I'm with you mostly, although as the mostly sole maintainer of an 22 years old and still evolving C++ codebase (among some other responsibilities) I do try to keep up with the language. But if I didn't feel this was necessary for my job I probably wouldn't do it or at least won't sink too much time into it.
I've also programmed in Haskell and I've had the same reaction as you, as to the things I can easily express there and not in C++. However I think the 2 cultures (Haskell and C++) are similar in that they both attract people who like to produce clever code which is unreadable to other people, even though the base language is not that complicated.
As for your questions:
1) shared_ptr / unique_ptr: Personally I liked this presentation. Watch it on x2 speed until it gets to parts that are difficult for you.
This is more dense than the previous one. As for your question "how do lambdas interact with C function pointers": rough explanation is they are not the same, since they can possibly allocate memory if they capture. But if they don't capture anything they are just like a (static) function, and can be converted to a function pointer.
As for concepts / traits, rough answer is that you don't need to know about them for everyday work, unless you write a library / API for consumption by other C++ developers. In that case, they help the compiler provide better/shorter error messages in case template functions/classes aren't used properly.
I've also programmed in Haskell and I've had the same reaction as you, as to the things I can easily express there and not in C++. However I think the 2 cultures (Haskell and C++) are similar in that they both attract people who like to produce clever code which is unreadable to other people, even though the base language is not that complicated.
As for your questions:
1) shared_ptr / unique_ptr: Personally I liked this presentation. Watch it on x2 speed until it gets to parts that are difficult for you.
https://www.youtube.com/watch?v=xGDLkt-jBJ4
2) lambdas:
https://www.youtube.com/watch?v=3jCOwajNch0
This is more dense than the previous one. As for your question "how do lambdas interact with C function pointers": rough explanation is they are not the same, since they can possibly allocate memory if they capture. But if they don't capture anything they are just like a (static) function, and can be converted to a function pointer.
As for concepts / traits, rough answer is that you don't need to know about them for everyday work, unless you write a library / API for consumption by other C++ developers. In that case, they help the compiler provide better/shorter error messages in case template functions/classes aren't used properly.