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/* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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
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