Re: [Boost-users] [serialisation]Portable Binary Archives

From: Robert Ramey (ramey_at_[hidden])
Date: 2007-07-25 13:14:47

I am hopeful that progress will soon be made on this area.

This would accomplish:

a) fixing noted bugs in the portable binary archive and making
it pass the serialization torture tests that the other archives
are subjected to.

b) subjecting it (along with other archives) to profiling at least
with gcc compilers.

I wasn't planning on addressing floating point.  If someone wants
to do this I would certainly be happy to lend my constructive
criticism to the effort.  The main issues are:

a) portable subset of NaN's etc.  It seems to me this is ready to
that this code has been done by John Rade? so that's would seem
ok.

b) portable encoding of floating point - a very attractive proposal
was submitted some time ago (with code !!!) by Ralf W Grosse-Kunstleve
search the mailing list for this.

So feel free to get busy.

Robert Ramey

Pfligersdorffer, Christian wrote:
> So, is there anything going on in this cause? I really need floating
> point types so I'd love to see some progress in that. I am also
> willing to do some coding if need be.
>
> Regards,
>
>
>  "Scott McMurray" <me22.ca+boost_at_[hidden]> wrote:
>> FWIW, I'm currently using binary files for some work because the text
>> is huge and slow.
>>
>> ... down to 1.2 GiB instead of the 2.1 GiB for text ... It also makes
>> my load time drop from a few minutes to a few seconds
>
> This has been my (somewhat limited application domain) experience, as
> well. Almost all of the distributed systems I've worked on that used
> binary message data passing did so for both processing speed and
> compactness of the data.
> Most of the system architects understood the "brittleness"
> and drawbacks of the design (specially when floating point values were
> needed), but were willing to make the tradeoff.
>
> I'd love to be able to remove at least some of the code design and
> portability drawbacks for applications needing to pass (or read /
> write) binary data.
>
> Cliff
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