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From: Brian McNamara (lorgon_at_[hidden])
Date: 2003-10-23 19:55:43

I see now where I misunderstood.

On Fri, Oct 24, 2003 at 07:32:51AM +0800, Joel de Guzman wrote:
> I posed 2 solutions:
> 1) Have all iterators inherit from a base:
> (using CRTP: curriously recurring...)
> template <class I>
> inline typename mpl::deref<I>::type
> operator*(iterator_base<I> const&);

Somehow I missed that this (using the base class as a way to narrow the
overload set) was one of the alternatives you were proposing...

> 2) Have an is_tuple_iterator<I> meta-function
> template <class I>
> inline typename lazy_enable_if<
> is_iterator<T>
> , mpl::deref<I>
> >::type
> operator*(I);

... and I thought both of your proposed solutions were a variation of
this (using some version of enable_if). Now that I've gone back and
re-read the whole thread again, I see what you were/are saying.

I definitely think #2 is the right way to go.

Thanks for clarifying!

-Brian McNamara (lorgon_at_[hidden])

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