freebsd-dev/contrib/tar/lib/xstrtol.h
2002-06-04 10:37:47 +00:00

83 lines
2.5 KiB
C

/* A more useful interface to strtol.
Copyright 1995, 1996, 1998, 1999, 2001 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef XSTRTOL_H_
# define XSTRTOL_H_ 1
# if HAVE_INTTYPES_H
# include <inttypes.h> /* for uintmax_t */
# endif
# ifndef PARAMS
# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
# define PARAMS(Args) Args
# else
# define PARAMS(Args) ()
# endif
# endif
# ifndef _STRTOL_ERROR
enum strtol_error
{
LONGINT_OK, LONGINT_INVALID, LONGINT_INVALID_SUFFIX_CHAR, LONGINT_OVERFLOW
};
typedef enum strtol_error strtol_error;
# endif
# define _DECLARE_XSTRTOL(name, type) \
strtol_error \
name PARAMS ((const char *s, char **ptr, int base, \
type *val, const char *valid_suffixes));
_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)) \
{ \
case LONGINT_OK: \
abort (); \
\
case LONGINT_INVALID: \
error ((Exit_code), 0, "invalid %s `%s'", \
(Argument_type_string), (Str)); \
break; \
\
case LONGINT_INVALID_SUFFIX_CHAR: \
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 (2, 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_ */