CxHandle.cpp

/**
 * \file  CxHandle.cpp
 * \brief Defines the entry point for the console application
 */


//-------------------------------------------------------------------------------------------------
#include "stdafx.h"
#include <iostream>
#include <windows.h>
//-------------------------------------------------------------------------------------------------
enum class EHandleValue
{
    hvNull,
    hvInvalid
};
//-------------------------------------------------------------------------------------------------
template<EHandleValue hvTag>
HANDLE CxHandleFailValueGet();
//-------------------------------------------------------------------------------------------------
template<>
HANDLE
CxHandleFailValueGet<hvNull>()
{
    return NULL;
}
//-------------------------------------------------------------------------------------------------
template<>
HANDLE
CxHandleFailValueGet<hvInvalid>()
{
    return INVALID_HANDLE_VALUE;
}
//-------------------------------------------------------------------------------------------------
template<EHandleValue hvTag>
class CxHandleT
{
public:
    HANDLE m_hHandle {};

    CxHandleT()
        : m_hHandle{ CxHandleFailValueGet<hvTag>() }
    {
        std::cout << __FUNCTION__ << std::endl;
    }

    ~CxHandleT()
    {
        std::cout << __FUNCTION__ << std::endl;
    }
};
//-------------------------------------------------------------------------------------------------
int main(int argc, _TCHAR* argv[])
{
    CxHandleT<hvNull>    hHandle1;
    CxHandleT<hvInvalid> hHandle2;

	return 0;
}
//-------------------------------------------------------------------------------------------------