> You all could judge me, but could not judge the existence for me as a natural person, which made me feel embarrassed and think you all are rude.
Undeniablly, you have used AI's answers instead of yourself without checking. The answers don't have any value. I don't think a AI-generated answer can appear in this list. It's absurd.

> This is just a header, I didn't give you cpp file for implementations.
Without cpp files, it still causes syntax errors.

> At it could run on my phone, it's enough.
So it's unreasonably to talk it in discussion about Standard. It just like you want to add Windows.h into Standard. You can discuss it in Reddit or Discord, but not here.

The other problem is that you never follow the topic we are discussing, and promoted self-absorbedly.

In my personal opinion, you look haven't been learned C++ systematically, and not sure if your code is correct. We have no reason to continue discussing.