c++ - passing a constructor with template class arguments to a another function -

i have class constructor has initialised template class arguments. now, need pass constructor of class method in main(). trying so, throws error , not able solution it.

template<class k>  class student {      friend void printfunction();     public:     student(k val)     {std::cout<<val;}  };  void printfunction(student object) {      ......  }  int main() {      student <int> object(10);     printfunction(object); //this line throws error   } error: use of class template 'student' requires template arguments 

there several problems code. first , easy 1 pass class name student call of printfunction. should call printfunction(object) instead.

second, printfunction accept instance of template class student, need make template well. see working example below.

#include <iostream>  template<class k> class student;  template<class k> void printfunction(student<k> object) {     std::cout << object.val; }   template<class k> class student {     friend void printfunction<>(student<k>);  public:     student(k val) : val(val) {}  private:     k val; };    int main() {     student<int> object(10);     printfunction(object);  }