tree 30faaa91cb80045309c815e5a06ca6e2fa630d34
parent 835c1b69a2b4238b63ad2daf0698c4fbb5fc944f
author mtklein <mtklein@chromium.org> 1447869388 -0800
committer Commit bot <commit-bot@chromium.org> 1447869388 -0800

Fix UB in SkDivBits

DIVBITS_ITER was shifting bits up into the sign bit, which is a no-no.
This turns numer into a uint32_t to make those defined, and adds a few notes.

x >= 0 is always true for unsigned x, so we needed a few small logic refactors.

BUG=skia:3562

Review URL: https://codereview.chromium.org/1455163004