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#include <iostream> using std::cout; using std::endl; class A { public: A(){} ~A(){ cout << "A::~A()" << endl; } void show() { cout << "A is alive!" << endl; } }; class B { public: B(A* pA){m_pA = pA;} ~B(){ if(m_pA) { delete m_pA; } } A* m_pA; }; void main() { A a; a.show(); B* pB = new B(&a); delete pB; a.show(); }
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