Enum default serialization

[razaqq]

Lets say i have the following

enum class enum_t
{
    foo = 0,
    bar = 1,
};

template<>
struct glz::meta<enum_t>
{
    using enum enum_t;
    static constexpr auto value = enumerate(
        "foo", foo,
        "bar", bar
    );
};

enum_t value = static_cast<enum_t>(100);
std::string buffer{};
glz::write_json(value , buffer);
expect(buffer == "100");

By default serialization falls back to int for enums, this can cause a lot of issues with parsers expecing strings.
My question is how can i serialize unknown enum values as for example "unknown"?

Similarly what happens if there is such an inconsistency in a json object, is there a way to skip that value?

[stephenberry]

We should add a compile time option to write out unlabeled enums as "unknown". I'll make an issue for this and try to add support soon.

Thanks for the feedback!