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

Creating cooked user-defined literals


Literals are constants of built-in types (numerical, boolean, character, character string, and pointer) that cannot be altered in a program. The language defines a series of prefixes and suffixes to specify literals (and the prefix/suffix is actually part of the literal). C++11 allows creating user-defined literals by defining functions called literal operators that introduce suffixes for specifying literals. These work only with numerical character and character string types. This opens the possibility of defining both standard literals in future versions and allows developers to create their own literals. In this recipe, we will see how we can create our own cooked literals.

Getting ready

User-defined literals can have two forms: raw and cooked. Raw literals are not processed by the compiler, whereas cooked literals are values processed by the compiler (examples can include handling escape sequences in a character string or identifying numerical values...