POSN-ORDER

[GENERIC-FUNCTION]


OM 6.1
Function Reference
ARGUMENTS:
  - list a list  
  - test test function [default = (quote <)]

Description:

Returns a list of indices according to a sort function.
The indexes of items in <list> (from 0 to length-1) will be sorted according to <test>.
<test> may be a function or function name (symbol) for a binary comparison function.

Ex. (posn-order '(4 5 6 7 8) '<) => (0 1 2 3 4)
Ex. (posn-order '(4 5 6 7 8) '>) => (4 3 2 1 0)