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authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.4.0/libgfortran/io/inquire.c
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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Check in gcc sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'gcc-4.4.0/libgfortran/io/inquire.c')
-rw-r--r--gcc-4.4.0/libgfortran/io/inquire.c661
1 files changed, 661 insertions, 0 deletions
diff --git a/gcc-4.4.0/libgfortran/io/inquire.c b/gcc-4.4.0/libgfortran/io/inquire.c
new file mode 100644
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+++ b/gcc-4.4.0/libgfortran/io/inquire.c
@@ -0,0 +1,661 @@
+/* Copyright (C) 2002, 2003, 2005, 2007, 2009 Free Software Foundation, Inc.
+ Contributed by Andy Vaught
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+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
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+
+/* Implement the non-IOLENGTH variant of the INQUIRY statement */
+
+#include "io.h"
+
+
+static const char undefined[] = "UNDEFINED";
+
+
+/* inquire_via_unit()-- Inquiry via unit number. The unit might not exist. */
+
+static void
+inquire_via_unit (st_parameter_inquire *iqp, gfc_unit * u)
+{
+ const char *p;
+ GFC_INTEGER_4 cf = iqp->common.flags;
+
+ if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
+ {
+ *iqp->exist = (iqp->common.unit >= 0
+ && iqp->common.unit <= GFC_INTEGER_4_HUGE);
+
+ if ((cf & IOPARM_INQUIRE_HAS_FILE) == 0)
+ {
+ if (!(*iqp->exist))
+ *iqp->common.iostat = LIBERROR_BAD_UNIT;
+ *iqp->exist = *iqp->exist
+ && (*iqp->common.iostat != LIBERROR_BAD_UNIT);
+ }
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_OPENED) != 0)
+ *iqp->opened = (u != NULL);
+
+ if ((cf & IOPARM_INQUIRE_HAS_NUMBER) != 0)
+ *iqp->number = (u != NULL) ? u->unit_number : -1;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NAMED) != 0)
+ *iqp->named = (u != NULL && u->flags.status != STATUS_SCRATCH);
+
+ 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 ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.access)
+ {
+ case ACCESS_SEQUENTIAL:
+ p = "SEQUENTIAL";
+ break;
+ case ACCESS_DIRECT:
+ p = "DIRECT";
+ break;
+ case ACCESS_STREAM:
+ p = "STREAM";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad access");
+ }
+
+ cf_strcpy (iqp->access, iqp->access_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_SEQUENTIAL) != 0)
+ {
+ if (u == NULL)
+ p = inquire_sequential (NULL, 0);
+ else
+ switch (u->flags.access)
+ {
+ case ACCESS_DIRECT:
+ case ACCESS_STREAM:
+ p = "NO";
+ break;
+ case ACCESS_SEQUENTIAL:
+ p = "YES";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad access");
+ }
+
+ cf_strcpy (iqp->sequential, iqp->sequential_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
+ {
+ if (u == NULL)
+ p = inquire_direct (NULL, 0);
+ else
+ switch (u->flags.access)
+ {
+ case ACCESS_SEQUENTIAL:
+ case ACCESS_STREAM:
+ p = "NO";
+ break;
+ case ACCESS_DIRECT:
+ p = "YES";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad access");
+ }
+
+ cf_strcpy (iqp->direct, iqp->direct_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_FORM) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.form)
+ {
+ case FORM_FORMATTED:
+ p = "FORMATTED";
+ break;
+ case FORM_UNFORMATTED:
+ p = "UNFORMATTED";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad form");
+ }
+
+ cf_strcpy (iqp->form, iqp->form_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
+ {
+ if (u == NULL)
+ p = inquire_formatted (NULL, 0);
+ else
+ switch (u->flags.form)
+ {
+ case FORM_FORMATTED:
+ p = "YES";
+ break;
+ case FORM_UNFORMATTED:
+ p = "NO";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad form");
+ }
+
+ cf_strcpy (iqp->formatted, iqp->formatted_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
+ {
+ if (u == NULL)
+ p = inquire_unformatted (NULL, 0);
+ else
+ switch (u->flags.form)
+ {
+ case FORM_FORMATTED:
+ p = "NO";
+ break;
+ case FORM_UNFORMATTED:
+ p = "YES";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad form");
+ }
+
+ cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
+ }
+
+ 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->strm_pos : 0;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NEXTREC) != 0)
+ {
+ /* This only makes sense in the context of DIRECT access. */
+ if (u != NULL && u->flags.access == ACCESS_DIRECT)
+ *iqp->nextrec = u->last_record + 1;
+ else
+ *iqp->nextrec = 0;
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.blank)
+ {
+ case BLANK_NULL:
+ p = "NULL";
+ break;
+ case BLANK_ZERO:
+ p = "ZERO";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad blank");
+ }
+
+ cf_strcpy (iqp->blank, iqp->blank_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.pad)
+ {
+ case PAD_YES:
+ p = "YES";
+ break;
+ case PAD_NO:
+ p = "NO";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
+ }
+
+ cf_strcpy (iqp->pad, iqp->pad_len, p);
+ }
+
+ if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
+ {
+ GFC_INTEGER_4 cf2 = iqp->flags2;
+
+ 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 (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");
+ }
+
+ cf_strcpy (iqp->asynchronous, iqp->asynchronous_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");
+ }
+
+ cf_strcpy (iqp->sign, iqp->sign_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)
+ {
+ if (u == NULL || u->flags.access == ACCESS_DIRECT)
+ p = undefined;
+ else
+ 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 ((cf & IOPARM_INQUIRE_HAS_ACTION) != 0)
+ {
+ if (u == NULL)
+ p = undefined;
+ else
+ switch (u->flags.action)
+ {
+ case ACTION_READ:
+ p = "READ";
+ break;
+ case ACTION_WRITE:
+ p = "WRITE";
+ break;
+ case ACTION_READWRITE:
+ p = "READWRITE";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad action");
+ }
+
+ cf_strcpy (iqp->action, iqp->action_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_READ) != 0)
+ {
+ p = (u == NULL) ? inquire_read (NULL, 0) :
+ inquire_read (u->file, u->file_len);
+
+ cf_strcpy (iqp->read, iqp->read_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_WRITE) != 0)
+ {
+ p = (u == NULL) ? inquire_write (NULL, 0) :
+ inquire_write (u->file, u->file_len);
+
+ cf_strcpy (iqp->write, iqp->write_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_READWRITE) != 0)
+ {
+ p = (u == NULL) ? inquire_readwrite (NULL, 0) :
+ inquire_readwrite (u->file, u->file_len);
+
+ cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_DELIM) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.delim)
+ {
+ case DELIM_NONE:
+ p = "NONE";
+ break;
+ case DELIM_QUOTE:
+ p = "QUOTE";
+ break;
+ case DELIM_APOSTROPHE:
+ p = "APOSTROPHE";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad delim");
+ }
+
+ cf_strcpy (iqp->delim, iqp->delim_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+ {
+ if (u == NULL || u->flags.form != FORM_FORMATTED)
+ p = undefined;
+ else
+ switch (u->flags.pad)
+ {
+ case PAD_NO:
+ p = "NO";
+ break;
+ case PAD_YES:
+ p = "YES";
+ break;
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad pad");
+ }
+
+ 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)
+ {
+ /* big_endian is 0 for little-endian, 1 for big-endian. */
+ case GFC_CONVERT_NATIVE:
+ p = big_endian ? "BIG_ENDIAN" : "LITTLE_ENDIAN";
+ break;
+
+ case GFC_CONVERT_SWAP:
+ p = big_endian ? "LITTLE_ENDIAN" : "BIG_ENDIAN";
+ break;
+
+ default:
+ internal_error (&iqp->common, "inquire_via_unit(): Bad convert");
+ }
+
+ cf_strcpy (iqp->convert, iqp->convert_len, p);
+ }
+}
+
+
+/* inquire_via_filename()-- Inquiry via filename. This subroutine is
+ * only used if the filename is *not* connected to a unit number. */
+
+static void
+inquire_via_filename (st_parameter_inquire *iqp)
+{
+ const char *p;
+ GFC_INTEGER_4 cf = iqp->common.flags;
+
+ if ((cf & IOPARM_INQUIRE_HAS_EXIST) != 0)
+ *iqp->exist = file_exists (iqp->file, iqp->file_len);
+
+ if ((cf & IOPARM_INQUIRE_HAS_OPENED) != 0)
+ *iqp->opened = 0;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NUMBER) != 0)
+ *iqp->number = -1;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NAMED) != 0)
+ *iqp->named = 1;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NAME) != 0)
+ fstrcpy (iqp->name, iqp->name_len, iqp->file, iqp->file_len);
+
+ if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
+ cf_strcpy (iqp->access, iqp->access_len, undefined);
+
+ if ((cf & IOPARM_INQUIRE_HAS_SEQUENTIAL) != 0)
+ {
+ p = "UNKNOWN";
+ cf_strcpy (iqp->sequential, iqp->sequential_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_DIRECT) != 0)
+ {
+ p = "UNKNOWN";
+ cf_strcpy (iqp->direct, iqp->direct_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_FORM) != 0)
+ cf_strcpy (iqp->form, iqp->form_len, undefined);
+
+ if ((cf & IOPARM_INQUIRE_HAS_FORMATTED) != 0)
+ {
+ p = "UNKNOWN";
+ cf_strcpy (iqp->formatted, iqp->formatted_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_UNFORMATTED) != 0)
+ {
+ p = "UNKNOWN";
+ cf_strcpy (iqp->unformatted, iqp->unformatted_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_RECL_OUT) != 0)
+ *iqp->recl_out = 0;
+
+ if ((cf & IOPARM_INQUIRE_HAS_NEXTREC) != 0)
+ *iqp->nextrec = 0;
+
+ if ((cf & IOPARM_INQUIRE_HAS_BLANK) != 0)
+ cf_strcpy (iqp->blank, iqp->blank_len, undefined);
+
+ if ((cf & IOPARM_INQUIRE_HAS_PAD) != 0)
+ cf_strcpy (iqp->pad, iqp->pad_len, undefined);
+
+ if (cf & IOPARM_INQUIRE_HAS_FLAGS2)
+ {
+ GFC_INTEGER_4 cf2 = iqp->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_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);
+
+ if ((cf & IOPARM_INQUIRE_HAS_ACCESS) != 0)
+ cf_strcpy (iqp->access, iqp->access_len, undefined);
+
+ if ((cf & IOPARM_INQUIRE_HAS_READ) != 0)
+ {
+ p = inquire_read (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->read, iqp->read_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_WRITE) != 0)
+ {
+ p = inquire_write (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->write, iqp->write_len, p);
+ }
+
+ if ((cf & IOPARM_INQUIRE_HAS_READWRITE) != 0)
+ {
+ p = inquire_read (iqp->file, iqp->file_len);
+ cf_strcpy (iqp->readwrite, iqp->readwrite_len, p);
+ }
+}
+
+
+/* Library entry point for the INQUIRE statement (non-IOLENGTH
+ form). */
+
+extern void st_inquire (st_parameter_inquire *);
+export_proto(st_inquire);
+
+void
+st_inquire (st_parameter_inquire *iqp)
+{
+ gfc_unit *u;
+
+ library_start (&iqp->common);
+
+ if ((iqp->common.flags & IOPARM_INQUIRE_HAS_FILE) == 0)
+ {
+ u = find_unit (iqp->common.unit);
+ inquire_via_unit (iqp, u);
+ }
+ else
+ {
+ u = find_file (iqp->file, iqp->file_len);
+ if (u == NULL)
+ inquire_via_filename (iqp);
+ else
+ inquire_via_unit (iqp, u);
+ }
+ if (u != NULL)
+ unlock_unit (u);
+
+ library_end ();
+}