public BooleanVar and(BooleanVar other)
{
assertAssignment();
// lazy and
return(_bool_value
? new BooleanVar(_bool_value && other.getValue(), is_const && other.is_const)
: new BooleanVar(false, is_const && other.is_const));
}
public BooleanVar xor(BooleanVar other)
{
assertAssignment();
return(new BooleanVar(_bool_value ^ other.getValue(), is_const && other.is_const));
}
public BooleanVar or(BooleanVar other)
{
assertAssignment();
// lazy or
return(_bool_value ? new BooleanVar(true) : new BooleanVar(_bool_value || other.getValue(), is_const && other.is_const));
}