explicit normalization -0.0 to 0.0

f44acf7b · Yukihiro Matsumoto · 1eb02552 · f44acf7b
Commit f44acf7b authored May 23, 2012 by Yukihiro Matsumoto
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src/numeric.c src/numeric.c +2 -1

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--- a/src/numeric.c
+++ b/src/numeric.c
@@ -372,7 +372,8 @@ flo_hash(mrb_state *mrb, mrb_value num)
  int i, hash;
  d = (mrb_float)mrb_fixnum(num);
-  if (d == 0) d = fabs(d);
+  /* normalize -0.0 to 0.0 */
+  if (d == 0) d = 0.0;
  c = (char*)&d;
  for (hash=0, i=0; i<sizeof(mrb_float);i++) {
    hash = (hash * 971) ^ (unsigned char)c[i];