projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d64b6ad0 | 1 | /* Internal function for converting integers to ASCII. |
| 04277e02 | 2 | Copyright (C) 1994-2019 Free Software Foundation, Inc. |
| d64b6ad0 UD |
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 | |
| 41bdb6e2 AJ |
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. | |
| d64b6ad0 UD |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| d64b6ad0 | 14 | |
| 41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| d64b6ad0 UD |
18 | |
| 19 | #ifndef _ITOWA_H | |
| 20 | #define _ITOWA_H 1 | |
| 21 | #include <features.h> | |
| 22 | #include <wchar.h> | |
| 8e95c99a | 23 | #include <_itoa.h> |
| d64b6ad0 UD |
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 | ||
| c1422e5b UD |
30 | extern wchar_t *_itowa (unsigned long long int value, wchar_t *buflim, |
| 31 | unsigned int base, int upper_case); | |
| d64b6ad0 UD |
32 | |
| 33 | static inline wchar_t * | |
| 9c7ff11a | 34 | __attribute__ ((unused, always_inline)) |
| 8e95c99a | 35 | _itowa_word (_ITOA_WORD_TYPE value, wchar_t *buflim, |
| d64b6ad0 UD |
36 | unsigned int base, int upper_case) |
| 37 | { | |
| aa32f798 UD |
38 | extern const wchar_t _itowa_upper_digits[] attribute_hidden; |
| 39 | extern const wchar_t _itowa_lower_digits[] attribute_hidden; | |
| d64b6ad0 UD |
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 | } | |
| ae64b4bd | 63 | #undef SPECIAL |
| d64b6ad0 | 64 | |
| 8e95c99a L |
65 | #if !_ITOA_NEEDED |
| 66 | /* No need for special long long versions. */ | |
| 67 | # define _itowa(value, buf, base, upper_case) \ | |
| 68 | _itowa_word (value, buf, base, upper_case) | |
| 69 | #endif | |
| 70 | ||
| d64b6ad0 | 71 | #endif /* itowa.h */ |