Preprocessor: Basics and Tools

This lecture covers the tasks of the preprocessor and debugging tools in C++. It explains the role of the preprocessor in managing constants, conditional compilation, and handling multiple inclusions. It also delves into the use of directives like #include and #define, emphasizing the importance of minimal interface content in modules. The lecture further discusses the creation of symbols, conditional compilation, and the prevention of multiple definitions. Debugging tools such as assert() and NDEBUG are introduced, highlighting their significance in ensuring program correctness. The session concludes with insights on modular architecture and the challenges of multiple inclusions, proposing solutions like header guards to avoid such issues.