view filter.pl @ 5:e91d6f908222 boosterpack

[svn r7] finished!
author robert
date Tue, 08 Sep 2009 06:55:23 -0400
parents d7dd496a4fa6
children 8c6d2ce90677
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1 sub filter
2 {
4 $ref = shift;
5 @list = @_;
6 my @ret = ();
8 for $element(@list)
9 {
10 if ($ref->($element))
11 {
12 push @ret, $element;
13 }
14 }
16 return @ret
18 }
23 @test = (1,2,3,4,5,6);
25 sub even
26 {
27 return ($_[0]%2 == 0);
28 }
30 @rr = &filter(\&even, @test);
32 print "@rr";