llList2List comparison

list set = ["la","de","da","de"];
list data = [];

default
{
    state_entry()
    {
        llSay(0, (string)(llList2List(set,0,3) != data));
        llSay(0, (string)(data != llList2List(set,0,3)));
    }
}

Output:

Object: 4
Object: -4

What. The. Hell? This makes comparing a chunk of one list against another list impossible. (EDIT: Lemme clarify.)

list set = ["la","de","da","de"];
list data = [];

default
{
    state_entry()
    {
        if(llList2List(set,0,3) != data & TRUE)
        {
            llSay(0,"Yay!");
        }
        else
        {
            llSay(0,"Boo!");
        }
    }
}

Output:

Object: Boo!

Since &&'s are depreciated, according to Wiki, I should only be using &'s, right?
(EDIT: Damnit, I could have SWORN I saw that boolean stuff was depreciated in favor of bitwise. Am I going crazy?)

What? Where did you see that? That's not the case, I can assure you. Edit: Oh, I see you've realized that as well.

Second, why are you using them at all?

list set = ["la","de","da","de"];
list data = [];

default
{
    state_entry()
    {
        if (llList2List(set,0,3) != data)
        {
            llSay(0,"Yay!");
        }
        else
        {
            llSay(0,"Boo!");
        }
    }
}

Doesn't this function correctly?

Yes, that functions correctly. It's a TRUE statement. But it's NOT TRUE. It's 4. Or -4. Which screws with bitwise comparisons. Which doesn't make sense to me. Which means if I ever bitwise compare it to something else, the if() statement is ALWAYS false. No matter what.