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+Mon Nov 19 16:04:08 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* array.c (rb_ary_permutation): gives all permutations of elements
+	  if no argument given.  a patch from Yusuke ENDOH <mame AT tsg.ne.jp>.
+	  [ruby-dev:32309]
+
 Mon Nov 19 02:44:07 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* compile.c (iseq_compile_each): alias and undef accept dsyms as well