Re: [boost] difference_type size()?

Subject: Re: [boost] difference_type size()?
From: Jeffrey Lee Hellrung, Jr. (jeffrey.hellrung_at_[hidden])
Date: 2011-10-19 16:24:35

On Wed, Oct 19, 2011 at 12:38 PM, <andrey.semashev_at_[hidden]> wrote:

> On Wednesday, October 19, 2011 12:27:31 Jeffrey Lee Hellrung, Jr. wrote:
>
[...]

> > > I think the following would do:
> > >  typedef typename make_unsigned< difference_type >::type size_type;
> >
> > I was under the impression that most of the traits in Boost.TypeTraits of
> > this nature are only defined for builtin types.
>
> See one of my previous replies, difference type should be a signed integer
> type.
>

Ah, indeed.  Then I agree make_unsigned would be a legitimate solution.

- Jeff