Does anybody know how to use integers larger than the "long long int" type? I have tried using arrays of ints, but mathematical functions are impossible.

> is there a way to create my own bigNum class, and use it like an int?
I assume they taught you basic math at school, like how to add multi-digit numbers together, how to subtract them, how to multiply them etc.

It's the same thing, except you deal with multiple bytes.

So here is my problem laid out as simple as I can put it.
I cant combine multiple entities together that have related data but are different
(one database table ...