public static Shelisp.Object Frassoc(L l, Shelisp.Object val, Shelisp.Object alist)
{
if (!L.LISTP(alist))
throw new WrongTypeArgumentException ("listp", alist);
if (L.NILP(alist))
return L.Qnil;
foreach (var el in L.CONS(alist)) {
if (!L.LISTP(el))
continue;
var cdr = L.CDR(el);
if (val.LispEqual (cdr))
return el;
}
return L.Qnil;
}
public static Shelisp.Object Fmember(L l, Shelisp.Object obj, Shelisp.Object list)
{
if (!L.LISTP (list))
throw new WrongTypeArgumentException ("listp", list);
while (L.CONSP (list)) {
if (obj.LispEqual (L.CAR(list)))
return list;
list = L.CDR (list);
}
return L.Qnil;
}
private static bool compare_equal(Shelisp.Object obj1, Shelisp.Object obj2, long hash1, long hash2)
{
return hash1 == hash2 && obj1.LispEqual (obj2);
}
public static Shelisp.Object Fequal(L l, Shelisp.Object o1, Shelisp.Object o2)
{
if (L.NILP(o1))
return L.NILP(o2) ? L.Qt : L.Qnil;
return o1.LispEqual (o2) ? L.Qt : L.Qnil;
}
public static AssertResult NotEqual(Shelisp.Object o1, Shelisp.Object o2, string description = null)
{
return (o1.LispEqual (o2)) ? Fail(description) : Succeed(description);
}