[Bug fortran/31917] New: GFORTRAN_CONVERT_UNIT is ignored

[Bug fortran/31917] New: GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

http://gcc.gnu.org/onlinedocs/gfortran/GFORTRAN_005fCONVERT_005fUNIT.html

Result (on x86_64/Linux):

GFORTRAN_CONVERT_UNIT set to ""
default:"LITTLE_ENDIAN"
native:"LITTLE_ENDIAN"
swap:"BIG_ENDIAN"
little_endian:"LITTLE_ENDIAN"
big_endian:"BIG_ENDIAN"

GFORTRAN_CONVERT_UNIT set to "BIG_ENDIAN"  ! same with "big_endian"
default:"LITTLE_ENDIAN"
native:"LITTLE_ENDIAN"
swap:"BIG_ENDIAN"
little_endian:"LITTLE_ENDIAN"
big_endian:"BIG_ENDIAN"


Test program

program conv
  implicit none
  character(20) :: ch
  CALL GET_ENVIRONMENT_VARIABLE('GFORTRAN_CONVERT_UNIT', ch)
  print '(3a)', 'GFORTRAN_CONVERT_UNIT set to "',trim(ch),'"'
  open(11,form='unformatted'); inquire(11,convert=ch)
  print '(3a)', 'default:"',trim(ch),'"'; close(11,status='delete')
  open(12,form='unformatted',convert="native")
  inquire(12,convert=ch)
  print '(3a)', 'native:"',trim(ch),'"'; close(12,status='delete')
  open(13,form='unformatted',convert="swap")
  inquire(13,convert=ch)
  print '(3a)', 'swap:"',trim(ch),'"'; close(13,status='delete')
  open(14,form='unformatted',convert="little_endian")
  inquire(14,convert=ch)
  print '(3a)', 'little_endian:"',trim(ch),'"'; close(14,status='delete')
  open(15,form='unformatted',convert="big_endian")
  inquire(15,convert=ch)
  print '(3a)', 'big_endian:"',trim(ch),'"'; close(15,status='delete')
end program conv


-- 
           Summary: GFORTRAN_CONVERT_UNIT is ignored
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] GFORTRAN_CONVERT_UNIT is ignored

[dominiq at lps dot ens dot fr]

------- Comment #1 from dominiq at lps dot ens dot fr  2007-05-14 08:52 -------
On PPC/darwin7 I get

[karma] f90/bug% a.out 
GFORTRAN_CONVERT_UNIT set to ""
default:"BIG_ENDIAN"
native:"BIG_ENDIAN"
swap:"LITTLE_ENDIAN"
little_endian:"LITTLE_ENDIAN"
big_endian:"BIG_ENDIAN"
[karma] f90/bug% setenv GFORTRAN_CONVERT_UNIT LITTLE_ENDIAN
[karma] f90/bug% a.out
GFORTRAN_CONVERT_UNIT set to "LITTLE_ENDIAN"
default:"BIG_ENDIAN"
native:"BIG_ENDIAN"
swap:"LITTLE_ENDIAN"
little_endian:"LITTLE_ENDIAN"
big_endian:"BIG_ENDIAN"

However I am confused about what to expect from this test:
should the default change or not?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

------- Comment #2 from burnus at gcc dot gnu dot org  2007-05-14 09:38 -------
> GFORTRAN_CONVERT_UNIT set to ""
> default:"BIG_ENDIAN"

> GFORTRAN_CONVERT_UNIT set to "LITTLE_ENDIAN"
> default:"BIG_ENDIAN"

> However I am confused about what to expect from this test:
> should the default change or not?

I would expect that the default changes depending on the environment variable.
But according to the documentation all should change:

"Note that the values specified via the GFORTRAN_CONVERT_UNIT environment
variable will override the CONVERT specifier in the open statement. This is to
give control over data formats to users who do not have the source code of
their program available."

Documentation "bug": Such a statement is missing for GFORTRAN_CONVERT_UNIT
section; it is only present in the CONVERT specifier section:
http://gcc.gnu.org/onlinedocs/gfortran/CONVERT-specifier.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] GFORTRAN_CONVERT_UNIT is ignored

[patchapp at dberlin dot org]

------- Comment #3 from patchapp at dberlin dot org  2007-05-14 20:05 -------
Subject: Bug number PR31917

A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2007-05/msg00900.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |burnus at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-05-14 20:07:35
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

------- Comment #4 from burnus at gcc dot gnu dot org  2007-05-17 09:39 -------
Subject: Bug 31917

Author: burnus
Date: Thu May 17 08:39:32 2007
New Revision: 124787

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124787
Log:
2007-05-14  Tobias Burnus <burnus@net-b.de>

        PR fortran/31917
        * runtime/environ.c (mark_range): Fix setting default convert unit.


Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/runtime/environ.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] [4.2, 4.1 only] GFORTRAN_CONVERT_UNIT is ignored

[tkoenig at gcc dot gnu dot org]

------- Comment #5 from tkoenig at gcc dot gnu dot org  2007-05-22 21:04 -------
Do you plan a backport?  If not, we should close this.


-- 

tkoenig at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.2.0 4.1.2
      Known to work|                            |4.3.0
            Summary|GFORTRAN_CONVERT_UNIT is    |[4.2, 4.1 only]
                   |ignored                     |GFORTRAN_CONVERT_UNIT is
                   |                            |ignored


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] [4.1 only] GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

------- Comment #6 from burnus at gcc dot gnu dot org  2007-05-23 08:44 -------
> Do you plan a backport?  If not, we should close this.
I decided to backport it in the basis that the failures are difficult to track
as there is not any feedback whether the environment are in effect or not.
Additionally, the fix is very localized.

Fixed.


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
      Known to fail|4.2.0 4.1.2                 |4.2.0
      Known to work|4.3.0                       |4.3.0 4.1.2
         Resolution|                            |FIXED
            Summary|[4.2, 4.1 only]             |[4.1 only]
                   |GFORTRAN_CONVERT_UNIT is    |GFORTRAN_CONVERT_UNIT is
                   |ignored                     |ignored
   Target Milestone|---                         |4.2.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917

[Bug fortran/31917] [4.1 only] GFORTRAN_CONVERT_UNIT is ignored

[burnus at gcc dot gnu dot org]

------- Comment #7 from burnus at gcc dot gnu dot org  2007-05-23 08:44 -------
Subject: Bug 31917

Author: burnus
Date: Wed May 23 07:44:23 2007
New Revision: 124984

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124984
Log:
2007-05-23  Tobias Burnus <burnus@net-b.de>

        PR fortran/31917
        Backport from trunk.
        * runtime/environ.c (mark_range): Fix setting default convert unit.


Modified:
    branches/gcc-4_2-branch/libgfortran/ChangeLog
    branches/gcc-4_2-branch/libgfortran/runtime/environ.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31917