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merges r24361 from trunk into ruby_1_9_1.

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* numeric.c (flo_hash): normalize -0.0 to 0.0.  [ruby-core:24577]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24458 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yugui 2009-08-08 15:31:53 +00:00
parent 04f65b4127
commit 208ec9936a
3 changed files with 8 additions and 1 deletions
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2
numeric.c
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@ -897,6 +897,8 @@ flo_hash(VALUE num)
int hash;
d = RFLOAT_VALUE(num);
/* normalize -0.0 to 0.0 */
if (d == 0.0) d = 0.0;
hash = rb_memhash(&d, sizeof(d));
return INT2FIX(hash);
}