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Prevent floating-point exception if we evaluate $IntMin * (-1)

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This commit is contained in:
Dianne Skoll
2021-08-30 12:31:43 -04:00
parent 9b2fdad56c
commit 295aeb0ed8
3 changed files with 18 additions and 1 deletions
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5
src/expr.c
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@@ -940,6 +940,11 @@ static int Multiply(void)
}
if (v1.type == INT_TYPE && v2.type == INT_TYPE) {
/* Prevent floating-point exception */
if ((v2.v.val == -1 && v1.v.val == INT_MIN) ||
(v1.v.val == -1 && v2.v.val == INT_MIN)) {
return E_2HIGH;
}
int old = v1.v.val;
v1.v.val *= v2.v.val;
if (v2.v.val != 0) {