/*
  From http://www.dtreg.com/gep.htm
  """
  The output parity value should be 1 if there are an odd number of 
  inputs with the value 1, and the output should be 0 if there are 
  an even number of inputs with the value 1. 
  """

  This is XOR.

  maxCount = 1
  code = (A ^ B) = [[[0,0],0],[[0,1],1],[[1,0],1],[[1,1],0]] = [[1,1] = 0]
  code = (B ^ A) = [[[0,0],0],[[0,1],1],[[1,0],1],[[1,1],0]] = [[1,1] = 0]


  Cf http://hakank.org/jgap/odd_parity2.conf
*/
data(odd_parity2,Data,Vars,Unknown,Ops,Constants,MaxC) :-
  Data =  [
           [[0,0],0],
           [[0,1],1],
           [[1,0],1],
           [[1,1],0] 
  ],

  Unknown = [1,1], 
  Vars = ["A","B"],
  Ops = new_map([infix=["+","-","*","/","mod","^"]]),
  % Ops = ["^"],  
  Constants = 1..1,
  MaxC = 2.