llvm-project

8d47bda9 - [libc++] Move math special functions under __cmath (#213944)

[libc++] Move math special functions under __cmath (#213944) It was always a bit weird that these were the only functions under __math/ which were not in the __math namespace and were not in the global namespace. This also led to a workaround in the C++20 modules testing. Instead, move math special functions under __cmath/, which will contain APIs that are part of `<cmath>` but not `<math.h>`.