"int" doesn't reveal the intention of the programmer - they might just have used it because it's "int", not because it changes size based on what system you are

"int" doesn't reveal the intention of the programmer - they might just have used it because it's "int", not because it changes size based on what system you are targeting. If they used 'int_fast16_t' from <stdint.h>, you have at least an idea that they considered that it might only be 16 bits, and that it can be a larger type on systems where operations on 64-bit types are faster.