whiley_test_file 0.6.2

js.compile.ignore=true
=====
>>> main.whiley
function setz(int[] items, int x) -> (int[] r)
requires x >= 0 && x < |items|
ensures |r| == |items|
ensures all { i in 0..|items| | i == x || items[i] == r[i] }
ensures r[x] == 0:
    return items[x:=0]
    
public export method test():
   int[] xs = [1,2,3]
   assert setz(xs,0) == [0,2,3]
   assert setz(xs,1) == [1,0,3]
   assert setz(xs,2) == [1,2,0]   
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