Re: [boost] Re: MPL containers and algorithms

From: David Abrahams (dave_at_[hidden])
Date: 2002-08-12 01:06:29

From: "Paul Mensonides" <pmenso57_at_[hidden]>

> ----- Original Message -----
> From: "David Abrahams" <dave_at_[hidden]>
>
> > > In order to work with different type sequences from other places,
those
> > type
> > > sequences will still need to be modified.
> >
> > That's not my understanding at all. AFAIK, you can just specialize the
> > begin<> and end<> metafunctions to produce iterators. Care to explain
what
> > you mean?
>
> That is what I mean.  You have to provide the iterators, and that is
intrusive.

In what sense is that intrusive?

Would you say that supplying a specialization of std::swap<> for my
container type is intrusive on my container?

> Nevertheless, that isn't really a big deal.  I don't think that this is
> necessarily a worthwhile goal on philosophical grounds.  Template
> metaprogramming is still in its infancy.  As of right now, we still have
a
> reasonably chance at uniformity.  Specifically designing the library to
be
> easily adaptable to alternate implementations of the same thing certainly
> doesn't encourage uniformity.

I guess I just don't find uniformity to be a very compelling goal.

-Dave

-----------------------------------------------------------
           David Abrahams * Boost Consulting
dave_at_[hidden] * http://www.boost-consulting.com