In this section, we've explored a variety of topics that have hopefully given you a better, well rounded and more thorough look at some C++ features. This section rounded out our course by introducing template functions and classes, to help us further encourage software reuse. We also learned about the variety of data structures and algorithms available in the C++ standard template library or STL. We discussed the power of smart pointers which managed the memory for us so we don't have to de-allocate the memory when we're done with it explicitly. Further, we explored the topic of friend functions and friend classes. And finally we discussed operator overloading a feature that many languages do not possess but that is available in C++ and can be incredibly useful. We ended this section with a couple of really cool projects. We built an interactive dictionary application using the STL map data type behind the scenes. We then built a really cool application involving aliens and operator overloading. I don't know about you, but I think this section and this course has been a blast. I will work to continually improve this course and its material and make it the best C++ course available anywhere. I'll see you around.