Is the size of an array constrained by the upper limit of int (2147483647)?

Question

I\'m doing some Project Euler exercises and I\'ve run into a scenario where I have want arrays which are larger than 2,147,483,647 (the upper limit of

Answer 1

I believe that even within a 64 bit CLR, there's a limit of 2GB (or possibly 1GB - I can't remember exactly) per object. That would prevent you from creating a larger array. The fact that Array.CreateInstance only takes Int32 arguments for sizes is suggestive too.

On a broader note, I suspect that if you need arrays that large you should really change how you're approaching the problem.