Mercurial > dropbear
view libtommath/bn_mp_cmp_d.c @ 1702:8f93f37c01de
Allow DH to be completely disabled (#97)
Reduces binary size by ~2kB by default and by 21kB with no other
libtommath functions users, ex. with curve25519 kex and ed25519
key only.
author | Vladislav Grishenko <themiron@users.noreply.github.com> |
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date | Thu, 28 May 2020 20:01:48 +0500 |
parents | 1051e4eea25a |
children |
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#include "tommath_private.h" #ifdef BN_MP_CMP_D_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* compare a digit */ mp_ord mp_cmp_d(const mp_int *a, mp_digit b) { /* compare based on sign */ if (a->sign == MP_NEG) { return MP_LT; } /* compare based on magnitude */ if (a->used > 1) { return MP_GT; } /* compare the only digit of a to b */ if (a->dp[0] > b) { return MP_GT; } else if (a->dp[0] < b) { return MP_LT; } else { return MP_EQ; } } #endif