[gcc] GCC 4.5.0=>4.5.1

gcc/gmp/mpz/set_str.c

-/* mpz_set_str(mp_dest, string, base) -- Convert the \0-terminated
-   string STRING in base BASE to multiple precision integer in
-   MP_DEST.  Allow white space in the string.  If BASE == 0 determine
-   the base in the C standard way, i.e.  0xhh...h means base 16,
-   0oo...o means base 8, otherwise assume base 10.
-
-Copyright 1991, 1993, 1994, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005
-Free Software Foundation, Inc.
-
-This file is part of the GNU MP Library.
-
-The GNU MP 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 3 of the License, or (at your
-option) any later version.
-
-The GNU MP 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 MP Library.  If not, see http://www.gnu.org/licenses/.  */
-
-#include <string.h>
-#include <ctype.h>
-#include "gmp.h"
-#include "gmp-impl.h"
-
-extern const unsigned char __gmp_digit_value_tab[];
-#define digit_value_tab __gmp_digit_value_tab
-
-int
-mpz_set_str (mpz_ptr x, const char *str, int base)
-{
-  size_t str_size;
-  char *s, *begs;
-  size_t i;
-  mp_size_t xsize;
-  int c;
-  int negative;
-  const unsigned char *digit_value;
-  TMP_DECL;
-
-  digit_value = digit_value_tab;
-  if (base > 36)
-    {
-      /* For bases > 36, use the collating sequence
-         0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.  */
-      digit_value += 224;
-      if (base > 62)
-        return -1;              /* too large base */
-    }
-
-  /* Skip whitespace.  */
-  do
-    c = (unsigned char) *str++;
-  while (isspace (c));
-
-  negative = 0;
-  if (c == '-')
-    {
-      negative = 1;
-      c = (unsigned char) *str++;
-    }
-
-  if (digit_value[c] >= (base == 0 ? 10 : base))
-    return -1;                  /* error if no valid digits */
-
-  /* If BASE is 0, try to find out the base by looking at the initial
-     characters.  */
-  if (base == 0)
-    {
-      base = 10;
-      if (c == '0')
-        {
-          base = 8;
-          c = (unsigned char) *str++;
-          if (c == 'x' || c == 'X')
-            {
-              base = 16;
-              c = (unsigned char) *str++;
-            }
-          else if (c == 'b' || c == 'B')
-            {
-              base = 2;
-              c = (unsigned char) *str++;
-            }
-        }
-    }
-
-  /* Skip leading zeros and white space.  */
-  while (c == '0' || isspace (c))
-    c = (unsigned char) *str++;
-  /* Make sure the string does not become empty, mpn_set_str would fail.  */
-  if (c == 0)
-    {
-      x->_mp_size = 0;
-      return 0;
-    }
-
-  TMP_MARK;
-  str_size = strlen (str - 1);
-  s = begs = (char *) TMP_ALLOC (str_size + 1);
-
-  /* Remove spaces from the string and convert the result from ASCII to a
-     byte array.  */
-  for (i = 0; i < str_size; i++)
-    {
-      if (!isspace (c))
-        {
-          int dig = digit_value[c];
-          if (dig >= base)
-            {
-              TMP_FREE;
-              return -1;
-            }
-          *s++ = dig;
-        }
-      c = (unsigned char) *str++;
-    }
-
-  str_size = s - begs;
-
-  xsize = (((mp_size_t) (str_size / __mp_bases[base].chars_per_bit_exactly))
-           / GMP_NUMB_BITS + 2);
-  MPZ_REALLOC (x, xsize);
-
-  /* Convert the byte array in base BASE to our bignum format.  */
-  xsize = mpn_set_str (x->_mp_d, (unsigned char *) begs, str_size, base);
-  x->_mp_size = negative ? -xsize : xsize;
-
-  TMP_FREE;
-  return 0;
-}