Tempate conversion method

[Vladox]

I'm trying to write an operator method that will convert from the class member's type (which is templated itself) to another type. I've got my simplified class and the method declared and defined as follows:

template <typename A> class Classname
 {
 A *ptr;
 public:
 template <typename B> operator B* ();
 };

template <typename A, typename B> Classname<A>::operator B* ()
  { return (*B)ptr; }

What's wrong with this code? Do I need to use a different cast operator?

[Disch]

What is im1T?

[Vladox]

Sorry, that's supposed to be ptr.

[Disch]

Well this is the only syntax error I see:

{ return (*B)ptr; }  // wrong
{ return (B*)ptr; }  // you probably wanted this 

But really, I have to question the overall wisdom of this. You can't just cast any type to any other type. Doing this is very dangerous. You're basically side-stepping the entire type safety system in the language.