xref: /haiku/src/system/libroot/posix/glibc/locale/outdigits.h (revision 5af32e752606778be5dd7379f319fe43cb3f6b8c)
1 /* Copyright (C) 2000 Free Software Foundation, Inc.
2    This file is part of the GNU C Library.
3    Contributed by Ulrich Drepper <drepper@gnu.org>, 2000.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
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    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, write to the Free
17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18    02111-1307 USA.  */
19 
20 #include <assert.h>
21 #include <langinfo.h>
22 #include <string.h>
23 #include "../locale/localeinfo.h"
24 
25 /* Look up the value of the next multibyte character and return its numerical
26    value if it is one of the digits known in the locale.  If *DECIDED is
27    -1 this means it is not yet decided which form it is and we have to
28    search through all available digits.  Otherwise we know which script
29    the digits are from.  */
30 static inline char *
outdigit_value(char * s,int n)31 outdigit_value (char *s, int n)
32 {
33   const char *outdigit;
34   size_t dlen;
35 
36   assert (0 <= n && n <= 9);
37   outdigit = _NL_CURRENT (LC_CTYPE, _NL_CTYPE_OUTDIGIT0_MB + n);
38   dlen = strlen (outdigit);
39 
40   s -= dlen;
41   while (dlen-- > 0)
42     s[dlen] = outdigit[dlen];
43 
44   return s;
45 }
46