Iterating over all unsigned integers in a for loop

Question

Let\'s say I want to iterate over all integers in a for loop. For the sake of discussion, assume I am calling some unknown function f(unsigned x) f

Answer 1

Use a larger integer type:

#include 
#include 

int main() {
    for (unsigned long i = 0; i <= UINT_MAX; i++) {
        f(i);
    }
}

This version uses stdint for more consistency

#include 
#include 

int main() {
    for (uint_fast64_t i = 0; i <= UINT32_MAX; ++i) {
        f(i);
    }
}