1/* inttostr.h -- convert integers to printable strings
2
3   Copyright (C) 2001 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
29#if HAVE_LIMITS_H
30# include <limits.h>
31#endif
32#ifndef CHAR_BIT
33# define CHAR_BIT 8
34#endif
35
36#if HAVE_SYS_TYPES_H
37# include <sys/types.h>
38#endif
39
40#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
41
42/* Upper bound on the string length of an integer converted to string.
43   302 / 1000 is ceil (log10 (2.0)).  Subtract 1 for the sign bit;
44   add 1 for integer division truncation; add 1 more for a minus sign.  */
45#define INT_STRLEN_BOUND(t) \
46 ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t))
47
48#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
49
50#ifndef PARAMS
51# if defined PROTOTYPES || defined __STDC__
52#  define PARAMS(Args) Args
53# else
54#  define PARAMS(Args) ()
55# endif
56#endif
57
58char *offtostr PARAMS ((off_t, char *));
59char *imaxtostr PARAMS ((intmax_t, char *));
60char *umaxtostr PARAMS ((uintmax_t, char *));
61