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Diff for /OpenXM_contrib/gmp/mpbsd/Attic/mtox.c between version 1.1.1.2 and 1.1.1.3

version 1.1.1.2, 2000/09/09 14:13:17 version 1.1.1.3, 2003/08/25 16:06:37
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 /* mtox -- Convert OPERAND to hexadecimal and return a malloc'ed string  /* mtox -- Convert OPERAND to hexadecimal and return a malloc'ed string
    with the result of the conversion.     with the result of the conversion.
   
 Copyright (C) 1991, 1994, 2000 Free Software Foundation, Inc.  Copyright 1991, 1994, 2000, 2001, 2002 Free Software Foundation, Inc.
   
 This file is part of the GNU MP Library.  This file is part of the GNU MP Library.
   
Line 23  MA 02111-1307, USA. */
Line 23  MA 02111-1307, USA. */
 #include "mp.h"  #include "mp.h"
 #include "gmp.h"  #include "gmp.h"
 #include "gmp-impl.h"  #include "gmp-impl.h"
   #include "longlong.h"
   
 char *  char *
 #if __STDC__  
 mtox (const MINT *x)  mtox (const MINT *x)
 #else  
 mtox (x)  
      const MINT *x;  
 #endif  
 {  {
   mp_ptr xp;  
   mp_size_t xsize = x->_mp_size;    mp_size_t xsize = x->_mp_size;
     mp_ptr    xp;
   mp_size_t xsign;    mp_size_t xsign;
   unsigned char *str, *s;    unsigned char *str, *s;
   size_t str_size, i;    size_t str_size, alloc_size, i;
   int zeros;  
   char *num_to_text;  
   TMP_DECL (marker);  
   
   if (xsize == 0)  
     {  
       str = (unsigned char *) (*_mp_allocate_func) (2);  
       str[0] = '0';  
       str[1] = 0;  
       return (char *) str;  
     }  
   xsign = xsize;    xsign = xsize;
   if (xsize < 0)    if (xsize < 0)
     xsize = -xsize;      xsize = -xsize;
   
   TMP_MARK (marker);    /* digits, plus '\0', plus possible '-', for an exact size */
   str_size = ((size_t) (xsize * BITS_PER_MP_LIMB    xp = x->_mp_d;
                         * __mp_bases[16].chars_per_bit_exactly)) + 3;    MPN_SIZEINBASE_16 (alloc_size, xp, xsize);
   str = (unsigned char *) (*_mp_allocate_func) (str_size);    alloc_size += 1 + (xsign < 0);
   
     str = (unsigned char *) (*__gmp_allocate_func) (alloc_size);
   s = str;    s = str;
   
   if (xsign < 0)    if (xsign < 0)
     *s++ = '-';      *s++ = '-';
   
   /* Move the number to convert into temporary space, since mpn_get_str  
      clobbers its argument + needs one extra high limb....  */  
   xp = (mp_ptr) TMP_ALLOC ((xsize + 1) * BYTES_PER_MP_LIMB);  
   MPN_COPY (xp, x->_mp_d, xsize);  
   
   str_size = mpn_get_str (s, 16, xp, xsize);    str_size = mpn_get_str (s, 16, xp, xsize);
     ASSERT (str_size <= alloc_size - (xsign < 0));
     ASSERT (str_size == 1 || *s != 0);
   
   /* mpn_get_str might make some leading zeros.  Skip them.  */  
   for (zeros = 0; s[zeros] == 0; zeros++)  
     str_size--;  
   
   /* Translate to printable chars and move string down.  */  
   for (i = 0; i < str_size; i++)    for (i = 0; i < str_size; i++)
     s[i] = "0123456789abcdef"[s[zeros + i]];      s[i] = "0123456789abcdef"[s[i]];
   s[str_size] = 0;    s[str_size] = 0;
   
     ASSERT (strlen (str) + 1 == alloc_size);
   return (char *) str;    return (char *) str;
 }  }
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  Added in v.1.1.1.3
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