What does the term 'constructor' refer to in a class?

The term 'constructor' in a class refers to a special member function that is used for initializing objects of that class. When an object is created, the constructor is automatically invoked to set up the initial state of the object, which can include setting default values for attributes or executing any necessary setup code. Constructors can take parameters, allowing you to pass in values that can customize the initialization of the object.

Since the purpose of a constructor is fundamentally linked to the creation and initialization of an object, it plays a crucial role in ensuring that the object is ready for use immediately after it is created. This automatic invocation upon object creation is what distinguishes constructors from regular functions within the class that must be explicitly called to be executed.

Understanding what constitutes a constructor and its role in object-oriented programming is essential for effective class design and object management in C++.