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From: Jody Hagins (jody-boost-011304_at_[hidden])
Date: 2005-06-14 15:42:01


On Tue, 14 Jun 2005 15:18:57 -0400
Caleb Epstein <caleb.epstein_at_[hidden]> wrote:

> On 6/9/05, Caleb Epstein <caleb.epstein_at_[hidden]> wrote:
> > On 6/8/05, Caleb Epstein <caleb.epstein_at_[hidden]> wrote:
> > > On 6/8/05, Caleb Epstein <caleb.epstein_at_[hidden]> wrote:
> > >
> > > > I've commited fixes for these to CVS just now, but I'm *not*
> > > > sure how to best address the BOOST_BIG_ENDIAN issue. Any
> > > > suggestions there?
> > >
> > > I think perhaps a new header file, <boost/endian.hpp> makes the
> > > most sense here.
> > >
> > > I don't think the definition of BOOST_BIG_ENDIAN /
> > > BOOST_LITTLE_ENDIAN belong in <boost/detail/limits.hpp> This
> > > header is not included unless BOOST_NO_LIMITS is defined, which I
> > > assume is only for non-standards-conforming implementations.
> >
> > Does anyone have an opinion on this? Should there be a
> > <boost/endian.hpp> that defines e.g. BOOST_{BIG,LITTLE,PDP?}_ENDIAN?
> > There are two failing tests in Boost.Serialization that need to know
> > if we are on a BOOST_BIG_ENDIAN platform.
>
> Lets try this one more time, but I'll rephrase my question.
>
> Does anyone object to me adding a new header <boost/endian.hpp> for
> this purpose? Or perhaps <boost/detail/endian.hpp> as it would be
> undocumented. This is all that is required to make the
> gcc-3_4_3-sunos target 100% pass on all tests. It will also fix any
> other big-endian platform where the Boost.Serialization
> test_demo_portable_archive{,_dll} is failing (Darwin I think).
>
> I don't know if this qualifies as a "new feature" or not, but I think
> it would be nice to have, particularly if any networking code gets
> introduced any time soon.

I actually brought this subject up a while ago (see
http://lists.boost.org/MailArchives/boost/msg68195.php). The thing that
really did me in for a compile time check is the new architectures that
allow you to change endian-ess on the fly at runtime
(http://lists.boost.org/MailArchives/boost/msg09120.php). Thus, I fell
back to runtime detection in the stuff I was doing.


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