[Dev-C++] Why doesn't this compile?

[Andrew V. <av...@in...>]

And more importantly, how can I make it compile?!



#define MY_TYPE IDirect3DBaseTexture8

class CBase
{
	public:
		CBase() {}
		virtual ~CBase() {}

		virtual operator MY_TYPE * () = 0;
};

class CDerived : public CBase
{
	public:
		CDerived() {}
		~CDerived() {}

		operator MY_TYPE * () { return NULL; }
};

void	test()
{
	CBase	*c = new CDerived();
	MY_TYPE *f = c;
}




The #define is there purely so I could see if the code compiled with
different types - it doesn't.

TIA,

Andrew Vidler.