From 8e75f9705fcd519390652dfebfef99ce3c6314a1 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 20 Apr 2009 22:09:30 +0000
Subject: * 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
---
 array.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'array.c')

diff --git a/array.c b/array.c
index 6da6ef9639..ac231a295a 100644
--- a/array.c
+++ b/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;
 }
 
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