view libtommath/bn_mp_unsigned_bin_size.c @ 1682:a53e7d2d60be

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author Matt Johnston <matt@ucc.asn.au>
date Mon, 25 May 2020 20:23:02 +0800
parents f52919ffd3b1
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#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.
 *
 * SPDX-License-Identifier: Unlicense
 */

/* 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

/* ref:         HEAD -> master, tag: v1.1.0 */
/* git commit:  08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
/* commit time: 2019-01-28 20:32:32 +0100 */