When you write your C++ code you should always have one eye looking towards the testing and debugging of your code. The ideal way to prevent the need to debug code is to write robust, well-designed code. Ideals are difficult to achieve, so it is better to write code that is easy for you to diagnose issues and easy to debug with. The C Runtime and the C++ Standard Library provides a wide range of facilities to enable you to trace and report issues, and through error code handling and exceptions you have a rich collection of tools to report and handle the failure of functions.
After reading this book you should be aware that the C++ language and Standard Library provide a rich, flexible, and powerful way to write code. What's more, once you know how to use the language and its libraries, C++ is a pleasure to use.