gcc/libgfortran/intrinsics/args.c

59 lines
1.5 KiB
C

/* 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;
}