$sort::quicksort_bit = 0x00000001;
$sort::mergesort_bit = 0x00000002;
$sort::sort_bits = 0x000000FF; # allow 256 different ones
$sort::stable_bit = 0x00000100;
$sort::quicksort_bit = 0x00000001;
$sort::mergesort_bit = 0x00000002;
$sort::sort_bits = 0x000000FF; # allow 256 different ones
$sort::stable_bit = 0x00000100;