Does it really matter to distinct between short, int, long?

Question

In my C# app, I would like to know whether it is really important to use short for smaller numbers, int for bigger etc. Does the memory consumption really matter?

Answer 1

For C# apps that aren't trying to mirror some sort of structure from a file, you're better off using ints or whatever your native format is. The only other time it might matter is if using arrays on the order of millions of entries. Even then, I'd still consider ints.