29 lines
580 B
C
29 lines
580 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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/* SPDX-License-Identifier: Unlicense */
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/* compare a digit */
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mp_ord 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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