akr	2012-02-09 22:18:26 +0900 (Thu, 09 Feb 2012)

  New Revision: 34514

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=34514

  Log:
    update doc.

  Modified files:
    trunk/enum.c

Index: enum.c
===================================================================
--- enum.c	(revision 34513)
+++ enum.c	(revision 34514)
@@ -445,6 +445,7 @@
  *
  *  If no block is given, an enumerator is returned instead.
  *
+ *     [1, 2, 3, 4].flat_map { |e| [e, -e] } #=> [1, -1, 2, -2, 3, -3, 4, -4]
  *     [[1, 2], [3, 4]].flat_map { |e| e + [100] } #=> [1, 2, 100, 3, 4, 100]
  *
  */

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