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From: Matthias Klose <doko@net.local> To: gcc-gnats@gcc.gnu.org, debian-gcc@lists.debian.org Subject: ada/10889: Convention Fortran matrices mishandled in generics Date: Tue, 20 May 2003 21:46:00 -0000 [thread overview] Message-ID: <E19IEpf-0003cY-7y@tango.net.local> (raw) >Number: 10889 >Category: ada >Synopsis: Convention Fortran matrices mishandled in generics >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Tue May 20 21:46:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: Duncan Sands <duncan.sands@math.u-psud.fr> >Release: 3.3 (Debian) (Debian testing/unstable) >Organization: The Debian Project >Environment: System: Debian GNU/Linux (unstable) Architecture: i686 >Description: [ Reported to the Debian BTS as report #192135. Please CC 192135@bugs.debian.org on replies. Log of report can be found at http://bugs.debian.org/192135 ] Consider the following test program. It prints out the matrix A twice, using identical code. However the second copy of the code is wrapped up in a generic. Notice how the rows and columns are swapped in the second print out? This only occurs when the matrix is declared to be of convention Fortran. This bug is present in 3.14p to current 3.3. All the best, Duncan. with Ada.Text_IO; use Ada.Text_IO; procedure Bug is subtype Index is Integer range 1 .. 2; type Matrix is array (Index, Index) of Integer; pragma Convention (Fortran, Matrix); generic type Matrix is array (Index, Index) of Integer; procedure Print_Out (A : Matrix); procedure Print_Out (A : Matrix) is begin for I in A'Range (1) loop for J in A'Range (2) loop Put (Integer'Image (A (I, J))); end loop; New_Line; end loop; end Print_Out; procedure Print is new Print_Out (Matrix); A : Matrix; begin for I in A'Range (1) loop for J in A'Range (2) loop A (I, J) := 10 * I + J; end loop; end loop; for I in A'Range (1) loop for J in A'Range (2) loop Put (Integer'Image (A (I, J))); end loop; New_Line; end loop; New_Line; Print (A); end Bug; >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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