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Heap::Elem::Str(3) User Contributed Perl Documentation Heap::Elem::Str(3)

Heap::Elem::Str - String Heap Elements

  use Heap::Elem::Str( StrElem );
  use Heap::Fibonacci;

  my $heap = Heap::Fibonacci->new;
  my $elem;

  foreach $i ( 'aa'..'bz' ) {
      $elem = StrElem( $i );
      $heap->add( $elem );
  }

  while( defined( $elem = $heap->extract_top ) ) {
      print "Smallest is ", $elem->val, "\n";
  }

Heap::Elem::Str is used to wrap string values into an element that can be managed on a heap. The top of the heap will have the smallest element still remaining. (See Heap::Elem::StrRev if you want the heap to always return the largest element.)

The details of the Elem interface are described in Heap::Elem.

The details of using a Heap interface are described in Heap.

John Macdonald, john@perlwolf.com

Copyright 1998-2007, O'Reilly & Associates.

This code is distributed under the same copyright terms as perl itself.

Heap(3), Heap::Elem(3), Heap::Elem::StrRev(3).
2007-04-28 perl v5.32.1

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