package Graph::MSTHeapElem; use strict; use vars qw($VERSION @ISA); use Heap::Elem; use base 'Heap::Elem'; $VERSION = 0.01; sub new { my $class = shift; bless { u => $_[0], v => $_[1], w => $_[2] }, $class; } sub cmp { ($_[0]->{ w } || 0) <=> ($_[1]->{ w } || 0); } sub val { @{ $_[0] }{ qw(u v w) }; } 1;