Jonathan Wakely a219139e98 libstdc++: Implement std::ios_base::noreplace for C++23 [PR59769] ... This implements my P2467R0 proposal to support opening an fstream in exclusive mode. The new constant is also supported pre-C++23 as std::ios_base::__noreplace. This proposal hasn't been approved for C++23 yet, but I am confident it will be, as this is restoring a feture found in pre-ISO C++ iostreams implementations (and still present in the MSVC library as _Noreplace). If the proposal fails for C++23 we can remove the ios::noreplace name and just keep ios::__noreplace as an extension. libstdc++-v3/ChangeLog: PR libstdc++/59769 * config/io/basic_file_stdio.cc (fopen_mode): Add support for exclusive mode. * include/bits/ios_base.h (_S_noreplace): Define new enumerator. (ios_base::__noreplace): Define. (ios_base::noreplace): Define for C++23. * include/std/version (__cpp_lib_ios_noreplace): Define. * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: New test. * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc: New test.		2021-12-09 22:59:48 +00:00
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abi	libstdc++: Allow std::condition_variable waits to be cancelled [PR103382]	2021-12-09 22:58:19 +00:00
allocator	libstdc++: Fix non-reserved name in std::allocator base class [PR64135]	2021-12-09 22:50:10 +00:00
cpu	Update copyright years.	2021-01-04 10:26:59 +01:00
io	libstdc++: Implement std::ios_base::noreplace for C++23 [PR59769]	2021-12-09 22:59:48 +00:00
locale	ctype support for libstdc++ on VxWorks	2021-05-04 21:49:43 -03:00
os	Revert "libstdc++: Fix ctype changed after newlib update."	2021-12-07 10:37:30 +00:00