Actually, the only ones in C++ that I know are the C++ names for the C header files and the iostream (cout/cin), string (string), fstream (files) and sstream (stringstreams) C++ headers.
There are two wonderful C++ references that I seem to use:
C++ Reference (scroll through that page or look on the left for a menu to take you to the appropriate section)
C/C++ Reference
I personally use the first a lot more because of the fact that things seem well-organized and not very difficult to read or navigate, probably due to the fact that the layout stays rather consistent. There are also comprehensive examples for nearly everything at the first one. However, the other one is nice because it is simple, yet effective. It just gets boring looking at such a plain site at times, which can have an effect on how much you want to code.
