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Diff for /OpenXM_contrib/gmp/mpfr/Attic/set_str_raw.c between version 1.1.1.1 and 1.1.1.2

version 1.1.1.1, 2000/09/09 14:12:19 version 1.1.1.2, 2003/08/25 16:06:07
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 /* mpfr_set_str_raw -- set a floating-point number from a binary string  /* mpfr_set_str_raw -- set a floating-point number from a binary string
   
 Copyright (C) 1999 PolKA project, Inria Lorraine and Loria  Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
   
 This file is part of the MPFR Library.  This file is part of the MPFR Library.
   
 The MPFR Library is free software; you can redistribute it and/or modify  The MPFR 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  it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation; either version 2 of the License, or (at your  the Free Software Foundation; either version 2.1 of the License, or (at your
 option) any later version.  option) any later version.
   
 The MPFR Library is distributed in the hope that it will be useful, but  The MPFR Library is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 License for more details.  License for more details.
   
 You should have received a copy of the GNU Library General Public License  You should have received a copy of the GNU Lesser General Public License
 along with the MPFR Library; see the file COPYING.LIB.  If not, write to  along with the MPFR Library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,  the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 MA 02111-1307, USA. */  MA 02111-1307, USA. */
   
 #include <stdio.h>  #include <stdio.h>
 #include <stdlib.h>  #include <stdlib.h>
 #ifdef HAS_STRING_H  
 #include <string.h>  #include <string.h>
 #else  
 #include <strings.h>  
 #endif  
 #include "gmp.h"  #include "gmp.h"
 #include "gmp-impl.h"  #include "gmp-impl.h"
 #include "longlong.h"  #include "longlong.h"
 #include "mpfr.h"  #include "mpfr.h"
   #include "mpfr-impl.h"
   
 /* Currently the number should be of the form +/- xxxx.xxxxxxEyy, with  /* Currently the number should be of the form +/- xxxx.xxxxxxEyy, with
    decimal exponent. The mantissa of x is supposed to be large enough     decimal exponent. The mantissa of x is supposed to be large enough
    to hold all the bits of str. */     to hold all the bits of str. */
   
 void  void
 #if __STDC__  mpfr_set_str_raw (mpfr_ptr x, char *str)
 mpfr_set_str_raw(mpfr_ptr x, char *str)  
 #else  
 mpfr_set_str_raw(x, str)  
      mpfr_ptr x;  
      char *str;  
 #endif  
 {  {
   char *str2, *str0, negative = 0;    char *str2, *str0, negative = 0;
   unsigned long j, l, k = 0, xsize, cnt; mp_limb_t *xp;    unsigned long j, l, k = 0, xsize, cnt, alloc; mp_limb_t *xp;
   long expn = 0, e; char *endstr2;    long expn = 0, e; char *endstr2;
   
   xp = x -> _mp_d;    xp = MPFR_MANT(x);
   xsize = 1 + (PREC(x)-1)/BITS_PER_MP_LIMB;    xsize = 1 + (MPFR_PREC(x) - 1) / BITS_PER_MP_LIMB;
   str0 = str2 = (char *) malloc((strlen(str)+1)*sizeof(char));    alloc = (strlen(str) + 1) * sizeof(char);
   
   if (*str == '-') { negative = 1; str++; }    if (*str == '-')
   else if (*str == '+') str++;      {
         negative = 1;
         str++;
       }
     else if (*str == '+')
       str++;
   
     if (*str == 'N')
       {
         MPFR_SET_NAN(x);
         __mpfr_flags |= MPFR_FLAGS_NAN;
         return;
       }
   
     if (*str == 'I')
       {
         MPFR_CLEAR_NAN(x);
         MPFR_SET_INF(x);
         if (MPFR_ISNEG(x) != negative)
           MPFR_CHANGE_SIGN(x);
         return;
       }
   
     MPFR_CLEAR_FLAGS(x);
   
     str0 = str2 = (char *) (*__gmp_allocate_func) (alloc);
   
   while (*str == '0') { str++; }    while (*str == '0') { str++; }
   
   while (*str == '0' || *str == '1')    while (*str == '0' || *str == '1')
Line 81  mpfr_set_str_raw(x, str)
Line 97  mpfr_set_str_raw(x, str)
   else expn=k;    else expn=k;
   
   endstr2 = str2;    endstr2 = str2;
   *str2 = (char) 0; /* end of string */    l = endstr2 - str0; /* length of mantissa */
   l = (strlen(str0) - 1) / BITS_PER_MP_LIMB + 1; str2 = str0;    if (l == 0) { /* input is zero */
       MPFR_SET_ZERO(x);
     }
     else {
       l = (l - 1) / BITS_PER_MP_LIMB + 1;
       str2 = str0;
   
   /* str2[0]..endstr2[-1] contains the mantissa */      if (l > xsize) {
   for (k = 1; k <= l; k++)        fprintf (stderr, "Error: mantissa larger than precision of destination variable in mpfr_set_str_raw\n");
     {        exit (1);
       j = 0;  
       xp[xsize - k] = 0;  
       while (str2<endstr2 && j < BITS_PER_MP_LIMB)  
         {  
           xp[xsize - k] = (xp[xsize - k] << 1) + (*str2 - '0');  
           str2++; j++;  
         }  
       xp[xsize - k] <<= (BITS_PER_MP_LIMB - j);  
     }      }
   
   for (; k <= xsize; k++) { xp[xsize - k] = 0; }      /* str2[0]..endstr2[-1] contains the mantissa */
       for (k = 1; k <= l; k++)
         {
           j = 0;
           xp[xsize - k] = 0;
           while ((str2 < endstr2) && (j < BITS_PER_MP_LIMB))
             {
               xp[xsize - k] = (xp[xsize - k] << 1) + (*str2 - '0');
               str2++; j++;
             }
           xp[xsize - k] <<= (BITS_PER_MP_LIMB - j);
         }
   
   count_leading_zeros(cnt, xp[xsize - 1]);      for (; k <= xsize; k++) { xp[xsize - k] = 0; }
   if (cnt) mpn_lshift(xp, xp, xsize, cnt);  
   
   x -> _mp_exp = expn - cnt;      count_leading_zeros(cnt, xp[xsize - 1]);
   x -> _mp_size = xsize; if (negative) CHANGE_SIGN(x);      if (cnt) mpn_lshift(xp, xp, xsize, cnt);
   
   free(str0);      MPFR_EXP(x) = expn - cnt;
       if (MPFR_ISNEG(x) != negative)
         MPFR_CHANGE_SIGN(x);
     }
   
     (*__gmp_free_func) (str0, alloc);
   
   /* May change to take into account : syntax errors, overflow in exponent,    /* May change to take into account : syntax errors, overflow in exponent,
      string truncated because of size of x */       string truncated because of size of x */
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Removed from v.1.1.1.1  
changed lines
  Added in v.1.1.1.2
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