C / C++ / MFC

using namespace std;
class Foo; // forward declaration

void func()
{
  auto_ptr<Foo> pf (new Foo());	
  cout << "I am here. " << endl;
  return;
}
int main()
{
  func();	
  return 0;
}
// full declaration of class Foo
class Foo 
{
 public:
	Foo();
	~Foo();
};

Foo::Foo()
{}

Foo::~Foo()
{}

alphaxz wrote:

I use the class in a global function
then i deifne the global function as export function

Mark Salsbery
Microsoft MVP - Visual C++

// MyClass.h

#if defined(BUILDING_MY_DLL)
  #define MY_DLL_IMP_EXP __declspec(dllexport)
#else
  #define MY_DLL_IMP_EXP __declspec(dllimport)
#endif

class MyClass
{
public:
	MY_DLL_IMP_EXP int SomeFunc();
};

#include "MyClass.h"

int MyClass::SomeFunc()
{
	return 12;
}

#include "MyClass.h"

MyClass mc;
int ret = mc.SomeFunc();

Mark Salsbery
Microsoft MVP - Visual C++

Member 2021022 wrote:

I wasn't aware that there were new extensions syntax

typedef array<float> floatArray;
...
// create a floatArray with 10 elements
floatArray ^farray = gcnew floatArray(10);

Member 2021022 wrote:

I thought I had published it to the C++ board

Mark Salsbery
Microsoft MVP - Visual C++