Is it safe to assume that a pointer is the size of an int in C?

Question

In designing a new programming language, is it safe to assume that a C int and a pointer are the same size on the machine?

Answer 1

I think you mean size of data types as defined by platform not C lang. To best of my knowledge C doesn't define any specific size for the data types. The answer to your question is you can't assume this, for example On win32 sizeof(int) == sizeof(pointer) == 4 bytes however on win64 sizeof(int) == 4 and sizeof(pointer) == 8