language Is in C

Exercise 3.24. Implement the following specification: 1/* Removes all vowels rom string in and writes the result 2 * to out. Returns O if successful and -1 if either in or * out is NULL. 4 */ 5 int xvowelize (char * in, char * out); For example, consider this unit test: #include #include am + 41/1 Write avowelize here. 6 int main() { char str [] = "Hello universe!"; char out [32]; int err = xvowelize (str, out); assert (!err); printf("%s %s ", str, out); return 0; 13} Executing it should yield the following on the terminal: Hello universe! Hll nyrs ! write a unit-test main program, even when it is not explicitly required