From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED.jFK6OqqKW5bkmQ4H/i1UAQ.user.gioia.aioe.org!not-for-mail
From: "Luke A. Guest" <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: How can I get this data into the .data section of the binary?
Date: Tue, 16 Jun 2020 15:42:08 +0100
Organization: Aioe.org NNTP Server
Message-ID: <rcalpb$67r$2@gioia.aioe.org>
References: <rcaajp$g3k$1@gioia.aioe.org> <hks2d9Fsa5jU1@mid.individual.net>
 <rcakns$1phu$1@gioia.aioe.org>
NNTP-Posting-Host: jFK6OqqKW5bkmQ4H/i1UAQ.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Complaints-To: abuse@aioe.org
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.9.0
X-Notice: Filtered by postfilter v. 0.9.2
Content-Language: en-GB
Xref: reader01.eternal-september.org comp.lang.ada:59097
List-Id: <comp.lang.ada>

On 16/06/2020 15:25, Dmitry A. Kazakov wrote:
> On 16/06/2020 16:14, Niklas Holsti wrote:

>> I have no idea if this will help you -- the types in our case were
>> much simpler -- but you might try it with a small subset of your package:
>>
>>     Pixel_Format_Unknown     : constant Pixel_Format_Names :=
>>       (True, (NUL, NUL, NUL, NUL));
>>
>> (assuming "use Ada.Characters.Latin_1").
> 
> That is interesting. Was there the "others =>" part?
> 
> I can imagine that with "others => NUL" a static zeroed section were
> used with other parts written upon it during start.
> 
> P.S. I hope more people now see why compile-time subprograms are necessary.
> 

I don't think Ada needs compile-time subprograms, it just needs to
recognise actual static data which can be generated at compile time,
also the static_predicate could be evaluated by the compiler at runtime
too.