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-Thread: 103376,3a02b7ce112ec668 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!newsread1.news.pas.earthlink.net.POSTED!a6202946!not-for-mail From: Jeffrey Carter Organization: jrcarter commercial-at acm [period | full stop] org User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Strings as Parameters References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: Date: Tue, 05 Oct 2004 00:41:12 GMT NNTP-Posting-Host: 63.184.105.243 X-Complaints-To: abuse@earthlink.net X-Trace: newsread1.news.pas.earthlink.net 1096936872 63.184.105.243 (Mon, 04 Oct 2004 17:41:12 PDT) NNTP-Posting-Date: Mon, 04 Oct 2004 17:41:12 PDT Xref: g2news1.google.com comp.lang.ada:4690 Date: 2004-10-05T00:41:12+00:00 List-Id: Rick Santa-Cruz wrote: > If in a subprogram I wanna use a variable of type String then I > always have to specify, how long this String will be... for example > the following way: > procedure Main is > S: String(1..10); > begin > ... > end Main; This is not exactly true. Every object of type String must be constrained, but you don't always need explicit bounds. with PragmARC.Get_Line; procedure Martha is Text : String := PragmARC.Get_Line; begin -- Martha ... end Martha; This can be very powerful in combination with block statements: All_Input : loop Put (Prompt); One_Line : declare Line : String := PragmARC.Get_Line; begin -- One_Line exit All_Input when Time_To_Exit (Line); Process (Line); end One_Line; end loop All_Input; Every time through the loop, Line has a different value with different bounds. Sometimes the block statement can be eliminated: All_Input : loop Process (PragmARC.Get_Line); end loop All_Input; -- Jeff Carter "You tiny-brained wipers of other people's bottoms!" Monty Python & the Holy Grail 18