void pointer to type

[voidspace]

I want to be able to use a a function like

WriteLogType("Double Type", 10.4563);
WriteLogType("Integer Type", 10);
WriteLogType("String", "Hello"); 

etc


I was trying to determine the type like below but it was always satisfying Integer condition. How to resolve this?

void CMyApp::WriteLogType(CString strMessage, void *pVoidType)
{
    // then it is an integer
    if(sizeof(&pVoidType) == sizeof(int))
    {
        TRACE("Integer");
    }
    else if(sizeof(&pVoidType) == sizeof(float))
    {
        TRACE("Float");
    }
    else if((sizeof(&pVoidType) == sizeof(double)))
    {
        TRACE("Double");
    }
    else if((sizeof(&pVoidType) == sizeof(char)))
    {
        TRACE("Char");
    }
    else
    {
        TRACE("Unknown");
    }
}