hash: relax license to LGPLv2+, for libguestfs

[gnulib.git] / lib / strtol.c

diff --git a/lib/strtol.c b/lib/strtol.c
index 0c9c276..379eda8 100644 (file)
--- a/lib/strtol.c
+++ b/lib/strtol.c
@@ -1,11 +1,14 @@
 /* Convert string representation of a number into an integer value.
 /* Convert string representation of a number into an integer value.

-   Copyright (C) 1991, 92, 94, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
+
+   Copyright (C) 1991-1992, 1994-1999, 2003, 2005-2007, 2009-2013 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.
 
    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
    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,
    later version.
 
    This program is distributed in the hope that it will be useful,


@@ -14,47 +17,30 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    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
 
 #ifdef _LIBC
 # define USE_NUMBER_GROUPING

-# define STDC_HEADERS
-# define HAVE_LIMITS_H
+#else
+# include <config.h>

 #endif
 
 #include <ctype.h>
 #include <errno.h>
 #endif
 
 #include <ctype.h>
 #include <errno.h>

-#ifndef errno
-extern int errno;
-#endif

 #ifndef __set_errno
 # define __set_errno(Val) errno = (Val)
 #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
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>

 
 #ifdef USE_NUMBER_GROUPING
 # include "../locale/localeinfo.h"
 #endif
 
 
 #ifdef USE_NUMBER_GROUPING
 # include "../locale/localeinfo.h"
 #endif
 

-/* Nonzero if we are defining `strtoul' or `strtoull', operating on
+/* Nonzero if we are defining 'strtoul' or 'strtoull', operating on

    unsigned integers.  */
 #ifndef UNSIGNED
 # define UNSIGNED 0
    unsigned integers.  */
 #ifndef UNSIGNED
 # define UNSIGNED 0


@@ -124,53 +110,61 @@ extern int errno;
 # endif
 #endif
 
 # endif
 #endif
 

-/* If QUAD is defined, we are defining `strtoll' or `strtoull',
-   operating on `long long int's.  */
+/* If QUAD is defined, we are defining 'strtoll' or 'strtoull',
+   operating on 'long long int's.  */

 #ifdef QUAD
 # define LONG long long
 #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
-
-/* 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)
+# define STRTOL_LONG_MIN LLONG_MIN
+# define STRTOL_LONG_MAX LLONG_MAX
+# define STRTOL_ULONG_MAX ULLONG_MAX
+
+/* 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 \
+         : ~ TYPE_MAXIMUM (t)))
+# define TYPE_MAXIMUM(t) \
+   ((t) (! TYPE_SIGNED (t) \
+         ? (t) -1 \
+         : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1)))
+
+# ifndef ULLONG_MAX
+#  define ULLONG_MAX TYPE_MAXIMUM (unsigned long long)

 # endif
 # endif

-# ifndef LONG_LONG_MAX
-#  define LONG_LONG_MAX TYPE_MAXIMUM (long long int)
+# ifndef LLONG_MAX
+#  define LLONG_MAX TYPE_MAXIMUM (long long int)

 # endif
 # endif

-# ifndef LONG_LONG_MIN
-#  define LONG_LONG_MIN TYPE_MINIMUM (long long int)
+# ifndef LLONG_MIN
+#  define LLONG_MIN TYPE_MINIMUM (long long int)

 # endif
 
 # if __GNUC__ == 2 && __GNUC_MINOR__ < 7
    /* Work around gcc bug with using this constant.  */
 # 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;
+   static const unsigned long long int maxquad = ULLONG_MAX;

 #  undef STRTOL_ULONG_MAX
 #  define STRTOL_ULONG_MAX maxquad
 # endif
 #else
 # define LONG long
 #  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
 # define STRTOL_LONG_MIN LONG_MIN
 # define STRTOL_LONG_MAX LONG_MAX
 # define STRTOL_ULONG_MAX ULONG_MAX


@@ -186,17 +180,14 @@ extern int errno;
 # define _NL_CURRENT(category, item) \
   (current->values[_NL_ITEM_INDEX (item)].string)
 # define LOCALE_PARAM , loc
 # 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
 #else
 # define LOCALE_PARAM

-# define LOCALE_PARAM_DECL
-#endif
-
-#if defined _LIBC || defined HAVE_WCHAR_H
-# include <wchar.h>
+# define LOCALE_PARAM_PROTO

 #endif
 
 #ifdef USE_WIDE_CHAR
 #endif
 
 #ifdef USE_WIDE_CHAR

+# include <wchar.h>

 # include <wctype.h>
 # define L_(Ch) L##Ch
 # define UCHAR_TYPE wint_t
 # include <wctype.h>
 # define L_(Ch) L##Ch
 # define UCHAR_TYPE wint_t


@@ -211,11 +202,6 @@ extern int errno;
 #  define TOUPPER(Ch) towupper (Ch)
 # endif
 #else
 #  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 L_(Ch) Ch
 # define UCHAR_TYPE unsigned char
 # define STRING_TYPE char


@@ -224,21 +210,15 @@ extern int errno;
 #  define ISALPHA(Ch) __isalpha_l ((Ch), loc)
 #  define TOUPPER(Ch) __toupper_l ((Ch), loc)
 # else
 #  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
 
 # 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
+#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.  */
 
 #ifdef USE_NUMBER_GROUPING
 /* This file defines a function to check for correct grouping.  */


@@ -247,7 +227,7 @@ extern int errno;
 
 
 
 
 
 

-/* Convert NPTR to an `unsigned long int' or `long int' in base BASE.
+/* 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 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.


@@ -255,12 +235,8 @@ extern int errno;
    one converted is stored in *ENDPTR.  */
 
 INT
    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
+INTERNAL (strtol) (const STRING_TYPE *nptr, STRING_TYPE **endptr,
+                   int base, int group LOCALE_PARAM_PROTO)

 {
   int negative;
   register unsigned LONG int cutoff;
 {
   int negative;
   register unsigned LONG int cutoff;


@@ -285,18 +261,18 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
     {
       grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
       if (*grouping <= 0 || *grouping == CHAR_MAX)
     {
       grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
       if (*grouping <= 0 || *grouping == CHAR_MAX)

-       grouping = NULL;
+        grouping = NULL;

       else
       else

-       {
-         /* Figure out the thousands separator character.  */
+        {
+          /* Figure out the thousands separator character.  */

 # if defined _LIBC || defined _HAVE_BTOWC
 # if defined _LIBC || defined _HAVE_BTOWC

-         thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP));
-         if (thousands == WEOF)
-           thousands = L'\0';
+          thousands = __btowc (*_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP));
+          if (thousands == WEOF)
+            thousands = L'\0';

 # endif
 # endif

-         if (thousands == L'\0')
-           grouping = NULL;
-       }
+          if (thousands == L'\0')
+            grouping = NULL;
+        }

     }
   else
     grouping = NULL;
     }
   else
     grouping = NULL;


@@ -334,12 +310,12 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
   if (*s == L_('0'))
     {
       if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))
   if (*s == L_('0'))
     {
       if ((base == 0 || base == 16) && TOUPPER (s[1]) == L_('X'))

-       {
-         s += 2;
-         base = 16;
-       }
+        {
+          s += 2;
+          base = 16;
+        }

       else if (base == 0)
       else if (base == 0)

-       base = 8;
+        base = 8;

     }
   else if (base == 0)
     base = 10;
     }
   else if (base == 0)
     base = 10;


@@ -353,14 +329,14 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
       /* Find the end of the digit string and check its grouping.  */
       end = s;
       for (c = *end; c != L_('\0'); c = *++end)
       /* 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 ((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)
       if (*s == thousands)

-       end = s;
+        end = s;

       else
       else

-       end = correctly_grouped_prefix (s, end, thousands, grouping);
+        end = correctly_grouped_prefix (s, end, thousands, grouping);

     }
   else
 #endif
     }
   else
 #endif


@@ -374,23 +350,23 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
   for (c = *s; c != L_('\0'); c = *++s)
     {
       if (s == end)
   for (c = *s; c != L_('\0'); c = *++s)
     {
       if (s == end)

-       break;
+        break;

       if (c >= L_('0') && c <= L_('9'))
       if (c >= L_('0') && c <= L_('9'))

-       c -= L_('0');
+        c -= L_('0');

       else if (ISALPHA (c))
       else if (ISALPHA (c))

-       c = TOUPPER (c) - L_('A') + 10;
+        c = TOUPPER (c) - L_('A') + 10;

       else
       else

-       break;
+        break;

       if ((int) c >= base)
       if ((int) c >= base)

-       break;
+        break;

       /* Check for overflow.  */
       if (i > cutoff || (i == cutoff && c > cutlim))
       /* Check for overflow.  */
       if (i > cutoff || (i == cutoff && c > cutlim))

-       overflow = 1;
+        overflow = 1;

       else
       else

-       {
-         i *= (unsigned LONG int) base;
-         i += c;
-       }
+        {
+          i *= (unsigned LONG int) base;
+          i += c;
+        }

     }
 
   /* Check if anything actually happened.  */
     }
 
   /* Check if anything actually happened.  */


@@ -404,11 +380,11 @@ INTERNAL (strtol) (nptr, endptr, base, group LOCALE_PARAM)
 
 #if !UNSIGNED
   /* Check for a value that is within the range of
 
 #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 (overflow == 0
       && i > (negative
   if (overflow == 0
       && i > (negative

-             ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
-             : (unsigned LONG int) STRTOL_LONG_MAX))
+              ? -((unsigned LONG int) (STRTOL_LONG_MIN + 1)) + 1
+              : (unsigned LONG int) STRTOL_LONG_MAX))

     overflow = 1;
 #endif
 
     overflow = 1;
 #endif
 


@@ -429,15 +405,15 @@ 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
   /* 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`.  */
+     ENDPTR points to the 'x'.  */

   if (endptr != NULL)
     {
       if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')
   if (endptr != NULL)
     {
       if (save - nptr >= 2 && TOUPPER (save[-1]) == L_('X')

-         && save[-2] == L_('0'))
-       *endptr = (STRING_TYPE *) &save[-1];
+          && save[-2] == L_('0'))
+        *endptr = (STRING_TYPE *) &save[-1];

       else
       else

-       /*  There was no number to convert.  */
-       *endptr = (STRING_TYPE *) nptr;
+        /*  There was no number to convert.  */
+        *endptr = (STRING_TYPE *) nptr;

     }
 
   return 0L;
     }
 
   return 0L;


@@ -445,28 +421,13 @@ noconv:
 \f
 /* External user entry point.  */
 
 \f
 /* 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
 
 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
+strtol (const STRING_TYPE *nptr, STRING_TYPE **endptr,
+        int base LOCALE_PARAM_PROTO)

 {
   return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
 }
 {
   return INTERNAL (strtol) (nptr, endptr, base, 0 LOCALE_PARAM);
 }