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

I don't know how you can make your code shorter but I saw this line in your code:

 return f();

From the next calls to f function, it seems that f is a function that takes variable number of arguments.

You can read in wikipedia that:

Variadic functions must have at least one named parameter, so, for instance,

char *wrong(...);

is not allowed in C.

Based on that, maybe the return f(); statement is causing you trouble?