Is it possible to use dynamic memory allocation, or some other method, to make a 1000-bit (or 1024-bit) integer variable?
Obviously, this is an insane amount, but I'm just using this amount as an example. Basically, can I make an integer any size I want? I'm thinking maybe dynamic memory allocation would work, or perhaps something to do with char arrays?
Depends on what exactly you mean.
If you mean "a fully functional int that the compiler knows how to handle and can be used with the built-in arithmetic operators", the answer would be no.
If you mean "allocate an arbitrary size of memory that I'll treat as a continuous integer and write my own custom mathematical functions for", the answer is most definitely yes, and there are in fact several libraries that do exactly that.
