C++ was the first programming language I really got into, but the majority of my work on it was academic or for game programming. Most of the programming jobs where I live require Java or .NET programmers and I have a fairly good idea of what technologies they require aside from the basic language. For example, a Java programmer might be required to know EJB, Servlets, Hibernate, Spring, and other technologies, libraries, and frameworks.
I’m not sure about C++, however. In real life situations, for general business programming, what are C++ programmers required to know beyond the language features? Stuff like Win32 API, certain libraries, frameworks, technologies, tools, etc.
Edit: I was thinking of the standard library as well when I said basic language, sorry if it was wrong or not clear. I was wondering if there are any more specific domain requirements similar to all the technologies Java or .NET programmers might be required to learn as apposed to what C++ programmers need to know in general. I do agree that the standard library and Boost are essential, but is there anything beyond that or is it different for every company/project/domain?
As for every language, I believe there are three interconnected levels of knowledge :
So, my answer to your updated question would be : know your language, know your platform, know your domain. I think there is enough work by itself here, especially in C++. It’s an evergoing work that should never be overlooked.