int doublew(x) 
int x; 
{ return x*2; }

int triple( y) 
int y; 
{ return y*3; }

main() { 
  int i = 2; 
  int a, b;

  a = doublew(i++); 
  b = triple(i++);
  printf("Got %d \n", a+b); 
}

Example 4: A mutant.