xstrtol.h
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/* A more useful interface to strtol.
Copyright (C) 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004 Free
Software Foundation, Inc.
This program 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 2, or (at your option)
any later version.
This program 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 this program; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA. */
#ifndef XSTRTOL_H_
# define XSTRTOL_H_ 1
# include "exitfail.h"
# if HAVE_INTTYPES_H
# include <inttypes.h>
# endif
# if HAVE_STDINT_H
# include <stdint.h>
# endif
# ifndef _STRTOL_ERROR
enum strtol_error
{
LONGINT_OK = 0,
/* These two values can be ORed together, to indicate that both
errors occurred. */
LONGINT_OVERFLOW = 1,
LONGINT_INVALID_SUFFIX_CHAR = 2,
LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR
| LONGINT_OVERFLOW),
LONGINT_INVALID = 4
};
typedef enum strtol_error strtol_error;
# endif
# define _DECLARE_XSTRTOL(name, type) \
strtol_error name (const char *, char **, int, type *, const char *);
_DECLARE_XSTRTOL (xstrtol, long int)
_DECLARE_XSTRTOL (xstrtoul, unsigned long int)
_DECLARE_XSTRTOL (xstrtoimax, intmax_t)
_DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
# define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err) \
do \
{ \
switch ((Err)) \
{ \
default: \
abort (); \
\
case LONGINT_INVALID: \
error ((Exit_code), 0, "invalid %s `%s'", \
(Argument_type_string), (Str)); \
break; \
\
case LONGINT_INVALID_SUFFIX_CHAR: \
case LONGINT_INVALID_SUFFIX_CHAR | LONGINT_OVERFLOW: \
error ((Exit_code), 0, "invalid character following %s in `%s'", \
(Argument_type_string), (Str)); \
break; \
\
case LONGINT_OVERFLOW: \
error ((Exit_code), 0, "%s `%s' too large", \
(Argument_type_string), (Str)); \
break; \
} \
} \
while (0)
# define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err) \
_STRTOL_ERROR (exit_failure, Str, Argument_type_string, Err)
# define STRTOL_FAIL_WARN(Str, Argument_type_string, Err) \
_STRTOL_ERROR (0, Str, Argument_type_string, Err)
#endif /* not XSTRTOL_H_ */