diff options
| author |  Mike Reed <reed@google.com> | 2018-02-15 11:17:56 -0500 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2018-02-15 17:14:19 +0000 |
| commit | 36c0b57698a2e1fd181e5f1569fbf70cd695e9b8 (patch) | |
| tree | 471296ebdf463a74a681373f2747434520330c19 /include | |
| parent | acf939ab58774593b49b2335369241bacffa0598 (diff) | |
use safe increment for edge walker
Bug: oss-fuzz:6126
Change-Id: I8f6865cbbbfbe37acf940cc2d4ae93204ba7168d
Reviewed-on: https://skia-review.googlesource.com/107783
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/private/SkSafe32.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/private/SkSafe32.h b/include/private/SkSafe32.h index 40d4121b52..25058d2c76 100644 --- a/include/private/SkSafe32.h +++ b/include/private/SkSafe32.h @@ -22,6 +22,9 @@ static constexpr int32_t Sk32_sat_sub(int32_t a, int32_t b) { // To avoid UBSAN complaints about 2's compliment overflows // +static constexpr int32_t Sk32_can_overflow_add(int32_t a, int32_t b) { + return (int32_t)((uint32_t)a + (uint32_t)b); +} static constexpr int32_t Sk32_can_overflow_sub(int32_t a, int32_t b) { return (int32_t)((uint32_t)a - (uint32_t)b); } |