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  1. namespace MyNamespace
  2. {
  3.     template <typename Type>
  4.     class Container;
  5.  
  6.     namespace AccessPrivateImplementation
  7.     {
  8.         template <typename Type>
  9.         Type getValue(Container<Type>* container);
  10.     }
  11.  
  12.     template <typename Type>
  13.     class Container
  14.     {
  15.         friend Type AccessPrivateImplementation::getValue<>(Container<Type>* volume);
  16.     private:
  17.         Type value;
  18.     };
  19.  
  20.     namespace AccessPrivateImplementation
  21.     {
  22.         template <typename Type>
  23.         Type getValue(Container<Type>* container)
  24.         {
  25.             return container->value;
  26.         }
  27.     }
  28. }
  29.  
  30. int main(int argc, char* argv[])
  31. {
  32.     MyNamespace::Container<int> cont;
  33.     MyNamespace::AccessPrivateImplementation::getValue(&cont);
  34.     return 0;
  35. }
  36.  
Success #stdin #stdout 0s 2848KB
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https://ideone.com/rIO9df
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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