#include <iostream>

#include <boost/assign.hpp>



using namespace std;

using namespace boost::assign;



template <typename T1>

void cons(T1)

{

   cout << "cons 1" << endl;

}



template <typename T1, typename T2>

void cons(T1, T2)

{

   cout << "cons 2" << endl;

}



template <typename T1, typename T2, typename T3>

void cons(T1, T2, T3)

{

   cout << "cons 3" << endl;

}



template <typename T1, typename T2, typename T3, typename T4>

void cons(T1, T2, T3, T4)

{

   cout << "cons 4" << endl;

}



int main()

{

   cout << "calling cons(list_of(3)(5), 4, 5)" << endl;

   cons(list_of(3)(5), 4, 5);

   

   cout << "calling cons( (list_of(3)(5), 4, 5) )" << endl;

   cons( (list_of(3)(5), 4, 5) );



   return 0;

}