Mercurial > hg > CbC > CbC_gcc
comparison libquadmath/printf/_itoa.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) 1994-1999,2002,2003,2007 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 _ITOA_H | |
21 #define _ITOA_H | |
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 char _itoa_lower_digits[16] = "0123456789abcdef"; | |
29 static const char _itoa_upper_digits[16] = "0123456789ABCDEF"; | |
30 | |
31 static inline char * __attribute__ ((unused, always_inline)) | |
32 _itoa_word (unsigned long value, char *buflim, | |
33 unsigned int base, int upper_case) | |
34 { | |
35 const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits); | |
36 | |
37 switch (base) | |
38 { | |
39 # define SPECIAL(Base) \ | |
40 case Base: \ | |
41 do \ | |
42 *--buflim = digits[value % Base]; \ | |
43 while ((value /= Base) != 0); \ | |
44 break | |
45 | |
46 SPECIAL (10); | |
47 SPECIAL (16); | |
48 SPECIAL (8); | |
49 default: | |
50 do | |
51 *--buflim = digits[value % base]; | |
52 while ((value /= base) != 0); | |
53 } | |
54 return buflim; | |
55 } | |
56 | |
57 static inline char * __attribute__ ((unused, always_inline)) | |
58 _itoa (uint64_t value, char *buflim, | |
59 unsigned int base, int upper_case) | |
60 { | |
61 const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits); | |
62 | |
63 switch (base) | |
64 { | |
65 SPECIAL (10); | |
66 SPECIAL (16); | |
67 SPECIAL (8); | |
68 default: | |
69 do | |
70 *--buflim = digits[value % base]; | |
71 while ((value /= base) != 0); | |
72 } | |
73 return buflim; | |
74 } | |
75 # undef SPECIAL | |
76 | |
77 #endif /* itoa.h */ |