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