Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying C++ Fundamentals [Instructor Edition]
  • Table Of Contents Toc
C++ Fundamentals [Instructor Edition]

C++ Fundamentals [Instructor Edition]

By : Francesco Zoffoli, Antonio Mallia
close
close
C++ Fundamentals [Instructor Edition]

C++ Fundamentals [Instructor Edition]

By: Francesco Zoffoli, Antonio Mallia

Overview of this book

C++ Fundamentals begins by introducing you to the C++ syntax. You will study the semantics of variables along with their advantages and trade-offs, and see how they can be best used to write safe and efficient code. With the help of this book, you’ll be able to compile fully working C++ programs and understand how variables, references, and pointers can be used to manipulate the state of the program. You will then explore functions and classes — the features that C++ offers to organize a program — and use them to solve more complex problems such as functions and classes. You’ll also understand common pitfalls and modern best practices, especially the ones that diverge from the C++98 guideline. As you advance through the chapters, you’ll study the advantages of generic programming and write your own templates to make generic algorithms that work with any type. This C++ book will guide you in fully exploiting standard containers and understanding how to pick the appropriate container for each problem. You will even work with a variety of memory management tools in C++. By the end of this book, you will not only be able to write efficient code, but also be equipped to improve the readability, performance, and maintainability of your programs using standard algorithms.
Table of Contents (9 chapters)
close
close
C++ Fundamentals
Preface

std::optional


optional<T> is a that's used to contain a value that might be present or not.

The class takes a template parameter, T, which represents the type that the std::optional template class might contain. Value type means that the instance of the class contains the value. Copying optional will create a new copy of the contained data.

At any point in the execution of the program, optional<T> either contains nothing, when it's empty, or contains a value of type T.

Optional is defined in the <optional> header.

Let's imagine our application is using a class named User for managing registered users. We would like to have a function that gets us the information of a user from their email: User getUserByEmail(Email email);.

But what happens when a user is not registered? That is, when we can determine that our system does not have the associated User instance?

Some would suggest throwing an exception. In C++, exceptions are used for exceptional situations, ones that should almost...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
C++ Fundamentals [Instructor Edition]
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon