matz	2007-07-17 00:56:16 +0900 (Tue, 17 Jul 2007)

  New Revision: 12808

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/numeric.c
    branches/ruby_1_8/test/ruby/test_fixnum.rb

  Log:
    * 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.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=12808&r2=12807
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/test/ruby/test_fixnum.rb?r1=12808&r2=12807
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/numeric.c?r1=12808&r2=12807