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-rw-r--r--hash.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/hash.c b/hash.c
index 06d0ce9e68..5172e13b57 100644
--- a/hash.c
+++ b/hash.c
@@ -1182,6 +1182,21 @@ replace_i(VALUE key, VALUE val, VALUE hash)
return ST_CONTINUE;
}
+static VALUE
+rb_hash_initialize_copy(VALUE hash, VALUE hash2)
+{
+ Check_Type(hash2, T_HASH);
+
+ if (!RHASH_EMPTY_P(hash2))
+ RHASH(hash)->ntbl = st_copy(RHASH(hash2)->ntbl);
+ if (FL_TEST(hash2, HASH_PROC_DEFAULT)) {
+ FL_SET(hash, HASH_PROC_DEFAULT);
+ }
+ RHASH_IFNONE(hash) = RHASH_IFNONE(hash2);
+
+ return hash;
+}
+
/*
* call-seq:
* hsh.replace(other_hash) -> hsh
@@ -3359,7 +3374,7 @@ Init_Hash(void)
rb_define_singleton_method(rb_cHash, "[]", rb_hash_s_create, -1);
rb_define_singleton_method(rb_cHash, "try_convert", rb_hash_s_try_convert, 1);
rb_define_method(rb_cHash,"initialize", rb_hash_initialize, -1);
- rb_define_method(rb_cHash,"initialize_copy", rb_hash_replace, 1);
+ rb_define_method(rb_cHash,"initialize_copy", rb_hash_initialize_copy, 1);
rb_define_method(rb_cHash,"rehash", rb_hash_rehash, 0);
rb_define_method(rb_cHash,"to_hash", rb_hash_to_hash, 0);