2 Commits

Author	SHA1	Message	Date
Louis Dionne	8508b1c133	[libc++] Divorce the std Lit feature from the -std=XXX compiler flag ... After this patch, we can use `--param std=c++20` even if the compiler only supports -std=c++2a. The test suite will handle that for us. The only Lit feature that isn't fully baked will always be the "in development" one, since we don't know exactly what year the standard will be ratified in. This is another take on https://reviews.llvm.org/D99789. Differential Revision: https://reviews.llvm.org/D100210	2021-04-12 11:55:39 -04:00
Marek Kurdej	044b892c79	[libc++] Use c++20 instead of c++2a consistently. ... * The only exception is that the flag -std=c++2a is still used not to break compatibility with older compilers (clang <= 9, gcc <= 9). * Bump _LIBCPP_STD_VER for C++20 to 20 and use 21 for the future standard (C++2b). That's a preparation step to add c++2b support to libc++. Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D93383	2021-01-07 13:11:33 +01:00