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+Thu Dec 15 13:15:51 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* regcomp.c (onig_region_memsize): implemented for memsize_of().
+
+	* ext/objspace/objspace.c (memsize_of): use it.
+
 Thu Dec 15 10:44:54 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* array.c (rb_ary_reject_bang, rb_ary_delete_if): update rdoc.