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  • Book Overview & Buying C++ Fundamentals [Instructor Edition]
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C++ Fundamentals [Instructor Edition]

C++ Fundamentals [Instructor Edition]

By : Francesco Zoffoli, Antonio Mallia
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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)
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C++ Fundamentals
Preface

Defining Function and Class Templates


In the previous section, we saw the advantages of templates in writing abstractions. In this section, we are going to explore how we can effectively use templates in our code to create templated functions and templated classes.

Function Template

In the previous section, we learned how function templates are written.

In this section, we will learn about the two features that were introduced by C++11 that make it easier to write template functions. These two functions are trailing return types and decltype.

Let's start with the decltype. The decltype is a keyword that accepts an expression and returns the type of that expression. Let's examine the following code:

int x;
decltype(x) y;

In the previous code, y is declared as an integer, because we are using the type of the expression x, which is int.

Any expression can be used inside decltype, even complex ones, for example:

User user;
decltype(user.getAccount()) account;

Let's look at the second feature—trailing...

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C++ Fundamentals [Instructor Edition]
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