1/* A more useful interface to strtol.
2
3   Copyright (C) 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004, 2006, 2007
4   Free Software 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#ifndef XSTRTOL_H_
20# define XSTRTOL_H_ 1
21
22# include <getopt.h>
23# include <inttypes.h>
24
25# ifndef _STRTOL_ERROR
26enum strtol_error
27  {
28    LONGINT_OK = 0,
29
30    /* These two values can be ORed together, to indicate that both
31       errors occurred.  */
32    LONGINT_OVERFLOW = 1,
33    LONGINT_INVALID_SUFFIX_CHAR = 2,
34
35    LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR
36						 | LONGINT_OVERFLOW),
37    LONGINT_INVALID = 4
38  };
39typedef enum strtol_error strtol_error;
40# endif
41
42# define _DECLARE_XSTRTOL(name, type) \
43  strtol_error name (const char *, char **, int, type *, const char *);
44_DECLARE_XSTRTOL (xstrtol, long int)
45_DECLARE_XSTRTOL (xstrtoul, unsigned long int)
46_DECLARE_XSTRTOL (xstrtoimax, intmax_t)
47_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
48
49#ifndef __attribute__
50# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
51#  define __attribute__(x)
52# endif
53#endif
54
55#ifndef ATTRIBUTE_NORETURN
56# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
57#endif
58
59/* Report an error for an invalid integer in an option argument.
60
61   ERR is the error code returned by one of the xstrto* functions.
62
63   Use OPT_IDX to decide whether to print the short option string "C"
64   or "-C" or a long option string derived from LONG_OPTION.  OPT_IDX
65   is -2 if the short option "C" was used, without any leading "-"; it
66   is -1 if the short option "-C" was used; otherwise it is an index
67   into LONG_OPTIONS, which should have a name preceded by two '-'
68   characters.
69
70   ARG is the option-argument containing the integer.
71
72   After reporting an error, exit with a failure status.  */
73
74void xstrtol_fatal (enum strtol_error,
75		    int, char, struct option const *,
76		    char const *) ATTRIBUTE_NORETURN;
77
78#endif /* not XSTRTOL_H_ */
79