#include #include "digit_count.h" unsigned long power_of_two(unsigned char n) { return 1ul << n; } int main() { unsigned long n = 63 ; for(unsigned long i = 0; i <= n; i+=1) { printf("digit_count(%lu) = %u\n",power_of_two(i),digit_count(power_of_two(i))); } return 0; }