Complete Modern C++ - Constant Member Functions

The video tutorial explains the use of the constant qualifier in C++ programming. It highlights how constant member functions cannot modify member variables, making them suitable for readonly operations. The tutorial provides an example using a car object to demonstrate how constant objects can only invoke constant member functions. It further explains the role of the 'this' pointer in constant functions and how it restricts modifications to member variables. The tutorial concludes by discussing which functions should be qualified with the constant keyword and how constant member functions can only invoke other constant member functions.

What types of member functions should be qualified with the constant keyword?

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How does the compiler handle attempts to modify member variables in a constant member function?

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