re PR fortran/34654 (no unformatted on internal file)

2008-01-06  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34654
        * io.c (check_io_constraints): Disallow unformatted I/O for
        internal units.

2008-01-06  Tobias Burnus  <burnus@net-b.de>

        PR fortran/34654
        * gfortran.dg/internal_io_unf.f90: New.

From-SVN: r131350

gcc/fortran/ChangeLog

 2008-01-06  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/34654
+	* io.c (check_io_constraints): Disallow unformatted I/O for
+	internal units.
+
+2008-01-06  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/34660
 	* resolve.c (resolve_formal_arglist): Reject dummy procedure in
 	ELEMENTAL functions.

gcc/fortran/io.c

@@ -2669,6 +2669,11 @@ if (condition) \
 		     "REC tag at %L is incompatible with internal file",
 		     &dt->rec->where);
 
+      io_constraint (dt->format_expr == NULL && dt->format_label == NULL
+		     && dt->namelist == NULL,
+		     "Unformatted I/O not allowed with internal unit at %L",
+		     &dt->io_unit->where);
+
       if (dt->namelist != NULL)
 	{
 	  if (gfc_notify_std (GFC_STD_F2003, "Fortran 2003: Internal file "

gcc/testsuite/ChangeLog

 2008-01-06  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/34654
+	* gfortran.dg/internal_io_unf.f90: New.
+
+2008-01-06  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/34660
 	* gfortran.dg/elemental_args_check_2.f90: New.
 

gcc/testsuite/gfortran.dg/internal_io_unf.f90

+! { dg-do compile }
+!
+! PR fortran/34654
+!
+! Disallow unformatted write to internal unit.
+! Test case was contributed by Joost VandeVondele.
+!
+implicit none
+CHARACTER :: a(3)
+WRITE(a) 0 ! { dg-error "Unformatted I/O not allowed with internal unit" }
+END