Secundi questions

Secundi answers

• can you switch over a std::any.type()?
• Layout with union and empty base class on Windows
• How am I misunderstanding the C++ standard regarding "trivially copyable"?
• What is correct syntax for explicit call to conversion operator with deduced return type (auto) [duplicate]
• Using std::map should be deterministic or not?
• How to explicitly call a conversion function whose conversion-type-id contains a placeholder specifier
• Overloaded operator preference [duplicate]
• How risky is it to destroy_at/construct non-copyable vector elements?