class A <div>{</div> <div>}</div> <div><br></div> <div>class B : public A</div> <div>{</div> <div><span class="Apple-tab-span" style="white-space:pre;"> </span>//blah~ blah~</div> <div>public:</div> <div>friend ostream& operator<<(ostream &out, B)</div> <div>{</div> <div><span class="Apple-tab-span" style="white-space:pre;"> </span>out << "B내용 출력" << endl;</div> <div><span class="Apple-tab-span" style="white-space:pre;"> </span>return out;</div> <div>} //비슷한 내용을 가진, A의 자식클래스 B', B'' 존재</div> <div><br></div> <div>class C</div> <div>{</div> <div><span class="Apple-tab-span" style="white-space:pre;"> </span>list<A*> AList;</div> <div>}</div> <div><br></div> <div>이렇게 선언돼 있고</div> <div>main함수에서</div> <div>B, B', B''가 선언되어</div> <div>C.AList.push_back()으로 리스트화 시켰는데</div> <div><br></div> <div>첫번째 목록을 출력하고 싶어서</div> <div>cout<< C.front()</div> <div>이렇게 하니까</div> <div><br></div> <div>A를 매개로 한 연산자 오버로딩이 없다고</div> <div>안시켜줘요</div> <div>ㅠㅠ</div> <div><br></div> <div>근데 ostream은 가상화도 안되는거같아요</div> <div>ㅠㅠㅠㅠㅠ</div> <div><br></div> <div>어떻게 해야 하나요 ㅠㅠ</div>
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