[Bug fortran/31553] New: incorrect processing of formatted character output

[Bug fortran/31553] New: incorrect processing of formatted character output

[brad dot finney at humboldt dot edu]

"a" edit descriptor for character output produces repeatable, but incorrect
output in some situations when the width of the field is not explicitly
specified in the edit descriptor, but is inferred from the number of characters
in the write list item.


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           Summary: incorrect processing of formatted character output
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: brad dot finney at humboldt dot edu
 GCC build triplet: 4.3.0
  GCC host triplet: i386-pc-mingw32
GCC target triplet: i386-pc-mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553

[Bug fortran/31553] incorrect processing of formatted character output

[brad dot finney at humboldt dot edu]

------- Comment #1 from brad dot finney at humboldt dot edu  2007-04-12 18:20 -------
Created an attachment (id=13359)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13359&action=view)
test program demonstrating bug behavior along with program output


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553

[Bug fortran/31553] incorrect processing of formatted character output

[brad dot finney at humboldt dot edu]

------- Comment #2 from brad dot finney at humboldt dot edu  2007-04-12 18:22 -------
same bug noted on version 4.0.3 (intel linux 64bit) noted.


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brad dot finney at humboldt dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |brad dot finney at humboldt
                   |                            |dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553

[Bug fortran/31553] incorrect processing of formatted character output

[burnus at gcc dot gnu dot org]

------- Comment #3 from burnus at gcc dot gnu dot org  2007-04-12 19:00 -------
Which version are you using under i386-pc-mingw32? (I see "Reported against
4.3.0, however - see below.)

I'm asking because "4.0.3 (intel linux 64bit)" is very old. GCC 4.0.x contained
the freshly added and still a bit buggy gfortran. One should use version 4.1.x,
which is much more stable, or the 4.2.0 or 4.3.0 which contain even fewer
Fortran bugs. Binaries are available from:
http://gcc.gnu.org/wiki/GFortranBinaries

Using
  gfortran 4.1.3 20070302 (prerelease)
  gfortran 4.2.0 20070412 (prerelease)
  gfortran 4.3.0 20070412 (experimental)
I get the same result as with NAG f95, sunf95 and Intel ifort:

 (    4(a,' | '))
1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
1234 | 12345678 | 1234567890123456 | 12345678901234567890 |


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553

[Bug fortran/31553] incorrect processing of formatted character output

[brad dot finney at humboldt dot edu]

------- Comment #4 from brad dot finney at humboldt dot edu  2007-04-12 20:29 -------
(In reply to comment #3)
> Which version are you using under i386-pc-mingw32? (I see "Reported against
> 4.3.0, however - see below.)
> 

gcc version 4.3.0 20061021

I had not tried on the latest version, so I apologize for posting a problem
that has already been corrected.

> I'm asking because "4.0.3 (intel linux 64bit)" is very old. GCC 4.0.x contained
> the freshly added and still a bit buggy gfortran. One should use version 4.1.x,
> which is much more stable, or the 4.2.0 or 4.3.0 which contain even fewer
> Fortran bugs. Binaries are available from:
> http://gcc.gnu.org/wiki/GFortranBinaries
> 
> Using
>   gfortran 4.1.3 20070302 (prerelease)
>   gfortran 4.2.0 20070412 (prerelease)
>   gfortran 4.3.0 20070412 (experimental)
> I get the same result as with NAG f95, sunf95 and Intel ifort:
> 
>  (    4(a,' | '))
> 1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
> 1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
> 1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
> 1234 | 12345678 | 1234567890123456 | 12345678901234567890 |
> 

As do I with version 4.3.0 20070406

Thanks, and again sorry.  I did check the list of bugs first, but didn't see
one that seemed to fit.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553

[Bug fortran/31553] incorrect processing of formatted character output

[fxcoudert at gcc dot gnu dot org]

------- Comment #5 from fxcoudert at gcc dot gnu dot org  2007-04-13 15:04 -------
Closing according to comments.


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fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31553