Lambdas and Initialization in C++
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Lambdas and Initialization in C++

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Two of my books! Learn all about Lambdas and how to initialize data members. Practical knowledge to boost your Modern C++ Skills. From C++11 till C++20 and beyond.

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About the Books

C++ Lambda Story

Everything you need to know about Lambda Expressions in Modern C++!
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This book guides you through the evolution of C++ Lambda Expressions so that you can learn it step by step. We'll start with C++03 and a motivation to have "ad-hoc" functors, and then we'll move into the latest C++ standards:

  • C++11 - early days of the feature. You'll learn about all the essential aspects of lambdas and several tricks you might apply. This is the longest chapter as we need to cover a lot of topics.
  • C++14 - updates. See how to use generic lambdas and captures with an initialiser.
  • C++17 - more improvements, especially by handling `this` pointer and allowing `constexpr`. You'll also learn about the overloaded pattern and how to derive from lambda.
  • C++20 - in this section you'll see all of the new features adopted for C++20 like template lambdas and how to use them with concepts and constexpr algorithms.

Additionally, throughout the chapters, you'll learn about the following techniques:

  • Immediately Invoked Functional Expressions (IIFE)
  • How to instrument a default functor to gather extra information
  • Replacing std::bind1st, std::bind2nd and removed functional stuff
  • The Overloaded Pattern and how to inherit from a lambda
  • Passing C++ captureless lambda as a function pointer to C API
  • LIFTING with lambdas
  • Storing lambdas in a container
  • Variadic templates and arguments packs
  • Lambdas and asynchronous execution
  • and many more

While the book is 100% ready, I might release some "hot-fixes" smaller releases. All existing readers get new updates for free.

The book is inspired by two articles that appeared at cppstories.com:

The articles also are based on a live coding presentation given by C++ Expert Tomasz Kamiński at our local Cracow C++ User Group.

Readers Feedback & Reviews

Below, you can find the GoodReads page for the book with the readers' feedback:

C++ Lambda Story @GoodReads

And a review at Adam Sawicki Blog:

Book Review: C++ Lambda Story

FAQ

I'm a beginner in C++? Is that book for me?

The book assumes that you have a basic knowledge of C++. I suggest taking some elementary course first.

I'm an expert, and I know everything about C++? Is that book for me?

Yeah... you know all about C++? Is this possible? :)

Anyway, in your case, the book will give you a good refresher and even will show you some new tricks.

I'm not a beginner nor an expert...?

Perfect! So the book will show you lots of examples that will expand your knowledge and also remind you things that you may already know.

Additionally, throughout the book, you'll see other techniques and features related to modern C++ like, `constexpr`, exceptions, fold expressions, `std::thread`, perfect forwarding using callable objects and many more.

Is this a historical book with lots of boring descriptions?

The flow of the book focuses on the background behind lambda expression and its evolution. But it's meant to teach you practical things. You'll learn the lambdas step by step, understanding new capabilities that lambdas got with each C++ revision.

Will I get free updates?

Yes! While the book is 100% ready, I might add some more updates in the future, mainly bug fixes.

That's why it's best to buy the book as early as possible; for example, the earliest version of the book was completely free.

The content looks like copied directly from the blog, so what's the point to buy it?

The very early version of the book was adapted directly from the blog... but then most of the content was rewritten and heavily updated. Now, you get at least 4x of what's available on the blog, not to mention the better quality and a nice-looking pdf/ebook (there's no need to click and jump between separate blog articles).

On the Internet there's lots of free content about lambdas, so why buy the book?

Sure! Even on my blog, you can find lots of articles about lambda expression. The C++ draft is also free, so you can read the specification on your own. Or have an additional explanation from great cppreference pages.

But the book will save you lots of your precious time looking for those quality content, extra examples, extended descriptions. What's more, by having a nice learning flow, you can understand this powerful C++ feature much faster at a super low price.

Is there a refund option?

Yes! if you buy the Book through Leanpub, then you have a 45-day guarantee. (Not applicable with Kindle direct Publishing though).

You can also download a preview with almost 60 pages.

Did I miss something?

If you have more questions, then please ask directly and write at bartek AT cppstories.com.

Kobi
Jonathan Boccara

2 reader testimonials

Data Member Initialization in Modern C++

Constructors, Destructors, Non-static Data Member Initialization, Inline Variables, Designated Initializers, and More Modern C++ Features. A not-only-beginner approach.
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Throughout this book, you will learn practical options to initialize data members in Modern C++. More specifically, this text teaches various types of constructors, non-static data member initialization, inline variables, designated initializers, and more. Additionally, you’ll see the changes and new techniques from C++11 to C++20 and lots of examples to round out your understanding.

The goal of this book is to equip you with the following knowledge:

  • The basic rules of data members and constructors.
  • Essential information about copy constructors, move constructors and destructors.
  • How to efficiently initialize non-static data members using C++11 features like non-static data member initialization, inheriting, and delegating constructors.
  • How to streamline working with static data members with inline variables from C++17.
  • How to work with container-like member, non-copyable data members like `const` data members or move-able only data members.
  • Aggregates and Designated initializers from C++20.

The book contains 15 chapters in the following structure:

  • Chapters 1 to 5 create a foundation for the rest of the book. They cover constructors, destructors, and the basics of data members.
  • Chapter 6 shows a use case for passing strings into constructors.
  • Chapter 7 is a short quiz on constructors. You can check your knowledge from the first "part" of the book.
  • Chapter 8 describes Non-static Data Member Initialization (NSDMI), a powerful feature from C++11 that improves how we work with data members.
  • Chapter 9 serves as a practical summary for NSDMI, where you can solve a few exercises.
  • Chapter 10 discusses how to initialize container-like data members.
  • (In progress) Chapter 11 contains information about non-regular data members and how to handle them in a class. You'll learn about `const` data members, `unique_ptr` as a data member and references.
  • Chapter 12 shows how `inline` variables from C++17 work.
  • Chapter 13 moves to C++20 and describes Designated Initializers, a handy feature based on similar thing from the C language.
  • Chapter 14 it's the summary chapter with a demo that gathers most of the features described in the book.
  • Chapter 15 is the final quiz with seven questions ranging from constructors to designated initializers.

Most sections are completed, but I'm still working on filling two chapters and polishing the quality.

Who is this book for?

The book is intended for beginner/intermediate C++ programmers who want to learn how to work with static and non-static class data members in Modern C++ (from C++11 to C++20).

You should know at least some of the basics of creating and using custom classes.

This text is also helpful for experienced programmers who know older C++ standards and want to move into C++17/C++20

Jonathan Boccara
Andreas Fertig

2 reader testimonials

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