From 217db90e8705162bef4428c7d608a7d6fdf18b2a Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 16 Jul 2007 15:56:16 +0000
Subject: * numeric.c (fix_pow): integer power calculation: 0**n => 0,   1**n
 => 1, -1**n => 1 (n: even) / -1 (n: odd).

* test/ruby/test_fixnum.rb (TestFixnum::test_pow): update test
  suite.  pow(-3, 2^64) gives NaN when pow(3, 2^64) gives Inf.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_fixnum.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'test')

diff --git a/test/ruby/test_fixnum.rb b/test/ruby/test_fixnum.rb
index 57999d4b03..d17b1f8d49 100644
--- a/test/ruby/test_fixnum.rb
+++ b/test/ruby/test_fixnum.rb
@@ -12,7 +12,7 @@ class TestFixnum < Test::Unit::TestCase
 
   def test_pow
     [1, 2, 2**64, 2**63*3, 2**64*3].each do |y|
-      [1, 3].each do |x|
+      [-1, 0, 1].each do |x|
         z1 = x**y
         z2 = (-x)**y
         if y % 2 == 1
-- 
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