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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 06:51:36 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* encoding.c (rb_filesystem_encoding): Windows' filesystem encoding is