static uint64_t gf2_matrix_times()

in AliyunOSSSDK/aos_crc64.c [214:226]

• 12 lines of code
• 3 McCabe index (conditional complexity)

static uint64_t gf2_matrix_times(uint64_t *mat, uint64_t vec)
{
    uint64_t sum;

    sum = 0;
    while (vec) {
        if (vec & 1)
            sum ^= *mat;
        vec >>= 1;
        mat++;
    }
    return sum;
}