[Bug libfortran/25271] New: gfortran fails to pad lines in format statements to 72 characters.

[Bug libfortran/25271] New: gfortran fails to pad lines in format statements to 72 characters.

[dir at lanl dot gov]

g77 prints correctly, but gfortran fails to correctly pad lines in format
statements to 72 characters. The lines in the file are terminated with a line
feed after the last printable character. If the lines are padded with blanks
out beyond 72 characters gfortran then prints correctly. This was fixed before
-


[dranta:~/tests/gfortran-D] dir% g77 -o write07 write07.f
[dranta:~/tests/gfortran-D] dir% write07
1
          f o l l o w i n g    i s    a    c a r d    i m a g e    l i s t i n
g    o f    t h e    i n p u t    d a t a 

                                                          c o l u m n    n u m
b e r
                    card                1         2         3         4        
5         6         7         8
                   number     
12345678901234567890123456789012345678901234567890123456789012345678901234567890
                   ------     
--------------------------------------------------------------------------------
0          ********************************** e n d    o f    i n p u t    l i
s t i n g **********************************
[dranta:~/tests/gfortran-D] dir% gfortran -o write07 write07.f
[dranta:~/tests/gfortran-D] dir% write07
1
          f o l l o w i n g    i s    a    c a r d    i m a g e    l i s t i n
g    o f    t h e    i n p u t    d a t a 

                                                          c o l u m n    n u m
b e r
                    card                1         2       3         4         5
        6         7         8 /                   number     
12345678901234567890123456789012345678901234567890123456789012345678901234567890
                   ------     
--------------------------------------------------------------------------------
0          ********************************** e n d    o f    i n p u t    l i
s t in g ,**********************************
[dranta:~/tests/gfortran-D] dir% gfortran --v
Using built-in specs.
Target: powerpc-apple-darwin8.3.0
Configured with: ./configure --prefix=/Users/dir/gfortran
--enable-languages=c,f95
Thread model: posix
gcc version 4.2.0 20051205 (experimental)
[dranta:~/tests/gfortran-D] dir% cat write07.f
      program main
      write(6,2000)
      write(6,2030)

 2000 format(1h1/10x,111hf o l l o w i n g    i s    a    c a r d    i m
     1 a g e    l i s t i n g    o f    t h e    i n p u t    d a t a //
     t58x,26hc o l u m n    n u m b e r,/20x,4hcard,16x,71h1         2
     x       3         4         5         6         7         8 /
     y19x,6hnumber, 6x,80h1234567890123456789012345678901234567890123456
     z7890123456789012345678901234567890 /,19x,6(1h-),6x,80(1h-))

 2030 format(1h0,10x,34(1h*),44h e n d    o f    i n p u t    l i s t i
     1n g ,34(1h*))
c
      end


-- 
           Summary: gfortran fails to pad lines in format statements to 72
                    characters.
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dir at lanl dot gov
  GCC host triplet: powerpc-apple-darwin8.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug libfortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[dir at lanl dot gov]

------- Comment #1 from dir at lanl dot gov  2005-12-05 21:16 -------
Created an attachment (id=10411)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=10411&action=view)
problem file

This is the original problem file.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug libfortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[jvdelisle at gcc dot gnu dot org]

------- Comment #2 from jvdelisle at gcc dot gnu dot org  2005-12-06 02:27 -------
I see that g77 output differs from gfortran.

I also see gfortran and ifort agree 100%.

I am not sure which is right.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug libfortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[dir at lanl dot gov]

------- Comment #3 from dir at lanl dot gov  2005-12-06 13:47 -------
If you look at the output from format 2030, you will see that that comma at the
end of the "44h e n d..." statement is printed, but the comma is the 45th
character after the 44h . Like wise the '/' after the 8 is printed inspite of
being the 73 character after the start of the 71h format.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug libfortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[tobi at gcc dot gnu dot org]

------- Comment #4 from tobi at gcc dot gnu dot org  2005-12-08 12:41 -------
The lines are padded (see scanner.c:810), but this doesn't make it into the
format string, which could be construed to be a bug, but since this is not
something required by the standard (at least I think this was the consensus the
last time this came up) I'm downgrading this to enhancement.


-- 

tobi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tobi at gcc dot gnu dot org
           Severity|normal                      |enhancement
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-12-08 12:41:33
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug libfortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[dir at lanl dot gov]

------- Comment #5 from dir at lanl dot gov  2005-12-08 14:16 -------
Your are likely correct - it probability is not in the standard, but for the
first 15 years of FORTRAN, keypunches and card readers were the only way to
create and submit a program and they always pad to 80 characters - by
definition a line of FORTRAN was 80 character - since a card reader was the
only way to get a program to the computer. If the modern text editors, that
mostly truncate as they please had been around - the padding requirement would
have been in the standard. Actually, I am surprized that FORTRAN 77 did not add
that requirement to the standard.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug fortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[fxcoudert at gcc dot gnu dot org]

------- Comment #6 from fxcoudert at gcc dot gnu dot org  2006-07-06 21:00 -------
Unless I'm severely mistaken, this is not library issue but a front-end issue.


-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libfortran                  |fortran


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271

[Bug fortran/25271] gfortran fails to pad lines in format statements to 72 characters.

[fxcoudert at gcc dot gnu dot org]

------- Comment #7 from fxcoudert at gcc dot gnu dot org  2007-12-08 15:45 -------
Not standard and probably requires quite some work to get it working; closing
as WONTFIX, as per http://gcc.gnu.org/ml/fortran/2007-10/msg00263.html. If
someone comes up with a patch, it'll be of course be considered, but we don't
intend to provide one.


-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fxcoudert at gcc dot gnu dot
                   |                            |org
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25271