Is it possible to use inheritance if there are no fields involved?

[Lazrius]

Good afternoon.

I was wondering if it is possible to allow some form of inheritance if fields are not involved. I have the following example code:

// BaseConfig<T> provides a Load and Save functions for easy reusability / pre-processing before calling rfl functions
struct PatchNoteConfig : BaseConfig<PatchNoteConfig>
{
    PatchNoteConfig() : BaseConfig("patch_notes.yml", false) {}

    std::string url = "http://localhost:8080/notes.md";
    bool sortPatchNotes = true;
};

In this example, BaseConfig simply defines some functions for some code reuse, but it contains no fields directly. I assume that this fails due to the std::is_aggregate_v call failing, but I imagine that if read_struct was called, it would probably work? Would it be possible for us to reflect on structs that have no fields and a parameterless constructor?

[liuzicheng1987]

It is.

The catch is that it is deactivated by default, because it increases compile time:

https://rfl.getml.com/c_arrays_and_inheritance/