[Bug fortran/31466] New: spurious error message when inner parentheses of a FORMAT statement are empty

[Bug fortran/31466] New: spurious error message when inner parentheses of a FORMAT statement are empty

[michael dot a dot richmond at nasa dot gov]

When I compile the program listed below I receive a spurious error message:

test134.f90:2.11:

1 FORMAT(())
          1
Error: Unexpected element in format string at (1)

PROGRAM test134
1 FORMAT(())
END


-- 
           Summary: spurious error message when inner parentheses of a
                    FORMAT statement are empty
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: michael dot a dot richmond at nasa dot gov


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31466

[Bug fortran/31466] spurious error message when inner parentheses of a FORMAT statement are empty

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2007-04-03 21:58 -------
I believe this bug is invalid as the format string is invalid.

NAG f95 also claims:
*** Malformed format specification

Reasoning:
R1001 format-stmt is FORMAT format-specification
R1002 format-specification is ( [ format-item-list ] )

Thus the question is whether "()" is a valid format-item(-list).

R1003 format-item is [ r ] data-edit-desc
                  or control-edit-desc
                  or char-string-edit-desc
                  or [ r ] ( format-item-list )
R1004 r is int-literal-constant

I would claim that "()" is not
- a data-edit-desc
- a char-string-edit-desc

It matches however, "( format-item-list )", but then I would claim that "" is
not:
- a data-edit-desc
- a char-string-edit-desc
- ( format-item-list )


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31466

[Bug fortran/31466] spurious error message when inner parentheses of a FORMAT statement are empty

[jvdelisle at gcc dot gnu dot org]

------- Comment #2 from jvdelisle at gcc dot gnu dot org  2007-04-04 00:28 -------
Lahey reports this as a fatal syntax error.

Checking file SOURCE.F90.
Checking program unit TEST134 at line 1.
Line 2, file SOURCE.F90
1 FORMAT(())
|         |
FATAL -- Essential LF90 requires that defined labels be referenced.
FATAL -- Syntax error.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31466

[Bug fortran/31466] spurious error message when inner parentheses of a FORMAT statement are empty

[tobi at gcc dot gnu dot org]

------- Comment #3 from tobi at gcc dot gnu dot org  2007-04-07 16:54 -------
I verified Tobias' reading of the standard.  Closing as invalid.  Perhaps the
error message could be more helpful.


-- 

tobi at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tobi at gcc dot gnu dot org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31466