diff options
Diffstat (limited to 'REORG.TODO/stdio-common/_itowa.h')
-rw-r--r-- | REORG.TODO/stdio-common/_itowa.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/_itowa.h b/REORG.TODO/stdio-common/_itowa.h new file mode 100644 index 0000000000..985d5474a5 --- /dev/null +++ b/REORG.TODO/stdio-common/_itowa.h @@ -0,0 +1,71 @@ +/* Internal function for converting integers to ASCII. + Copyright (C) 1994-2017 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 */ |