fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template<class T>
  5. class Number
  6. {
  7.     T number;
  8. public:
  9.     template <class U> friend class Number;
  10.     Number(T num)
  11.     {
  12.         number=num;
  13.     }
  14.     template<class U>
  15.     Number<T>& operator=(const Number<U>& num)
  16.     {
  17.         number=static_cast<T>(num.number);
  18.         return *this;
  19.     }
  20.     friend int main();
  21. };
  22.  
  23. int main() {
  24. 	Number<char> c(10);
  25. 	Number<int> d(20);
  26. 	cout << (int)c.number << " " << d.number << endl;
  27. 	d = c;
  28. 	cout << (int)c.number << " " << d.number << endl;
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 4372KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
10 20
10 10
https://ideone.com/aiUMEG
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!