Re: [boost] AlRangeExandrescu?

Subject: Re: [boost] AlRangeExandrescu?
From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2009-07-23 10:24:47

David Abrahams skrev:
> Hi Neil,
> 
> I'm sure someone already spoke to you about this, but just in case: 
> Andrei Alexandrescu gave a very interesting presentation at BoostCon 
> that was based on a "ranges only" approach that should eliminate issues 
> like this one:

Of the issues that it does seem to solve are the following:

- begin and end iterator does not need to be the same (because there is 
not two iterators)
- simpler specification, better error messages (iterators are somewhat 
painfull)

This has a some irritating implications, like forcing us to store two 
predicates etc. I haven't done any benchmarking to see how much this is
actually a problem.

However, I donøt think RangeEx should try to do this design. That's a 
job for Boost.RangeExEx, or some GSOC project.

Also note that with the new C++0x features, we should be able to
handle that the begin and end iterator are different types.

-Thorsten