b1sub questions

• Why does a union consisting of const-qualified variant members lead to having no defaulted default constructor?
• Why is this reference binding ill-formed?
• Unexpected behavior of bit-field
• constexpr and virtual
• What's the difference between void and cv void?
• What is the scope of a namespace identifier?
• What does the standard mean by "a subsequent condition of that statement"?
• Why is this expression not a constant expression?
• Perfect-forwarding a return value with auto&&
• Why is the conversion from char*** to char*const** invalid?

b1sub answers