t8-mod/deps/libtommath/mp_mod.c

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2024-02-15 15:46:47 -05:00
#include "tommath_private.h"
#ifdef MP_MOD_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* c = a mod b, 0 <= c < b if b > 0, b < c <= 0 if b < 0 */
mp_err mp_mod(const mp_int *a, const mp_int *b, mp_int *c)
{
mp_err err;
if ((err = mp_div(a, b, NULL, c)) != MP_OKAY) {
return err;
}
return mp_iszero(c) || (c->sign == b->sign) ? MP_OKAY : mp_add(b, c, c);
}
#endif