Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/stdio-common/_itowa.h
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
71 lines (60 sloc)
2.23 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Internal function for converting integers to ASCII. | |
Copyright (C) 1994-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _ITOWA_H | |
#define _ITOWA_H 1 | |
#include <features.h> | |
#include <wchar.h> | |
#include <_itoa.h> | |
/* Convert VALUE into ASCII in base BASE (2..36). | |
Write backwards starting the character just before BUFLIM. | |
Return the address of the first (left-to-right) character in the number. | |
Use upper case letters iff UPPER_CASE is nonzero. */ | |
extern wchar_t *_itowa (unsigned long long int value, wchar_t *buflim, | |
unsigned int base, int upper_case); | |
static inline wchar_t * | |
__attribute__ ((unused, always_inline)) | |
_itowa_word (_ITOA_WORD_TYPE value, wchar_t *buflim, | |
unsigned int base, int upper_case) | |
{ | |
extern const wchar_t _itowa_upper_digits[] attribute_hidden; | |
extern const wchar_t _itowa_lower_digits[] attribute_hidden; | |
const wchar_t *digits = (upper_case | |
? _itowa_upper_digits : _itowa_lower_digits); | |
wchar_t *bp = buflim; | |
switch (base) | |
{ | |
#define SPECIAL(Base) \ | |
case Base: \ | |
do \ | |
*--bp = digits[value % Base]; \ | |
while ((value /= Base) != 0); \ | |
break | |
SPECIAL (10); | |
SPECIAL (16); | |
SPECIAL (8); | |
default: | |
do | |
*--bp = digits[value % base]; | |
while ((value /= base) != 0); | |
} | |
return bp; | |
} | |
#undef SPECIAL | |
#if !_ITOA_NEEDED | |
/* No need for special long long versions. */ | |
# define _itowa(value, buf, base, upper_case) \ | |
_itowa_word (value, buf, base, upper_case) | |
#endif | |
#endif /* itowa.h */ |