From c06bb92b866e18ec71761a493fd7f8773e308f80 Mon Sep 17 00:00:00 2001
From: mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 21 Jan 2008 15:33:32 +0000
Subject: [PATCH] * bignum.c (big_shift): fix a bug that caused infinite loop
 when   left shifting.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15160 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 bignum.c  | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 68e8b13f3e..dc8f5da8de 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jan 22 00:30:08 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* bignum.c (big_shift): fix a bug that caused infinite loop when
+	  left shifting.
+
 Mon Jan 21 20:09:38 2008  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* lib/date.rb (marshal_load): initialize the cache.
diff --git a/bignum.c b/bignum.c
index 8b694d91ae..5ed026acdf 100644
--- a/bignum.c
+++ b/bignum.c
@@ -1851,7 +1851,7 @@ static VALUE big_rshift(VALUE, unsigned long);
 static VALUE big_shift(VALUE x, int n)
 {
     if (n < 0)
-	return big_lshift(x, (unsigned int)n);
+	return big_lshift(x, (unsigned int)-n);
     else if (n > 0)
 	return big_rshift(x, (unsigned int)n);
     return x;