Method sub

include/jwt/json/json.hpp:14402–14408

! @brief returns x - y @pre x.e == y.e and x.f >= y.f */

    @pre x.e == y.e and x.f >= y.f
    */
    static diyfp sub(const diyfp& x, const diyfp& y) noexcept
    {
        JSON_ASSERT(x.e == y.e);
        JSON_ASSERT(x.f >= y.f);

        return {x.f - y.f, x.e};
    }

    /*!
    @brief returns x * y