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C++ Implementation for 23 Design Patterns

• Abstract Factory, families of product objects
• Builder, how a composite object gets created
• Factory Method, subclass of object that is instantiated
• Prototype, class of object that is instantiated
• Singleton, the sole instance of a class

• Adapter, interface to an object
• Bridge, implementation of an object
• Composite, structure and composition of an object
• Decorator, responsibilities of an object without subclassing
• Façade, interface to a subsystem
• Flyweight, storage costs of objects
• Proxy, how an object is accessed (its location)

• Chain of Responsibility, object that can fulfill a request
• Command, when and how a request is fulfilled
• Interpreter, grammar and interpretation of a language
• Iterator, how an aggregate's elements are accessed
• Mediator, how and which objects interact with each other
• Memento, what private information is stored outside an object, and when
• Observer, how the dependent objects stay up to date
• State, states of an object
• Strategy, an algorithm
• Template Method, steps of an algorithm
• Visitor, operations that can be applied to objects without changing their classes

Design patterns in this repository are based on

• Design Patterns by The "Gang of Four"
• Design Patterns in C++
• Wikipedia
• Design Patterns