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gcc/libstdc++-v3/testsuite
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Jonathan Wakely 59ffa3e3db libstdc++: Avoid unconditional use of errc::not_supported [PR 99327] 
The errc::not_supported constant is only defined if ENOTSUP is defined,
which is not true for all targets. Many uses of errc::not_supported in
the filesystem library do not actually match the intended meaning of
ENOTSUP described by POSIX. They should be using ENOSYS instead
(i.e. errc::function_not_supported).

This change ensures that appropriate error codes are used by the
filesystem library. The remaining uses of errc::not_supported are
replaced with a call to a new helper function so that an alternative
value will be used on targets that don't support errc::not_supported.

Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

libstdc++-v3/ChangeLog:

	PR libstdc++/99327
	* src/filesystem/ops-common.h (__unsupported): New function to
	return a suitable error code for missing functionality.
	(posix::off_t): New typedef.
	(posix::*): Set errno to ENOSYS instead of ENOTSUP for no-op
	fallback implementations.
	(do_copy_file): Replace uses of errc::not_supported.
	* src/c++17/fs_ops.cc (fs::copy, fs::copy_file, create_dir)
	(fs::create_directory, fs::create_directory_symlink)
	(fs::create_hard_link, fs::create_symlink, fs::current_path)
	(fs::equivalent, do_stat, fs::file_size, fs::hard_link_count)
	(fs::last_write_time, fs::permissions, fs::read_symlink):
	Replace uses of errc::not_supported.
	(fs::resize_file): Qualify off_t.
	* src/filesystem/ops.cc (fs::copy, fs::copy_file, create_dir)
	(fs::create_directory, fs::create_directory_symlink)
	(fs::create_hard_link, fs::create_symlink, fs::current_path)
	(fs::equivalent, do_stat, fs::file_size, fs::last_write_time)
	(fs::permissions, fs::read_symlink, fs::system_complete):
	Replace uses of errc::not_supported.
	(fs::resize_file): Qualify off_t and enable unconditionally.
	* testsuite/19_diagnostics/system_error/cons-1.cc: Likewise.
2021-10-01 20:34:50 +01:00
..
17_intro libstdc++: Fix 17_intro/names.cc failures on Solaris 2021-08-31 14:17:53 +01:00
18_support libstdc++: Add [[nodiscard]] to <compare> 2021-08-05 15:16:58 +01:00
19_diagnostics libstdc++: Avoid unconditional use of errc::not_supported [PR 99327] 2021-10-01 20:34:50 +01:00
20_util libstdc++: Allow visiting inherited variants [PR 90943] 2021-10-01 20:34:48 +01:00
21_strings libstdc++: Add [[nodiscard]] to iterators and related utilities 2021-08-04 12:54:28 +01:00
22_locale libstdc++: Fix new test for C++98 mode [PR 89728] 2021-06-01 19:02:42 +01:00
23_containers libstdc++: Skip container adaptor tests that fail concept checks 2021-09-28 20:22:51 +01:00
24_iterators libstdc++: Use conditional noexcept in std::reverse_iterator [PR 94418] 2021-10-01 20:34:46 +01:00
25_algorithms libstdc++: Add missing header to test 2021-10-01 15:04:02 +01:00
26_numerics libstdc++: Rename tests with incorrect extension 2021-09-17 12:40:41 +01:00
27_io libstdc++: Rename tests with incorrect extension 2021-09-17 12:40:41 +01:00
28_regex libstdc++: Implement std::regex_constants::multiline (LWG 2503) 2021-09-29 13:48:19 +01:00
29_atomics libstdc++: Fix UB in atomic_ref/wait_notify.cc [PR101761] 2021-09-16 14:48:17 -07:00
30_threads c++: limit instantiation with ill-formed class [PR96286] 2021-08-30 17:25:21 -04:00
abi Update copyright years. 2021-01-04 10:26:59 +01:00
backward Update copyright years. 2021-01-04 10:26:59 +01:00
config Update copyright years. 2021-01-04 10:26:59 +01:00
data
decimal Update copyright years. 2021-01-04 10:26:59 +01:00
experimental libstdc++: Use "test.invalid." for invalid hostname 2021-09-10 15:10:21 +01:00
ext libstdc++: Increase timeout factor for slow pb_ds tests 2021-09-16 23:06:38 +01:00
lib libstdc++: Avoid illegal argument to verbose in dg-test callback, continued 2021-08-17 21:05:27 +02:00
libstdc++-abi Update copyright years. 2021-01-04 10:26:59 +01:00
libstdc++-dg libstdc++: Add std::experimental::simd from the Parallelism TS 2 2021-01-27 16:37:26 +00:00
libstdc++-prettyprinters libstdc++: Fix vector<bool> printer tests to work in debug mode 2021-08-18 14:26:38 +01:00
libstdc++-xmethods Update copyright years. 2021-01-04 10:26:59 +01:00
performance Update copyright years. 2021-01-04 10:26:59 +01:00
special_functions Update copyright years. 2021-01-04 10:26:59 +01:00
std libstdc++: Add default template argument to basic_istream_view 2021-08-23 16:17:10 +01:00
tr1 libstdc++: Fix some tests that fail in C++20 mode 2021-04-12 12:30:07 +01:00
tr2 Update copyright years. 2021-01-04 10:26:59 +01:00
util libstdc++: Fix last std::tuple constructor missing 'constexpr' [PR102270] 2021-09-17 20:43:34 +01:00
Makefile.am libstdc++: Remove -fno-tree-vrp after PR98834 was resolved 2021-06-23 18:28:59 +01:00
Makefile.in libstdc++: Remove -fno-tree-vrp after PR98834 was resolved 2021-06-23 18:28:59 +01:00