dynamic_cast and references

[Dan Noland]

- Hello All -

I believe that I have a firm understading of dynamic_cast and its
proper usage, however g++-2.95.4 is telling me that something I believe to
be possible is not possible.

I have:

class ObjectRefList: /*extends*/ public Object {
/* ObjectRefList Stuff Lives Here */
public:
class ObjectRefListIt erator: /*extends*/ public Object {
ObjectRefListIt erator& operator++();
bool operator==(Obje ctRefList& aOp) const;
bool operator!=(Obje ctRefList& aOp) const;
Object& getCurrent() const;
}
}

Each of my Interfaces has an ObjectRefList called mListeners. So I tried
something like:

bool FooInterface::o nClick()
{
ObjectRefList:: ObjectRefListIt erator i = mListeners.begi n();
for(;i != mListeners.end( ); i++)
{
dynamic_cast<Fo oInterface&>(i. getCurrent()).o nClick();
}
}

However g++ tells me:

FooInterface.cp p:41: cannot dynamic_cast
`+i.ZObjectRefL ist::ZObjectRef ListIterator::g etCurrent()' (of type `class
Object &') to type `class FooInterface &'

I was under the impression that dynamic_cast
(1) worked on references and
(2) allowed downcasts (when appropriate)

Please disabuse me of these notions if either of them are untrue.
Otherwise is this just a g++ issue or am I doing something retarded?

YT,
Dan Noland
Purdue RCS Programmer/Analyst