François-Marie Arouet questions

• Why is a reference to a polymorphic class, polymorphic?
• I'm trying to print a Chinese character using the types wchar_t, char16_t and char32_t, to no avail.
• While doing copy-elision, the compiler doesn't consider the copy constructor in overload resolution, when the move constructor is deleted. Why?
• Why can't I change the value of a variable captured by copy in a lambda function?
• Shouldn't the temporary A(3) be destroyed before "Here" is printed?

François-Marie Arouet answers