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Add overflow checks for unary minus.

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This commit is contained in:
Dianne Skoll
2021-01-30 21:02:56 -05:00
parent 2123bf4b18
commit d667c15b25
3 changed files with 9 additions and 0 deletions
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6
src/utils.c
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@@ -140,3 +140,9 @@ int _private_sub_overflow(int result, int b, int old)
return 0;
}
int _private_unminus_overflow(int a, int b)
{
if (a > 0 && b > 0) return 1;
if (a < 0 && b < 0) return 1;
return 0;
}