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- /* Internal function for converting integers to ASCII.
- Copyright (C) 1994-1999,2002,2003,2007 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _ITOA_H
- #define _ITOA_H
- /* Convert VALUE into ASCII in base BASE (2..16).
- 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. */
- static const char _itoa_lower_digits[16] = "0123456789abcdef";
- static const char _itoa_upper_digits[16] = "0123456789ABCDEF";
- static inline char * __attribute__ ((unused, always_inline))
- _itoa_word (unsigned long value, char *buflim,
- unsigned int base, int upper_case)
- {
- const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits);
- switch (base)
- {
- # define SPECIAL(Base) \
- case Base: \
- do \
- *--buflim = digits[value % Base]; \
- while ((value /= Base) != 0); \
- break
- SPECIAL (10);
- SPECIAL (16);
- SPECIAL (8);
- default:
- do
- *--buflim = digits[value % base];
- while ((value /= base) != 0);
- }
- return buflim;
- }
- static inline char * __attribute__ ((unused, always_inline))
- _itoa (uint64_t value, char *buflim,
- unsigned int base, int upper_case)
- {
- const char *digits = (upper_case ? _itoa_upper_digits : _itoa_lower_digits);
- switch (base)
- {
- SPECIAL (10);
- SPECIAL (16);
- SPECIAL (8);
- default:
- do
- *--buflim = digits[value % base];
- while ((value /= base) != 0);
- }
- return buflim;
- }
- # undef SPECIAL
- #endif /* itoa.h */
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