logging.h

template<t> struct Meta {};

enum myEnum {
    Success,
    Failure
};

template<>
struct Meta<myEnum> {
    using type = Meta<myEnum>;
    static const char* EnumValueToString(myEnum err) {
        switch(err) {
        case Success: return "Success";
        case Failure: return "Failure";
        }
    }
};

template <typename T> struct fmt::formatter<T>: formatter<fmt::string_view> {
     fmt::format_context::iterator format(T value, fmt::format_context& ctx) const {
         return fmt::format_to(ctx.out(), fmt::runtime("{}"), MetaType<T>::type::EnumValueToString(value));
     }
};