* hash.c (rb_hash_replace): should copy compare_by_identity status as well.

  [ruby-core:24728]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@24382 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 9 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 453902c6b..e376d3142 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Aug  4 06:30:01 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* hash.c (rb_hash_replace): should copy compare_by_identity status as well.
+	  [ruby-core:24728]
+
 Tue Aug  4 05:43:03 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* thread.c (recursive_push): need to set UNTRUST.  [ruby-dev:38997]
diff --git a/hash.c b/hash.c
index 74b654ee1..ce8af6c6d 100644
--- a/hash.c
+++ b/hash.c
@@ -1060,6 +1060,10 @@ rb_hash_replace(VALUE hash, VALUE hash2)
     hash2 = to_hash(hash2);
     if (hash == hash2) return hash;
     rb_hash_clear(hash);
+    if (RHASH(hash2)->ntbl) {
+	rb_hash_tbl(hash);
+	RHASH(hash)->ntbl->type = RHASH(hash2)->ntbl->type;
+    }
     rb_hash_foreach(hash2, replace_i, hash);
     RHASH(hash)->ifnone = RHASH(hash2)->ifnone;
     if (FL_TEST(hash2, HASH_PROC_DEFAULT)) {