replacing new and delete in MFC application

Hi,

I am trying to replace the new and delete functions in my MFC derived C++
application - the reason is to find memory leaks - but I keep getting a
linker error saying that 'new' is already declared in mfc80.dll.

I obviously have to link with mfc80.dll, but how do I replace the new
function?!?

I'm using MS Visual Studio Team Edition 2005. And it's a MFC C++ application.

Thanks in advance. !!!

I'm placing the following code in the stdafx.h file:

#ifdef _DEBUG
    inline void * __cdecl operator new(unsigned int size, const char *file,
int line)
    {
        void *result = (void *)malloc(size);
        if( !result )
        {
            throw_bad_alloc();
        }

        AddTrack((DWORD)result, size, file, line); // my memory trace
function

        return( result );

    };

    //
    // commented out for now !!
    //
    //inline void __cdecl operator delete(void *p)
    //{
    // RemoveTrack((DWORD)p);
    // free(p);
    //};

#endif // _DEBUG

#ifdef _DEBUG
    #define DEBUG_NEW new(__FILE__, __LINE__)
#else
    #define DEBUG_NEW new
#endif

#define new DEBUG_NEW