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  1. class A {
  2. public:
  3.     A(int i) : x(i) { }
  4.     A() : x(1) {}
  5.     int x;
  6. };
  7.  
  8. class B : private virtual A {
  9. protected:
  10.     B(int i) : A(i) { } };
  11.  
  12. class C : public B, private virtual A {
  13. protected:
  14.     C(int i) : A(i), B(i) { }
  15. };
  16.  
  17. class D : public C {
  18. public:
  19.     D() : A(1), C(3) { }
  20. };
  21.  
  22. int main() {
  23.     D d;
  24. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In constructor 'D::D()':
prog.cpp:1:9: error: 'class A A::A' is inaccessible
 class A {
         ^
prog.cpp:19:11: error: within this context
     D() : A(1), C(3) { }
           ^
stdout
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Standard output is empty
https://ideone.com/n9ywWo
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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