fork download 
  1. class Encapsulator
  2. {
  3.   protected:
  4.     int i;
  5.   public:
  6.     Encapsulator(int v) : i(v) {}
  7. };
  8.  
  9. Encapsulator f(int x) { return x + 2; }
  10.  
  11. #include <iostream>
  12. int main( void )
  13. {
  14.     Encapsulator e = f(7);
  15.     // forbidden: std::cout << e.i << std::endl;
  16.     struct Gimme : Encapsulator { static int read(Encapsulator& o) { return o.i; } };
  17.     std::cout << Gimme::read(e) << std::endl;
  18. }
  19.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cpp: In static member function ‘static int main()::Gimme::read(Encapsulator&)’:
prog.cpp:4:9: error: ‘int Encapsulator::i’ is protected
prog.cpp:16:79: error: within this context
stdout 
Standard output is empty
https://ideone.com/kKlTvD
language:
C++14 (gcc 8.3)
created:
12 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!