anonymous union Unnamed union that is not used to define an object. Members of an anonymous union become members of the surrounding scope. These unions may not have member functions and may not have private or protected members.
bit-field Class member with a integral type that specifies the number of bits to allocate to the member. Bit-fields defined in consecutive order in the class are, if possible, compacted into a common integral value.
discriminant Programming technique that uses an object to determine which actual type is held in a union at any given time.
dynamic_cast Operator that performs a checked cast from a base type to a derived type. When the base type has at least one virtual function, the operator checks the dynamic ...