3 Commits

Author SHA1 Message Date
kwiberg
729b21f97f Add clz functions (Count number of Leading Zero bits), 32-and 64-bit variants
Using __builtin_clz on gcc/clang, and a fallback implementation
otherwise.

Also redefine WebRtcSpl_GetSizeInBits(x) as simply 32 - clz32(x).

BUG=chromium:601787

Review-Url: https://codereview.webrtc.org/2014023002
Cr-Commit-Position: refs/heads/master@{#13014}
2016-06-02 11:02:22 +00:00
kjellander
d56d68cd27 system_wrappers: Fix include header guards.
This should have been a part of https://codereview.webrtc.org/1413333002/

The header guard PRESUBMIT rule is being enabled in
https://codereview.webrtc.org/1419203005 so things like this won't
happen in the future.

BUG=5095
NOTRY=True

Review URL: https://codereview.webrtc.org/1425693005

Cr-Commit-Position: refs/heads/master@{#10475}
2015-11-02 10:12:50 +00:00
Henrik Kjellander
98f53510b2 system_wrappers: rename interface -> include
BUG=webrtc:5095
R=tommi@webrtc.org

Review URL: https://codereview.webrtc.org/1413333002 .

Cr-Commit-Position: refs/heads/master@{#10438}
2015-10-28 17:17:50 +00:00