int f(int, int);

int g(int);



int main(int argc, char** argv) {

  int n1 = f(3,-5);

  n1 = g(n1);

}



int f(int p1, int p2) {

  int x;

  int a[3];

  ...

  x = g(a[2]);

  return x;

}



int g(int param) {

  return param * 2;

}