Re: Interest in updated, standalone iterator_facade library?

From: Zach Laine (whatwasthataddress_at_[hidden])
Date: 2019-08-11 16:00:53

On Sun, Aug 11, 2019 at 10:52 AM Peter Dimov via Boost <
boost_at_[hidden]> wrote:

> Zach Laine wrote:
> > On Sun, Aug 11, 2019 at 5:43 AM Peter Dimov via Boost
> > <boost_at_[hidden]> wrote:
> >
> > > Zach Laine wrote:
> > >
> > > > https://tzlaine.github.io/iterator_facade
> > >
> > > `reference` being `char const` in the introductory example doesn't
> feel
> > > correct. `char const` can't be returned from a function (such as
> > > `operator*`), top-level qualifiers aren't meaningful for `char`.
> >
> > It is correct, as of C++20.  Proxy iterators are first-class citizens,
> as
> > of the ranges concepts work.  I used that reference type on purpose, and
> I
> > refer to that later in the docs.  Also, this is copy-paste from
> Boost.Text
> > (proposed), which uses that exact iterator with a "char const" reference
> > type.
>
> Thanks. You should however be aware that both gcc and clang warn on
> functions returning `const char` with -Wextra. :-)
>

Huh.  Good to know.  I guess I should change it to char then.

Zach