-/* Copyright (C) 2002-2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of the GNU Fortran 95 runtime library (libgfortran).
the Free Software Foundation; either version 2, or (at your option)
any later version.
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file. (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
You should have received a copy of the GNU General Public License
along with Libgfortran; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
/* Implement the non-IOLENGTH variant of the INQUIRY statement */
#include "io.h"
-static char undefined[] = "UNDEFINED";
+static const char undefined[] = "UNDEFINED";
/* inquire_via_unit()-- Inquiry via unit number. The unit might not exist. */
static void
-inquire_via_unit (gfc_unit * u)
+inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
{
const char *p;
+ GFC_INTEGER_4 cf = iqp->common.flags;
- if (ioparm.exist != NULL)
- *ioparm.exist = (u != NULL);
+ if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
+ *iqp->exist = iqp->common.unit >= 0;
- if (ioparm.opened != NULL)
- *ioparm.opened = (u != NULL);
+ if ((cf & IOPARM_INQUIRE_HAS_OPENED) != 0)
+ *iqp->opened = (u != NULL);
- if (ioparm.number != NULL)
- *ioparm.number = (u != NULL) ? u->unit_number : -1;
+ if ((cf & IOPARM_INQUIRE_HAS_NUMBER) != 0)
+ *iqp->number = (u != NULL) ? u->unit_number : -1;
- if (ioparm.named != NULL)
- *ioparm.named = (u != NULL && u->flags.status != STATUS_SCRATCH);
+ if ((cf & IOPARM_INQUIRE_HAS_NAMED) != 0)
+ *iqp->named = (u != NULL && u->flags.status != STATUS_SCRATCH);
- if (ioparm.name != NULL && u != NULL && u->flags.status != STATUS_SCRATCH)
- fstrcpy (ioparm.name, ioparm.name_len, u->file, u->file_len);
+ if ((cf & IOPARM_INQUIRE_HAS_NAME) != 0
+ && u != NULL && u->flags.status != STATUS_SCRATCH)
+ fstrcpy (iqp->name, iqp->name_len, u->file, u->file_len);
- if (ioparm.access != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
{
if (u == NULL)
p = undefined;
case ACCESS_DIRECT:
p = "DIRECT";
break;
+ case ACCESS_STREAM:
+ p = "STREAM";
+ break;
default:
- internal_error ("inquire_via_unit(): Bad access");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad access");
}
- cf_strcpy (ioparm.access, ioparm.access_len, p);
+ cf_strcpy (iqp->access, iqp->access_len, p);
}
- if (ioparm.sequential != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_SEQUENTIAL) != 0)
{
- /* disallow an open direct access file to be accessed
- sequentially */
- if (u->flags.access==ACCESS_DIRECT)
- p = "NO";
- else
- p = (u == NULL) ? inquire_sequential (NULL, 0) :
- inquire_sequential (u->file, u->file_len);
-
- cf_strcpy (ioparm.sequential, ioparm.sequential_len, p);
+ if (u == NULL)
+ p = inquire_sequential (NULL, 0);
+ else
+ {
+ /* disallow an open direct access file to be accessed sequentially */
+ if (u->flags.access == ACCESS_DIRECT)
+ p = "NO";
+ else
+ p = inquire_sequential (u->file, u->file_len);
+ }
+
+ cf_strcpy (iqp->sequential, iqp->sequential_len, p);
}
- if (ioparm.direct != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
{
p = (u == NULL) ? inquire_direct (NULL, 0) :
inquire_direct (u->file, u->file_len);
- cf_strcpy (ioparm.direct, ioparm.direct_len, p);
+ cf_strcpy (iqp->direct, iqp->direct_len, p);
}
- if (ioparm.form != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_FORM) != 0)
{
if (u == NULL)
p = undefined;
p = "UNFORMATTED";
break;
default:
- internal_error ("inquire_via_unit(): Bad form");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad form");
}
- cf_strcpy (ioparm.form, ioparm.form_len, p);
+ cf_strcpy (iqp->form, iqp->form_len, p);
}
- if (ioparm.formatted != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
{
p = (u == NULL) ? inquire_formatted (NULL, 0) :
inquire_formatted (u->file, u->file_len);
- cf_strcpy (ioparm.formatted, ioparm.formatted_len, p);
+ cf_strcpy (iqp->formatted, iqp->formatted_len, p);
}
- if (ioparm.unformatted != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
{
p = (u == NULL) ? inquire_unformatted (NULL, 0) :
inquire_unformatted (u->file, u->file_len);
- cf_strcpy (ioparm.unformatted, ioparm.unformatted_len, p);
+ cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
}
- if (ioparm.recl_out != NULL)
- *ioparm.recl_out = (u != NULL) ? u->recl : 0;
+ if ((cf & IOPARM_INQUIRE_HAS_RECL_OUT) != 0)
+ *iqp->recl_out = (u != NULL) ? u->recl : 0;
+
+ if ((cf & IOPARM_INQUIRE_HAS_STRM_POS_OUT) != 0)
+ *iqp->strm_pos_out = (u != NULL) ? u->last_record : 0;
- if (ioparm.nextrec != NULL)
- *ioparm.nextrec = (u != NULL) ? u->last_record + 1 : 0;
+ if ((cf & IOPARM_INQUIRE_HAS_NEXTREC) != 0)
+ *iqp->nextrec = (u != NULL) ? u->last_record + 1 : 0;
- if (ioparm.blank != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
{
if (u == NULL)
p = undefined;
switch (u->flags.blank)
{
case BLANK_NULL:
- p = "NULL";
+ p = "NULL";
break;
case BLANK_ZERO:
p = "ZERO";
break;
default:
- internal_error ("inquire_via_unit(): Bad blank");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad blank");
}
- cf_strcpy (ioparm.blank, ioparm.blank_len, p);
+ cf_strcpy (iqp->blank, iqp->blank_len, p);
}
- if (ioparm.position != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
{
if (u == NULL || u->flags.access == ACCESS_DIRECT)
- p = undefined;
+ p = undefined;
else
- {
- p = NULL; /* TODO: Try to decode what the standard says... */
- }
-
- cf_strcpy (ioparm.blank, ioparm.blank_len, p);
+ switch (u->flags.position)
+ {
+ case POSITION_REWIND:
+ p = "REWIND";
+ break;
+ case POSITION_APPEND:
+ p = "APPEND";
+ break;
+ case POSITION_ASIS:
+ p = "ASIS";
+ break;
+ default:
+ /* if not direct access, it must be
+ either REWIND, APPEND, or ASIS.
+ ASIS seems to be the best default */
+ p = "ASIS";
+ break;
+ }
+ cf_strcpy (iqp->position, iqp->position_len, p);
}
- if (ioparm.action != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_ACTION) != 0)
{
if (u == NULL)
p = undefined;
p = "READWRITE";
break;
default:
- internal_error ("inquire_via_unit(): Bad action");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad action");
}
- cf_strcpy (ioparm.action, ioparm.action_len, p);
+ cf_strcpy (iqp->action, iqp->action_len, p);
}
- if (ioparm.read != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_READ) != 0)
{
p = (u == NULL) ? inquire_read (NULL, 0) :
inquire_read (u->file, u->file_len);
- cf_strcpy (ioparm.read, ioparm.read_len, p);
+ cf_strcpy (iqp->read, iqp->read_len, p);
}
- if (ioparm.write != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_WRITE) != 0)
{
p = (u == NULL) ? inquire_write (NULL, 0) :
inquire_write (u->file, u->file_len);
- cf_strcpy (ioparm.write, ioparm.write_len, p);
+ cf_strcpy (iqp->write, iqp->write_len, p);
}
- if (ioparm.readwrite != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_READWRITE) != 0)
{
p = (u == NULL) ? inquire_readwrite (NULL, 0) :
inquire_readwrite (u->file, u->file_len);
- cf_strcpy (ioparm.readwrite, ioparm.readwrite_len, p);
+ cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
}
- if (ioparm.delim != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_DELIM) != 0)
{
if (u == NULL || u->flags.form != FORM_FORMATTED)
p = undefined;
p = "APOSTROPHE";
break;
default:
- internal_error ("inquire_via_unit(): Bad delim");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad delim");
}
- cf_strcpy (ioparm.access, ioparm.access_len, p);
+ cf_strcpy (iqp->delim, iqp->delim_len, p);
}
- if (ioparm.pad != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
{
if (u == NULL || u->flags.form != FORM_FORMATTED)
p = undefined;
p = "YES";
break;
default:
- internal_error ("inquire_via_unit(): Bad pad");
+ internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
}
- cf_strcpy (ioparm.pad, ioparm.pad_len, p);
+ cf_strcpy (iqp->pad, iqp->pad_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_CONVERT) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.convert)
+ {
+ /* l8_to_l4_offset is 0 for little-endian, 1 for big-endian. */
+ case CONVERT_NATIVE:
+ p = l8_to_l4_offset ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
+ break;
+
+ case CONVERT_SWAP:
+ p = l8_to_l4_offset ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
+ break;
+
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad convert");
+ }
+
+ cf_strcpy (iqp->convert, iqp->convert_len, p);
}
}
* only used if the filename is *not* connected to a unit number. */
static void
-inquire_via_filename (void)
+inquire_via_filename (st_parameter_inquire *iqp)
{
const char *p;
+ GFC_INTEGER_4 cf = iqp->common.flags;
- if (ioparm.exist != NULL)
- *ioparm.exist = file_exists ();
+ if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
+ *iqp->exist = file_exists (iqp->file, iqp->file_len);
- if (ioparm.opened != NULL)
- *ioparm.opened = 0;
+ if ((cf & IOPARM_INQUIRE_HAS_OPENED) != 0)
+ *iqp->opened = 0;
- if (ioparm.number != NULL)
- *ioparm.number = -1;
+ if ((cf & IOPARM_INQUIRE_HAS_NUMBER) != 0)
+ *iqp->number = -1;
- if (ioparm.named != NULL)
- *ioparm.named = 1;
+ if ((cf & IOPARM_INQUIRE_HAS_NAMED) != 0)
+ *iqp->named = 1;
- if (ioparm.name != NULL)
- fstrcpy (ioparm.name, ioparm.name_len, ioparm.file, ioparm.file_len);
+ if ((cf & IOPARM_INQUIRE_HAS_NAME) != 0)
+ fstrcpy (iqp->name, iqp->name_len, iqp->file, iqp->file_len);
- if (ioparm.access != NULL)
- cf_strcpy (ioparm.access, ioparm.access_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
+ cf_strcpy (iqp->access, iqp->access_len, undefined);
- if (ioparm.sequential != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_SEQUENTIAL) != 0)
{
- p = inquire_sequential (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.sequential, ioparm.sequential_len, p);
+ p = inquire_sequential (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->sequential, iqp->sequential_len, p);
}
- if (ioparm.direct != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
{
- p = inquire_direct (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.direct, ioparm.direct_len, p);
+ p = inquire_direct (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->direct, iqp->direct_len, p);
}
- if (ioparm.form != NULL)
- cf_strcpy (ioparm.form, ioparm.form_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_FORM) != 0)
+ cf_strcpy (iqp->form, iqp->form_len, undefined);
- if (ioparm.formatted != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
{
- p = inquire_formatted (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.formatted, ioparm.formatted_len, p);
+ p = inquire_formatted (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->formatted, iqp->formatted_len, p);
}
- if (ioparm.unformatted != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
{
- p = inquire_unformatted (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.unformatted, ioparm.unformatted_len, p);
+ p = inquire_unformatted (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
}
- if (ioparm.recl_out != NULL)
- *ioparm.recl_out = 0;
+ if ((cf & IOPARM_INQUIRE_HAS_RECL_OUT) != 0)
+ *iqp->recl_out = 0;
- if (ioparm.nextrec != NULL)
- *ioparm.nextrec = 0;
+ if ((cf & IOPARM_INQUIRE_HAS_NEXTREC) != 0)
+ *iqp->nextrec = 0;
- if (ioparm.blank != NULL)
- cf_strcpy (ioparm.blank, ioparm.blank_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
+ cf_strcpy (iqp->blank, iqp->blank_len, undefined);
- if (ioparm.position != NULL)
- cf_strcpy (ioparm.position, ioparm.position_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_POSITION) != 0)
+ cf_strcpy (iqp->position, iqp->position_len, undefined);
- if (ioparm.access != NULL)
- cf_strcpy (ioparm.access, ioparm.access_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
+ cf_strcpy (iqp->access, iqp->access_len, undefined);
- if (ioparm.read != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_READ) != 0)
{
- p = inquire_read (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.read, ioparm.read_len, p);
+ p = inquire_read (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->read, iqp->read_len, p);
}
- if (ioparm.write != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_WRITE) != 0)
{
- p = inquire_write (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.write, ioparm.write_len, p);
+ p = inquire_write (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->write, iqp->write_len, p);
}
- if (ioparm.readwrite != NULL)
+ if ((cf & IOPARM_INQUIRE_HAS_READWRITE) != 0)
{
- p = inquire_read (ioparm.file, ioparm.file_len);
- cf_strcpy (ioparm.readwrite, ioparm.readwrite_len, p);
+ p = inquire_read (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
}
- if (ioparm.delim != NULL)
- cf_strcpy (ioparm.delim, ioparm.delim_len, undefined);
-
- if (ioparm.pad != NULL)
- cf_strcpy (ioparm.pad, ioparm.pad_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_DELIM) != 0)
+ cf_strcpy (iqp->delim, iqp->delim_len, undefined);
+ if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+ cf_strcpy (iqp->pad, iqp->pad_len, undefined);
}
/* Library entry point for the INQUIRE statement (non-IOLENGTH
form). */
+extern void st_inquire (st_parameter_inquire *);
+export_proto(st_inquire);
+
void
-st_inquire (void)
+st_inquire (st_parameter_inquire *iqp)
{
gfc_unit *u;
- library_start ();
+ library_start (&iqp->common);
- if (ioparm.file == NULL)
- inquire_via_unit (find_unit (ioparm.unit));
+ if ((iqp->common.flags & IOPARM_INQUIRE_HAS_FILE) == 0)
+ {
+ u = find_unit (iqp->common.unit);
+ inquire_via_unit (iqp, u);
+ }
else
{
- u = find_file ();
+ u = find_file (iqp->file, iqp->file_len);
if (u == NULL)
- inquire_via_filename ();
+ inquire_via_filename (iqp);
else
- inquire_via_unit (u);
+ inquire_via_unit (iqp, u);
}
+ if (u != NULL)
+ unlock_unit (u);
library_end ();
}
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