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-rw-r--r--stdlib/strtol_l.c557
1 files changed, 557 insertions, 0 deletions
diff --git a/stdlib/strtol_l.c b/stdlib/strtol_l.c
new file mode 100644
index 0000000..156083c
--- /dev/null
+++ b/stdlib/strtol_l.c
@@ -0,0 +1,557 @@
+/* Convert string representing a number to integer value, using given locale.
+ Copyright (C) 1997, 2002, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; 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
+
+#ifdef _LIBC
+# define USE_NUMBER_GROUPING
+# define STDC_HEADERS
+# define HAVE_LIMITS_H
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#ifndef __set_errno
+# define __set_errno(Val) errno = (Val)
+#endif
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <locale.h>
+#include <xlocale.h>
+#include <bits/wordsize.h>
+
+#ifdef USE_NUMBER_GROUPING
+# include "../locale/localeinfo.h"
+#endif
+
+/* Nonzero if we are defining `strtoul' or `strtoull', operating on
+ unsigned integers. */
+#ifndef UNSIGNED
+# define UNSIGNED 0
+# define INT LONG int
+#else
+# define INT unsigned LONG int
+#endif
+
+/* Determine the name. */
+#if UNSIGNED
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol_l wcstoull_l
+# else
+# define strtol_l wcstoul_l
+# endif
+# else
+# ifdef QUAD
+# define strtol_l strtoull_l
+# else
+# define strtol_l strtoul_l
+# endif
+# endif
+#else
+# ifdef USE_WIDE_CHAR
+# ifdef QUAD
+# define strtol_l wcstoll_l
+# else
+# define strtol_l wcstol_l
+# endif
+# else
+# ifdef QUAD
+# define strtol_l strtoll_l
+# else
+# define strtol_l strtol_l
+# endif
+# endif
+#endif
+
+#define __strtol_l __strtol_l2(strtol_l)
+#define __strtol_l2(name) __strtol_l3(name)
+#define __strtol_l3(name) __##name
+
+
+/* If QUAD is defined, we are defining `strtoll' or `strtoull',
+ operating on `long long int's. */
+#ifdef QUAD
+# define LONG long long
+# define STRTOL_LONG_MIN LONG_LONG_MIN
+# define STRTOL_LONG_MAX LONG_LONG_MAX
+# define STRTOL_ULONG_MAX ULONG_LONG_MAX
+#else
+# define LONG long
+
+# ifndef ULONG_MAX
+# define ULONG_MAX ((unsigned long int) ~(unsigned long int) 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 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 and
+ _NL_CURRENT_WORD macros. */
+#undef _NL_CURRENT
+#define _NL_CURRENT(category, item) \
+ (current->values[_NL_ITEM_INDEX (item)].string)
+#undef _NL_CURRENT_WORD
+#define _NL_CURRENT_WORD(category, item) \
+ ((uint32_t) current->values[_NL_ITEM_INDEX (item)].word)
+
+#if defined _LIBC || defined HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+
+#ifdef USE_WIDE_CHAR
+# include <wctype.h>
+# define L_(Ch) L##Ch
+# define UCHAR_TYPE wint_t
+# define STRING_TYPE wchar_t
+# define ISSPACE(Ch) __iswspace_l ((Ch), loc)
+# define ISALPHA(Ch) __iswalpha_l ((Ch), loc)
+# define TOUPPER(Ch) __towupper_l ((Ch), loc)
+#else
+# if defined _LIBC \
+ || 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 ISSPACE(Ch) __isspace_l ((Ch), loc)
+# define ISALPHA(Ch) __isalpha_l ((Ch), loc)
+# define TOUPPER(Ch) __toupper_l ((Ch), loc)
+#endif
+
+#define INTERNAL(X) INTERNAL1(X)
+#define INTERNAL1(X) __##X##_internal
+#define WEAKNAME(X) WEAKNAME1(X)
+
+#ifdef USE_NUMBER_GROUPING
+/* This file defines a function to check for correct grouping. */
+# include "grouping.h"
+#endif
+
+
+/* Define tables of maximum values and remainders in order to detect
+ overflow. Do this at compile-time in order to avoid the runtime
+ overhead of the division. */
+
+#define DEF(TYPE, NAME) \
+ const TYPE NAME[] attribute_hidden \
+ __attribute__((section(".gnu.linkonce.r." #NAME))) = \
+ { \
+ F(2), F(3), F(4), F(5), F(6), F(7), F(8), F(9), F(10), \
+ F(11), F(12), F(13), F(14), F(15), F(16), F(17), F(18), F(19), F(20), \
+ F(21), F(22), F(23), F(24), F(25), F(26), F(27), F(28), F(29), F(30), \
+ F(31), F(32), F(33), F(34), F(35), F(36) \
+ }
+
+#define F(X) ULONG_MAX / X
+ DEF (unsigned long, __strtol_ul_max_tab);
+#undef F
+#if defined(QUAD) && __WORDSIZE == 32
+# define F(X) ULONG_LONG_MAX / X
+ DEF (unsigned long long, __strtol_ull_max_tab);
+# undef F
+# define F(X) ULONG_LONG_MAX % X
+ DEF (unsigned char, __strtol_ull_rem_tab);
+# undef F
+#else
+# define F(X) ULONG_MAX % X
+ DEF (unsigned char, __strtol_ul_rem_tab);
+# undef F
+#endif
+#undef DEF
+
+/* Define some more readable aliases for these arrays which correspond
+ to how they'll be used in the function below. */
+#define jmax_tab __strtol_ul_max_tab
+#if defined(QUAD) && __WORDSIZE == 32
+# define cutoff_tab __strtol_ull_max_tab
+# define cutlim_tab __strtol_ull_rem_tab
+#else
+# define cutoff_tab __strtol_ul_max_tab
+# define cutlim_tab __strtol_ul_rem_tab
+#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.
+ If BASE is < 2 or > 36, it is reset to 10.
+ If ENDPTR is not NULL, a pointer to the character after the last
+ one converted is stored in *ENDPTR. */
+
+INT
+INTERNAL (__strtol_l) (nptr, endptr, base, group, loc)
+ const STRING_TYPE *nptr;
+ STRING_TYPE **endptr;
+ int base;
+ int group;
+ __locale_t loc;
+{
+ int negative;
+ register unsigned LONG int cutoff;
+ register unsigned int cutlim;
+ register unsigned LONG int i;
+ register const STRING_TYPE *s;
+ register UCHAR_TYPE c;
+ const STRING_TYPE *save, *end;
+ int overflow;
+#ifndef USE_WIDE_CHAR
+ size_t cnt;
+#endif
+
+#ifdef USE_NUMBER_GROUPING
+ struct locale_data *current = loc->__locales[LC_NUMERIC];
+ /* The thousands character of the current locale. */
+# ifdef USE_WIDE_CHAR
+ wchar_t thousands = L'\0';
+# else
+ const char *thousands = NULL;
+ size_t thousands_len = 0;
+# endif
+ /* The numeric grouping specification of the current locale,
+ in the format described in <locale.h>. */
+ const char *grouping;
+
+ if (__builtin_expect (group, 0))
+ {
+ grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+ if (*grouping <= 0 || *grouping == CHAR_MAX)
+ grouping = NULL;
+ else
+ {
+ /* Figure out the thousands separator character. */
+# ifdef USE_WIDE_CHAR
+# ifdef _LIBC
+ thousands = _NL_CURRENT_WORD (LC_NUMERIC,
+ _NL_NUMERIC_THOUSANDS_SEP_WC);
+# endif
+ if (thousands == L'\0')
+ grouping = NULL;
+# else
+# ifdef _LIBC
+ thousands = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
+# endif
+ if (*thousands == '\0')
+ {
+ thousands = NULL;
+ grouping = NULL;
+ }
+# endif
+ }
+ }
+ else
+ grouping = NULL;
+#endif
+
+ if (base < 0 || base == 1 || base > 36)
+ {
+ __set_errno (EINVAL);
+ return 0;
+ }
+
+ save = s = nptr;
+
+ /* Skip white space. */
+ while (ISSPACE (*s))
+ ++s;
+ if (__builtin_expect (*s == L_('\0'), 0))
+ goto noconv;
+
+ /* Check for a sign. */
+ negative = 0;
+ if (*s == L_('-'))
+ {
+ negative = 1;
+ ++s;
+ }
+ else if (*s == L_('+'))
+ ++s;
+
+ /* 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;
+
+#ifdef USE_NUMBER_GROUPING
+ if (base != 10)
+ grouping = NULL;
+
+ if (__builtin_expect (grouping != NULL, 0))
+ {
+# ifndef USE_WIDE_CHAR
+ thousands_len = strlen (thousands);
+# endif
+
+ /* Find the end of the digit string and check its grouping. */
+ end = s;
+ if (
+# ifdef USE_WIDE_CHAR
+ *s != thousands
+# else
+ ({ for (cnt = 0; cnt < thousands_len; ++cnt)
+ if (thousands[cnt] != end[cnt])
+ break;
+ cnt < thousands_len; })
+# endif
+ )
+ {
+ for (c = *end; c != L_('\0'); c = *++end)
+ if (((STRING_TYPE) c < L_('0') || (STRING_TYPE) c > L_('9'))
+# ifdef USE_WIDE_CHAR
+ && (wchar_t) c != thousands
+# else
+ && ({ for (cnt = 0; cnt < thousands_len; ++cnt)
+ if (thousands[cnt] != end[cnt])
+ break;
+ cnt < thousands_len; })
+# endif
+ && (!ISALPHA (c)
+ || (int) (TOUPPER (c) - L_('A') + 10) >= base))
+ break;
+
+# ifdef USE_WIDE_CHAR
+ end = __correctly_grouped_prefixwc (s, end, thousands, grouping);
+# else
+ end = __correctly_grouped_prefixmb (s, end, thousands, grouping);
+# endif
+ }
+ }
+ else
+#endif
+ end = NULL;
+
+ /* Avoid runtime division; lookup cutoff and limit. */
+ cutoff = cutoff_tab[base - 2];
+ cutlim = cutlim_tab[base - 2];
+
+ overflow = 0;
+ i = 0;
+ c = *s;
+ if (sizeof (long int) != sizeof (LONG int))
+ {
+ unsigned long int j = 0;
+ unsigned long int jmax = jmax_tab[base - 2];
+
+ for (;c != L_('\0'); c = *++s)
+ {
+ if (s == end)
+ break;
+ if (c >= L_('0') && c <= L_('9'))
+ c -= L_('0');
+#ifdef USE_NUMBER_GROUPING
+# ifdef USE_WIDE_CHAR
+ else if (grouping && (wchar_t) c == thousands)
+ continue;
+# else
+ else if (thousands_len)
+ {
+ for (cnt = 0; cnt < thousands_len; ++cnt)
+ if (thousands[cnt] != s[cnt])
+ break;
+ if (cnt == thousands_len)
+ {
+ s += thousands_len - 1;
+ continue;
+ }
+ if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
+ else
+ break;
+ }
+# endif
+#endif
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
+ else
+ break;
+ if ((int) c >= base)
+ break;
+ /* Note that we never can have an overflow. */
+ else if (j >= jmax)
+ {
+ /* We have an overflow. Now use the long representation. */
+ i = (unsigned LONG int) j;
+ goto use_long;
+ }
+ else
+ j = j * (unsigned long int) base + c;
+ }
+
+ i = (unsigned LONG int) j;
+ }
+ else
+ for (;c != L_('\0'); c = *++s)
+ {
+ if (s == end)
+ break;
+ if (c >= L_('0') && c <= L_('9'))
+ c -= L_('0');
+#ifdef USE_NUMBER_GROUPING
+# ifdef USE_WIDE_CHAR
+ else if (grouping && (wchar_t) c == thousands)
+ continue;
+# else
+ else if (thousands_len)
+ {
+ for (cnt = 0; cnt < thousands_len; ++cnt)
+ if (thousands[cnt] != s[cnt])
+ break;
+ if (cnt == thousands_len)
+ {
+ s += thousands_len - 1;
+ continue;
+ }
+ if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
+ else
+ break;
+ }
+# endif
+#endif
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - L_('A') + 10;
+ else
+ break;
+ if ((int) c >= base)
+ break;
+ /* Check for overflow. */
+ if (i > cutoff || (i == cutoff && c > cutlim))
+ overflow = 1;
+ else
+ {
+ use_long:
+ i *= (unsigned LONG int) base;
+ i += c;
+ }
+ }
+
+ /* Check if anything actually happened. */
+ if (s == save)
+ goto noconv;
+
+ /* Store in ENDPTR the address of one character
+ past the last character we converted. */
+ if (endptr != NULL)
+ *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 (overflow == 0
+ && i > (negative
+ ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
+ : (unsigned LONG int) STRTOL_LONG_MAX))
+ overflow = 1;
+#endif
+
+ if (__builtin_expect (overflow, 0))
+ {
+ __set_errno (ERANGE);
+#if UNSIGNED
+ return STRTOL_ULONG_MAX;
+#else
+ return negative ? STRTOL_LONG_MIN : STRTOL_LONG_MAX;
+#endif
+ }
+
+ /* Return the result of the appropriate sign. */
+ return negative ? -i : i;
+
+noconv:
+ /* 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)
+ {
+ 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;
+}
+#if defined _LIBC && !defined USE_WIDE_CHAR
+libc_hidden_def (INTERNAL (__strtol_l))
+#endif
+
+/* External user entry point. */
+
+#if _LIBC - 0 == 0
+# undef PARAMS
+# if defined (__STDC__) && __STDC__
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif
+
+/* Prototype. */
+extern INT __strtol_l PARAMS ((const STRING_TYPE *nptr, STRING_TYPE **endptr,
+ int base));
+#endif
+
+
+INT
+#ifdef weak_function
+weak_function
+#endif
+__strtol_l (nptr, endptr, base, loc)
+ const STRING_TYPE *nptr;
+ STRING_TYPE **endptr;
+ int base;
+ __locale_t loc;
+{
+ return INTERNAL (__strtol_l) (nptr, endptr, base, 0, loc);
+}
+weak_alias (__strtol_l, strtol_l)