-/* Copyright (C) 1991, 1992, 1994, 1995 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@prep.ai.mit.edu.
+/* Convert string representation of a number into an integer value.
+ Copyright (C) 1991, 92, 94, 95, 96, 97, 98, 99 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
under the terms of the GNU General Public License as published by 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-#ifdef HAVE_CONFIG_H
+#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifndef errno
extern int errno;
#endif
+#ifndef __set_errno
+# define __set_errno(Val) errno = (Val)
+#endif
-#if HAVE_LIMITS_H
+#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#ifdef STDC_HEADERS
# include <stddef.h>
# include <stdlib.h>
+# include <string.h>
#else
# ifndef NULL
# define NULL 0
# include "../locale/localeinfo.h"
#endif
-/* Nonzero if we are defining `strtoul' or `strtouq', operating on
+/* Nonzero if we are defining `strtoul' or `strtoull', operating on
unsigned integers. */
#ifndef UNSIGNED
# define UNSIGNED 0
# define INT LONG int
#else
-# define strtol strtoul
# define INT unsigned LONG int
#endif
-/* If QUAD is defined, we are defining `strtoq' or `strtouq',
- operating on `long long int's. */
-#ifdef QUAD
+/* Determine the name. */
+#ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# if UNSIGNED
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol __wcstoull_l
+# else
+# define strtol __wcstoul_l
+# endif
+# else
+# ifdef QUAD
+# define strtol __strtoull_l
+# else
+# define strtol __strtoul_l
+# endif
+# endif
+# else
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol __wcstoll_l
+# else
+# define strtol __wcstol_l
+# endif
+# else
+# ifdef QUAD
+# define strtol __strtoll_l
+# else
+# define strtol __strtol_l
+# endif
+# endif
+# endif
+#else
# if UNSIGNED
-# define strtoul strtouq
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol wcstoull
+# else
+# define strtol wcstoul
+# endif
+# else
+# ifdef QUAD
+# define strtol strtoull
+# else
+# define strtol strtoul
+# endif
+# endif
# else
-# define strtol strtoq
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol wcstoll
+# else
+# define strtol wcstol
+# endif
+# else
+# ifdef QUAD
+# define strtol strtoll
+# endif
+# endif
# endif
+#endif
+
+/* If QUAD is defined, we are defining `strtoll' or `strtoull',
+ operating on `long long int's. */
+#ifdef QUAD
# define LONG long long
-# undef LONG_MIN
-# define LONG_MIN LONG_LONG_MIN
-# undef LONG_MAX
-# define LONG_MAX LONG_LONG_MAX
-# undef ULONG_MAX
-# define ULONG_MAX ULONG_LONG_MAX
+# define STRTOL_LONG_MIN LONG_LONG_MIN
+# 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
+
+# ifndef ULONG_LONG_MAX
+# define ULONG_LONG_MAX TYPE_MAXIMUM (unsigned long long)
+# endif
+# ifndef LONG_LONG_MAX
+# define LONG_LONG_MAX TYPE_MAXIMUM (long long int)
+# endif
+# ifndef LONG_LONG_MIN
+# define LONG_LONG_MIN TYPE_MINIMUM (long long int)
+# endif
+
# if __GNUC__ == 2 && __GNUC_MINOR__ < 7
/* Work around gcc bug with using this constant. */
static const unsigned long long int maxquad = ULONG_LONG_MAX;
-# undef ULONG_MAX
-# define ULONG_MAX maxquad
+# undef STRTOL_ULONG_MAX
+# define STRTOL_ULONG_MAX maxquad
# endif
#else
# define LONG long
+
+# ifndef ULONG_MAX
+# define ULONG_MAX ((unsigned long) ~(unsigned long) 0)
+# endif
+# ifndef LONG_MAX
+# define LONG_MAX ((long int) (ULONG_MAX >> 1))
+# endif
+# define STRTOL_LONG_MIN LONG_MIN
+# define STRTOL_LONG_MAX LONG_MAX
+# define STRTOL_ULONG_MAX ULONG_MAX
+#endif
+
+
+/* We use this code also for the extended locale handling where the
+ function gets as an additional argument the locale which has to be
+ used. To access the values we have to redefine the _NL_CURRENT
+ macro. */
+#ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# undef _NL_CURRENT
+# define _NL_CURRENT(category, item) \
+ (current->values[_NL_ITEM_INDEX (item)].string)
+# define LOCALE_PARAM , loc
+# define LOCALE_PARAM_DECL __locale_t loc;
+#else
+# define LOCALE_PARAM
+# define LOCALE_PARAM_DECL
+#endif
+
+#if defined _LIBC || defined HAVE_WCHAR_H
+# include <wchar.h>
#endif
-#ifdef __STDC__
-# define INTERNAL(x) INTERNAL1(x)
-# define INTERNAL1(x) __##x##_internal
+#ifdef USE_WIDE_CHAR
+# include <wctype.h>
+# define L_(Ch) L##Ch
+# define UCHAR_TYPE wint_t
+# define STRING_TYPE wchar_t
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define ISSPACE(Ch) __iswspace_l ((Ch), loc)
+# define ISALPHA(Ch) __iswalpha_l ((Ch), loc)
+# define TOUPPER(Ch) __towupper_l ((Ch), loc)
+# else
+# define ISSPACE(Ch) iswspace (Ch)
+# define ISALPHA(Ch) iswalpha (Ch)
+# define TOUPPER(Ch) towupper (Ch)
+# endif
#else
-# define INTERNAL(x) __/**/x/**/_internal
+# 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
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define ISSPACE(Ch) __isspace_l ((Ch), loc)
+# 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))
+# endif
+#endif
+
+/* For compilers which are ansi but don't define __STDC__, like SGI
+ Irix-4.0.5 cc, also check whether PROTOTYPES is defined. */
+#if defined (__STDC__) || defined (PROTOTYPES)
+# define INTERNAL(X) INTERNAL1(X)
+# define INTERNAL1(X) __##X##_internal
+# define WEAKNAME(X) WEAKNAME1(X)
+#else
+# define INTERNAL(X) __/**/X/**/_internal
#endif
#ifdef USE_NUMBER_GROUPING
#endif
+
/* Convert NPTR to an `unsigned long int' or `long int' in base BASE.
If BASE is 0 the base is determined by the presence of a leading
zero, indicating octal or a leading "0x" or "0X", indicating hexadecimal.
one converted is stored in *ENDPTR. */
INT
-INTERNAL (strtol) (nptr, endptr, base, group)
- const char *nptr;
- char **endptr;
+INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
+ const STRING_TYPE *nptr;
+ STRING_TYPE **endptr;
int base;
int group;
+ LOCALE_PARAM_DECL
{
int negative;
register unsigned LONG int cutoff;
register unsigned int cutlim;
register unsigned LONG int i;
- register const char *s;
- register unsigned char c;
- const char *save, *end;
+ register const STRING_TYPE *s;
+ register UCHAR_TYPE c;
+ const STRING_TYPE *save, *end;
int overflow;
#ifdef USE_NUMBER_GROUPING
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+ struct locale_data *current = loc->__locales[LC_NUMERIC];
+# endif
/* The thousands character of the current locale. */
- wchar_t thousands;
+ wchar_t thousands = L'\0';
/* The numeric grouping specification of the current locale,
in the format described in <locale.h>. */
const char *grouping;
else
{
/* Figure out the thousands separator character. */
- if (mbtowc (&thousands, _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
- strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
- thousands = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
+# if defined _LIBC || defined _HAVE_BTOWC
+ thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP));
+ if (thousands == WEOF)
+ thousands = L'\0';
+# endif
if (thousands == L'\0')
grouping = NULL;
}
#endif
if (base < 0 || base == 1 || base > 36)
- base = 10;
+ {
+ __set_errno (EINVAL);
+ return 0;
+ }
- s = nptr;
+ save = s = nptr;
/* Skip white space. */
- while (isspace (*s))
+ while (ISSPACE (*s))
++s;
- if (*s == '\0')
+ if (*s == L_('\0'))
goto noconv;
/* Check for a sign. */
- if (*s == '-')
+ if (*s == L_('-'))
{
negative = 1;
++s;
}
- else if (*s == '+')
+ else if (*s == L_('+'))
{
negative = 0;
++s;
else
negative = 0;
- if (base == 16 && s[0] == '0' && toupper (s[1]) == 'X')
- s += 2;
-
- /* If BASE is zero, figure it out ourselves. */
- if (base == 0)
- if (*s == '0')
- {
- if (toupper (s[1]) == 'X')
- {
- s += 2;
- base = 16;
- }
- else
- base = 8;
- }
- else
- base = 10;
+ /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
+ if (*s == L_('0'))
+ {
+ if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))
+ {
+ s += 2;
+ base = 16;
+ }
+ else if (base == 0)
+ base = 8;
+ }
+ else if (base == 0)
+ base = 10;
/* Save the pointer so we can check later if anything happened. */
save = s;
{
/* Find the end of the digit string and check its grouping. */
end = s;
- for (c = *end; c != '\0'; c = *++end)
- if (c != thousands && !isdigit (c) &&
- (!isalpha (c) || toupper (c) - 'A' + 10 >= base))
+ for (c = *end; c != L_('\0'); c = *++end)
+ if ((wchar_t) c != thousands
+ && ((wchar_t) c < L_('0') || (wchar_t) c > L_('9'))
+ && (!ISALPHA (c) || (int) (TOUPPER (c) - L_('A') + 10) >= base))
break;
if (*s == thousands)
end = s;
#endif
end = NULL;
- cutoff = ULONG_MAX / (unsigned LONG int) base;
- cutlim = ULONG_MAX % (unsigned LONG int) base;
+ cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base;
+ cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base;
overflow = 0;
i = 0;
- for (c = *s; c != '\0'; c = *++s)
+ for (c = *s; c != L_('\0'); c = *++s)
{
if (s == end)
break;
- if (isdigit (c))
- c -= '0';
- else if (isalpha (c))
- c = toupper (c) - 'A' + 10;
+ if (c >= L_('0') && c <= L_('9'))
+ c -= L_('0');
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
else
break;
- if (c >= base)
+ if ((int) c >= base)
break;
/* Check for overflow. */
if (i > cutoff || (i == cutoff && c > cutlim))
/* Store in ENDPTR the address of one character
past the last character we converted. */
if (endptr != NULL)
- *endptr = (char *) s;
+ *endptr = (STRING_TYPE *) s;
#if !UNSIGNED
/* Check for a value that is within the range of
`unsigned LONG int', but outside the range of `LONG int'. */
- if (i > (negative ?
- -(unsigned LONG int) LONG_MIN : (unsigned LONG int) LONG_MAX))
+ if (overflow == 0
+ && i > (negative
+ ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
+ : (unsigned LONG int) STRTOL_LONG_MAX))
overflow = 1;
#endif
if (overflow)
{
- errno = ERANGE;
+ __set_errno (ERANGE);
#if UNSIGNED
- return ULONG_MAX;
+ return STRTOL_ULONG_MAX;
#else
- return negative ? LONG_MIN : LONG_MAX;
+ return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX;
#endif
}
/* Return the result of the appropriate sign. */
- return (negative ? -i : i);
+ return negative ? -i : i;
noconv:
- /* There was no number to convert. */
+ /* We must handle a special case here: the base is 0 or 16 and the
+ first two characters are '0' and 'x', but the rest are no
+ hexadecimal digits. This is no error case. We return 0 and
+ ENDPTR points to the `x`. */
if (endptr != NULL)
- *endptr = (char *) nptr;
+ {
+ if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')
+ && save[-2] == L_('0'))
+ *endptr = (STRING_TYPE *) &save[-1];
+ else
+ /* There was no number to convert. */
+ *endptr = (STRING_TYPE *) nptr;
+ }
+
return 0L;
}
\f
/* External user entry point. */
-#ifdef weak_symbol
-weak_symbol (strtol)
+#if _LIBC - 0 == 0
+# undef PARAMS
+# if defined (__STDC__) && __STDC__
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif
+
+/* Prototype. */
+INT strtol PARAMS ((const STRING_TYPE *nptr, STRING_TYPE **endptr, int base));
#endif
+
INT
-strtol (nptr, endptr, base)
- const char *nptr;
- char **endptr;
+#ifdef weak_function
+weak_function
+#endif
+strtol (nptr, endptr, base LOCALE_PARAM)
+ const STRING_TYPE *nptr;
+ STRING_TYPE **endptr;
int base;
+ LOCALE_PARAM_DECL
{
- return INTERNAL (strtol) (nptr, endptr, base, 0);
+ return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
}