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/* strtoimax - convert string representation of a number into an intmax_t value. */
/* Copyright 1999-2009 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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 3 of the License, or
(at your option) any later version.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
/* Written by Paul Eggert. Modified by Chet Ramey for Bash. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_STDLIB_H
# include <stdlib.h>
#endif
#include <stdc.h>
/* Verify a requirement at compile-time (unlike assert, which is runtime). */
#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
#ifndef HAVE_DECL_STRTOL
"this configure-time declaration test was not run"
#endif
#if !HAVE_DECL_STRTOL
extern long strtol __P((const char *, char **, int));
#endif
#ifndef HAVE_DECL_STRTOLL
"this configure-time declaration test was not run"
#endif
#if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG
extern long long strtoll __P((const char *, char **, int));
#endif
#ifdef strtoimax
#undef strtoimax
#endif
intmax_t
strtoimax (ptr, endptr, base)
const char *ptr;
char **endptr;
int base;
{
#if HAVE_LONG_LONG
verify(size_is_that_of_long_or_long_long,
(sizeof (intmax_t) == sizeof (long) ||
sizeof (intmax_t) == sizeof (long long)));
if (sizeof (intmax_t) != sizeof (long))
return (strtoll (ptr, endptr, base));
#else
verify (size_is_that_of_long, sizeof (intmax_t) == sizeof (long));
#endif
return (strtol (ptr, endptr, base));
}
#ifdef TESTING
# include <stdio.h>
int
main ()
{
char *p, *endptr;
intmax_t x;
#if HAVE_LONG_LONG
long long y;
#endif
long z;
printf ("sizeof intmax_t: %d\n", sizeof (intmax_t));
#if HAVE_LONG_LONG
printf ("sizeof long long: %d\n", sizeof (long long));
#endif
printf ("sizeof long: %d\n", sizeof (long));
x = strtoimax("42", &endptr, 10);
#if HAVE_LONG_LONG
y = strtoll("42", &endptr, 10);
#else
y = -1;
#endif
z = strtol("42", &endptr, 10);
printf ("%lld %lld %ld\n", x, y, z);
exit (0);
}
#endif
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