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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,df03e50c9b0ea255
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2002-06-26 17:26:56 PST
Newsgroups: comp.lang.ada
Path: 
 archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!nntp.abs.net!uunet!dca.uu.net!ash.uu.net!world!news
From: Robert A Duff <bobduff@shell01.TheWorld.com>
Subject: Re: On functions and access types.
Sender: news@world.std.com (Mr Usenet Himself)
Message-ID: <wccu1np36vw.fsf@shell01.TheWorld.com>
Date: Thu, 27 Jun 2002 00:25:07 GMT
References: <eFrS8.4786$Uu2.750@sccrnsc03>
NNTP-Posting-Host: shell01.theworld.com
Organization: The World Public Access UNIX, Brookline, MA
X-Newsreader: Gnus v5.7/Emacs 20.7
Xref: archiver1.google.com comp.lang.ada:26729
Date: 2002-06-27T00:25:07+00:00
List-Id: <comp.lang.ada>

Caffeine Junky <nospam@hotmail.com> writes:

> Now the compiler tells me that I cannot assign to an 'in' parameter.
> However, as I understand it, a function can only take an 'in' parameter.

That's right.  If you want a function to modify its argument,
you can use an access parameter, like "S: access Stack;",
and call it with Some_Stack'Access.

But in this case, it's better to use a procedure.

> Now, eventually I changed this to a procedure for the sake of expediancy.

That's the right solution.

- Bob