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=2.0 required=5.0 tests=BAYES_00,FORGED_MUA_MOZILLA, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,18352ac39491e701,start X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.238.65 with SMTP id vi1mr17092826pbc.7.1340725760934; Tue, 26 Jun 2012 08:49:20 -0700 (PDT) Path: l9ni22460pbj.0!nntp.google.com!news2.google.com!goblin1!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail From: "Nasser M. Abbasi" Newsgroups: comp.lang.ada Subject: Why this error, value not in range of subtype of "Standard.Integer"? Date: Tue, 26 Jun 2012 10:49:18 -0500 Organization: Aioe.org NNTP Server Message-ID: Reply-To: nma@12000.org NNTP-Posting-Host: KdJUrTuvv3Zv/s8pPxNluw.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Date: 2012-06-26T10:49:18-05:00 List-Id: experts; If I write this, I get an error as show: (notice the B matrix declaration, that is where the problem is) -------------- this does not work ------ with Ada.Numerics.Real_Arrays; use Ada.Numerics.Real_Arrays; procedure foo2 is A : constant Real_Matrix := (( 1.0, 2.0, 3.0), ( 4.0, 5.0, 6.0), ( 7.0, 8.0, 9.0)); B : Real_Matrix(1 .. 3,1 .. 3); -- this is the problem begin FOR I in A'range(1) LOOP FOR J in A'range(2) LOOP B(I,J) := 1.0; END LOOP; END LOOP; end foo2; ------------------------------- >gnatmake foo2.adb gcc-4.6 -c foo2.adb foo2.adb:13:17: warning: value not in range of subtype of "Standard.Integer" defined at line 8 foo2.adb:13:17: warning: "Constraint_Error" will be raised at run time foo2.adb:13:19: warning: value not in range of subtype of "Standard.Integer" defined at line 8 foo2.adb:13:19: warning: "Constraint_Error" will be raised at run time gnatbind -x foo2.ali gnatlink foo2.ali But if I change the declaration of B from B : Real_Matrix(1 .. 3,1 .. 3); to B : Real_Matrix(A'RANGE(1), A'RANGE(2)); then Ada is happy now. Isn't A'RANGE(1) the same as 1 .. 3 and A'RANGE(2) the same as 1 .. 3? or is this one of those typing issues? --------------------------------------------- with Ada.Numerics.Real_Arrays; use Ada.Numerics.Real_Arrays; procedure foo1 is A : constant Real_Matrix := (( 1.0, 2.0, 3.0), ( 4.0, 5.0, 6.0), ( 7.0, 8.0, 9.0)); B : Real_Matrix(A'RANGE(1), A'RANGE(2)); begin FOR I in A'range(1) LOOP FOR J in A'range(2) LOOP B(I,J) := 1.0; END LOOP; END LOOP; end foo1; ------------------------------ (one thing I like about Ada, is that once the program compiles clean, then it runs fine !) thanks --Nasser