After almost 12~15 years of programming in C and C++, I would give myself a solid “still don’t know enough” out of 10.

I recently got bitten by exactly that std::optional UB and here I was thinking 🤔 after 12+ years in the industry starting all the way back in the day with C++03 that modern C++ was supposed to make things better.😐

You forgot that beauty - “undefined behavior”!

Memory-safety can guarantee only so much safety! C++ can still blow up in your face, even with all the alleged memory-safety built into C++, thanks to all the UB traps in C and C++.

Rust is the closest language that has no such “gotchas”.