No $pointer. @buffer always ordered last to most recent.
my @buffer = (0) x 5;
for (0..30) {
    print "old value: ", $buffer[0], "\n";
    print "new value: $_\n";
    shift @buffer;
    push  @buffer, $_;
}

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In reply to Re^3: Circular buffer by repellent
in thread Circular buffer by Anonymous Monk

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