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  1. #include <iostream>
  2.  
  3. class A {
  4. public:
  5. 	int a;
  6. 	A(int a) : a(a) {}
  7. };
  8.  
  9.  
  10. class B {
  11. public:
  12. 	B(A *a) : a(*a) {}
  13. 	int getA() {return a.a;}
  14. private:
  15. 	A &a;
  16. };
  17.  
  18. int main() {
  19. 	// your code goes here
  20. 	A *a = new A{666};
  21.  
  22. 	B b{a};
  23.  
  24. 	a->a = 777;
  25.  
  26. 	std::cout << b.getA();
  27.  
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 3412KB
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stdin
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Standard input is empty
stdout
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777
https://ideone.com/dDw6wG
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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