[Bug libstdc++/92850] clang has already supported concepts in latest trunk. However it does not define __cpp_concepts macro. I defined it but crashes clang compiler

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92850

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The crash itself should report to llvm project for sure.

Are you sure concepts are fully implemented in clang?