mirror of git://gcc.gnu.org/git/gcc.git
03562c1e02
This implements the C++23 proposal P2404R3 "Move-only types for equality_comparable_with, totally_ordered_with, and three_way_comparable_with". As agreed with the maintainers of libc++ and MSVC STL, we treat this as a DR for C++20. It allows reasonable code to compile which wasn't originally allowed in C++20, and only affects some obscure subsumption cases for valid C++20 code. libstdc++-v3/ChangeLog: PR libstdc++/122946 * include/bits/version.def (concepts): Set value to 202207. * include/bits/version.h: Regenerate. * include/std/concepts (__comparison_common_type_with_impl) (__comparison_common_type_with): New helper concepts. (equality_comparable_with): Use __comparison_common_type_with. * libsupc++/compare (three_way_comparable_with): Likewise. (__glibcxx_want_concepts): Define to get __cpp_lib_concepts here. * testsuite/std/concepts/concepts.compare/move_only.cc: New test. Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com> |
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| INSTALL | ||
| c++tools | ||
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| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
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| ABOUT-NLS | ||
| COPYING | ||
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| ChangeLog | ||
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| Makefile.def | ||
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| README | ||
| SECURITY.txt | ||
| ar-lib | ||
| compile | ||
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| configure | ||
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| missing | ||
| mkdep | ||
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| move-if-change | ||
| multilib.am | ||
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README
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.