r277943 - in /trunk/libstdc++-v3: ChangeLog lib...

[redi@gcc.gnu.org]

Author: redi
Date: Fri Nov  8 00:37:08 2019
New Revision: 277943

URL: https://gcc.gnu.org/viewcvs?rev=277943&root=gcc&view=rev
Log:
libstdc++: define std::common_comparison_category for C++20

	* libsupc++/compare (common_comparison_category)
	(common_comparison_category_t): Define for C++20.
	* testsuite/18_support/comparisons/common/1.cc: New test.

Added:
    trunk/libstdc++-v3/testsuite/18_support/comparisons/
    trunk/libstdc++-v3/testsuite/18_support/comparisons/common/
    trunk/libstdc++-v3/testsuite/18_support/comparisons/common/1.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/libsupc++/compare