tommath/bn_mp_unsigned_bin_size.c

#include "tommath_private.h"
#ifdef BN_MP_UNSIGNED_BIN_SIZE_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.
 */

/* get the size for an unsigned equivalent */
int mp_unsigned_bin_size(const mp_int *a)
{
   int     size = mp_count_bits(a);
   return (size / 8) + ((((unsigned)size & 7u) != 0u) ? 1 : 0);
}
#endif

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