bn_mp_to_signed_bin.c

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Author : Daniel Mendler
Date : 2019-05-13 00:22:18
Hash : 4534056c
Message : use enums mp_err, mp_ord, mp_bool, mp_sign * MP_USE_ENUMS enables enums * Wc++-compat catches some implicit conversions if MP_USE_ENUMS is defined * 100% backwards compatible API/ABI if MP_USE_ENUMS is not defined

bn_mp_to_signed_bin.c

#include "tommath_private.h"
#ifdef BN_MP_TO_SIGNED_BIN_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */

/* store in signed [big endian] format */
mp_err mp_to_signed_bin(const mp_int *a, unsigned char *b)
{
   mp_err res;
   if ((res = mp_to_unsigned_bin(a, b + 1)) != MP_OKAY) {
      return res;
   }
   b[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1;
   return MP_OKAY;
}
#endif

kc3-lang/libtommath/bn_mp_to_signed_bin.c

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