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  1. #include <iostream>
  2. #include <memory>
  3.  
  4. class Test {
  5. public:
  6.     Test(){}
  7.     Test(int n) : num(n) {}
  8.     int num;
  9. };
  10.  
  11. template<typename T>
  12. class Object {
  13. public:
  14.     Object(const T& v) : value(std::make_shared(v)) {}
  15.     Object(std::unique_ptr<T>&& v) : value(std::move(v)) {}
  16.  
  17.     T* operator->() { return value.get(); }
  18. private:
  19.     std::shared_ptr<T> value;
  20. };
  21.  
  22. int main(int argc, char *argv[]) {
  23.  
  24.  
  25.     Object<Test> object = std::make_unique<Test>();
  26.     object->num = 67;
  27.     std::cout << object->num << std::endl;
  28.  
  29.     {
  30.         Object<Test> ot = object;
  31.         ot->num = 34;
  32.     }
  33.     std::cout << object->num << std::endl;
  34. }
  35.  
Success #stdin #stdout 0s 4272KB
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stdin
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Standard input is empty
stdout
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67
34
https://ideone.com/d7W8fh
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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