Method check_round_trip

test/double.cpp:107–118

    }

    void
    static
    check_round_trip(value const& jv1,
        const parse_options& po = parse_options())
    {
        auto const s2 =
            //to_string_test(jv1); // use this if serializer is broken
            serialize(jv1);
        auto jv2 =
            from_string_test(s2, {}, po);
        BOOST_TEST(equal(jv1, jv2));
    }

    template<class F>
    void