What does the C++ standard state the size of int, long type to be?

Question

I\'m looking for detailed information regarding the size of basic C++ types. I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler.

Answer 1

Nope, there is no standard for type sizes. Standard only requires that:

sizeof(short int) <= sizeof(int) <= sizeof(long int)

The best thing you can do if you want variables of a fixed sizes is to use macros like this:

#ifdef SYSTEM_X
  #define WORD int
#else
  #define WORD long int
#endif

Then you can use WORD to define your variables. It's not that I like this but it's the most portable way.