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  1. #include <iostream>
  2. #include <string>
  3. #include <functional>
  4. #include <vector>
  5.  
  6.  
  7. class Test{
  8.  
  9. public:
  10.  
  11.     Test() = default;
  12.     Test(const Test& other) = delete;
  13.     Test& operator=(const Test& other) = delete;
  14.     Test(Test&& other) = default;
  15.     Test& operator=(Test&& other) = default;
  16.  
  17.  
  18.  
  19.     void setFunction(){
  20.         auto a = &Test::a;
  21.         lambda = [=](Test *t){
  22.             (t->*a) = 2;
  23.         };
  24.     }  
  25.  
  26.     int callAndReturn(){
  27.        lambda(this);
  28.        return a;
  29.     }
  30.  
  31. private:
  32.     std::function<void(Test*)> lambda; 
  33.     int a = 50;
  34. };
  35.  
  36.  
  37. int main()
  38. {
  39.   Test t;
  40.   t.setFunction();
  41.   std::vector<Test> elements;
  42.   elements.push_back(std::move(t));
  43.   std::cout << elements[0].callAndReturn() << std::endl;
  44. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/DzXMQy
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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