42 lines
965 B
C
42 lines
965 B
C
#include "tommath_private.h"
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#ifdef BN_MP_CMP_D_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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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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*
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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
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* additional optimizations in place.
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*
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* SPDX-License-Identifier: Unlicense
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*/
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/* compare a digit */
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int mp_cmp_d(const mp_int *a, mp_digit b)
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{
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/* compare based on sign */
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if (a->sign == MP_NEG) {
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return MP_LT;
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}
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/* compare based on magnitude */
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if (a->used > 1) {
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return MP_GT;
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}
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/* compare the only digit of a to b */
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if (a->dp[0] > b) {
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return MP_GT;
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} else if (a->dp[0] < b) {
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return MP_LT;
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} else {
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return MP_EQ;
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}
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}
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#endif
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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