[Bug fortran/25036] New: Reopening a file with STATUS='UNKNOWN' should work

[Bug fortran/25036] New: Reopening a file with STATUS='UNKNOWN' should work

[jb at gcc dot gnu dot org]

The program

       program test
       integer :: fh = 71
       open(fh, file="f", form='unformatted', status='unknown')
!      close(fh)
       open(fh, file="f", form='unformatted', status='unknown')
       end program

fails with

At line 5 of file file-status-old.f90
Fortran runtime error: OPEN statement must have a STATUS of OLD

The F2003 standard says that if status='unknown', which is the same as if no
status specifier is present, then the status is processor dependent. So
technically this is not a standard conformance bug, but it's still a problem
for some real codes, and it doesn't cost us anything to allow it.

Thanks to Bernhard Fischer for bringing up this problem.


-- 
           Summary: Reopening a file with STATUS='UNKNOWN' should work
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: jb at gcc dot gnu dot org
        ReportedBy: jb at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25036

[Bug fortran/25036] Reopening a file with STATUS='UNKNOWN' should work

[jb at gcc dot gnu dot org]

------- Comment #1 from jb at gcc dot gnu dot org  2005-11-25 19:13 -------
Also, g77 (and pathscale and ifort) support reopening files with
status='unknown'.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25036

[Bug fortran/25036] Reopening a file with STATUS='UNKNOWN' should work

[jb at gcc dot gnu dot org]

------- Comment #2 from jb at gcc dot gnu dot org  2005-11-25 20:39 -------
Patch here: http://gcc.gnu.org/ml/fortran/2005-11/msg00677.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25036

[Bug fortran/25036] Reopening a file with STATUS='UNKNOWN' should work

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2005-11-25 20:40 -------
Confirmed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |19292
              nThis|                            |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-11-25 20:40:27
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25036

[Bug fortran/25036] Reopening a file with STATUS='UNKNOWN' should work

[jb at gcc dot gnu dot org]

------- Comment #4 from jb at gcc dot gnu dot org  2005-11-26 08:52 -------
This seems to be a duplicate of PR 24945. Sorry.

*** This bug has been marked as a duplicate of 24945 ***


-- 

jb at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25036