fork download
copy 
  1. #include <iostream>
  2.  
  3. struct A {
  4.  void bar();
  5. private:
  6.  struct B {
  7.  	int i = 42;
  8.  };
  9. };
  10.  
  11. /* compile error 
  12. void foo(const A::B& value) {
  13. 	std::cout << value.i;
  14. }
  15. */
  16.  
  17. /** everything is ok */
  18. template<typename T>
  19. void foo(const T& value) {
  20. 	std::cout << value.i;
  21. }
  22.  
  23.  
  24. void A::bar() {
  25. 	A::B b; 
  26. 	foo(b);
  27. }
  28.  
  29.  
  30. int main() {
  31. 	A a;
  32. 	a.bar();
  33. 	return 0;
  34. }
Success #stdin #stdout 0s 4816KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
42
https://ideone.com/2V11CF
language:
C++14 (gcc 8.3)
created:
5 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!