#include <iostream>

template < typename T >
int spaceOf ( T x ) {
    int bytes = sizeof(x);
    return bytes/4 + (bytes%4>0);   // size of memory cell is 4 bytes
}
/*
template < typename T >
int spaceOf () {
  int bytes = sizeof(T);
  return bytes/4 + (bytes%4>0);
}
*/
/*
template < typename T1, typename T2 >
void f ( T1 v1, T2 v2 ) {
  std::cout << v1 << " " << v2 << std::endl;
}
*/
/*
template < int N, typename T >
T power ( T v ) {
   T res = v;
   for ( int i=1; i<N; i++ )
      res *= v;
   return res;
}
*/


int main() {
    int x1=199;
    double x2=2.99;

    // implicit template instantiation
    std::cout << spaceOf(x1) << std::endl;
    std::cout << spaceOf(x2) << std::endl;
    std::cout << "-------------" << std::endl;
    /*
    // explicit template instantiation
    std::cout << spaceOf<int>() << std::endl;
    std::cout << spaceOf<double>() << std::endl;
    std::cout << "-------------" << std::endl;
    std::cout << spaceOf<int>(x1) << std::endl;
    std::cout << spaceOf<double>(x2) << std::endl;
    */
    /*
    f(2.2,1); // implicit
    f<double,int>(2.2,1); // explicit complete
    f<double>(2.2,1);     // explicit incomplete
    f<int,int>(2.2,1);    // explicit complete
    */
    /*
    std::cout << power<3>(2) << std::endl;
    std::cout << power<5, int>(1.2) << std::endl;
    std::cout << power<5>(1.2) << std::endl;
    */
    return 0;
}