[boost] [interfaces] would the following work?

From: Joaquín Mª López Muñoz (joaquin_at_[hidden])
Date: 2005-05-11 08:17:29

Is (the proposed) Boost.Interfaces lib able to handle the following
scenario?

template<typename T>
interface IIterator
{
  T& operator*()const;
  ...
};

template<typename T>
interface IContainer
{
  IIterator<T> begin();
  IIterator<T> end();
  ...
};

It is not the issue of specifying an operator as part of the interface
IIterator (this'll be taken care of in the future according to the
docs), but the
fact that IContainer::begin is required to return an object implicitly
convertible
to IIterator<T>. Can Boost.Interfaces do that?

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

PS: Just for motivation, I' thinkthi s idiom could be taken advantage of

in a possible implementation of a dynamic multi-index container.