sizeof(int) on x64?

Question

When I do sizeof(int) in my C#.NET project I get a return value of 4. I set the project type to x64, so why does it say 4 instead of 8? Is this because I\'m r

Answer 1

You may be thinking of an int pointer or System.IntPtr. This would be 8 bytes on an x64 and 4 bytes on an x86. The size of a pointer shows that you have 64-bit addresses for your memory. (System.IntPtr.Size == 8 on x64)

The meaning of int is still 4 bytes whether you are on an x86 or an x64. That is to say that an int will always correspond to System.Int32.