check.c (gfc_check_getcwd_sub): New function.

2004-09-15  Steven G. Kargl  <kargls@comcast.net>

	* check.c (gfc_check_getcwd_sub): New function.
	* gfortran.h (GFC_ISYM_GETCWD): New symbol.
	* intrinsic.c (add_functions): Add function definition;
	Use symbol.
	* intrinsic.c (add_subroutines): Add subroutine definitions.
	* intrinsic.h: Add prototypes.
	* iresolve.c (gfc_resolve_getcwd, gfc_resolve_getcwd_sub):
	New functions.
	* trans-intrinsic.c (gfc_conv_intrinsic_function): Use symbol.
libgfortran/
	* intrinsics/getcwd.c: New file.
	* Makefile.am: Add getcwd.c.
	* Makefile.in: Regenerated.

From-SVN: r87552

3 files changed, 84 insertions, 2 deletions

diff --git a/libgfortran/Makefile.am b/libgfortran/Makefile.am
index 91d70b8..060166a 100644
--- a/libgfortran/Makefile.am
+++ b/libgfortran/Makefile.am
@@ -49,6 +49,7 @@ intrinsics/erf.c \
 intrinsics/eoshift0.c \
 intrinsics/eoshift2.c \
 intrinsics/etime.c \
+intrinsics/getcwd.c \
 intrinsics/getXid.c \
 intrinsics/ishftc.c \
 intrinsics/pack_generic.c \
diff --git a/libgfortran/Makefile.in b/libgfortran/Makefile.in
index ded21b6..fb06ca5 100644
--- a/libgfortran/Makefile.in
+++ b/libgfortran/Makefile.in
@@ -120,8 +120,8 @@ am__objects_32 = backspace.lo close.lo endfile.lo format.lo inquire.lo \
 	unit.lo unix.lo write.lo
 am__objects_33 = associated.lo abort.lo args.lo bessel.lo \
 	c99_functions.lo cpu_time.lo cshift0.lo date_and_time.lo \
-	env.lo erf.lo eoshift0.lo eoshift2.lo etime.lo getXid.lo \
-	ishftc.lo pack_generic.lo size.lo spread_generic.lo \
+	env.lo erf.lo eoshift0.lo eoshift2.lo etime.lo getcwd.lo \
+	getXid.lo ishftc.lo pack_generic.lo size.lo spread_generic.lo \
 	string_intrinsics.lo rand.lo random.lo reshape_generic.lo \
 	reshape_packed.lo selected_int_kind.lo selected_real_kind.lo \
 	system_clock.lo transpose_generic.lo unpack_generic.lo \
@@ -321,6 +321,7 @@ intrinsics/erf.c \
 intrinsics/eoshift0.c \
 intrinsics/eoshift2.c \
 intrinsics/etime.c \
+intrinsics/getcwd.c \
 intrinsics/getXid.c \
 intrinsics/ishftc.c \
 intrinsics/pack_generic.c \
@@ -2086,6 +2087,15 @@ etime.obj: intrinsics/etime.c
 etime.lo: intrinsics/etime.c
 	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o etime.lo `test -f 'intrinsics/etime.c' || echo '$(srcdir)/'`intrinsics/etime.c
 
+getcwd.o: intrinsics/getcwd.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getcwd.o `test -f 'intrinsics/getcwd.c' || echo '$(srcdir)/'`intrinsics/getcwd.c
+
+getcwd.obj: intrinsics/getcwd.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getcwd.obj `if test -f 'intrinsics/getcwd.c'; then $(CYGPATH_W) 'intrinsics/getcwd.c'; else $(CYGPATH_W) '$(srcdir)/intrinsics/getcwd.c'; fi`
+
+getcwd.lo: intrinsics/getcwd.c
+	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getcwd.lo `test -f 'intrinsics/getcwd.c' || echo '$(srcdir)/'`intrinsics/getcwd.c
+
 getXid.o: intrinsics/getXid.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o getXid.o `test -f 'intrinsics/getXid.c' || echo '$(srcdir)/'`intrinsics/getXid.c
 
diff --git a/libgfortran/intrinsics/getcwd.c b/libgfortran/intrinsics/getcwd.c
new file mode 100644
index 0000000..86afa6c
--- /dev/null
+++ b/libgfortran/intrinsics/getcwd.c
@@ -0,0 +1,71 @@
+/* Implementation of the GETCWD intrinsic.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Steven G. Kargl <kargls@comcast.net>.
+
+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 Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#include <errno.h>
+
+void
+prefix(getcwd_i4_sub) (char * cwd, GFC_INTEGER_4 * status,
+		       gfc_charlen_type cwd_len)
+{
+  char str[cwd_len + 1], *s;
+  GFC_INTEGER_4 stat;
+
+  memset(cwd, ' ', (size_t) cwd_len);
+
+  if (!getcwd (str, (size_t) cwd_len + 1))
+    stat = errno;
+  else
+    {
+      stat = 0;
+      memcpy (cwd, str, strlen (str));
+    }
+  if (status != NULL) 
+    *status = stat;
+}
+
+void
+prefix(getcwd_i8_sub) (char * cwd, GFC_INTEGER_8 * status,
+		               gfc_charlen_type cwd_len)
+{
+  GFC_INTEGER_4 status4;
+
+  prefix (getcwd_i4_sub) (cwd, &status4, cwd_len);
+  if (status)
+    *status = status4;
+}
+
+GFC_INTEGER_4
+prefix(getcwd) (char * cwd, gfc_charlen_type cwd_len)
+{
+  GFC_INTEGER_4 status;
+  prefix(getcwd_i4_sub) (cwd, &status, cwd_len);
+  return status;
+}