error: undefined reference to 'vtable for
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A.h:
class ProcessCB
{public:
virtual ~ProcessCB(){};
virtual void onCallback(int result) = 0;
};
B.h:
class DefogDH: public ProcessCB {
public:
virtual void onCallback(int result);
};
B.cpp:
DefogDH* mDefogDH;
mDefogDH = new DefogDH();
编译报错:
error: undefined reference to 'vtable for
解决方法:
添加:
void PrivateDefog::DefogDH::onCallback(int result){}
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