[PATCH] D53486: [libcxx] Only define __libcpp_is_floating_point<_Float16> for Clang

[Marshall Clow via Phabricator]

mclow.lists added a comment.

I'm having trouble getting past the following wording in the standard: "There are three floating-point types: float, double, and long double."

that `is_floating_point<T>::value` is true if T is a floating point type. (reference to above wording).


Repository:
  rCXX libc++

https://reviews.llvm.org/D53486