What are the differences between abstract classes and interfaces in C++11?
An example of an AI chatbot conversation about C++11 abstract classes and interfaces.
What are the differences between abstract classes and interfaces in C++11?
In C++11, abstract classes can have both pure virtual functions and concrete methods, while interfaces (pure abstract classes) can only have pure virtual functions.
Can you give me an example of each?
Sure! An abstract class might have a method with implementation, while an interface would only declare methods without any implementation.
When should I use an abstract class instead of an interface?
Use an abstract class when you want to provide some shared functionality, and use an interface when you want to define a contract without implementation.
Are there any performance differences between using them?
Generally, the performance difference is negligible, but abstract classes may have a slight overhead due to their potential implementation.
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