tree 16c42e9b64e74c7226b018799673bd33adb4c205
parent 070534ff405df98ec62178633bdf3ae094aeb57d
author Louis Dionne <ldionne@apple.com> 1553793739 +0000
committer Copybara-Service <copybara-worker@google.com> 1598996459 -0700

[pstl] Introduce forward declarations

Necessary when pstl is included from with <algorithm> and <numeric> to
prevent a partially declared standard library when pstl itself uses
algorithms from <algorithm> and <numeric>.

Also, this patch makes sure that configuration comes via standard headers.
Directly including pstl_config.h in implementation files is incompatible
with inclusion of pstl into a standard library implementation which
provides it's own library wide configuration and may configure the
library differently to the pstl_config.h used by the standalone
implementation.

Differential Revision: https://reviews.llvm.org/D59122

llvm-svn: 357189
GitOrigin-RevId: 1dd1b5d5f254ef25dd184d71cb60db92a750d96b