Assertion: inheritance's base class | /r/HasProperty | shared by multiple classes
Facets:
Source sentences:
text: Because there is only a single instance of a virtual base class that is shared by multiple classes that inherit from it, the constructor for a virtual base class is not called by the class that inherits from it (which is how constructors are called, when each class has its own copy of its parent class) since that would mean the constructor would run multiple times.