commit 0eed6e63fb52ce155e3d0522dcc51bead30e05bc
author jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Dec 12 08:31:01 2018 +0000
committer jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Dec 12 08:31:01 2018 +0000
tree 93795a415d66bf514bcedfb5b91ef21766532313
parent 919873c72f85d2b7c7d39c437299d6c40d65cf85

	P0595R2 - is_constant_evaluated
	* include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED):
	Define if __builtin_is_constant_evaluated is available.
	* include/std/type_traits (std::is_constant_evaluated): New constexpr
	inline function.
	* testsuite/20_util/is_constant_evaluated/1.cc: New test.
	* testsuite/20_util/is_constant_evaluated/noexcept.cc: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@267045 138bc75d-0d04-0410-961f-82ee72b054a4