1/* A more useful interface to strtol.
2
3   Copyright (C) 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004 Free
4   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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
19
20#ifndef XSTRTOL_H_
21# define XSTRTOL_H_ 1
22
23# include "exitfail.h"
24
25/* Get uintmax_t.  */
26# if HAVE_INTTYPES_H
27#  include <inttypes.h>
28# else
29#  if HAVE_STDINT_H
30#   include <stdint.h>
31#  endif
32# endif
33
34# ifndef _STRTOL_ERROR
35enum strtol_error
36  {
37    LONGINT_OK = 0,
38
39    /* These two values can be ORed together, to indicate that both
40       errors occurred.  */
41    LONGINT_OVERFLOW = 1,
42    LONGINT_INVALID_SUFFIX_CHAR = 2,
43
44    LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR
45						 | LONGINT_OVERFLOW),
46    LONGINT_INVALID = 4
47  };
48typedef enum strtol_error strtol_error;
49# endif
50
51# define _DECLARE_XSTRTOL(name, type) \
52  strtol_error name (const char *, char **, int, type *, const char *);
53_DECLARE_XSTRTOL (xstrtol, long int)
54_DECLARE_XSTRTOL (xstrtoul, unsigned long int)
55_DECLARE_XSTRTOL (xstrtoimax, intmax_t)
56_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
57
58# define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err)	\
59  do									\
60    {									\
61      switch ((Err))							\
62	{								\
63	default:							\
64	  abort ();							\
65									\
66	case LONGINT_INVALID:						\
67	  error ((Exit_code), 0, "invalid %s `%s'",			\
68		 (Argument_type_string), (Str));			\
69	  break;							\
70									\
71	case LONGINT_INVALID_SUFFIX_CHAR:				\
72	case LONGINT_INVALID_SUFFIX_CHAR | LONGINT_OVERFLOW:		\
73	  error ((Exit_code), 0, "invalid character following %s in `%s'", \
74		 (Argument_type_string), (Str));			\
75	  break;							\
76									\
77	case LONGINT_OVERFLOW:						\
78	  error ((Exit_code), 0, "%s `%s' too large",			\
79		 (Argument_type_string), (Str));			\
80	  break;							\
81	}								\
82    }									\
83  while (0)
84
85# define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err)		\
86  _STRTOL_ERROR (exit_failure, Str, Argument_type_string, Err)
87
88# define STRTOL_FAIL_WARN(Str, Argument_type_string, Err)		\
89  _STRTOL_ERROR (0, Str, Argument_type_string, Err)
90
91#endif /* not XSTRTOL_H_ */
92