update doc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34514 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-02-09 13:18:26 +00:00 · 2012-02-09 13:18:26 +00:00 · 3b1276eb39
commit 3b1276eb39
parent c7f16b8662
1 changed files with 1 additions and 0 deletions
--- a/enum.c
+++ b/enum.c
@ -445,6 +445,7 @@ flat_map_i(VALUE i, VALUE ary, int argc, VALUE *argv)
 *
 *  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]
 *
 */