[Bug libfortran/25419] New: gfortran read does not take comma for default on one entry

[Bug libfortran/25419] New: gfortran read does not take comma for default on one entry

[mast at colorado dot edu]

When there is a read statement expecting a single entry and a single
comma is entered, the read expects more input.

The test program is:

      stuff = 1
      stuff2 = 2
      write(*,'(1x,a,$)')'Enter 2 somethings: '
      read(5,*)stuff,stuff2
      write(*,'(1x,a,$)')'Enter something: '
      read(5,*)stuff
      call exit(0)
      end

[ashtray] image 205 % gfortran -o inputbug inputbug.f
[ashtray] image 206 % ./inputbug
 Enter 2 somethings: ,,
 Enter something: ,
,
/

[ashtray] image 207 %

It does not accept a , as a default entry for a single number, although two 
commas work when two numbers are expected.  Once it gets one comma it even
refuses a / until a second return is entered.

This happens on Fedora Core 4 with gcc-gfortran-4.0.2-8.fc4
and on Mac OSX 10.4 with gcc version 4.1.0 20051026 (experimental)


-- 
           Summary: gfortran read does not take comma for default on one
                    entry
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mast at colorado dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #1 from jvdelisle at gcc dot gnu dot org  2005-12-26 06:00 -------
I have a fix for this already.  Patch for submottal soon.


-- 

jvdelisle at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jvdelisle at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-12-26 06:00:20
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #2 from jvdelisle at gcc dot gnu dot org  2005-12-28 06:59 -------
Subject: Bug 25419

Author: jvdelisle
Date: Wed Dec 28 06:59:35 2005
New Revision: 109099

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109099
Log:
2005-12-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/25419
        * io/list_read.c (list_formatted_read_scalar): Allow comma to return a
        null value (default).

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/list_read.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #3 from jvdelisle at gcc dot gnu dot org  2005-12-28 07:00 -------
Subject: Bug 25419

Author: jvdelisle
Date: Wed Dec 28 07:00:47 2005
New Revision: 109100

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109100
Log:
2005-12-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/25419
        * gfortran.dg/comma.f: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/comma.f
Modified:
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #4 from jvdelisle at gcc dot gnu dot org  2005-12-30 07:03 -------
The patch in comment #2 causes PR25594.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #5 from jvdelisle at gcc dot gnu dot org  2006-01-01 02:45 -------
Subject: Bug 25419

Author: jvdelisle
Date: Sun Jan  1 02:45:22 2006
New Revision: 109211

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109211
Log:
2005-12-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/25594
        PR libgfortran/25419
        * io/list_read.c (list_formatted_read_scalar): Test for comma to return
        a null value (default). Revert patch of 25419 on 2005-12-28.  

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/list_read.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #6 from jvdelisle at gcc dot gnu dot org  2006-01-01 05:04 -------
Subject: Bug 25419

Author: jvdelisle
Date: Sun Jan  1 05:04:06 2006
New Revision: 109216

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109216
Log:
2005-12-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/25594
        PR libgfortran/25419
        * io/list_read.c (list_formatted_read_scalar): Test for comma to return
        a null value (default). Revert patch of 25419 on 2005-12-28.

Modified:
    branches/gcc-4_1-branch/libgfortran/ChangeLog
    branches/gcc-4_1-branch/libgfortran/io/list_read.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #7 from jvdelisle at gcc dot gnu dot org  2006-01-01 05:06 -------
Subject: Bug 25419

Author: jvdelisle
Date: Sun Jan  1 05:06:05 2006
New Revision: 109217

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109217
Log:
2005-12-28  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/25419
        * gfortran.dg/comma.f: New test.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/gfortran.dg/comma.f
Modified:
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[jvdelisle at gcc dot gnu dot org]

------- Comment #8 from jvdelisle at gcc dot gnu dot org  2006-01-01 05:16 -------
Fixed on 4.1 and 4.2


-- 

jvdelisle at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419

[Bug libfortran/25419] gfortran read does not take comma for default on one entry

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25419