1/* Internal function for converting integers to ASCII.
2   Copyright (C) 1994, 95, 96, 97, 98, 99, 2002 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
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#ifndef _ITOWA_H
21#define _ITOWA_H	1
22#include <features.h>
23#include <wchar.h>
24
25/* Convert VALUE into ASCII in base BASE (2..36).
26   Write backwards starting the character just before BUFLIM.
27   Return the address of the first (left-to-right) character in the number.
28   Use upper case letters iff UPPER_CASE is nonzero.  */
29
30extern wchar_t *_itowa (unsigned long long int value, wchar_t *buflim,
31			unsigned int base, int upper_case);
32
33static inline wchar_t *
34__attribute__ ((unused))
35_itowa_word (unsigned long value, wchar_t *buflim,
36	     unsigned int base, int upper_case)
37{
38  extern const wchar_t _itowa_upper_digits[] attribute_hidden;
39  extern const wchar_t _itowa_lower_digits[] attribute_hidden;
40  const wchar_t *digits = (upper_case
41			   ? _itowa_upper_digits : _itowa_lower_digits);
42  wchar_t *bp = buflim;
43
44  switch (base)
45    {
46#define SPECIAL(Base)							      \
47    case Base:								      \
48      do								      \
49	*--bp = digits[value % Base];					      \
50      while ((value /= Base) != 0);					      \
51      break
52
53      SPECIAL (10);
54      SPECIAL (16);
55      SPECIAL (8);
56    default:
57      do
58	*--bp = digits[value % base];
59      while ((value /= base) != 0);
60    }
61  return bp;
62}
63#undef SPECIAL
64
65#endif	/* itowa.h */
66