#include <iostream>

using namespace std;

typedef double doub;

double i = 0.0;
const double *dp = &i;

void f(const double d) { cout << "double: " << d << endl; }
void f(double l) { cout << "long: " << l << endl; }

// note use of const here is enough to disambiguate:

void f(double *d) { cout << "pointer version 1: " << *d << endl; }
void f(const double *d) { cout << "pointer version 2: " << *d << endl; }

int main(void) {
  f(1L);
  f(1.0);
  f(i);
  f(&i);
  f(dp);

  //f(1);
}