[libcxx-commits] [libcxx] <algorithm>: __is_callable checks whether the callable can be called with rvalue (PR #73451)

[Nhat Nguyen via libcxx-commits]

changkhothuychung wrote:

@ldionne ldi
can you give me a test example so I can add for this PR? should it be a verify or pass test? 

https://github.com/llvm/llvm-project/pull/73451