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

Error values


Some functions are designed to perform an action and return a value based on that action, for example, sqrt will return the square root of a number. Other functions perform more complex operations and use the return value to indicate whether the function was successful. There is no common convention about such error values, so if a function returns a simple integer there is no guarantee that the values one library uses have the same meaning as values returned from functions in another library. This means that you have to examine carefully the documentation for any library code that you use.

Windows does provide common error values, which can be found in the winerror.h header file, and the functions in the Windows Software Development Kit (SDK) only return values in this file. If you write library code that will be used exclusively in Windows applications, consider using the error values in this file because you can use the Win32 FormatMessage function to obtain a description...