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,a8567eadfdf78b98,start X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-10-15 15:12:51 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news.tele.dk!small.news.tele.dk!192.71.180.34!newsfeed1.swip.net!swipnet!nntpserver.swip.net!not-for-mail Message-ID: <3DAC92DB.4090307@linux.nu> From: svesse User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Why does this happen? Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 213.100.0.242 X-Complaints-To: news-abuse@swip.net X-Trace: nntpserver.swip.net 1034719962 213.100.0.242 (Wed, 16 Oct 2002 00:12:42 MET DST) NNTP-Posting-Date: Wed, 16 Oct 2002 00:12:42 MET DST Organization: A Customer of Tele2 X-Sender: -@c213-100-0-242.swipnet.se Date: Wed, 16 Oct 2002 00:12:43 +0200 Xref: archiver1.google.com comp.lang.ada:29822 Date: 2002-10-16T00:12:43+02:00 List-Id: Hello, I got a question regarding the enclosed code which compiles on Rational Apex and on old GNAT versions (at least on 3.11p). However in GNAT 3.14p the following error message is shown : gnatmake test.adb gcc -c test.adb test.ads: In function `test__proc': test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' test.ads:6: prior parameter's size depends on `ns' gnatmake: "test.adb" compilation error if any of the two commented lines are used instead it also compiles on GNAT 3.14p Can someone explain why this would be illegal ? ---- test.ads --- package test is Type Mtr_Type is array (Positive range <>, Positive range <>) of integer; type T_typ (Ns : Positive) is record M : Mtr_Type (1..2, 1 .. ns); -- does not compile -- M : Mtr_Type (1..Ns, 1..Ns); -- compiles -- M : Mtr_Type (1..Ns, 1..2); -- compiles end record; function Func (Left : Mtr_Type) return Mtr_Type; procedure Proc (T : in out T_Typ); end test; ---------- ---- test.adb ---- package body test is function Func (Left : Mtr_Type) return Mtr_Type is begin return Left; end Func; procedure Proc(T : in out T_Typ) is begin T.M := Func(T.M); end Proc; end test; -------