public bool Implies(Term term)
{
for (int i=0; i<Values.Length; i++) {
if (Values [i] != DontCare &&
Values [i] != term.Values [i]) {
return false;
}
}
return true;
}
public Term Combine(Term term)
{
int positionWhereDifferent = -1;
for (int i=0; i<Values.Length; i++) {
if (Values [i] != term.Values [i]) {
if (positionWhereDifferent == -1) {
positionWhereDifferent = i;
} else {
// They're different in at least two places
return null;
}
}
}
// They're identical
if (positionWhereDifferent == -1) {
return null;
}
byte[] resultVars = new byte[Values.Length];
Array.Copy (Values, resultVars, Values.Length);
resultVars [positionWhereDifferent] = DontCare;
return new Term (resultVars);
}