Query: heap::elem::refrev
OS: debian
Section: 3pm
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
Heap::Elem::RefRev(3pm) User Contributed Perl Documentation Heap::Elem::RefRev(3pm)NAMEHeap::Elem::RefRev - Reversed Object Reverence Heap ElementsSYNOPSISuse Heap::Elem::RefRev( RefRElem ); use Heap::Fibonacci; my $heap = Heap::Fibonacci->new; my $elem; foreach $i ( 1..100 ) { $obj = myObject->new( $i ); $elem = RefRElem( $obj ); $heap->add( $elem ); } while( defined( $elem = $heap->extract_top ) ) { # assume that myObject object have a method I<printable> print "Largest is ", $elem->val->printable, " "; }DESCRIPTIONHeap::Elem::RefRev is used to wrap object reference values into an element that can be managed on a heap. Each referenced object must have a method cmp which can compare itself with any of the other objects that have references on the same heap. These comparisons must be con- sistant with normal arithmetic. The top of the heap will have the largest (according to cmp) element still remaining. (See Heap::Elem::Ref if you want the heap to always return the smallest element.) The details of the Elem interface are described in Heap::Elem. The details of using a Heap interface are described in Heap.AUTHORJohn Macdonald, john@perlwolf.comCOPYRIGHTCopyright 1998-2007, O'Reilly & Associates. This code is distributed under the same copyright terms as perl itself.SEE ALSOHeap(3), Heap::Elem(3), Heap::Elem::Ref(3). perl v5.8.8 2007-10-23 Heap::Elem::RefRev(3pm)