Managed and Unmanaged Compilation

[romcab]

Hi guys,
I created a simple program which combines a managed and unmanaged c++ syntax. I have encountered a problem in compiling this program. The compiler told me to add /clr:oldSyntax but when I added it, the compiler cannot interpret the managed syntax. Hope you can help me.

#include "stdafx.h"

using namespace System;

__nogc class Container
{
int m_value;

public:
Container() : m_value(0) {}
void setValue(int* a_value) { m_value = *a_value; }
const int& getValue() { return m_value; }

};

int main(array<System::String ^> ^args)
{
Console::WriteLine(L"Hello World");
return 0;
}

[Banfa]

I created a simple program which combines a managed and unmanaged c++ syntax. I have encountered a problem in compiling this program. The compiler told me to add /clr:oldSyntax but when I added it, the compiler cannot interpret the managed syntax.

Hi, I suspect the compiler was guess at your mistake and got it wrong (no surprise there), /clr:oldSyntax is only for use with legacy projects built with Managed C++ syntax before the newer C++/CLR syntax came in.

I suggest your remove /clr:oldSyntax compile and post the errors you get from that compilation.

[romcab]

Hi, I suspect the compiler was guess at your mistake and got it wrong (no surprise there), /clr:oldSyntax is only for use with legacy projects built with Managed C++ syntax before the newer C++/CLR syntax came in.

I suggest your remove /clr:oldSyntax compile and post the errors you get from that compilation.

Hi,

Thanks. I post here my solution. Kindly comment if this correct.

// Managed.cpp : main project file.

#include "stdafx.h"

using namespace System;


class MyBase
{
private:
int m_value;

public:
MyBase() : m_value(0) { Console::WriteLine(L"MyBase constructed is called"); }
void setValue(int a_value) { m_value = a_value; }
const int getValue() { return m_value; }

};


public ref class MyClass
{
public:
MyBase *mb;

public:
MyClass()
{
this->mb = new MyBase();
Console::WriteLine(L"MyClass constructed is called");
}
};

int main(array<System::String ^> ^args)
{
MyClass ^my = gcnew MyClass();
my->mb->setValue(5);
Console::WriteLine(my->mb->getValue());
Console::ReadLine();
return 0;
}