1 /* $NetBSD: inttostr.h,v 1.1.1.1 2016/01/13 03:15:30 christos Exp $ */ 2 3 /* inttostr.h -- convert integers to printable strings 4 5 Copyright (C) 2001 Free Software Foundation, Inc. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software Foundation, 19 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 21 /* Written by Paul Eggert */ 22 23 #if HAVE_CONFIG_H 24 # include <config.h> 25 #endif 26 27 #if HAVE_INTTYPES_H 28 # include <inttypes.h> 29 #endif 30 31 #if HAVE_LIMITS_H 32 # include <limits.h> 33 #endif 34 #ifndef CHAR_BIT 35 # define CHAR_BIT 8 36 #endif 37 38 #if HAVE_SYS_TYPES_H 39 # include <sys/types.h> 40 #endif 41 42 #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) 43 44 /* Upper bound on the string length of an integer converted to string. 45 302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit; 46 add 1 for integer division truncation; add 1 more for a minus sign. */ 47 #define INT_STRLEN_BOUND(t) \ 48 ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t)) 49 50 #define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1) 51 52 #ifndef PARAMS 53 # if defined PROTOTYPES || defined __STDC__ 54 # define PARAMS(Args) Args 55 # else 56 # define PARAMS(Args) () 57 # endif 58 #endif 59 60 char *offtostr PARAMS ((off_t, char *)); 61 char *imaxtostr PARAMS ((intmax_t, char *)); 62 char *umaxtostr PARAMS ((uintmax_t, char *)); 63