Ying Liu wrote at Thu, 05 Jun 2003 20:20:02 -0500:
> I finally install the Heap module. But I run the example of the CPAN:
> foreach $i ( 1..100 )
> {
> $elem = NumElem($i);
> $heap->add($elem);
> }
> }
> It told me:
> Can't locate auto/Heap/add.al in @INC
>
> I search this directory but didn't find the add.al, is it caused by the
> wrong installing or something else?
There seems to be two bugs in the documentation.
First, you have to use a specific Heap-Class for the constructor
(e.g. Heap::Fibonacci),
Second, there is no extract_maximum but an extract_minimum function in the
heap module.
Together, the following snippet runs:
use Heap::Fibonacci;
my $heap = Heap::Fibonacci->new;
my $elem;
use Heap::Elem::Num(NumElem);
foreach $i ( 1..100 ) {
$elem = NumElem( $i );
$heap->add( $elem );
}
while( defined( $elem = $heap->extract_minimum ) ) {
print "Smallest is ", $elem->val, "\n";
}
I'd rather suggest to contact the author of this module,
as it seems really to be a bug that has to be fixed.
Greetings,
Janek
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