Mercurial > hg > CbC > CbC_gcc
comparison libquadmath/printf/_itowa.h @ 68:561a7518be6b
update gcc-4.6
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 21 Aug 2011 07:07:55 +0900 |
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67:f6334be47118 | 68:561a7518be6b |
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1 /* Internal function for converting integers to ASCII. | |
2 Copyright (C) 1994,95,96,97,98,99,2002,2003 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 | |
23 /* Convert VALUE into ASCII in base BASE (2..16). | |
24 Write backwards starting the character just before BUFLIM. | |
25 Return the address of the first (left-to-right) character in the number. | |
26 Use upper case letters iff UPPER_CASE is nonzero. */ | |
27 | |
28 static const wchar_t _itowa_lower_digits[16] = L_("0123456789abcdef"); | |
29 static const wchar_t _itowa_upper_digits[16] = L_("0123456789ABCDEF"); | |
30 | |
31 static inline wchar_t * | |
32 __attribute__ ((unused, always_inline)) | |
33 _itowa_word (unsigned long value, wchar_t *buflim, | |
34 unsigned int base, int upper_case) | |
35 { | |
36 const wchar_t *digits = (upper_case | |
37 ? _itowa_upper_digits : _itowa_lower_digits); | |
38 wchar_t *bp = buflim; | |
39 | |
40 switch (base) | |
41 { | |
42 #define SPECIAL(Base) \ | |
43 case Base: \ | |
44 do \ | |
45 *--bp = digits[value % Base]; \ | |
46 while ((value /= Base) != 0); \ | |
47 break | |
48 | |
49 SPECIAL (10); | |
50 SPECIAL (16); | |
51 SPECIAL (8); | |
52 default: | |
53 do | |
54 *--bp = digits[value % base]; | |
55 while ((value /= base) != 0); | |
56 } | |
57 return bp; | |
58 } | |
59 | |
60 static inline wchar_t * | |
61 __attribute__ ((unused, always_inline)) | |
62 _itowa (uint64_t value, wchar_t *buflim, | |
63 unsigned int base, int upper_case) | |
64 { | |
65 const wchar_t *digits = (upper_case | |
66 ? _itowa_upper_digits : _itowa_lower_digits); | |
67 wchar_t *bp = buflim; | |
68 | |
69 switch (base) | |
70 { | |
71 SPECIAL (10); | |
72 SPECIAL (16); | |
73 SPECIAL (8); | |
74 default: | |
75 do | |
76 *--bp = digits[value % base]; | |
77 while ((value /= base) != 0); | |
78 } | |
79 return bp; | |
80 } | |
81 #undef SPECIAL | |
82 | |
83 #endif /* itowa.h */ |