From ea2cb282aeba0457aa775d5dbfa1da6810fafa45 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 27 Apr 2007 08:05:21 +0000
Subject: [PATCH] * numeric.c (int_pow): bugfix of overflow detection.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12228 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 4 +++-
 numeric.c | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index a8f2f536d8..4251d89598 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,6 @@
-Fri Apr 27 12:54:35 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Fri Apr 27 17:05:41 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* numeric.c (int_pow): bugfix of overflow detection.
 
 	* numeric.c (int_pow): rb_big_pow() may return other than Bignum.
 
diff --git a/numeric.c b/numeric.c
index 1425348a95..db847567d0 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2283,7 +2283,7 @@ int_pow(long x, unsigned long y)
 	}
 	{
 	    long xz = x * z;
-	    if (xz < z || xz < x || !POSFIXABLE(xz)) {
+	    if (!POSFIXABLE(xz) || xz / x != z) {
 		goto bignum;
 	    }
 	    z = xz;