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+Mon Feb  2 12:41:52 2009  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* complex.c (f_signbit): regard NaN as a positive value.
+	  [ruby-dev:37861].
+
 Mon Feb  2 12:39:00 2009  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* sample/test.rb (valid_syntax?), test/ruby/test_system.rb