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fastest way to compare two arrays

by krusty (Hermit)
on Apr 13, 2011 at 23:59 UTC ( #899314=perlquestion: print w/ replies, xml ) Need Help??

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  1. or download this
    my @range = (50000 .. 65535);
    my @ports = (50000..51545,51549,51555..51999,@more);
    
  2. or download this
    my @hash{@ports} = (1) x @ports; #set indices to true for ports in use
    my $open_port;
    foreach my $port (@range){
       $open_port = $port and last unless $hash{$port};
    }
    

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