Book Image

Modern C++: Efficient and Scalable Application Development

By : Richard Grimes, Marius Bancila
Book Image

Modern C++: Efficient and Scalable Application Development

By: Richard Grimes, Marius Bancila

Overview of this book

C++ is one of the most widely used programming languages. It is fast, flexible, and used to solve many programming problems. This Learning Path gives you an in-depth and hands-on experience of working with C++, using the latest recipes and understanding most recent developments. You will explore C++ programming constructs by learning about language structures, functions, and classes, which will help you identify the execution flow through code. You will also understand the importance of the C++ standard library as well as memory allocation for writing better and faster programs. Modern C++: Efficient and Scalable Application Development deals with the challenges faced with advanced C++ programming. You will work through advanced topics such as multithreading, networking, concurrency, lambda expressions, and many more recipes. By the end of this Learning Path, you will have all the skills to become a master C++ programmer. This Learning Path includes content from the following Packt products: • Beginning C++ Programming by Richard Grimes • Modern C++ Programming Cookbook by Marius Bancila • The Modern C++ Challenge by Marius Bancila
Table of Contents (24 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
12
Math Problems
13
Language Features
14
Strings and Regular Expressions
15
Streams and Filesystems
16
Date and Time
17
Algorithms and Data Structures
Index

Preparing your code


The C++ and C Standard Libraries have a wide range of functions that allow you to apply tracing and reporting functions so that you can test if code is handling data in expected ways. Much of these facilities use conditional compilation so that the reporting only occurs in debug builds, but if you provide the traces with meaningful messages they will form part of the documentation of your code. Before you can report on the behavior of your code, you first have to know what to expect from it.

Invariants and conditions

Class invariants are conditions, the object state, that you know remain true. During a method call the object state will change, possibly to something that invalidates the object, but once a public method has completed, the object state must be left in a consistent state. There is no guarantee what order the user will call methods on a class, or even if they call methods at all, so an object must be usable whatever methods the user calls. The invariant aspects...