From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-433520-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 15630 invoked by alias); 5 Nov 2013 06:40:21 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 14955 invoked by uid 48); 5 Nov 2013 06:38:18 -0000
From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/58998] New: [4.8/4.9 Regression] Generic interface problem with gfortran
Date: Tue, 05 Nov 2013 06:40:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 4.9.0
X-Bugzilla-Keywords: rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status keywords bug_severity priority component assigned_to reporter
Message-ID: <bug-58998-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2013-11/txt/msg00297.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58998

            Bug ID: 58998
           Summary: [4.8/4.9 Regression] Generic interface problem with
                    gfortran
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org

Paul van Delst reports at
https://groups.google.com/forum/#!topic/comp.lang.fortran/MzOnH6_yvPU the
following issue.

Compiles with GCC 4.4.6, 4.6, 4.7.3, ifort v12.4 and PGI v11.
Fails with GCC 4.8 and 4.9 with:
           iargc_8=iargc()
                   1
Error: Function 'iargc_8' at (1) cannot be called recursively, as it is
not RECURSIVE

Conclusion of Robert Corbett and Richard Maine was that the code is ugly but
valid.


   module args_mod
     interface iargc
       module procedure iargc_8
     end interface
     interface getarg
       subroutine getarg(k,c)
         integer(4) k
         character*(*) c
       end subroutine getarg
       module procedure getarg_8
     end interface
   contains
     integer(8) function iargc_8()
       integer(4) iargc
       iargc_8=iargc()
     end function iargc_8
     subroutine getarg_8(k,c)
       integer(8) k
       character*(*) c
       integer(4) k4
       k4=k
       call getarg(k4,c)
     end subroutine getarg_8
   end module args_mod