Behavioral Design Patterns in C++ - Shapes Example - IV

The video tutorial explains the concepts of single and double dispatch in programming. Single dispatch is akin to runtime polymorphism, where a method is invoked based on the type of the receiver object. Double dispatch involves two receiver objects and is crucial for implementing the visitor design pattern. The visitor pattern uses two hierarchies: elements and visitors, with polymorphic calls to accept and visit methods. The tutorial concludes with a code demonstration, showing how double dispatch is implemented in practice.

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