Behavioral Design Patterns in C++ - Chat System - I

The video tutorial explains the mediator design pattern using a chat system example. It highlights the complexity of direct connections between participants in a growing chat system and introduces a central chat server as a mediator. The tutorial covers the implementation of a chat system using the mediator pattern, including creating a base class for participants and subclassing for different types. It also discusses the use of the observer pattern for message forwarding and the interaction between participants and the server. The tutorial concludes with a brief introduction to subclassing and message handling.

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