1/* Convert string representation of a number into an intmax_t value.
2
3   Copyright (C) 1999, 2001, 2002, 2003, 2004, 2006 Free Software
4   Foundation, Inc.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software Foundation,
18   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
19
20/* Written by Paul Eggert. */
21
22#include <config.h>
23
24/* Verify interface.  */
25#include <inttypes.h>
26
27#include <stdlib.h>
28
29#include "verify.h"
30
31#ifdef UNSIGNED
32# ifndef HAVE_DECL_STRTOULL
33"this configure-time declaration test was not run"
34# endif
35# if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG_INT
36unsigned long long int strtoull (char const *, char **, int);
37# endif
38
39#else
40
41# ifndef HAVE_DECL_STRTOLL
42"this configure-time declaration test was not run"
43# endif
44# if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG_INT
45long long int strtoll (char const *, char **, int);
46# endif
47#endif
48
49#ifdef UNSIGNED
50# define Have_long_long HAVE_UNSIGNED_LONG_LONG_INT
51# define Int uintmax_t
52# define Unsigned unsigned
53# define strtoimax strtoumax
54# define strtol strtoul
55# define strtoll strtoull
56#else
57# define Have_long_long HAVE_LONG_LONG_INT
58# define Int intmax_t
59# define Unsigned
60#endif
61
62Int
63strtoimax (char const *ptr, char **endptr, int base)
64{
65#if Have_long_long
66  verify (sizeof (Int) == sizeof (Unsigned long int)
67	  || sizeof (Int) == sizeof (Unsigned long long int));
68
69  if (sizeof (Int) != sizeof (Unsigned long int))
70    return strtoll (ptr, endptr, base);
71#else
72  verify (sizeof (Int) == sizeof (Unsigned long int));
73#endif
74
75  return strtol (ptr, endptr, base);
76}
77