Two test cases for functions in https://lobste.rs/s/e7vp0t/arithmetical_way_check_for_number

arithmetical_way_testcases_2.c

#include<limits.h>
#include<stdio.h>
#include<math.h>

// arithmetical definition of "abs"
int abs(int i) {
  return pow((i*i), 0.5);
}

int f1(int num)
{
  const int result = abs(num) - num;
  return result;
}

int f2(int num)
{
  const int result = num - abs(num);
  return result;
}

int main()
{
  const int test_value = INT_MIN;
  const int result1 = f1(test_value);
  const int result2 = f2(test_value);
  printf("f1:%d\n", result1);
  printf("f2:%d\n", result2);
  return 0;
}