1 /* Internal function for converting integers to ASCII. 2 Copyright (C) 1994, 95, 96, 97, 98, 99, 2002 Free Software Foundation, Inc. 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 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. 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 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, write to the Free 17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18 02111-1307 USA. */ 19 20 #ifndef _ITOWA_H 21 #define _ITOWA_H 1 22 #include <features.h> 23 #include <wchar.h> 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 30 extern wchar_t *_itowa (unsigned long long int value, wchar_t *buflim, 31 unsigned int base, int upper_case); 32 33 static inline wchar_t * 34 __attribute__ ((unused)) 35 _itowa_word (unsigned long value, wchar_t *buflim, 36 unsigned int base, int upper_case) 37 { 38 extern const wchar_t _itowa_upper_digits[] attribute_hidden; 39 extern const wchar_t _itowa_lower_digits[] attribute_hidden; 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 } 63 #undef SPECIAL 64 65 #endif /* itowa.h */ 66