1 % 0 should return NaN; close #283

040b57fa · Yukihiro Matsumoto · c7b1622f · 040b57fa
Commit 040b57fa authored Jun 15, 2012 by Yukihiro Matsumoto
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src/numeric.c src/numeric.c +2 -3

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--- a/src/numeric.c
+++ b/src/numeric.c
@@ -767,12 +767,11 @@ static mrb_value
 fix_mod(mrb_state *mrb, mrb_value x)
 {
  mrb_value y;
-  mrb_int a;
+  mrb_int a, b;
  mrb_get_args(mrb, "o", &y);
  a = mrb_fixnum(x);
-  if (FIXNUM_P(y)) {
+  if (FIXNUM_P(y) && (b=mrb_fixnum(y)) != 0) {
    mrb_int mod;
    fixdivmod(mrb, a, mrb_fixnum(y), 0, &mod);