Not better performance solution:
use strict;
use Benchmark;

my @convert;

for(0..10000){
  $convert[$_] = '0' x (4 - length$_) . $_
}

my ($val1,$val2) = (int rand(10000),int rand(10000));

timethese 2_000_000 => {
  array  => sub {
    @convert[$val1,$val2]
  },
  nobull => sub {
    $val1 * 10000 + $val2
  }
}

#where connectm can be
#sub connectm {
# my ($val1,$val2) = @_;
# @convert[$val1,$val2]
#}

__END__

Benchmark: timing 2000000 iterations of array, nobull...
     array:  2 wallclock secs ( 0.78 usr +  0.00 sys =  0.78 CPU) @ 25
+57544.76/s (n=2000000)
    nobull:  1 wallclock secs ( 0.52 usr +  0.00 sys =  0.52 CPU) @ 38
+83495.15/s (n=2000000)

[download]

In reply to Re: zero padding by sh1tn
in thread zero padding by zentara

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.