* intrinsics/args.c: Implement GETARG and IARGC.

	* Makefile.am: Add it.
	* Makefile.in: Regenerate.
testsuite/
	* gfortran.fortran-torture/execute/getarg_1.f90: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83027 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 58 insertions, 0 deletions

diff --git a/libgfortran/intrinsics/args.c b/libgfortran/intrinsics/args.c
new file mode 100644
index 00000000000..da684fd99d4
--- /dev/null
+++ b/libgfortran/intrinsics/args.c
@@ -0,0 +1,58 @@
+/* Implementation of the IARG/ARGC intrinsic(s).
+   Copyright (C) 2004 Free Software Foundation, Inc.
+
+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 <sys/types.h>
+#include <string.h>
+#include "libgfortran.h"
+
+void 
+prefix(getarg) (GFC_INTEGER_4 *pos, char  *val, GFC_INTEGER_4 val_len)
+{
+  int argc;
+  int arglen;
+  char **argv;
+
+  get_args (&argc, &argv);
+
+  if (val_len < 1 || !val )
+    return;   /* something is wrong , leave immediately */
+  
+  memset( val, ' ', val_len);
+
+  if ((*pos) + 1 <= argc  && *pos >=0 )
+    {
+      arglen = strlen (argv[*pos]);
+      if (arglen > val_len)
+	arglen = val_len;
+      memcpy (val, argv[*pos], arglen);
+    }
+}
+
+GFC_INTEGER_4
+prefix(iargc) ()
+{
+  int argc;
+  char **argv;
+
+  get_args (&argc, &argv);
+
+  return argc;
+}