Just use an array, and a scalar to point into the array. 

my @buffer = (0) x 5;
my $pointer = 0;
for (0..30) {
    print "old value: ", $buffer[$pointer % @buffer], "\n";
    print "new value: $_\n";
    $buffer[$pointer % @buffer] = $_;
    $pointer++;
}

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Perl 6 - second systems done right

In reply to Re: Circular buffer by moritz
in thread Circular buffer by Anonymous Monk

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