Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Advanced C++

You're reading from   Advanced C++ Master the technique of confidently writing robust C++ code

Arrow left icon
Product type Paperback
Published in Oct 2019
Publisher
ISBN-13 9781838821135
Length 762 pages
Edition 1st Edition
Languages
Arrow right icon
Authors (5):
Arrow left icon
Olena Lizina Olena Lizina
Author Profile Icon Olena Lizina
Olena Lizina
Rakesh Mane Rakesh Mane
Author Profile Icon Rakesh Mane
Rakesh Mane
Gazihan Alankus Gazihan Alankus
Author Profile Icon Gazihan Alankus
Gazihan Alankus
Brian Price Brian Price
Author Profile Icon Brian Price
Brian Price
Vivek Nagarajan Vivek Nagarajan
Author Profile Icon Vivek Nagarajan
Vivek Nagarajan
+1 more Show less
Arrow right icon
View More author details
Toc

Table of Contents (11) Chapters Close

About the Book 1. Anatomy of Portable C++ Software FREE CHAPTER 2A. No Ducks Allowed – Types and Deduction 2B. No Ducks Allowed – Templates and Deduction 3. No Leaks Allowed - Exceptions and Resources 4. Separation of Concerns - Software Architecture, Functions, and Variadic Templates 5. The Philosophers' Dinner – Threads and Concurrency 6. Streams and I/O 7. Everybody Falls, It's How You Get Back Up – Testing and Debugging 8. Need for Speed – Performance and Optimization 1. Appendix

Introduction

In Chapter 2A, No Ducks Allowed – Types, and Deduction, we briefly touched on some concepts, such as smart pointers and move semantics. In this chapter, we'll be exploring them further. It turns out that these topics are very closely related to resource management and writing robust code (code that will run often and for long periods without problems).

To understand what happens, we are going to explore where variables get placed in memory, as well as when and what happens when they go out of scope.

We will look at what the compiler generates as assembler code for what we enter, and we will explore how all of this is affected when an exception occurs.

Variable Scope and Lifetime

In Chapter 2B, No Ducks Allowed – Templates, and Deduction, we discussed variable scope and lifetimes. Let's quickly go through their different types:

Scope:

  • Local scope (also known as block scope): This applies to anything that's declared within a block that is enclosed...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime