/* Internal function for converting integers to ASCII. Copyright (C) 1994, 95, 96, 97, 98, 99, 2002 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 #include <sys/cdefs.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 char *_itoa (unsigned long long int value, char *buflim, unsigned int base, int upper_case); extern const char _itoa_upper_digits[]; extern const char _itoa_upper_digits_internal[] attribute_hidden; extern const char _itoa_lower_digits[]; extern const char _itoa_lower_digits_internal[] attribute_hidden; static inline char * __attribute__ ((unused)) _itoa_word (unsigned long value, char *buflim, unsigned int base, int upper_case) { const char *digits = (upper_case #if !defined NOT_IN_libc || defined IS_IN_rtld ? INTUSE(_itoa_upper_digits) : INTUSE(_itoa_lower_digits) #else ? _itoa_upper_digits : _itoa_lower_digits #endif ); 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; } #undef SPECIAL static inline char * __attribute__ ((unused)) _fitoa_word (unsigned long value, char *buf, unsigned int base, int upper_case) { char tmpbuf[sizeof (value) * 4]; /* Worst case length: base 2. */ char *cp = _itoa_word (value, tmpbuf + sizeof (value) * 4, base, upper_case); while (cp < tmpbuf + sizeof (value) * 4) *buf++ = *cp++; return buf; } static inline char * __attribute__ ((unused)) _fitoa (unsigned long long value, char *buf, unsigned int base, int upper_case) { char tmpbuf[sizeof (value) * 4]; /* Worst case length: base 2. */ char *cp = _itoa (value, tmpbuf + sizeof (value) * 4, base, upper_case); while (cp < tmpbuf + sizeof (value) * 4) *buf++ = *cp++; return buf; } #endif /* itoa.h */