Great talk. I'm more and more interested in style these days, and tools that enforce style.

The reason for using any extension for C++ header files is very simple: most tasks (>99%) of building systems don't depend on header files extensions: they care of _source_ files extensions to find out how to _compile_ them (i.e. C or C++).

Great pragmatic talk as always! Please write your own style guide book ;)

There was a discussion of the "virtual" + "final" guidelines here: github.com/isocpp/CppCoreGuidelines/issues/1271#issuecomment-421990940 and Nicolai is correct that the guideline is not 100% correct, it was simply decided that trying to catch all the cases was more complicated than just keeping a simpler rule.

I find it funny that -Wall doesn't turn on _all_ warnings.

13:01 In my 20+ years of career and C++ experience, I never had a problem with header files having ".h" extension.

Nicolai, just don't use keyword "final" for methods which can't be hidden by derived class. Try to find another keyword because keyword "final" is reserved for derivation purposes and share your idea with us and standardization comity to discuss.

Override - last week found a bug in production-code that has been around for > 3 years and was not discovered - cause while that feature was officially supported it seems nobody ever used it. A derived class tried to override a function but did not use 'override' but had an extra const.......

We should reconsider adding automatic virtual destructor to a class that has at least pure virtual methods. Not sure if non-pure virtual methods.

I like .c++ for implementation files and .h for header files.

In short: C++ is a mess. One of the biggest gripes I have with the language is all the implicit stuff. I think if everything had to be explicitly declared, a lot of problems would go away completely. If you write something, it should mean one thing, and one thing only.

47:47 Ecumenical C++. There are multiple paths to god.

7:13 "Within C++ is a smaller, simpler, safer language struggling to get out." And It's name is C.