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Jonathan Wakely 0d67cd380d Define __type_identity_t alias and use for string_view 
This defines the equivalent of C++2a's std::type_identity_t alias but
for use in C++11 and later. This can be used to replace __detail::__idt
in the string_view headers, which previously used common_type_t because
the one argument specialization of common_type_t was simply the identity
transform (which is no longer true).

	* include/experimental/string_view (__detail::__idt): Remove.
	(operator==, operator!=, operator<, operator>, operator<=, operator>=):
	Use __type_identity_t instead of __detail::__idt;
	* include/std/string_view (__detail::__idt): Remove.
	(operator==, operator!=, operator<, operator>, operator<=, operator>=):
	Use __type_identity_t instead of __detail::__idt;
	* include/std/type_traits (__type_identity_t): New alias template.

From-SVN: r273442
2019-07-12 12:43:22 +01:00
..
config PR libstdc++/91067 fix missing exports for filesystem iterators 2019-07-03 22:06:25 +01:00
doc Update C++2a library status table 2019-07-12 12:43:17 +01:00
include Define __type_identity_t alias and use for string_view 2019-07-12 12:43:22 +01:00
libsupc++ PR libstdc++/90682 allow set_terminate(0) and set_unexpected(0) 2019-05-31 11:35:11 +01:00
po PR libstdc++/89466 avoid slow xsltproc command in configure 2019-02-27 11:25:44 +00:00
python Have std::vector printer's iterator return bool for vector<bool> 2019-06-19 23:57:06 +01:00
scripts Remove Profile Mode, deprecated since GCC 7.1 2019-05-13 11:50:21 +01:00
src PR libstdc++/91012 fixfilesystem_error::what() string 2019-06-27 10:42:39 +01:00
testsuite Define std::atomic_ref and std::atomic<floating-point> for C++20 2019-07-11 20:43:25 +01:00
acinclude.m4 PR libstdc++/91067 fix missing exports for filesystem iterators 2019-07-03 22:06:25 +01:00
aclocal.m4
ChangeLog Define __type_identity_t alias and use for string_view 2019-07-12 12:43:22 +01:00
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ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
config.h.in PR libstdc++/85494 use rdseed and rand_s in std::random_device 2019-05-29 15:45:35 +01:00
configure PR libstdc++/91067 fix missing exports for filesystem iterators 2019-07-03 22:06:25 +01:00
configure.ac Fix libstdc++ install-pdf support. 2019-07-01 19:30:52 -07:00
configure.host Remove obsolete Solaris 10 support 2019-05-14 17:17:23 +00:00
crossconfig.m4 PR libstdc++/89460 Fix Networking TS test failures on HP-UX 2019-03-11 16:28:11 +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.