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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Base
  5. {
  6.     void foo() const {
  7.         cout << "Base::foo()\n";
  8.     }
  9.  
  10.     virtual void virt() const {
  11.         cout << "Base::virt() called\n";
  12.     }
  13. };
  14.  
  15. struct Derived : private Base
  16. {
  17.     const Base* get() const {
  18.         return this;
  19.     }
  20.  
  21. private:
  22.     virtual void virt() const override {
  23.         cout << "Derived::virt() called\n";
  24.     }
  25. };
  26.  
  27. int main()
  28. {
  29.     Derived d;
  30.     //const Base *b = &d; //uncomment to get error
  31.     const Base *b = d.get();
  32.     b->foo();
  33.     b->virt();
  34. }
Success #stdin #stdout 0s 2852KB
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stdin
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Standard input is empty
stdout
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Base::foo()
Derived::virt() called
https://ideone.com/rPPmkJ
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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