#include "tommath_private.h" #ifdef S_MP_GET_BIT_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* Get bit at position b and return true if the bit is 1, false if it is 0 */ bool s_mp_get_bit(const mp_int *a, unsigned int b) { mp_digit bit; int limb = (int)(b / MP_DIGIT_BIT); if (limb >= a->used) { return false; } bit = (mp_digit)1 << (b % MP_DIGIT_BIT); return ((a->dp[limb] & bit) != 0u); } #endif