gistfile1.txt

.sub uniq :method
    .local pmc uarray, hash, val
    .local int i, len 

    uarray = new 'CardinalArray'
    hash = new 'CardinalHash'

    i = 0
    len = self.'Elems'()

  loop:
    if i == len goto done
    val = self[i]
    hash[val] = 0

  done:
    uarray = hash.'keys'()
    
    .return (uarray)
.end