52 Commits

Author	SHA1	Message	Date
Eric Fiselier	2fc5a786be	Add std::is_constant_evaluated. ... Clang recently added __builtin_is_constant_evaluated() and GCC 9.0 has it as well. This patch adds support for it in libc++. llvm-svn: 359119	2019-04-24 17:54:25 +00:00
Eric Fiselier	32784a740a	Implement feature test macros using a script. ... Summary: This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a. The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++. When a new feature test macro is added or needed, the table should be updated and the script re-run. Reviewers: mclow.lists, jfb, serge-sans-paille Reviewed By: mclow.lists Subscribers: arphaman, jfb, ldionne, libcxx-commits Differential Revision: https://reviews.llvm.org/D56750 llvm-svn: 351286	2019-01-16 01:37:43 +00:00