Behavioral Design Patterns in C++ - Undo - III

The video tutorial explains how to implement undo and redo functionalities in an application. It begins with the undo implementation for the add command, emphasizing the need to store the added text for both undo and redo operations. The tutorial then discusses methods for removing text during undo, including calculating the text's position and length. It also covers adding undo support for the insert command, requiring storage of both the text and its insertion index. The session concludes with a brief wrap-up and a note to continue in the next lecture.

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