tree 50cdcfe48c88e4273046f2c6542f24bc6f349cba
parent 792632fb6e5c9fd81b1924a3e722dbec4cf4acfe
author jasonliu <jasonliu.development@gmail.com> 1617918522 +0000
committer Copybara-Service <copybara-worker@google.com> 1618252206 -0700

[libc++] Fix abs and div overload issue for compilers on AIX

Summary:
AIX system's stdlib.h provide different overload of abs and div
depending on compiler versions.

For example, std::div(long, long) and std::abs(long) are not available
from OS's stdlib.h when building with clang, but they are available
when building with xlclang compiler.

Therefore, we need to provide those extra overloads in libc++'s stdlib.h
when OS's stdlib.h does not.

Differential Revision: https://reviews.llvm.org/D99767

GitOrigin-RevId: f3d7536b24f1d65c09de4899a51d9fdda83c3b1d