O’Reilly has had a long tradition of publishing small and slim portable reference books. As C++ is an extremely common programming language in mobile, I was given a sample copy of their Pocket Reference. Size-wise, it is about as big as three PDAs next to another…
As this book is not intended as a learning but rather a reference tool, reading it from start to end is not as easy as with other books. However, I tried and succeeded – if you already have a pretty good understanding of C/C++ and object-oriented programming, you should be able to grasp the concepts within a few minutes of thinking around.
O’Reilly has put a lot of work into the index. If you are looking for something, you will usually be able to find the relevant piece of text very quickly.
Please let me put this in writing once again: you are NOT able to learn C++ from this book. Novices, look elsewhere! People familiar with Java may have a chance, but are also advised to look elsewhere.
Cutting a long story short: the 10$ this book costs are well invested, especially if you tend to program offline a lot (netbook) and have a nasty habit of forgetting rarely used syntax elements. The book covers all important things except for using C code in C++ programs – this is a purchase you will not regret IF you are already proficient in C and have at least basic knowledge of object-oriented programming.