/* Convert string representation of a number into an integer value.
- Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2003
+ Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2003, 2005,
+ 2006, 2007
Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C
Library. Bugs can be reported to bug-glibc@gnu.org.
- This program is free software; you can redistribute it and/or modify it
+ 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
+ Free Software Foundation; either version 3 of the License, or any
later version.
This program is distributed in the hope that it will be useful,
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. */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef _LIBC
# define USE_NUMBER_GROUPING
+#else
+# include <config.h>
#endif
#include <ctype.h>
#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
#ifndef __set_errno
# define __set_errno(Val) errno = (Val)
#endif
# define STRTOL_LONG_MAX LONG_LONG_MAX
# define STRTOL_ULONG_MAX ULONG_LONG_MAX
-/* The extra casts work around common compiler bugs,
- e.g. Cray C 5.0.3.0 when t == time_t. */
-# ifndef TYPE_SIGNED
-# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
-# endif
-# ifndef TYPE_MINIMUM
-# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
- ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
- : (t) 0))
-# endif
-# ifndef TYPE_MAXIMUM
-# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
-# endif
+/* The extra casts in the following macros work around compiler bugs,
+ e.g., in Cray C 5.0.3.0. */
+
+/* True if negative values of the signed integer type T use two's
+ complement, ones' complement, or signed magnitude representation,
+ respectively. Much GNU code assumes two's complement, but some
+ people like to be portable to all possible C hosts. */
+# define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
+# define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
+# define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
+
+/* True if the arithmetic type T is signed. */
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+
+/* The maximum and minimum values for the integer type T. These
+ macros have undefined behavior if T is signed and has padding bits.
+ If this is a problem for you, please let us know how to fix it for
+ your host. */
+# define TYPE_MINIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) 0 \
+ : TYPE_SIGNED_MAGNITUDE (t) \
+ ? ~ (t) 0 \
+ : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+# define TYPE_MAXIMUM(t) \
+ ((t) (! TYPE_SIGNED (t) \
+ ? (t) -1 \
+ : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
# ifndef ULONG_LONG_MAX
# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long)
# define _NL_CURRENT(category, item) \
(current->values[_NL_ITEM_INDEX (item)].string)
# define LOCALE_PARAM , loc
-# define LOCALE_PARAM_DECL , __locale_t loc
+# define LOCALE_PARAM_PROTO , __locale_t loc
#else
# define LOCALE_PARAM
-# define LOCALE_PARAM_DECL
+# define LOCALE_PARAM_PROTO
#endif
-#if defined _LIBC || defined HAVE_WCHAR_H
-# include <wchar.h>
-#endif
+#include <wchar.h>
#ifdef USE_WIDE_CHAR
# include <wctype.h>
# define TOUPPER(Ch) towupper (Ch)
# endif
#else
-# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
-# define IN_CTYPE_DOMAIN(c) 1
-# else
-# define IN_CTYPE_DOMAIN(c) isascii(c)
-# endif
# define L_(Ch) Ch
# define UCHAR_TYPE unsigned char
# define STRING_TYPE char
# define ISALPHA(Ch) __isalpha_l ((Ch), loc)
# define TOUPPER(Ch) __toupper_l ((Ch), loc)
# else
-# define ISSPACE(Ch) (IN_CTYPE_DOMAIN (Ch) && isspace (Ch))
-# define ISALPHA(Ch) (IN_CTYPE_DOMAIN (Ch) && isalpha (Ch))
-# define TOUPPER(Ch) (IN_CTYPE_DOMAIN (Ch) ? toupper (Ch) : (Ch))
+# define ISSPACE(Ch) isspace (Ch)
+# define ISALPHA(Ch) isalpha (Ch)
+# define TOUPPER(Ch) toupper (Ch)
# endif
#endif
INT
INTERNAL (strtol) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
- int base, int group LOCALE_PARAM_DECL)
+ int base, int group LOCALE_PARAM_PROTO)
{
int negative;
register unsigned LONG int cutoff;
weak_function
#endif
strtol (const STRING_TYPE *nptr, STRING_TYPE **endptr,
- int base LOCALE_PARAM_DECL)
+ int base LOCALE_PARAM_PROTO)
{
return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
}