C.ctor: Constructors, assignments, and destructors

These are default operations:

• a default constructor: X()

• a destructor: ~X()

• a copy constructor: X(const X&)

• a move constructor: X(X&&)

• a copy assignment: X& operator=(const X&)

• a move assignment: X& operator=(X&&)

• By default, the compiler defines each of these operations if it is used, but the default can be suppressed.

• The default operations are a set of related operations that together implement the lifecycle semantics of an object.

• By default, C++ treats classes as value-like types, but not all types are value-like.

• C.dtor: Destructors

• C.ctor: Constructors

• C.copy: Copy and move

• C.defop: Default Operations

• C.other: Other default operation rules