The arrow operator: 
  sub a { my ($sub) = @_; $sub->(4) }
  sub b { print @_ };

  a(\&b);

[download]
If you're trying to be lisp-like, you probably also want to look into closures: 
  a( sub {print @_} )

[download]
--Dave

In reply to Re: Passing subroutines as arguments by dpuu
in thread Passing subroutines as arguments by mvaline

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