* array.c (rb_ary_push): bypass rb_ary_store().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23239 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Tue Apr 21 07:07:45 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* array.c (rb_ary_push): bypass rb_ary_store().
+
 Tue Apr 21 01:25:16 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* bignum.c (bigsub_int): subtraction without making internal

array.c

@@ -697,7 +697,14 @@ ary_take_first_or_last(int argc, VALUE *argv, VALUE ary, enum ary_take_pos_flags
 VALUE
 rb_ary_push(VALUE ary, VALUE item)
 {
-    rb_ary_store(ary, RARRAY_LEN(ary), item);
+    long idx = RARRAY_LEN(ary);
+
+    rb_ary_modify(ary);
+    if (idx >= ARY_CAPA(ary)) {
+	ary_double_capa(ary, idx);
+    }
+    RARRAY_PTR(ary)[idx] = item;
+    ARY_SET_LEN(ary, idx + 1);
     return ary;
 }