From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=0.7 required=5.0 tests=BAYES_00,MSGID_RANDY
	autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,128f9cb06cca4d85
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2001-01-29 22:40:04 PST
Path: 
 supernews.google.com!sn-xit-02!supernews.com!news.gv.tsc.tdk.com!news.iac.net!news-out.cwix.com!newsfeed.cwix.com!news.maxwell.syr.edu!nntp2.deja.com!nnrp1.deja.com!not-for-mail
From: Robert Dewar <robert_dewar@my-deja.com>
Newsgroups: comp.lang.ada
Subject: Re: Very Large Arrays (VLAs)
Date: Tue, 30 Jan 2001 06:29:05 GMT
Organization: Deja.com
Message-ID: <955mvd$ca5$1@nnrp1.deja.com>
References: <3A7582BD.D51615EB@earthlink.net>
NNTP-Posting-Host: 205.232.38.14
X-Article-Creation-Date: Tue Jan 30 06:29:05 2001 GMT
X-Http-User-Agent: Mozilla/4.61 [en] (OS/2; U)
X-Http-Proxy: 1.0 x52.deja.com:80 (Squid/1.1.22) for client 205.232.38.14
X-MyDeja-Info: XMYDJUIDrobert_dewar
Xref: supernews.google.com comp.lang.ada:4686
Date: 2001-01-30T06:29:05+00:00
List-Id: <comp.lang.ada>

In article <3A7582BD.D51615EB@earthlink.net>,
  "Marc A. Criley" <mcquadex@earthlink.net> wrote:
> While it's certainly possible to declare very large
constrained arrays,
> where "very large" means an Index_Type'Range equaling or
exceeding
> Positive'Range, has anyone ever actually declared and used
such an array
> in production code?

Well by used you mean allocated here (certainly such types
are commonly used, see for example the GNAT.Table abstraction
in GNAT).

To allocate them is just a matter of available virtual
memory. Clearly if you declare

  type x is array (Natural) of Natural;
  v : x;

you are NOT going to succeed if you have only 32-bits of
address space :-)


Sent via Deja.com
http://www.deja.com/