88fdfd5a86
2007-05-27 Janne Blomqvist <jb@gcc.gnu.org> * runtime/string.c (compare0): Use gfc_charlen_type instead of int. (fstrlen): Likewise. (find_option): Likewise. (fstrcpy): Use gfc_charlen_type instead of int, return length. (cf_strcpy): Likewise. * libgfortran.h: Change string prototypes to use gfc_charlen_type. * io/open.c (new_unit): Use snprintf if available. * io/list_read.c (nml_touch_nodes): Use memcpy instead of strcpy/strcat. (nml_read_obj): Likewise. * io/transfer.c (st_set_nml_var): Likewise. * io/write.c (output_float): Use snprintf if available. (nml_write_obj) Use memcpy instead of strcpy/strcat. From-SVN: r125100
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc.
|
|
Contributed by Paul Brook
|
|
|
|
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 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
|
|
GNU General Public License for more details.
|
|
|
|
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, 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
#include "config.h"
|
|
#include <string.h>
|
|
|
|
#include "libgfortran.h"
|
|
|
|
/* Compare a C-style string with a fortran style string in a case-insensitive
|
|
manner. Used for decoding string options to various statements. Returns
|
|
zero if not equal, nonzero if equal. */
|
|
|
|
static int
|
|
compare0 (const char *s1, gfc_charlen_type s1_len, const char *s2)
|
|
{
|
|
size_t len;
|
|
|
|
/* Strip trailing blanks from the Fortran string. */
|
|
len = fstrlen (s1, s1_len);
|
|
if (len != strlen(s2)) return 0; /* don't match */
|
|
return strncasecmp (s1, s2, len) == 0;
|
|
}
|
|
|
|
|
|
/* Given a fortran string, return its length exclusive of the trailing
|
|
spaces. */
|
|
|
|
gfc_charlen_type
|
|
fstrlen (const char *string, gfc_charlen_type len)
|
|
{
|
|
for (; len > 0; len--)
|
|
if (string[len-1] != ' ')
|
|
break;
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
/* Copy a Fortran string (not null-terminated, hence length arguments
|
|
for both source and destination strings. Returns the non-padded
|
|
length of the destination. */
|
|
|
|
gfc_charlen_type
|
|
fstrcpy (char *dest, gfc_charlen_type destlen,
|
|
const char *src, gfc_charlen_type srclen)
|
|
{
|
|
if (srclen >= destlen)
|
|
{
|
|
/* This will truncate if too long. */
|
|
memcpy (dest, src, destlen);
|
|
return destlen;
|
|
}
|
|
else
|
|
{
|
|
memcpy (dest, src, srclen);
|
|
/* Pad with spaces. */
|
|
memset (&dest[srclen], ' ', destlen - srclen);
|
|
return srclen;
|
|
}
|
|
}
|
|
|
|
|
|
/* Copy a null-terminated C string to a non-null-terminated Fortran
|
|
string. Returns the non-padded length of the destination string. */
|
|
|
|
gfc_charlen_type
|
|
cf_strcpy (char *dest, gfc_charlen_type dest_len, const char *src)
|
|
{
|
|
size_t src_len;
|
|
|
|
src_len = strlen (src);
|
|
|
|
if (src_len >= (size_t) dest_len)
|
|
{
|
|
/* This will truncate if too long. */
|
|
memcpy (dest, src, dest_len);
|
|
return dest_len;
|
|
}
|
|
else
|
|
{
|
|
memcpy (dest, src, src_len);
|
|
/* Pad with spaces. */
|
|
memset (&dest[src_len], ' ', dest_len - src_len);
|
|
return src_len;
|
|
}
|
|
}
|
|
|
|
|
|
/* Given a fortran string and an array of st_option structures, search through
|
|
the array to find a match. If the option is not found, we generate an error
|
|
if no default is provided. */
|
|
|
|
int
|
|
find_option (st_parameter_common *cmp, const char *s1, gfc_charlen_type s1_len,
|
|
const st_option * opts, const char *error_message)
|
|
{
|
|
for (; opts->name; opts++)
|
|
if (compare0 (s1, s1_len, opts->name))
|
|
return opts->value;
|
|
|
|
generate_error (cmp, ERROR_BAD_OPTION, error_message);
|
|
|
|
return -1;
|
|
}
|