1/* Convert string representation of a number into an intmax_t value.
2
3   Copyright (C) 1999, 2001, 2002, 2003, 2004, 2006, 2009, 2010 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 3 of the License, or
9   (at your option) 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, see <http://www.gnu.org/licenses/>.  */
18
19/* Written by Paul Eggert. */
20
21#include <config.h>
22
23/* Verify interface.  */
24#include <inttypes.h>
25
26#include <stdlib.h>
27
28#include "verify.h"
29
30#ifdef UNSIGNED
31# ifndef HAVE_DECL_STRTOULL
32"this configure-time declaration test was not run"
33# endif
34# if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG_INT
35unsigned long long int strtoull (char const *, char **, int);
36# endif
37
38#else
39
40# ifndef HAVE_DECL_STRTOLL
41"this configure-time declaration test was not run"
42# endif
43# if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG_INT
44long long int strtoll (char const *, char **, int);
45# endif
46#endif
47
48#ifdef UNSIGNED
49# define Have_long_long HAVE_UNSIGNED_LONG_LONG_INT
50# define Int uintmax_t
51# define Unsigned unsigned
52# define strtoimax strtoumax
53# define strtol strtoul
54# define strtoll strtoull
55#else
56# define Have_long_long HAVE_LONG_LONG_INT
57# define Int intmax_t
58# define Unsigned
59#endif
60
61Int
62strtoimax (char const *ptr, char **endptr, int base)
63{
64#if Have_long_long
65  verify (sizeof (Int) == sizeof (Unsigned long int)
66          || sizeof (Int) == sizeof (Unsigned long long int));
67
68  if (sizeof (Int) != sizeof (Unsigned long int))
69    return strtoll (ptr, endptr, base);
70#else
71  verify (sizeof (Int) == sizeof (Unsigned long int));
72#endif
73
74  return strtol (ptr, endptr, base);
75}
76