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

Using bitset for fixed-size sequences of bits


It is not uncommon for developers to operate with bit flags; this can be either because they work with operating system APIs, usually written in C, that take various types of arguments (such as options or styles) in the form of bit flags, or because they work with libraries that do similar things, or simply because some types of problems are naturally solved with bit flags. One can think of alternatives to working with bits and bit operations, such as defining arrays having one element for every option/flag, or defining a structure with members and functions to model the bit flags, but these are often more complicated, and in case you need to pass a numerical value representing bit flags to a function you still need to convert the array or the structure to a sequence of bits. For this reason, the C++ standard provides a container called std::bitset for fixed-size sequences of bits.

Getting ready

For this recipe, you must be familiar with bitwise...