Re: [boost] [range] fat iterators?

Subject: Re: [boost] [range] fat iterators?
From: Thorsten Ottosen (thorsten.ottosen_at_[hidden])
Date: 2013-11-13 04:31:22

On 12-11-2013 18:19, Eric Niebler wrote:
> On 11/12/2013 8:38 AM, Thorsten Ottosen wrote:
>> On 12-11-2013 16:41, Eric Niebler wrote:

> I should use EBO, but that's not the right place for it. It adds a bunch
> of associated namespaces to the filter_range type. Rather, the predicate
> and the adapted range should be in a compressed pair. I have this
> working locally already. The space savings are worth it: a filtered,
> filtered, transformed range goes from 24 bytes to 16.

Nice.

> So yes, it needs to store the pred. One of my breaking changes is to
> allow the "filter" name to be reused such that these two are equivalent:
>
>      vec | filter(pred)
>      filter(vec, pred)
>
> I want this. I never liked "filtered" or the adaptors namespace.

Sounds reasonable. Your implementation looks good.

regards

-Thoorsten