view tomsfastmath/src/bin/fp_to_unsigned_bin.c @ 643:a362b62d38b2 dropbear-tfm

Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a with Makefile.in renamed
author Matt Johnston <matt@ucc.asn.au>
date Wed, 23 Nov 2011 18:10:20 +0700
parents
children
line wrap: on
line source
/* TomsFastMath, a fast ISO C bignum library.
 * 
 * This project is meant to fill in where LibTomMath
 * falls short.  That is speed ;-)
 *
 * This project is public domain and free for all purposes.
 * 
 * Tom St Denis, [email protected]
 */
#include <tfm.h>

void fp_to_unsigned_bin(fp_int *a, unsigned char *b)
{
  int     x;
  fp_int  t;

  fp_init_copy(&t, a);

  x = 0;
  while (fp_iszero (&t) == FP_NO) {
      b[x++] = (unsigned char) (t.dp[0] & 255);
      fp_div_2d (&t, 8, &t, NULL);
  }
  fp_reverse (b, x);
}

/* $Source$ */
/* $Revision$ */
/* $Date$ */