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+Tue Oct  9 16:33:32 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* array.c (rb_ary_permutation, rb_ary_combination, rb_ary_product):
+	  hide internal buffer objects.  [ruby-dev:31982]
+
 Tue Oct  9 16:00:32 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* parse.y (parser_read_escape, parser_tokadd_escape): check code range.