From 7ba0cd826e6fb6555bb5eb79bc84f8167294afe9 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 8 Jan 2007 19:02:50 +0000
Subject: * string.c (rb_str_upto): String#upto from empty string makes  
 inifinite loop.  [ruby-core:09864]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@11515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 string.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/string.c b/string.c
index fb8afdbeda..3261db61ed 100644
--- a/string.c
+++ b/string.c
@@ -1463,7 +1463,7 @@ rb_str_upto(beg, end, excl)
 	StringValue(current);
 	if (excl && rb_str_equal(current, end)) break;
 	StringValue(current);
-	if (RSTRING(current)->len > RSTRING(end)->len)
+	if (RSTRING(current)->len > RSTRING(end)->len || RSTRING(current)->len == 0)
 	    break;
     }
 
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