в 15:31, 26 мая 2010

2010-05-26T15:31:02Z

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2010-05-26T12:04:47Z

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==Convert Between Class Pointers==

<source lang="csharp">
#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;
}

</source>

==Convert Between Class References with dynamic_cast==

<source lang="csharp">
#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;
}

</source>

==Convert Between Pointers and Numbers with reinterpret_cast==

<source lang="csharp">
#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;
}

</source>

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Visual C++ .NET/Development/Pointer - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия