Book Image

Advanced C++

By : Gazihan Alankus, Olena Lizina, Rakesh Mane, Vivek Nagarajan, Brian Price
5 (1)
Book Image

Advanced C++

5 (1)
By: Gazihan Alankus, Olena Lizina, Rakesh Mane, Vivek Nagarajan, Brian Price

Overview of this book

C++ is one of the most widely used programming languages and is applied in a variety of domains, right from gaming to graphical user interface (GUI) programming and even operating systems. If you're looking to expand your career opportunities, mastering the advanced features of C++ is key. The book begins with advanced C++ concepts by helping you decipher the sophisticated C++ type system and understand how various stages of compilation convert source code to object code. You'll then learn how to recognize the tools that need to be used in order to control the flow of execution, capture data, and pass data around. By creating small models, you'll even discover how to use advanced lambdas and captures and express common API design patterns in C++. As you cover later chapters, you'll explore ways to optimize your code by learning about memory alignment, cache access, and the time a program takes to run. The concluding chapter will help you to maximize performance by understanding modern CPU branch prediction and how to make your code cache-friendly. By the end of this book, you'll have developed programming skills that will set you apart from other C++ programmers.
Table of Contents (11 chapters)
6. Streams and I/O

8. Need for Speed – Performance and Optimization

Learning Objectives

By the end of this chapter, you will be able to:

  • Time your code performance manually
  • Use source code instrumentation to measure code execution time
  • Use the perf tool to analyze program performance
  • Use the godbolt compiler explorer tool to analyze machine code generated by a compiler
  • Use compiler flags to generate better code
  • Apply code idioms that result in performance
  • Write cache-friendly code
  • Apply algorithm-level optimizations to real-world problems

In this chapter, we will explore concepts that will allow us to write fast code in general and several practical techniques that apply to C++ in particular.