I'm optimizing on an R library, whose critical part is expected to be rewritten in C/C++, but the problem is I don't really know C++, even though I have some decent experience with C and Java. I don't have a lot of time for this task, and teaching myself how to write C++ with RCpp would be too time consuming and I suspect if it would finally pay off.
Just asking if there is a tutorial more comprehensive than [1], which seems a little too concise.
[1]: http://adv-r.had.co.nz/C-interface.html