packages feed

ychr-0.1.0.0: test/golden/bcd/bcd.chr

:- module(bcd, [result/1]).

:- chr_constraint a/0, b/0, c/0, d/0, bcd/1, result/1.

a ==> b.
a, b ==> c.
a <=> true.
a, b ==> d.

bcd(R), b, c, d <=> R = "bcd".

result(R) <=> a, bcd(R).