tommath/bn_mp_to_signed_bin.c

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#include <tommath_private.h>
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#ifdef BN_MP_TO_SIGNED_BIN_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
*
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* The library was designed directly after the MPI library by
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* 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, tstdenis82@gmail.com, http://libtom.org
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*/
/* store in signed [big endian] format */
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int mp_to_signed_bin (mp_int * a, unsigned char *b)
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{
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int res;
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if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) {
return res;
}
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b[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1;
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return MP_OKAY;
}
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#endif
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/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */