Update.
[glibc.git] / locale / nl_langinfo.c
blob4c8e6285d33452758298c09c955aa958c4010a7a
1 /* User interface for extracting locale-dependent parameters.
2 Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <langinfo.h>
21 #include <errno.h>
22 #include <stddef.h>
23 #include "localeinfo.h"
26 /* Return a string with the data for locale-dependent parameter ITEM. */
28 char *
29 nl_langinfo (item)
30 nl_item item;
32 int category = _NL_ITEM_CATEGORY (item);
33 unsigned int index = _NL_ITEM_INDEX (item);
34 const struct locale_data *data;
36 if (category < 0 || category >= LC_ALL)
38 /* Bogus category: bogus item. */
39 __set_errno (EINVAL);
40 return NULL;
43 data = *_nl_current[category];
45 if (index >= data->nstrings)
47 /* Bogus index for this category: bogus item. */
48 __set_errno (EINVAL);
49 return NULL;
52 /* Return the string for the specified item. */
53 return (char *) data->values[index].string;