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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2002-09-28 02:41:05 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2002-09-28 02:41:05 +0000
commit70dc199fdde6a70205410e0a8cfe4aff4c50344f (patch)
tree2c7df57d1caf8d36bb9c9374a8730108017ceaa2 /hash.c
parent56201383cdf5ac4055d2eda136336624b4febde7 (diff)
* hash.c (rb_hash_become): Hash#become should check added
self-assignment. * class.c (rb_make_metaclass): metaclass of a superclass may be NULL at boot time. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2903 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'hash.c')
-rw-r--r--hash.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hash.c b/hash.c
index 3c0aeab..6e1c247 100644
--- a/hash.c
+++ b/hash.c
@@ -575,6 +575,7 @@ static VALUE
rb_hash_become(hash, hash2)
VALUE hash, hash2;
{
+ if (hash == hash2) return hash;
hash2 = to_hash(hash2);
rb_hash_clear(hash);
st_foreach(RHASH(hash2)->tbl, replace_i, hash);