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gcc/libstdc++-v3
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Jonathan Wakely 44af818f00 Only use GCC-specific __is_same_as built-in conditionally 
Clang doesn't support __is_same_as but provides __is_same instead.
Restore the original implementation (pre r276891) when neither of those
built-ins is available.

	* include/bits/c++config (_GLIBCXX_BUILTIN_IS_SAME_AS): Define to
	one of __is_same_as or __is_same when available.
	* include/std/concepts (__detail::__same_as): Use std::is_same_v.
	* include/std/type_traits (is_same) [_GLIBCXX_BUILTIN_IS_SAME_AS]:
	Use new macro instead of __is_same_as.
	(is_same) [!_GLIBCXX_BUILTIN_IS_SAME_AS]: Restore partial
	specialization.
	(is_same_v) [_GLIBCXX_BUILTIN_IS_SAME_AS]: Use new macro.
	(is_same_v) [!_GLIBCXX_BUILTIN_IS_SAME_AS]: Use std::is_same.

From-SVN: r277058
2019-10-16 11:26:05 +01:00
..
config Remove greedy wildcards from libstdc++ linker script 2019-10-02 16:52:41 +01:00
doc Add makefile target to update HTML files in source tree 2019-10-08 12:01:44 +01:00
include Only use GCC-specific __is_same_as built-in conditionally 2019-10-16 11:26:05 +01:00
libsupc++ [ARM/FDPIC v6 06/24] [ARM] FDPIC: Add support for c++ exceptions 2019-09-10 09:47:49 +02:00
po PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +00:00
python Fix Xmethod for shared_ptr::use_count() 2019-09-11 12:38:23 +01:00
scripts Implement <concepts> header for C++20 2019-10-11 16:53:52 +01:00
src [_GLIBCXX_DEBUG] Clarify constness and state <unknown> entries. 2019-10-16 05:05:27 +00:00
testsuite Implement <concepts> header for C++20 2019-10-11 16:53:52 +01:00
acinclude.m4 [ARM/FDPIC v6 24/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in libstdc++ configure scripts 2019-09-10 10:13:20 +02:00
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
ChangeLog Only use GCC-specific __is_same_as built-in conditionally 2019-10-16 11:26:05 +01:00
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ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
config.h.in Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure.ac Build filesystem library with large file support 2019-10-04 16:08:23 +01:00
configure.host [ARM/FDPIC v6 24/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in libstdc++ configure scripts 2019-09-10 10:13:20 +02:00
crossconfig.m4 Remove Cell Broadband Engine SPU targets 2019-09-03 15:08:28 +00:00
fragment.am
linkage.m4
Makefile.am Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.in PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +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.