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Giac_maj/libtommath-0.39/bn_reverse.c 934 Bytes
6663b6c9   adorian   projet complet av...
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  #include <tommath.h>
  #ifdef BN_REVERSE_C
  /* LibTomMath, multiple-precision integer library -- Tom St Denis
   *
   * LibTomMath is a library that provides multiple-precision
   * integer arithmetic as well as number theoretic functionality.
   *
   * The library was designed directly after the MPI library by
   * Michael Fromberger but has been written from scratch with
   * additional optimizations in place.
   *
   * The library is free for all purposes without any express
   * guarantee it works.
   *
   * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
   */
  
  /* reverse an array, used for radix code */
  void
  bn_reverse (unsigned char *s, int len)
  {
    int     ix, iy;
    unsigned char t;
  
    ix = 0;
    iy = len - 1;
    while (ix < iy) {
      t     = s[ix];
      s[ix] = s[iy];
      s[iy] = t;
      ++ix;
      --iy;
    }
  }
  #endif
  
  /* $Source: /cvs/libtom/libtommath/bn_reverse.c,v $ */
  /* $Revision: 1.3 $ */
  /* $Date: 2006/03/31 14:18:44 $ */