Question

two clients communicate to each other on top of a message layer

in the message body, I need include a field pointing to any data type

From client A, I send the field as a shared_ptr<TYPEA> to the message layer.
I define this field as a shared_ptr<void> in the message layer.
But how can I convert this field back to shared_ptr<TYPEA> in client B?

Or should I define shared_ptr<void> in message layer as something else?

Thanks

Answer 1

If you’re using boost::shared_ptr then you can use the various XXX_ptr_cast<>() functions (static_ptr_cast, dynamic_ptr_cast…).

If you’re using the MSVC 2010 version I haven’t been able to find an implementation of these functions. They may not be part of the standard.