Method exception

include/boost/leaf/exception.hpp:120–127

    public:

        exception( exception const & other ):
            Ex(other),
            exception_base(other),
            error_id(other),
            clear_current_error_(other.clear_current_error_)
        {
            other.clear_current_error_ = false;
        }

        exception( exception && other ) noexcept:
            Ex(std::move(other)),