]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libgfortran/runtime/string.c
1 /* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
2 Contributed by Paul Brook
4 This file is part of the GNU Fortran 95 runtime library (libgfortran).
6 Libgfortran is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 In addition to the permissions in the GNU General Public License, the
12 Free Software Foundation gives you unlimited permission to link the
13 compiled version of this file into combinations with other programs,
14 and to distribute those combinations without any restriction coming
15 from the use of this file. (The General Public License restrictions
16 do apply in other respects; for example, they cover modification of
17 the file, and distribution when not linked into a combine
20 Libgfortran is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with libgfortran; see the file COPYING. If not, write to
27 the Free Software Foundation, 59 Temple Place - Suite 330,
28 Boston, MA 02111-1307, USA. */
33 #include "libgfortran.h"
36 /* Compare a C-style string with a fortran style string in a case-insensitive
37 manner. Used for decoding string options to various statements. Returns
38 zero if not equal, nonzero if equal. */
41 compare0 (const char *s1
, int s1_len
, const char *s2
)
45 /* Strip trailing blanks from the Fortran string. */
46 len
= fstrlen (s1
, s1_len
);
47 return strncasecmp (s1
, s2
, len
) == 0;
51 /* Given a fortran string, return its length exclusive of the trailing
54 fstrlen (const char *string
, int len
)
56 for (len
--; len
>= 0; len
--)
57 if (string
[len
] != ' ')
65 fstrcpy (char *dest
, int destlen
, const char *src
, int srclen
)
67 if (srclen
>= destlen
)
69 /* This will truncate if too long. */
70 memcpy (dest
, src
, destlen
);
74 memcpy (dest
, src
, srclen
);
75 /* Pad with spaces. */
76 memset (&dest
[srclen
], ' ', destlen
- srclen
);
82 cf_strcpy (char *dest
, int dest_len
, const char *src
)
86 src_len
= strlen (src
);
88 if (src_len
>= dest_len
)
90 /* This will truncate if too long. */
91 memcpy (dest
, src
, dest_len
);
95 memcpy (dest
, src
, src_len
);
96 /* Pad with spaces. */
97 memset (&dest
[src_len
], ' ', dest_len
- src_len
);
102 /* Given a fortran string and an array of st_option structures, search through
103 the array to find a match. If the option is not found, we generate an error
104 if no default is provided. */
107 find_option (const char *s1
, int s1_len
, st_option
* opts
,
108 const char *error_message
)
110 for (; opts
->name
; opts
++)
111 if (compare0 (s1
, s1_len
, opts
->name
))
114 generate_error (ERROR_BAD_OPTION
, error_message
);