How can I call (not define) a function with a variable number of arguments in C?

Question

Is there any way to make this code shorter?

long call_f(int argc, long *argv) {
  switch (argc) {
    case 0:
      return f();
      break;
    case 1:
             


        

Answer 1

Does f have to accept a variable number of pointers to long? Can you rewrite it to accept an array and a count?