84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* $NetBSD: strtoumax.c,v 1.1.1.1 2003/01/26 23:15:13 wiz Exp $ */
|
|
|
|
/* Convert string representation of a number into an uintmax_t value.
|
|
Copyright 1999 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
/* Written by Paul Eggert. */
|
|
|
|
#if HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#if HAVE_INTTYPES_H
|
|
# include <inttypes.h>
|
|
#endif
|
|
|
|
#if HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
#endif
|
|
|
|
#ifndef PARAMS
|
|
# if defined PROTOTYPES || defined __STDC__
|
|
# define PARAMS(Args) Args
|
|
# else
|
|
# define PARAMS(Args) ()
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef HAVE_DECL_STRTOUL
|
|
"this configure-time declaration test was not run"
|
|
#endif
|
|
#if !HAVE_DECL_STRTOUL
|
|
unsigned long strtoul PARAMS ((char const *, char **, int));
|
|
#endif
|
|
|
|
#ifndef HAVE_DECL_STRTOULL
|
|
"this configure-time declaration test was not run"
|
|
#endif
|
|
#if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
|
|
unsigned long long strtoull PARAMS ((char const *, char **, int));
|
|
#endif
|
|
|
|
uintmax_t
|
|
strtoumax (char const *ptr, char **endptr, int base)
|
|
{
|
|
#define USE_IF_EQUIVALENT(function) \
|
|
if (sizeof (uintmax_t) == sizeof function (ptr, endptr, base)) \
|
|
return function (ptr, endptr, base);
|
|
|
|
#if HAVE_UNSIGNED_LONG_LONG
|
|
USE_IF_EQUIVALENT (strtoull)
|
|
#endif
|
|
|
|
USE_IF_EQUIVALENT (strtoul)
|
|
|
|
abort ();
|
|
}
|
|
|
|
#ifdef TESTING
|
|
# include <stdio.h>
|
|
int
|
|
main ()
|
|
{
|
|
char *p, *endptr;
|
|
printf ("sizeof uintmax_t: %d\n", sizeof (uintmax_t));
|
|
printf ("sizeof strtoull(): %d\n", sizeof strtoull(p, &endptr, 10));
|
|
printf ("sizeof strtoul(): %d\n", sizeof strtoul(p, &endptr, 10));
|
|
exit (0);
|
|
}
|
|
#endif
|