Visual C++ .NET/Development/Pointer

Convert Between Class Pointers

 
#include "stdafx.h"
#using <mscorlib.dll>
using namespace System;
class BaseClass { virtual void F(){} };
class DerivedClass : public BaseClass {};
int main(void)
{
    DerivedClass* a = new DerivedClass;
    BaseClass* b = dynamic_cast<BaseClass*>(a);
    if (b != 0)
        Console::WriteLine("Conversion to base class successful.");
    else
        Console::WriteLine("Conversion to base class unsuccessful.");
    delete a;
   return 0;
}

Convert Between Class References with dynamic_cast

 
#include "stdafx.h"
#include <typeinfo.h>
#using <mscorlib.dll>
using namespace System;
class BaseClass { virtual void F(){} };
class DerivedClass : public BaseClass {};
int main(void)
{
    DerivedClass a;
    DerivedClass& aa = a;
        BaseClass& b = dynamic_cast<BaseClass&>(aa);
        Console::WriteLine("Conversion to base class successful.");
    return 0;
}

Convert Between Pointers and Numbers with reinterpret_cast

 
#include "stdafx.h"
#using <mscorlib.dll>
using namespace System;
int main(void)
{
   char* pStr = "A";
   int* pInt = reinterpret_cast<int*>(pStr);
   Console::WriteLine("As string: ");
   Console::WriteLine(pStr);
   Console::WriteLine("As integer: ");
   Console::WriteLine(*pInt);
   return 0;
}