constructed during
constant initialiation phase and not destroyed (because the
constant_init destructor doesn't destroy the union member and the
storage is not reused).

	* config/abi/pre/gnu.ver: Export new symbols.
	* configure: Regenerate.
	* include/Makefile.am: Add new <memory_resource> header.
	* include/Makefile.in: Regenerate.
	* include/precompiled/stdc++.h: Include <memory_resource> for C++17.
	* include/std/memory_resource: New header.
	(memory_resource, polymorphic_allocator, new_delete_resource)
	(null_memory_resource, set_default_resource, get_default_resource)
	(pool_options, monotonic_buffer_resource): Define.
	* src/Makefile.am: Add c++17 directory.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.am: Fix comment.
	* src/c++17/Makefile.am: Add makefile for new sub-directory.
	* src/c++17/Makefile.in: Generate.
	* src/c++17/memory_resource.cc: New.
	(newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
	(default_res, new_delete_resource, null_memory_resource)
	(set_default_resource, get_default_resource): Define.
	* testsuite/20_util/memory_resource/1.cc: New test.
	* testsuite/20_util/memory_resource/2.cc: New test.
	* testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
	* testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
	* testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
	* testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
	* testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
	New test.
	* testsuite/20_util/polymorphic_allocator/1.cc: New test.
	* testsuite/20_util/polymorphic_allocator/resource.cc: New test.
	* testsuite/20_util/polymorphic_allocator/select.cc: New test.
	* testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
	Define concrete memory resource for testing.
	(__gnu_test::default_resource_mgr): Define RAII helper for changing
	default resource.

From-SVN: r262953
 2018-07-24 22:09:55 +01:00