1 /* hard-locale.c -- Determine whether a locale is hard.
3 Copyright (C) 1997, 1998, 1999, 2002, 2003, 2004, 2006, 2007 Free
4 Software Foundation, Inc.
6 This program 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 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
22 #include "hard-locale.h"
29 # define GLIBC_VERSION __GLIBC__
31 # define GLIBC_VERSION 0
34 /* Return true if the current CATEGORY locale is hard, i.e. if you
35 can't get away with assuming traditional C or POSIX behavior. */
37 hard_locale (int category)
40 char const *p = setlocale (category, NULL);
44 if (2 <= GLIBC_VERSION)
46 if (strcmp (p, "C") == 0 || strcmp (p, "POSIX") == 0)
51 char *locale = strdup (p);
54 /* Temporarily set the locale to the "C" and "POSIX" locales
55 to find their names, so that we can determine whether one
56 or the other is the caller's locale. */
57 if (((p = setlocale (category, "C"))
58 && strcmp (p, locale) == 0)
59 || ((p = setlocale (category, "POSIX"))
60 && strcmp (p, locale) == 0))
63 /* Restore the caller's locale. */
64 setlocale (category, locale);