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  1. #include <iostream>
  2.  
  3. template <typename T>
  4. class A
  5. {
  6. public:
  7.     template <typename S>
  8.     struct node
  9.     {
  10.         S value;
  11.         struct node* right;
  12.         struct node* left;
  13.  
  14.         node() : value(42), right(), left() {}
  15.     };
  16.  
  17.     node<T>* foo();
  18. };
  19.  
  20. template <typename T>
  21. typename A<T>::template node<T>* A<T>::foo()
  22. {
  23.     node<T>* temp = new node<T>;
  24.     return temp;
  25. }
  26.  
  27. int main()
  28. {
  29.     A<int> obj;
  30.     typename A<int>::template node<int>* p = obj.foo();
  31.     std::cout << p->value << std::endl;
  32.     delete p;
  33.     return 0;
  34. }
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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42
https://ideone.com/5ybwqN
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
secret

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