Fizzbuzz w/o if

#include <stdio.h>
#include <stdlib.h>

int main() {
  void **actions = (void **)malloc(4);
  actions[0] = &&number;
  actions[1] = &&fizz;
  actions[2] = &&buzz;
  actions[3] = &&fizzbuzz;
  int a = 0;
  int b, c;
loop:
  a++;
  b = !(a % 3);
  c = !(a % 5) << 1;
  goto *actions[b | c];
number:
  printf("%d\n", a);
  goto loop;
fizz:
  printf("fizz\n");
  goto loop;
buzz:
  printf("buzz\n");
  goto loop;
fizzbuzz:
  printf("fizzbuzz\n");
  goto loop;
}