inline InfInt InfInt::operator*(ELEM_TYPE rhs) const
{
    //PROFINY_SCOPE
    InfInt result = *this;
    ELEM_TYPE factor = rhs < 0 ? -rhs : rhs;
    multiplyByDigit(factor, result.val);
    result.correct();
    result.pos = (result.val.size() == 1 && result.val[0] == 0) ? true : (pos == (rhs >= 0));
    return result;
get link:https://bit.ly/3mggSkk