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Fixed possible division by zero in 'codegen.c' reported by 'clang-analyzer'

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This commit is contained in:
Jose Narvaez
2014-06-13 10:09:28 +01:00
parent da55b50409
commit 44a5809224
1 changed files with 15 additions and 13 deletions
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src/codegen.c
+15 -13
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@@ -1106,21 +1106,23 @@ readint_mrb_int(codegen_scope *s, const char *p, int base, mrb_bool neg, mrb_boo
codegen_error(s, "malformed readint input");
}
if (neg) {
if ((MRB_INT_MIN + n)/base > result) {
*overflow = TRUE;
return 0;
if(base > 0) {
if (neg) {
if ((MRB_INT_MIN + n)/base > result) {
*overflow = TRUE;
return 0;
}
result *= base;
result -= n;
}
result *= base;
result -= n;
}
else {
if ((MRB_INT_MAX - n)/base < result) {
*overflow = TRUE;
return 0;
else {
if ((MRB_INT_MAX - n)/base < result) {
*overflow = TRUE;
return 0;
}
result *= base;
result += n;
}
result *= base;
result += n;
}
p++;
}