If you're not afraid to call it like it is, then it sure is possible. It did take three refactors until I got it as clear as this, though:

#!/usr/bin/perl
use strict;
use warnings;

my( $count1, $count2 );

sub a1 {
    a2b2( --$_[ 1 ],  1 );
    a2b2(   $_[ 0 ], !1 );
}

sub a2b2 {
    $_[ 1 ] or goto a2;
    {
        b2: $count2++;
        a2: $count1++;
        $_[ 0 ]-- and redo;
    }
}

my( $n1, $n2 ) = ( 100, 50 );
a1( $n1, $n2 );

print "c1: $count1; c2: $count2\n";

[download]

Makeshifts last the longest.

In reply to Re^10: Who's a thief? (No memory growth with magic goto) by Aristotle
in thread Who's a thief? -- the follow up by Ovid

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