myvtm/spbase/test/testInherits.cpp

#include "stdafx.h"

#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <windows.h>

struct IEntityFunction
{
	virtual ~IEntityFunction()
	{
		printf("%s\n", __FUNCTION__);
	}
	virtual void f() = 0;
};

struct IEntityFunctionPrivilege
{
	virtual ~IEntityFunctionPrivilege()
	{
		printf("%s\n", __FUNCTION__);
	}
	virtual void g() = 0;
};

struct SpEntity : public IEntityFunction
{
	virtual ~SpEntity() 
	{
		printf("%s\n", __FUNCTION__);
	}
	virtual void f()
	{
		printf("%s\n", __FUNCTION__);
	}
};

struct SpEntityPrivilege : public IEntityFunctionPrivilege, public SpEntity
{
	virtual ~SpEntityPrivilege() 
	{
		printf("%s\n", __FUNCTION__);
	}
	virtual void g()
	{
		printf("%s\n", __FUNCTION__);
	}
};


void test(IEntityFunction* pEntityFunction)
{
	pEntityFunction->f();
	IEntityFunctionPrivilege *pEntityFunctionPrivilege = dynamic_cast<IEntityFunctionPrivilege*>(pEntityFunction);
	if (pEntityFunctionPrivilege) 
		pEntityFunctionPrivilege->g();
}

int _tmain(int argc, _TCHAR* argv[])
{
	printf("\n SpEntityPrivilege:\n");

	IEntityFunction *pEntityFunction = new SpEntityPrivilege();

	test(pEntityFunction);
	
	delete pEntityFunction;

	printf("\n SpEntity:\n");

	pEntityFunction = new SpEntity();
	test(pEntityFunction);
	delete pEntityFunction;

	getchar();

	return 0;
}