* numeric.c (int_pow): even number multiplication never be negative.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12697 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/numeric.c b/numeric.c
index f3b6387bfa..eba69debb8 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2304,7 +2304,7 @@ int_pow(long x, unsigned long y)
 	    z = xz;
 	}
     } while (--y);
-    if (neg) z = -z;
+    if (neg && (y & 1)) z = -z;
     return LONG2NUM(z);
 }