I am a fairly experienced programmer in Java, and I am attempting to make the (somewhat painful) transition to C++. To do this I am looking for some interesting projects to work on. I am looking for stuff that would help give me experience with C++ libraries. For example, I recently wrote a simple program that would read a docx file and search it for a key word, and display the number of times it was repeated. This is the sort of project I am looking for, stuff that requires one to develop a working understanding of C++ libraries of data-types. Does anyone have any suggestions?
(Please don't suggest project Euler as I have already completed most of those problems.)
Thanks in advance.