diff options
author | 2009-08-25 18:14:50 +0000 | |
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committer | 2009-08-25 18:14:50 +0000 | |
commit | 593847a0e063522bef780ebac4f4072cf4cae6d8 (patch) | |
tree | a03ce9f42e025dd681cd2236cd8cffdb303c64cc | |
parent | 0da41dbf5bdf9614a3d2f1d3ebd959221bbac44b (diff) |
fix overflow in qsort compare proc
git-svn-id: http://skia.googlecode.com/svn/trunk@335 2bbb7eff-a529-9590-31e7-b0007b416f81
-rw-r--r-- | src/core/SkScan_Path.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/core/SkScan_Path.cpp b/src/core/SkScan_Path.cpp index 211259fcf7..636478dc3a 100644 --- a/src/core/SkScan_Path.cpp +++ b/src/core/SkScan_Path.cpp @@ -383,7 +383,11 @@ extern "C" { valuea = edgea->fX; valueb = edgeb->fX; } - return valuea - valueb; + + // this overflows if valuea >>> valueb or vice-versa + // return valuea - valueb; + // do perform the slower but safe compares + return (valuea < valueb) ? -1 : (valuea > valueb); } } |