From 0c8111213abddc16af5ba21586a4626d4dabe384 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 1 Oct 2006 14:45:38 +0000
Subject: * array.c (rb_ary_shift): should not move memory region if array  
 body is shared.  a patch from Kent Sibilev <ksruby at gmail.com>.  
 [ruby-core:08922]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@11058 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 array.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'array.c')

diff --git a/array.c b/array.c
index 6df82f7fa..2e9d927f6 100644
--- a/array.c
+++ b/array.c
@@ -501,7 +501,7 @@ rb_ary_shift(ary)
     rb_ary_modify_check(ary);
     if (RARRAY(ary)->len == 0) return Qnil;
     top = RARRAY(ary)->ptr[0];
-    if (RARRAY_LEN(ary) < ARY_DEFAULT_SIZE) {
+    if (RARRAY_LEN(ary) < ARY_DEFAULT_SIZE && !FL_TEST(ary, ELTS_SHARED)) {
 	MEMMOVE(RARRAY_PTR(ary), RARRAY_PTR(ary)+1, VALUE, RARRAY_LEN(ary));
     }
     else {
-- 
cgit