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

Enabling range-based for loops for custom types


As we have seen in the preceding recipe, the range-based for loops, known as for each in other programming languages, allows you to iterate over the elements of a range, providing a simplified syntax over the standard for loops and making the code more readable in many situations. However, range-based for loops do not work out of the box with any type representing a range, but require the presence of a begin() and end() function (for non-array types) either as a member or free function. In this recipe, we will see how to enable a custom type to be used in range-based for loops.

Getting ready

It is recommended that you read the recipe Using range-based for loops to iterate on a range before continuing with this one if you need to understand how range-based for loops work and what is the code the compiler generates for such a loop.

To show how we can enable range-based for loops for custom types representing sequences, we will use the following...