re PR fortran/37498 (Incorrect array value returned - 4.3 ABI Broken)

2008-09-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org

	PR libfortran/37498
	* list_read.c (eat_separator): Revert previous patch and move
	delim_status, decimal_status, and pad_status to gfc_unit.
	(parse_real): Ditto. (read_real): Ditto.
	* read.c (read_a): Likewise. (read_a_char4): Likewise.
	(read_f): Likewise.
	* inquire.c (inquire_via_unit): Add missing check for
	IOPARM_INQUIRE_HAS_FLAGS2. (inquire_via_filename): Likewise.
	* io.h (unit_sign_s): Move delim_status, decimal_status, and pad_status
	to gfc_unit.
	* transfer.c (read_sf): Ditto. (read_block_form): Ditto.
	(formatted_transfer_scalar): Ditto. (data_transfer_init): Ditto.
	* write.c (write_default_char4): Ditto. (write_utf8_char4): Ditto.
	(write_character): Ditto. (write_real_g0): Ditto.
	(list_formatted_write_scalar): Ditto. (nml_write_obj): Ditto.
	(namelist_write): Ditto.
	* write_float.def (calculate_sign): Ditto. (output_float): Ditto.

From-SVN: r140684

8 files changed, 228 insertions, 266 deletions

diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 660be43..150fc15 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,23 @@
+2008-09-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org
+
+	PR libfortran/37498
+	* list_read.c (eat_separator): Revert previous patch and move
+	delim_status, decimal_status, and pad_status to gfc_unit.
+	(parse_real): Ditto. (read_real): Ditto.
+	* read.c (read_a): Likewise. (read_a_char4): Likewise.
+	(read_f): Likewise.
+	* inquire.c (inquire_via_unit): Add missing check for
+	IOPARM_INQUIRE_HAS_FLAGS2. (inquire_via_filename): Likewise.
+	* io.h (unit_sign_s): Move delim_status, decimal_status, and pad_status
+	to gfc_unit.
+	* transfer.c (read_sf): Ditto. (read_block_form): Ditto.
+	(formatted_transfer_scalar): Ditto. (data_transfer_init): Ditto.
+	* write.c (write_default_char4): Ditto. (write_utf8_char4): Ditto.
+	(write_character): Ditto. (write_real_g0): Ditto.
+	(list_formatted_write_scalar): Ditto. (nml_write_obj): Ditto.
+	(namelist_write): Ditto.
+	* write_float.def (calculate_sign): Ditto. (output_float): Ditto.
+
 2008-09-24  Tobias Burnus  <burnus@net-b.de>
 
 	* runtime/compile_options.c (init_compile_options):
diff --git a/libgfortran/io/inquire.c b/libgfortran/io/inquire.c
index 9eb63d7..3b5f3f7 100644
--- a/libgfortran/io/inquire.c
+++ b/libgfortran/io/inquire.c
@@ -252,125 +252,128 @@ inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
       cf_strcpy (iqp->pad, iqp->pad_len, p);
     }
 
-  if ((cf2 & IOPARM_INQUIRE_HAS_PENDING) != 0)
-    *iqp->pending = 0;
-  
-  if ((cf2 & IOPARM_INQUIRE_HAS_ID) != 0)
-    *iqp->id = 0;
-
-  if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+  if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
     {
-      if (u == NULL || u->flags.form != FORM_FORMATTED)
-	p = undefined;
-      else
-	switch (u->flags.encoding)
-	  {
-	  case ENCODING_DEFAULT:
-	    p = "UNKNOWN";
-	    break;
-	  case ENCODING_UTF8:
-	    p = "UTF-8";
-	    break;
-	  default:
-	    internal_error (&iqp->common, "inquire_via_unit(): Bad encoding");
-	  }
-
-      cf_strcpy (iqp->encoding, iqp->encoding_len, p);
-    }
-
-  if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
-    {
-      if (u == NULL || u->flags.form != FORM_FORMATTED)
-	p = undefined;
-      else
-	switch (u->flags.decimal)
-	  {
-	  case DECIMAL_POINT:
-	    p = "POINT";
-	    break;
-	  case DECIMAL_COMMA:
-	    p = "COMMA";
-	    break;
-	  default:
-	    internal_error (&iqp->common, "inquire_via_unit(): Bad comma");
-	  }
-
-      cf_strcpy (iqp->decimal, iqp->decimal_len, p);
-    }
-
-  if ((cf2 & IOPARM_INQUIRE_HAS_ASYNCHRONOUS) != 0)
-    {
-      if (u == NULL)
-	p = undefined;
-      else
-	switch (u->flags.async)
-	  {
-	  case ASYNC_YES:
-	    p = "YES";
-	    break;
-	  case ASYNC_NO:
-	    p = "NO";
-	    break;
-	  default:
-	    internal_error (&iqp->common, "inquire_via_unit(): Bad async");
-	  }
+      if ((cf2 & IOPARM_INQUIRE_HAS_PENDING) != 0)
+	*iqp->pending = 0;
+  
+      if ((cf2 & IOPARM_INQUIRE_HAS_ID) != 0)
+        *iqp->id = 0;
 
-      cf_strcpy (iqp->asynchronous, iqp->asynchronous_len, p);
-    }
+      if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+	{
+	  if (u == NULL || u->flags.form != FORM_FORMATTED)
+	    p = undefined;
+          else
+	    switch (u->flags.encoding)
+	      {
+	      case ENCODING_DEFAULT:
+		p = "UNKNOWN";
+		break;
+	      case ENCODING_UTF8:
+		p = "UTF-8";
+		break;
+	      default:
+		internal_error (&iqp->common, "inquire_via_unit(): Bad encoding");
+	      }
+
+	  cf_strcpy (iqp->encoding, iqp->encoding_len, p);
+	}
 
-  if ((cf2 & IOPARM_INQUIRE_HAS_SIGN) != 0)
-    {
-      if (u == NULL)
-	p = undefined;
-      else
-	switch (u->flags.sign)
-	  {
-	  case SIGN_PROCDEFINED:
-	    p = "PROCESSOR_DEFINED";
-	    break;
-	  case SIGN_SUPPRESS:
-	    p = "SUPPRESS";
-	    break;
-	  case SIGN_PLUS:
-	    p = "PLUS";
-	    break;
-	  default:
-	    internal_error (&iqp->common, "inquire_via_unit(): Bad sign");
-	  }
+      if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
+	{
+	  if (u == NULL || u->flags.form != FORM_FORMATTED)
+	    p = undefined;
+	  else
+	    switch (u->flags.decimal)
+	      {
+	      case DECIMAL_POINT:
+		p = "POINT";
+		break;
+	      case DECIMAL_COMMA:
+		p = "COMMA";
+		break;
+	      default:
+		internal_error (&iqp->common, "inquire_via_unit(): Bad comma");
+	      }
+
+	  cf_strcpy (iqp->decimal, iqp->decimal_len, p);
+	}
 
-      cf_strcpy (iqp->sign, iqp->sign_len, p);
-    }
+      if ((cf2 & IOPARM_INQUIRE_HAS_ASYNCHRONOUS) != 0)
+	{
+	  if (u == NULL)
+	    p = undefined;
+	  else
+	    switch (u->flags.async)
+	    {
+	      case ASYNC_YES:
+		p = "YES";
+		break;
+	      case ASYNC_NO:
+		p = "NO";
+		break;
+	      default:
+		internal_error (&iqp->common, "inquire_via_unit(): Bad async");
+	    }
+
+	  cf_strcpy (iqp->asynchronous, iqp->asynchronous_len, p);
+	}
 
-  if ((cf2 & IOPARM_INQUIRE_HAS_ROUND) != 0)
-    {
-      if (u == NULL)
-	p = undefined;
-      else
-	switch (u->flags.round)
-	  {
-	  case ROUND_UP:
-	    p = "UP";
-	    break;
-	  case ROUND_DOWN:
-	    p = "DOWN";
-	    break;
-	  case ROUND_ZERO:
-	    p = "ZERO";
-	    break;
-	  case ROUND_NEAREST:
-	    p = "NEAREST";
-	    break;
-	  case ROUND_COMPATIBLE:
-	    p = "COMPATIBLE";
-	    break;
-	  case ROUND_PROCDEFINED:
-	    p = "PROCESSOR_DEFINED";
-	    break;
-	  default:
-	    internal_error (&iqp->common, "inquire_via_unit(): Bad round");
-	  }
+      if ((cf2 & IOPARM_INQUIRE_HAS_SIGN) != 0)
+	{
+	  if (u == NULL)
+	    p = undefined;
+	  else
+	    switch (u->flags.sign)
+	    {
+	      case SIGN_PROCDEFINED:
+		p = "PROCESSOR_DEFINED";
+		break;
+	      case SIGN_SUPPRESS:
+		p = "SUPPRESS";
+		break;
+	      case SIGN_PLUS:
+		p = "PLUS";
+		break;
+	      default:
+		internal_error (&iqp->common, "inquire_via_unit(): Bad sign");
+	    }
+
+	  cf_strcpy (iqp->sign, iqp->sign_len, p);
+	}
 
-      cf_strcpy (iqp->round, iqp->round_len, p);
+      if ((cf2 & IOPARM_INQUIRE_HAS_ROUND) != 0)
+	{
+	  if (u == NULL)
+	    p = undefined;
+	  else
+	    switch (u->flags.round)
+	    {
+	      case ROUND_UP:
+		p = "UP";
+		break;
+	      case ROUND_DOWN:
+		p = "DOWN";
+		break;
+	      case ROUND_ZERO:
+		p = "ZERO";
+		break;
+	      case ROUND_NEAREST:
+		p = "NEAREST";
+		break;
+	      case ROUND_COMPATIBLE:
+		p = "COMPATIBLE";
+		break;
+	      case ROUND_PROCDEFINED:
+		p = "PROCESSOR_DEFINED";
+		break;
+	      default:
+		internal_error (&iqp->common, "inquire_via_unit(): Bad round");
+	    }
+
+	  cf_strcpy (iqp->round, iqp->round_len, p);
+	}
     }
 
   if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
@@ -581,14 +584,26 @@ inquire_via_filename (st_parameter_inquire *iqp)
   if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
     cf_strcpy (iqp->pad, iqp->pad_len, undefined);
 
-  if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
-    cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
+  if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
+    {
+      if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+	cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
   
-  if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
-    cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+      if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
+	cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+
+      if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
+	cf_strcpy (iqp->decimal, iqp->decimal_len, undefined);
 
-  if ((cf2 & IOPARM_INQUIRE_HAS_DECIMAL) != 0)
-    cf_strcpy (iqp->decimal, iqp->decimal_len, undefined);
+      if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
+	cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+
+      if ((cf2 & IOPARM_INQUIRE_HAS_PAD) != 0)
+	cf_strcpy (iqp->pad, iqp->pad_len, undefined);
+  
+      if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
+	cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
+    }
 
   if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
     cf_strcpy (iqp->position, iqp->position_len, undefined);
@@ -613,15 +628,6 @@ inquire_via_filename (st_parameter_inquire *iqp)
       p = inquire_read (iqp->file, iqp->file_len);
       cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
     }
-
-  if ((cf2 & IOPARM_INQUIRE_HAS_DELIM) != 0)
-    cf_strcpy (iqp->delim, iqp->delim_len, undefined);
-
-  if ((cf2 & IOPARM_INQUIRE_HAS_PAD) != 0)
-    cf_strcpy (iqp->pad, iqp->pad_len, undefined);
-  
-  if ((cf2 & IOPARM_INQUIRE_HAS_ENCODING) != 0)
-    cf_strcpy (iqp->encoding, iqp->encoding_len, undefined);
 }
 
 
diff --git a/libgfortran/io/io.h b/libgfortran/io/io.h
index 1f6041d..710224d 100644
--- a/libgfortran/io/io.h
+++ b/libgfortran/io/io.h
@@ -541,9 +541,6 @@ typedef struct st_parameter_44
      kind.  */
   char value[32];
   gfc_offset size_used;
-  unit_pad pad_status;
-  unit_decimal decimal_status;
-  unit_delim delim_status;
 } st_parameter_44;
 
 typedef struct st_parameter_dt
@@ -646,6 +643,9 @@ typedef struct gfc_unit
 
   unit_mode mode;
   unit_flags flags;
+  unit_pad pad_status;
+  unit_decimal decimal_status;
+  unit_delim delim_status;
 
   /* recl                 -- Record length of the file.
      last_record          -- Last record number read or written
diff --git a/libgfortran/io/list_read.c b/libgfortran/io/list_read.c
index 47f4786..bcde3e1 100644
--- a/libgfortran/io/list_read.c
+++ b/libgfortran/io/list_read.c
@@ -324,8 +324,7 @@ eat_separator (st_parameter_dt *dtp)
   switch (c)
     {
     case ',':
-      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	  && dtp->u.p.decimal_status == DECIMAL_COMMA)
+      if (dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
 	{
 	  unget_char (dtp, c);
 	  break;
@@ -935,8 +934,8 @@ read_character (st_parameter_dt *dtp, int length __attribute__ ((unused)))
     default:
       if (dtp->u.p.namelist_mode)
 	{
-	  if (dtp->u.p.delim_status == DELIM_APOSTROPHE
-	      || dtp->u.p.delim_status == DELIM_QUOTE
+	  if (dtp->u.p.current_unit->delim_status == DELIM_APOSTROPHE
+	      || dtp->u.p.current_unit->delim_status == DELIM_QUOTE
 	      || c == '&' || c == '$' || c == '/')
 	    {
 	      unget_char (dtp, c);
@@ -1117,8 +1116,7 @@ parse_real (st_parameter_dt *dtp, void *buffer, int length)
       c = next_char (dtp);
     }
 
-  if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-      && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+  if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
     c = '.';
   
   if (!isdigit (c) && c != '.')
@@ -1136,8 +1134,7 @@ parse_real (st_parameter_dt *dtp, void *buffer, int length)
   for (;;)
     {
       c = next_char (dtp);
-      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	  && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+      if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
 	c = '.';
       switch (c)
 	{
@@ -1308,17 +1305,9 @@ eol_1:
   else
     unget_char (dtp, c);
 
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    {
-      if (next_char (dtp)
-	  !=  (dtp->u.p.decimal_status == DECIMAL_POINT ? ',' : ';'))
-	goto bad_complex;
-    }
-  else
-    {
-      if (next_char (dtp) != ',')
-	goto bad_complex;
-    }
+  if (next_char (dtp)
+      !=  (dtp->u.p.current_unit->decimal_status == DECIMAL_POINT ? ',' : ';'))
+    goto bad_complex;
 
 eol_2:
   eat_spaces (dtp);
@@ -1371,8 +1360,7 @@ read_real (st_parameter_dt *dtp, int length)
   seen_dp = 0;
 
   c = next_char (dtp);
-  if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-      && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+  if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
     c = '.';
   switch (c)
     {
@@ -1409,8 +1397,7 @@ read_real (st_parameter_dt *dtp, int length)
   for (;;)
     {
       c = next_char (dtp);
-      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	  && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+      if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
 	c = '.';
       switch (c)
 	{
@@ -1476,8 +1463,7 @@ read_real (st_parameter_dt *dtp, int length)
       c = next_char (dtp);
     }
 
-  if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-      && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+  if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
     c = '.';
 
   if (!isdigit (c) && c != '.')
@@ -1502,8 +1488,7 @@ read_real (st_parameter_dt *dtp, int length)
   for (;;)
     {
       c = next_char (dtp);
-      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	  && c == ',' && dtp->u.p.decimal_status == DECIMAL_COMMA)
+      if (c == ',' && dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA)
 	c = '.';
       switch (c)
 	{
diff --git a/libgfortran/io/read.c b/libgfortran/io/read.c
index e35a7b1..5fb1e3c 100644
--- a/libgfortran/io/read.c
+++ b/libgfortran/io/read.c
@@ -440,9 +440,8 @@ read_a (st_parameter_dt *dtp, const fnode *f, char *p, int length)
   else
     read_default_char1 (dtp, p, length, w);
 
-  dtp->u.p.sf_read_comma = 1;
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    dtp->u.p.sf_read_comma = dtp->u.p.decimal_status == DECIMAL_COMMA ? 0 : 1;
+  dtp->u.p.sf_read_comma =
+    dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA ? 0 : 1;
 }
 
 
@@ -468,9 +467,8 @@ read_a_char4 (st_parameter_dt *dtp, const fnode *f, char *p, int length)
   else
     read_default_char4 (dtp, p, length, w);
   
-  dtp->u.p.sf_read_comma = 1;
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    dtp->u.p.sf_read_comma = dtp->u.p.decimal_status == DECIMAL_COMMA ? 0 : 1;
+  dtp->u.p.sf_read_comma =
+    dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA ? 0 : 1;
 }
 
 /* eat_leading_spaces()-- Given a character pointer and a width,
@@ -842,9 +840,9 @@ read_f (st_parameter_dt *dtp, const fnode *f, char *dest, int length)
       switch (*p)
 	{
 	case ',':
-	  if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	      && (dtp->u.p.decimal_status == DECIMAL_COMMA && *p == ','))
-		*p = '.';
+	  if (dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA
+               && *p == ',')
+	    *p = '.';
 	  else
 	    goto bad_float;
 	  /* Fall through */
@@ -1079,17 +1077,9 @@ read_f (st_parameter_dt *dtp, const fnode *f, char *dest, int length)
 void
 read_x (st_parameter_dt * dtp, int n)
 {
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    {
-      if ((dtp->u.p.pad_status == PAD_NO || is_internal_unit (dtp))
-	  && dtp->u.p.current_unit->bytes_left < n)
-	n = dtp->u.p.current_unit->bytes_left;
-    }
-  else
-    {
-      if (is_internal_unit (dtp) && dtp->u.p.current_unit->bytes_left < n)
-	n = dtp->u.p.current_unit->bytes_left;
-    }
+  if ((dtp->u.p.current_unit->pad_status == PAD_NO || is_internal_unit (dtp))
+       && dtp->u.p.current_unit->bytes_left < n)
+    n = dtp->u.p.current_unit->bytes_left;
 
   dtp->u.p.sf_read_comma = 0;
   if (n > 0)
diff --git a/libgfortran/io/transfer.c b/libgfortran/io/transfer.c
index e707fbc..cf93a28 100644
--- a/libgfortran/io/transfer.c
+++ b/libgfortran/io/transfer.c
@@ -264,8 +264,7 @@ read_sf (st_parameter_dt *dtp, int *length, int no_error)
 	  /* Without padding, terminate the I/O statement without assigning
 	     the value.  With padding, the value still needs to be assigned,
 	     so we can just continue with a short read.  */
-	  if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	      && dtp->u.p.pad_status == PAD_NO)
+	  if (dtp->u.p.current_unit->pad_status == PAD_NO)
 	    {
 	      if (no_error)
 		break;
@@ -333,8 +332,7 @@ read_block_form (st_parameter_dt *dtp, void *buf, size_t *nbytes)
             dtp->u.p.current_unit->bytes_left = dtp->u.p.current_unit->recl;
 	  else
 	    {
-	      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-		  && dtp->u.p.pad_status == PAD_NO)
+	      if (dtp->u.p.current_unit->pad_status == PAD_NO)
 		{
 		  /* Not enough data left.  */
 		  generate_error (&dtp->common, LIBERROR_EOR, NULL);
@@ -381,8 +379,7 @@ read_block_form (st_parameter_dt *dtp, void *buf, size_t *nbytes)
 
   if (nread != *nbytes)
     {				/* Short read, this shouldn't happen.  */
-      if ((dtp->common.flags & IOPARM_DT_HAS_F2003)
-	  && dtp->u.p.pad_status == PAD_YES)
+      if (dtp->u.p.current_unit->pad_status == PAD_YES)
 	*nbytes = nread;
       else
 	{
@@ -953,10 +950,8 @@ formatted_transfer_scalar (st_parameter_dt *dtp, bt type, void *p, int kind,
   /* Set this flag so that commas in reads cause the read to complete before
      the entire field has been read.  The next read field will start right after
      the comma in the stream.  (Set to 0 for character reads).  */
-  dtp->u.p.sf_read_comma = 1;
-
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    dtp->u.p.sf_read_comma = dtp->u.p.decimal_status == DECIMAL_COMMA ? 0 : 1;
+  dtp->u.p.sf_read_comma =
+    dtp->u.p.current_unit->decimal_status == DECIMAL_COMMA ? 0 : 1;
 
   dtp->u.p.line_buffer = scratch;
 
@@ -1375,12 +1370,12 @@ formatted_transfer_scalar (st_parameter_dt *dtp, bt type, void *p, int kind,
 
 	case FMT_DC:
 	  consume_data_flag = 0;
-	  dtp->u.p.decimal_status = DECIMAL_COMMA;
+	  dtp->u.p.current_unit->decimal_status = DECIMAL_COMMA;
 	  break;
 
 	case FMT_DP:
 	  consume_data_flag = 0;
-	  dtp->u.p.decimal_status = DECIMAL_POINT;
+	  dtp->u.p.current_unit->decimal_status = DECIMAL_POINT;
 	  break;
 
 	case FMT_P:
@@ -2073,57 +2068,52 @@ data_transfer_init (st_parameter_dt *dtp, int read_flag)
   if (dtp->u.p.advance_status == ADVANCE_UNSPECIFIED)
     dtp->u.p.advance_status = ADVANCE_YES;
 
-  /* To maintain ABI check these only if we have the F2003 flag set.  */
-  if(cf & IOPARM_DT_HAS_F2003)
-    {
-      /* Check the decimal mode.  */
-      dtp->u.p.decimal_status
+  /* Check the decimal mode.  */
+  dtp->u.p.current_unit->decimal_status
 	= !(cf & IOPARM_DT_HAS_DECIMAL) ? DECIMAL_UNSPECIFIED :
 	  find_option (&dtp->common, dtp->u.p.decimal, dtp->u.p.decimal_len,
 			decimal_opt, "Bad DECIMAL parameter in data transfer "
 			"statement");
 
-      if (dtp->u.p.decimal_status == DECIMAL_UNSPECIFIED)
-	dtp->u.p.decimal_status = dtp->u.p.current_unit->flags.decimal;
+  if (dtp->u.p.current_unit->decimal_status == DECIMAL_UNSPECIFIED)
+	dtp->u.p.current_unit->decimal_status = dtp->u.p.current_unit->flags.decimal;
 
-      /* Check the sign mode. */
-      dtp->u.p.sign_status
+  /* Check the sign mode. */
+  dtp->u.p.sign_status
 	= !(cf & IOPARM_DT_HAS_SIGN) ? SIGN_UNSPECIFIED :
 	  find_option (&dtp->common, dtp->u.p.sign, dtp->u.p.sign_len, sign_opt,
 			"Bad SIGN parameter in data transfer statement");
   
-      if (dtp->u.p.sign_status == SIGN_UNSPECIFIED)
+  if (dtp->u.p.sign_status == SIGN_UNSPECIFIED)
 	dtp->u.p.sign_status = dtp->u.p.current_unit->flags.sign;
 
-      /* Check the blank mode.  */
-      dtp->u.p.blank_status
+  /* Check the blank mode.  */
+  dtp->u.p.blank_status
 	= !(cf & IOPARM_DT_HAS_BLANK) ? BLANK_UNSPECIFIED :
 	  find_option (&dtp->common, dtp->u.p.blank, dtp->u.p.blank_len,
 			blank_opt,
 			"Bad BLANK parameter in data transfer statement");
   
-      if (dtp->u.p.blank_status == BLANK_UNSPECIFIED)
+  if (dtp->u.p.blank_status == BLANK_UNSPECIFIED)
 	dtp->u.p.blank_status = dtp->u.p.current_unit->flags.blank;
   
-      /* Check the delim mode.  */
-      dtp->u.p.delim_status
+  /* Check the delim mode.  */
+  dtp->u.p.current_unit->delim_status
 	= !(cf & IOPARM_DT_HAS_DELIM) ? DELIM_UNSPECIFIED :
 	  find_option (&dtp->common, dtp->u.p.delim, dtp->u.p.delim_len,
-			delim_opt,
-			"Bad DELIM parameter in data transfer statement");
+	  delim_opt, "Bad DELIM parameter in data transfer statement");
   
-      if (dtp->u.p.delim_status == DELIM_UNSPECIFIED)
-	dtp->u.p.delim_status = dtp->u.p.current_unit->flags.delim;
+  if (dtp->u.p.current_unit->delim_status == DELIM_UNSPECIFIED)
+    dtp->u.p.current_unit->delim_status = dtp->u.p.current_unit->flags.delim;
 
-      /* Check the pad mode.  */
-      dtp->u.p.pad_status
+  /* Check the pad mode.  */
+  dtp->u.p.current_unit->pad_status
 	= !(cf & IOPARM_DT_HAS_PAD) ? PAD_UNSPECIFIED :
 	  find_option (&dtp->common, dtp->u.p.pad, dtp->u.p.pad_len, pad_opt,
 			"Bad PAD parameter in data transfer statement");
   
-      if (dtp->u.p.pad_status == PAD_UNSPECIFIED)
-	dtp->u.p.pad_status = dtp->u.p.current_unit->flags.pad;
-    }
+  if (dtp->u.p.current_unit->pad_status == PAD_UNSPECIFIED)
+	dtp->u.p.current_unit->pad_status = dtp->u.p.current_unit->flags.pad;
 
   /* Sanity checks on the record number.  */
   if ((cf & IOPARM_DT_HAS_REC) != 0)
diff --git a/libgfortran/io/write.c b/libgfortran/io/write.c
index 121a9b1..020f473 100644
--- a/libgfortran/io/write.c
+++ b/libgfortran/io/write.c
@@ -65,9 +65,7 @@ write_default_char4 (st_parameter_dt *dtp, gfc_char4_t *source,
     }
 
   /* Get ready to handle delimiters if needed.  */
-  d = ' ';
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-  switch (dtp->u.p.delim_status)
+  switch (dtp->u.p.current_unit->delim_status)
     {
     case DELIM_APOSTROPHE:
       d = '\'';
@@ -129,9 +127,7 @@ write_utf8_char4 (st_parameter_dt *dtp, gfc_char4_t *source,
     }
 
   /* Get ready to handle delimiters if needed.  */
-  d = ' ';
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-  switch (dtp->u.p.delim_status)
+  switch (dtp->u.p.current_unit->delim_status)
     {
     case DELIM_APOSTROPHE:
       d = '\'';
@@ -882,9 +878,7 @@ write_character (st_parameter_dt *dtp, const char *source, int kind, int length)
   int i, extra;
   char *p, d;
 
-  d = ' ';
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-  switch (dtp->u.p.delim_status)
+  switch (dtp->u.p.current_unit->delim_status)
     {
     case DELIM_APOSTROPHE:
       d = '\'';
@@ -1022,10 +1016,8 @@ write_real_g0 (st_parameter_dt *dtp, const char *source, int length, int d)
 static void
 write_complex (st_parameter_dt *dtp, const char *source, int kind, size_t size)
 {
-  char semi_comma = ',';
-
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    semi_comma = dtp->u.p.decimal_status == DECIMAL_POINT ? ',' : ';';
+  char semi_comma =
+	dtp->u.p.current_unit->decimal_status == DECIMAL_POINT ? ',' : ';';
 
   if (write_char (dtp, '('))
     return;
@@ -1072,17 +1064,9 @@ list_formatted_write_scalar (st_parameter_dt *dtp, bt type, void *p, int kind,
     }
   else
     {
-      if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-	{
-	  if (type != BT_CHARACTER || !dtp->u.p.char_flag ||
-	      dtp->u.p.delim_status != DELIM_NONE)
-	    write_separator (dtp);
-	}
-      else
-	{
-          if (type != BT_CHARACTER || !dtp->u.p.char_flag)
-	    write_separator (dtp);
-	}
+      if (type != BT_CHARACTER || !dtp->u.p.char_flag ||
+	dtp->u.p.current_unit->delim_status != DELIM_NONE)
+      write_separator (dtp);
     }
 
   switch (type)
@@ -1197,10 +1181,8 @@ nml_write_obj (st_parameter_dt *dtp, namelist_info * obj, index_type offset,
   /* Set the character to be used to separate values
      to a comma or semi-colon.  */
 
-  char semi_comma = ',';
-
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    semi_comma = dtp->u.p.decimal_status == DECIMAL_POINT ? ',' : ';';
+  char semi_comma =
+	dtp->u.p.current_unit->decimal_status == DECIMAL_POINT ? ',' : ';';
 
   /* Write namelist variable names in upper case. If a derived type,
      nothing is output.  If a component, base and base_name are set.  */
@@ -1315,25 +1297,20 @@ nml_write_obj (st_parameter_dt *dtp, namelist_info * obj, index_type offset,
               break;
 
 	    case GFC_DTYPE_CHARACTER:
-	      if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-		{
-		  tmp_delim = dtp->u.p.delim_status;
-		  if (dtp->u.p.nml_delim == '"')
-		    dtp->u.p.delim_status = DELIM_QUOTE;
-		  if (dtp->u.p.nml_delim == '\'')
-		    dtp->u.p.delim_status = DELIM_APOSTROPHE;
-		  write_character (dtp, p, 1, obj->string_length);
-		  dtp->u.p.delim_status = tmp_delim;
-		}
-	      else
-		write_character (dtp, p, 1, obj->string_length);
+	      tmp_delim = dtp->u.p.current_unit->delim_status;
+	      if (dtp->u.p.nml_delim == '"')
+		dtp->u.p.current_unit->delim_status = DELIM_QUOTE;
+	      if (dtp->u.p.nml_delim == '\'')
+		dtp->u.p.current_unit->delim_status = DELIM_APOSTROPHE;
+	      write_character (dtp, p, 1, obj->string_length);
+		dtp->u.p.current_unit->delim_status = tmp_delim;
               break;
 
 	    case GFC_DTYPE_REAL:
 	      write_real (dtp, p, len);
               break;
 
-	    case GFC_DTYPE_COMPLEX:
+	   case GFC_DTYPE_COMPLEX:
 	      dtp->u.p.no_leading_blank = 0;
 	      num++;
               write_complex (dtp, p, len, obj_size);
@@ -1464,9 +1441,7 @@ namelist_write (st_parameter_dt *dtp)
   unit_delim tmp_delim = DELIM_UNSPECIFIED;
 
   /* Set the delimiter for namelist output.  */
-if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-  {
-  tmp_delim = dtp->u.p.delim_status;
+  tmp_delim = dtp->u.p.current_unit->delim_status;
   switch (tmp_delim)
     {
     case (DELIM_QUOTE):
@@ -1483,8 +1458,8 @@ if (dtp->common.flags & IOPARM_DT_HAS_F2003)
     }
 
   /* Temporarily disable namelist delimters.  */
-  dtp->u.p.delim_status = DELIM_NONE;
-  }
+  dtp->u.p.current_unit->delim_status = DELIM_NONE;
+
   write_character (dtp, "&", 1, 1);
 
   /* Write namelist name in upper case - f95 std.  */
@@ -1507,8 +1482,7 @@ if (dtp->common.flags & IOPARM_DT_HAS_F2003)
   write_character (dtp, "  /", 1, 3);
   namelist_write_newline (dtp);
   /* Restore the original delimiter.  */
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    dtp->u.p.delim_status = tmp_delim;
+  dtp->u.p.current_unit->delim_status = tmp_delim;
 }
 
 #undef NML_DIGITS
diff --git a/libgfortran/io/write_float.def b/libgfortran/io/write_float.def
index d51c8ed..0ee8f35 100644
--- a/libgfortran/io/write_float.def
+++ b/libgfortran/io/write_float.def
@@ -404,10 +404,7 @@ output_float (st_parameter_dt *dtp, const fnode *f, char *buffer, size_t size,
       out += nbefore;
     }
   /* Output the decimal point.  */
-  if (dtp->common.flags & IOPARM_DT_HAS_F2003)
-    *(out++) = dtp->u.p.decimal_status == DECIMAL_POINT ? '.' : ',';
-  else
-    *(out++) = '.';
+  *(out++) = dtp->u.p.current_unit->decimal_status == DECIMAL_POINT ? '.' : ',';
 
   /* Output leading zeros after the decimal point.  */
   if (nzero > 0)