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From: Per Sandberg <per.sandberg@bredband.net>
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Newsgroups: comp.lang.ada
Subject: Re: Cross-platform issues
References: <hfeive$315$1@news.albasani.net>
 <nospam-269FFA.12135306122009@news.aioe.org> <hfhf9l$2gh$1@news.albasani.net>
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Date: Mon, 07 Dec 2009 07:03:38 +0100
Xref: g2news1.google.com comp.lang.ada:8329
Date: 2009-12-07T07:03:38+01:00
List-Id: <comp.lang.ada>

Two good titles
John Barnes: Programming in Ada 2005
Alan Burns & Andy Wellings: Concurrent and Real-Time Programming in Ada
/Per


2009-12-07 00:39, Leslie skrev:
> John B. Matthews wrote:
>
>> In article<hfeive$315$1@news.albasani.net>,
>>   Leslie<jlturriff@centurytel.net>  wrote:
>>
>>> I'm working on an application that I would like to be capable
>>> of communicating between hosts, and I wonder how the issue of
>>> 32-bit vs. 64-bit, and perhaps endianness should best be
>>> handled?
>>
>> I'm guessing that would depend on how much and what kind of
>> data, as well as a given compiler's support for representation.
>> Here's an example of one vendor's documentation of this:
>>
>>
> <http://gcc.gnu.org/onlinedocs/gcc-4.3.4/gnat_rm/Representation-Clauses-a
>> nd-Pragmas.html#Representation-Clauses-and-Pragmas>
>>
>> Another approach is to avoid such problems altogether by using
>> Ada Web Server (AWS) and defining all communication atop HTTP:
>>
>> <http://libre.adacore.com/libre/tools/aws/>
>>
>          What I'm working on is a product that I want to conform as
> closely as possible to the one that inspired it.  The original
> emits trace data with things like field length info in 4-byte
> integers, for example. I suppose that using a derived type to
> ensure that in my implementation those fields conform with the
> original is one way to do it, but is that accepted practice, or
> is there a more usual one?
>
>          BTW, I'm just getting into Ada, and the only books I have for
> reference were from the early 90s, so at this point my ideas on
> how to proceed are a bit vague. :-)
>
> Leslie