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gcc/libstdc++-v3
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Jonathan Wakely 1fa85dcf65 libstdc++: Add std::span::at for C++26 (P2821R5) 
Also define the new feature test macros from P2833R2, indicating that
std::span and std::expected are supported for freestanding mode.

libstdc++-v3/ChangeLog:

	* include/bits/version.def (freestanding_expected): New macro.
	(span): Add C++26 value.
	* include/bits/version.h: Regenerate.
	* include/std/expected (__glibcxx_want_freestanding_expected):
	Define.
	* include/std/span (span::at): New member function.
	* testsuite/20_util/expected/version.cc: Add checks for
	__cpp_lib_freestanding_expected.
	* testsuite/23_containers/span/2.cc: Moved to...
	* testsuite/23_containers/span/version.cc: ...here. Add checks
	for __cpp_lib_span in <span> as well as in <version>.
	* testsuite/23_containers/span/1.cc: Removed.
	* testsuite/23_containers/span/at.cc: New test.
2023-11-21 15:58:21 +00:00
..
config libstdc++: [_GLIBCXX_INLINE_VERSION] Add comment on emul TLS symbols 2023-10-30 22:07:49 +01:00
doc libstdc++: Remove outdated references to buildstat.html 2023-11-21 15:58:20 +00:00
include libstdc++: Add std::span::at for C++26 (P2821R5) 2023-11-21 15:58:21 +00:00
libsupc++ libstdc++: Simplify C++20 poison pill overloads (P2602R2) 2023-09-07 08:08:12 +01:00
po Update copyright years. 2023-01-16 11:52:17 +01:00
python libstdc++: Fix std::deque::operator[] Xmethod [PR112491] 2023-11-15 11:16:49 +00:00
scripts libstdc++: Add Filesystem TS and std::stacktrace symbols to libstdc++exp.a 2023-09-08 18:04:12 +01:00
src libstdc++/112351 - deal with __gthread_once failure during locale init 2023-11-07 13:55:07 +01:00
testsuite libstdc++: Add std::span::at for C++26 (P2821R5) 2023-11-21 15:58:21 +00:00
acinclude.m4 libstdc++: use -D_GNU_SOURCE when building libbacktrace 2023-11-06 15:11:43 -08:00
aclocal.m4 libstdc++: Don't use gstdint.h anymore 2022-10-29 00:55:42 +01:00
ChangeLog Daily bump. 2023-11-19 00:17:38 +00:00
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ChangeLog-2022 Rotate ChangeLog files. 2023-01-01 16:20:13 +01:00
config.h.in libstdc++: Regenerate config.h.in 2023-11-17 15:28:43 +00:00
configure *: add modern gettext 2023-11-14 00:47:11 +01:00
configure.ac Config,Darwin: Allow for configuring Darwin to use embedded runpath. 2023-10-22 19:30:02 +01:00
configure.host LoongArch: Adjust C++ multilib header layout. 2023-09-08 17:51:06 +08:00
crossconfig.m4 libstdc++: Allow emergency EH alloc pool size to be tuned [PR68606] 2022-10-11 16:21:48 +01:00
fragment.am
linkage.m4 libstdc++: Remove handling for underscore-prefixed libm functions [PR111638] 2023-11-11 00:41:08 +00:00
Makefile.am libstdc++: Enable building libstdc++.{a,so} when !HOSTED 2023-02-06 14:23:46 +00:00
Makefile.in libstdc++: Enable building libstdc++.{a,so} when !HOSTED 2023-02-06 14:23:46 +00:00
README

README 

file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.