* numeric.c (int_pow): fix previous nubu's commit.

	* test/ruby/test_fixnum.rb: new test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12699 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 2 deletions

diff --git a/numeric.c b/numeric.c
index 7402f1527c..f0b827aacc 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2188,7 +2188,10 @@ int_pow(x, y)
     long z = 1;
 
     if (neg) x = -x;
-    if (y & 1) z = x;
+    if (y & 1)
+	z = x;
+    else
+	neg = 0;
     y &= ~1;
     do {
 	while (y % 2 == 0) {
@@ -2209,7 +2212,7 @@ int_pow(x, y)
 	    z = xz;
 	}
     } while (--y);
-    if (neg && (y & 1)) z = -z;
+    if (neg) z = -z;
     return LONG2NUM(z);
 }