re PR fortran/21432 (gfortran does not support printing of namelists)

2005-08-14 Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/21432.
	* io.c (match_io): Add code to implement PRINT namelist.


2005-08-14 Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/21432.
	* gfortran.dg/namelist_print_1.f: New test of functionality of
	PRINT namelist.
	* gfortran.dg/namelist_print_2.f: New test to check that PRINT
	namelist generates error with -std=f95.

From-SVN: r103079

gcc/fortran/ChangeLog

+2005-08-14 Paul Thomas  <pault@gcc.gnu.org>
+
+	PR fortran/21432.
+	* io.c (match_io): Add code to implement PRINT namelist.
+
 2005-08-14  Canqun Yang  <canqun@nudt.edu.cn>
 
 	* trans-stmt.c (gfc_trans_arithmetic_if): Optimized in case of equal

gcc/fortran/io.c

@@ -2133,6 +2133,30 @@ match_io (io_kind k)
 
   if (gfc_match_char ('(') == MATCH_NO)
     {
+      /* Treat the non-standard case of PRINT namelist.  */
+      if (k == M_PRINT && (gfc_match_name (name) == MATCH_YES)
+	    && !gfc_find_symbol (name, NULL, 1, &sym)
+	    && (sym->attr.flavor == FL_NAMELIST))
+	{
+	  if (gfc_notify_std (GFC_STD_GNU, "PRINT namelist at "
+			      "%C is an extension") == FAILURE)
+	    {
+ 	      m = MATCH_ERROR;
+	      goto cleanup;
+	    }
+	  if (gfc_match_eos () == MATCH_NO)
+	    {
+	      gfc_error ("Namelist followed by I/O list at %C");
+	      m = MATCH_ERROR;
+	      goto cleanup;
+	    }
+
+	  dt->io_unit = default_unit (k);
+	  dt->namelist = sym;
+	  goto get_io_list;
+	}
+
+
       if (k == M_WRITE)
 	goto syntax;
 

gcc/testsuite/ChangeLog

+2005-08-14 Paul Thomas  <pault@gcc.gnu.org>
+
+	PR fortran/21432.
+	* gfortran.dg/namelist_print_1.f: New test of functionality of
+	PRINT namelist.
+	* gfortran.dg/namelist_print_2.f: New test to check that PRINT
+	namelist generates error with -std=f95.
+
 2005-08-14  Ira Rosen  <irar@il.ibm.com>   
 
 	PR tree-optimization/23119

gcc/testsuite/gfortran.dg/namelist_print_1.f

+! Test Non standard PRINT namelist - PR21432
+!
+! Contributor Paul Thomas  <pault@gcc.gnu.org>
+!
+! { dg-do run }
+! { dg-options "-std=gnu" }
+
+      real  x
+      namelist /mynml/ x
+      x = 1
+! ( dg-output "^" }
+      print mynml ! { dg-output "&MYNML(\n|\r\n|\r) X=  1.000000    ,  /(\n|\r\n|\r)" }
+      end

gcc/testsuite/gfortran.dg/namelist_print_2.f

+! Test Non standard PRINT namelist - PR21432 is
+! not accepted by -std=f95
+!
+! Contributor Paul Thomas  <pault@gcc.gnu.org>
+!
+! { dg-do compile }
+! { dg-options "-std=f95" }
+!
+      real  x
+      namelist /mynml/ x
+      x = 1
+      print mynml  ! { dg-error "PRINT namelist.*extension" "" }
+      end