Implement __builtin_ctzll for MSVC
authorChristopher Dykes <cdykes@fb.com>
Wed, 4 May 2016 17:28:49 +0000 (10:28 -0700)
committerFacebook Github Bot 0 <facebook-github-bot-0-bot@fb.com>
Wed, 4 May 2016 17:35:42 +0000 (10:35 -0700)
commitf79d6393cfd203d7293ac634328e36a7673c34e9
treef1bb5f0d553eb4fdade184743b3c8fc467f24ed2
parent32e0fe56c5f8b6b3e59137eef0b2b24821af0169
Implement __builtin_ctzll for MSVC

Summary: MSVC doesn't have it, but Folly uses it, so implement it in the Builtins portability header.

Reviewed By: yfeldblum

Differential Revision: D3256123

fb-gh-sync-id: fd9ea1b6098d97cf1fde4732905bae9bde8cd8ad
fbshipit-source-id: fd9ea1b6098d97cf1fde4732905bae9bde8cd8ad
folly/portability/Builtins.h