-/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1992, 1994, 1995 Free Software Foundation, Inc.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ 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.
-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
-Library General Public License for more details.
+ 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.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifdef 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 errno
+extern int errno;
+#endif
#if HAVE_LIMITS_H
-#include <limits.h>
+# include <limits.h>
#endif
-#ifndef ULONG_MAX
-#define LONG_MAX (~(1 << (sizeof (long) * 8 - 1)))
-#define LONG_MIN (-LONG_MAX-1)
-#define ULONG_MAX ((unsigned long) ~(unsigned long) 0)
+
+#ifdef STDC_HEADERS
+# include <stddef.h>
+# include <stdlib.h>
+#else
+# ifndef NULL
+# define NULL 0
+# endif
+#endif
+
+#ifdef USE_NUMBER_GROUPING
+# include "../locale/localeinfo.h"
#endif
-#if STDC_HEADERS
-#include <stddef.h>
-#include <stdlib.h>
+/* Nonzero if we are defining `strtoul' or `strtouq', operating on
+ unsigned integers. */
+#ifndef UNSIGNED
+# define UNSIGNED 0
+# define INT LONG int
#else
-#define NULL 0
-extern int errno;
+# 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
+# if UNSIGNED
+# define strtoul strtouq
+# else
+# define strtol strtoq
+# endif
+# 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
+# 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
+# endif
+#else
+# define LONG long
#endif
-#if !__STDC__
-#define const
+#ifdef __STDC__
+# define INTERNAL(x) INTERNAL1(x)
+# define INTERNAL1(x) __##x##_internal
+#else
+# define INTERNAL(x) __/**/x/**/_internal
#endif
-#ifndef UNSIGNED
-#define UNSIGNED 0
+#ifdef USE_NUMBER_GROUPING
+/* This file defines a function to check for correct grouping. */
+# include "grouping.h"
#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. */
-#if UNSIGNED
-unsigned long int
-#define strtol strtoul
-#else
-long int
-#endif
-strtol (nptr, endptr, base)
+
+INT
+INTERNAL (strtol) (nptr, endptr, base, group)
const char *nptr;
char **endptr;
int base;
+ int group;
{
int negative;
- register unsigned long int cutoff;
+ register unsigned LONG int cutoff;
register unsigned int cutlim;
- register unsigned long int i;
+ register unsigned LONG int i;
register const char *s;
register unsigned char c;
- const char *save;
+ const char *save, *end;
int overflow;
+#ifdef USE_NUMBER_GROUPING
+ /* The thousands character of the current locale. */
+ wchar_t thousands;
+ /* The numeric grouping specification of the current locale,
+ in the format described in <locale.h>. */
+ const char *grouping;
+
+ if (group)
+ {
+ grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+ if (*grouping <= 0 || *grouping == CHAR_MAX)
+ grouping = NULL;
+ 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 (thousands == L'\0')
+ grouping = NULL;
+ }
+ }
+ else
+ grouping = NULL;
+#endif
+
if (base < 0 || base == 1 || base > 36)
base = 10;
/* 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;
- }
+ if (*s == '0')
+ {
+ if (toupper (s[1]) == 'X')
+ {
+ s += 2;
+ base = 16;
+ }
+ else
+ base = 8;
+ }
+ else
+ base = 10;
/* Save the pointer so we can check later if anything happened. */
save = s;
- cutoff = ULONG_MAX / (unsigned long int) base;
- cutlim = ULONG_MAX % (unsigned long int) base;
+#ifdef USE_NUMBER_GROUPING
+ if (group)
+ {
+ /* 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))
+ break;
+ if (*s == thousands)
+ end = s;
+ else
+ end = correctly_grouped_prefix (s, end, thousands, grouping);
+ }
+ else
+#endif
+ end = NULL;
+
+ cutoff = ULONG_MAX / (unsigned LONG int) base;
+ cutlim = ULONG_MAX % (unsigned LONG int) base;
overflow = 0;
i = 0;
for (c = *s; c != '\0'; c = *++s)
{
+ if (s == end)
+ break;
if (isdigit (c))
c -= '0';
else if (isalpha (c))
overflow = 1;
else
{
- i *= (unsigned long int) base;
+ i *= (unsigned LONG int) base;
i += c;
}
}
if (endptr != NULL)
*endptr = (char *) s;
-#if !UNSIGNED
+#if !UNSIGNED
/* Check for a value that is within the range of
- `unsigned long int', but outside the range of `long int'. */
+ `unsigned LONG int', but outside the range of `LONG int'. */
if (i > (negative ?
- - (unsigned long int) LONG_MIN : (unsigned long int) LONG_MAX))
+ -(unsigned LONG int) LONG_MIN : (unsigned LONG int) LONG_MAX))
overflow = 1;
#endif
if (overflow)
{
errno = ERANGE;
-#if UNSIGNED
+#if UNSIGNED
return ULONG_MAX;
#else
return negative ? LONG_MIN : LONG_MAX;
}
/* Return the result of the appropriate sign. */
- return (negative ? - i : i);
+ return (negative ? -i : i);
-noconv:;
+noconv:
/* There was no number to convert. */
if (endptr != NULL)
*endptr = (char *) nptr;
return 0L;
}
+\f
+/* External user entry point. */
+
+#ifdef weak_symbol
+weak_symbol (strtol)
+#endif
+
+INT
+strtol (nptr, endptr, base)
+ const char *nptr;
+ char **endptr;
+ int base;
+{
+ return INTERNAL (strtol) (nptr, endptr, base, 0);
+}
projects / gnulib.git / blobdiff