1 /* inttostr.h -- convert integers to printable strings 2 3 Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2, or (at your option) 8 any later version. 9 10 This program 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 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software Foundation, 17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 18 19 /* Written by Paul Eggert */ 20 21 #if HAVE_CONFIG_H 22 # include <config.h> 23 #endif 24 25 #if HAVE_INTTYPES_H 26 # include <inttypes.h> 27 #endif 28 #if HAVE_STDINT_H 29 # include <stdint.h> 30 #endif 31 32 #include <limits.h> 33 34 #if HAVE_SYS_TYPES_H 35 # include <sys/types.h> 36 #endif 37 38 /* Upper bound on the string length of an integer converted to string. 39 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; 40 add 1 for integer division truncation; add 1 more for a minus sign. */ 41 #define INT_STRLEN_BOUND(t) ((sizeof (t) * CHAR_BIT - 1) * 302 / 1000 + 2) 42 43 #define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1) 44 45 char *offtostr (off_t, char *); 46 char *imaxtostr (intmax_t, char *); 47 char *umaxtostr (uintmax_t, char *); 48