gistfile1.cpp

class BaseClassA {
public:
	BaseClassA();
	virtual int readBuf(const char*); // same too!.
	virtual ~BaseClassA();
};

class SplitBaseA : public BaseClassA{
public :
	virtual int splitBaseAReadBuff(const char* value ) = 0;
	SplitBaseA();
	virtual ~SplitBaseA();
private :
	int readBuf(const char* value){
		return splitBaseAReadBuff(value);
	}
};


class BaseClassB {
public:
	BaseClassB();
	virtual int readBuf(const char*); // same too!.
	virtual ~BaseClassB();
};


class SplitBaseB : public BaseClassB{
public :
	virtual int splitBaseBReadBuff(const char* value) = 0;
	SplitBaseB();
	virtual ~SplitBaseB();
private :
	int readBuf(const char* value){
		return splitBaseBReadBuff(value);
	}
};

int main(){
        DerivedClass d;
	BaseClassA* pbA = &d;
	BaseClassB* pbB = &d;
	pbA->readBuf("test");
	pbB->readBuf("testB");
	std::cout<<"END TEST"<<std::endl;
}