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authorUlrich Drepper <drepper@redhat.com>1999-05-25 13:26:48 +0000
committerUlrich Drepper <drepper@redhat.com>1999-05-25 13:26:48 +0000
commit03197d471033c3d3da50108461ec4dc5aab069fa (patch)
tree8e743cc9b2ef3827d1e8b2674936ccdae63b4016 /sysdeps/generic/strtol.c
parent6e26ce8e824cc7e996c37864a4c8a6cffbb5bf91 (diff)
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Update.
1999-05-25  Ulrich Drepper  <drepper@cygnus.com>

	* stdlib/strtol.c: Moved to ...
	* sysdeps/generic/strtol.c: ...here.
	* stdlib/strtoul.c: Moved to ...
	* sysdeps/generic/strtoul.c: ...here.
	* stdlib/strtoll.c: Moved to ...
	* sysdeps/generic/strtoll.c: ...here.
	* stdlib/strtoull.c: Moved to ...
	* sysdeps/generic/strtoull.c: ...here.
	* stdlib/strtol_l.c: Moved to ...
	* sysdeps/generic/strtol_l.c: ...here.
	* stdlib/strtoul_l.c: Moved to ...
	* sysdeps/generic/strtoul_l.c: ...here.
	* stdlib/strtoll_l.c: Moved to ...
	* sysdeps/generic/strtoll_l.c: ...here.
	* stdlib/strtoull_l.c: Moved to ...
	* sysdeps/generic/strtoull_l.c: ...here.

	* sysdeps/wordexp-64/strtol.c: New file.
	* sysdeps/wordexp-64/strtoul.c: New file.
	* sysdeps/wordexp-64/strtoll.c: New file.
	* sysdeps/wordexp-64/strtoull.c: New file.
	* sysdeps/wordexp-64/strtol_l.c: New file.
	* sysdeps/wordexp-64/strtoul_l.c: New file.
	* sysdeps/wordexp-64/strtoll_l.c: New file.
	* sysdeps/wordexp-64/strtoull_l.c: New file.
Diffstat (limited to 'sysdeps/generic/strtol.c')
-rw-r--r--sysdeps/generic/strtol.c481
1 files changed, 481 insertions, 0 deletions
diff --git a/sysdeps/generic/strtol.c b/sysdeps/generic/strtol.c
new file mode 100644
index 0000000000..6ba2960f29
--- /dev/null
+++ b/sysdeps/generic/strtol.c
@@ -0,0 +1,481 @@
+/* Convert string representation of a number into an integer value.
+   Copyright (C) 1991,92,94,95,96,97,98,99 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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.
+
+   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.
+
+   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., 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 errno
+extern int errno;
+#endif
+#ifndef __set_errno
+# define __set_errno(Val) errno = (Val)
+#endif
+
+#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
+# endif
+#endif
+
+#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.  */
+#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
+#  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
+#  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
+# define STRTOL_LONG_MIN LONG_LONG_MIN
+# define STRTOL_LONG_MAX LONG_LONG_MAX
+# define STRTOL_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 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 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
+#  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
+
+#ifdef __STDC__
+# 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
+/* 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.  */
+
+INT
+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 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 = L'\0';
+  /* 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 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;
+	}
+    }
+  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 (*s == L_('\0'))
+    goto noconv;
+
+  /* Check for a sign.  */
+  if (*s == L_('-'))
+    {
+      negative = 1;
+      ++s;
+    }
+  else if (*s == L_('+'))
+    {
+      negative = 0;
+      ++s;
+    }
+  else
+    negative = 0;
+
+  /* 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 (group)
+    {
+      /* Find the end of the digit string and check its grouping.  */
+      end = s;
+      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;
+      else
+	end = correctly_grouped_prefix (s, end, thousands, grouping);
+    }
+  else
+#endif
+    end = NULL;
+
+  cutoff = STRTOL_ULONG_MAX / (unsigned LONG int) base;
+  cutlim = STRTOL_ULONG_MAX % (unsigned LONG int) base;
+
+  overflow = 0;
+  i = 0;
+  c = *s;
+  if (sizeof (long int) != sizeof (LONG int))
+    {
+      unsigned long int j = 0;
+
+      for (;c != L_('\0'); c = *++s)
+	{
+	  if (s == end)
+	    break;
+	  if (c >= L_('0') && c <= L_('9'))
+	    c -= L_('0');
+	  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
+	    {
+	      unsigned long int jj = j * (unsigned long int) base;
+	      if (jj < j)
+		{
+		  /* We have an overflow.  Now use the long representation.  */
+		  i = (unsigned LONG int) j;
+		  goto use_long;
+		}
+	      j = jj;
+	      j += 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');
+	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 (overflow)
+    {
+      __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;
+}
+
+/* External user entry point.  */
+
+#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
+#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 LOCALE_PARAM);
+}