* hash.c (hash_i): avoid too frequent hash conflict where key and

  value are same.  a patch from Yusuke ENDOH <mame AT tsg.ne.jp>.
  [ruby-dev:31802]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13508 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/hash.c b/hash.c
index 11d93af3b9..2b8d0a369e 100644
--- a/hash.c
+++ b/hash.c
@@ -1464,6 +1464,7 @@ hash_i(VALUE key, VALUE val, int *hval)
 {
     if (key == Qundef) return ST_CONTINUE;
     *hval ^= rb_hash(key);
+    *hval *= 137;
     *hval ^= rb_hash(val);
     return ST_CONTINUE;
 }