#include <iostream> #include <cstring> #include <vector> #include <list> #include <string> #include <array> using namespace std; class B { public: B(void) { cout << "B\t"; } ~B(void) { cout << "~B\t"; } }; struct C { C(void) { cout << "C\t"; } ~C(void) { cout << "~C\t"; } }; struct D : B { D(){ cout << "D\t"; } ~D(){ cout << "~D\t"; } private: C c; }; int main() { D d; return 0; }