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C++20 STL Cookbook

Gain insights into C++20 and STL, explore lambda expressions, algorithms, concurrency, and file systems to write modern, efficient code, and become a proficient C++ programmer.

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In this course, you’ll master the art of leveraging the latest features of C++20 and harness the full potential of the Standard Template Library (STL). You’ll begin by learning about general STL features and containers for exploring lambda expressions, algorithms, and string streams. You will comprehensively learn and understand the STL’s power. Then, you’ll get hands-on coding experience with utility classes, concurrency and parallelism, and manipulating file systems. By the end of the course, you’ll be equipped with the skills to write modern and efficient code. You will be a confident C++ programmer, proficient in utilizing the STL to solve complex problems and elevate your programming endeavors.

In this course, you’ll master the art of leveraging the latest features of C++20 and harness the full potential of the Standard ...Show More

WHAT YOU'LL LEARN

An understanding of C++20 features and lambda expressions

A working knowledge of STL containers and algorithms

An understanding of advanced string streams and formatting

A working knowledge of concurrency and parallelism techniques

An understanding of C++20 features and lambda expressions

Content

127 Lessons11 Quizzes9 Challenges

Introduction

1 Lessons

Get familiar with C++20 STL, advanced features, and efficient programming techniques.

About This Course

New C++20 Features

10 Lessons

Walk through significant new C++20 STL features like concepts, ranges, and the format library.

Chapter Overview

Format Text with the New Format Library

Use Compile-Time Vectors and Strings with Constexpr

Safely Compare Integers of Different Types

Use the Spaceship Operator <=> for Three-Way Comparisons

Easily Find Feature Test Macros with the <version> Header

Create Safer Templates with Concepts and Constraints

Avoid Re-Compiling Template Libraries with Modules

Create Views into Containers with Ranges

Quiz: C++20 Features

General STL Features

8 Lessons

Examine new C++20 STL features improving code simplicity, readability, and safety.

Chapter Overview

Use the New Span Class to Make Our C-Arrays Safer

Use Structured Binding to Return Multiple Values

Initialize Variables within if and switch Statements

Use Template Argument Deduction for Simplicity and Clarity

Use If constexpr to Simplify Compile-Time Decisions

Quiz: General STL Features

Challenge: Make Our Code Safer and Easier to Read

STL Containers

15 Lessons

Grasp the fundamentals of STL containers, including optimization, access, sorting, and specialized use cases.

Chapter Overview

Use Uniform Erasure Functions to Delete Items from a Container

Delete Items from an Unsorted Vector in Constant Time

Access Vector Elements Directly and Safely

Keep Vector Elements Sorted

Efficiently Insert Elements into a Map

Efficiently Modify the Keys of Map Items

Use unordered_map with Custom Keys

Use Set to Sort and Filter User Input

A Simple RPN Calculator with Deque

A Word Frequency Counter with Map

Find Long Sentences with a Vector of Vectors

A ToDo List Using Multimap

Quiz: STL Containers

Challenge: Let's Play with Containers

Compatible Iterators

12 Lessons

Solve problems in creating and utilizing C++ iterators with STL compatibility and custom functionality.

Chapter Overview

Iterators Are Fundamental

Create an Iterable Range

Make Our Iterators Compatible with STL Iterator Traits

Use Iterator Adapters to Fill STL Containers

Create a Generator as Iterators

Use Reverse Iterator Adapters to Iterate Backward

Iterate Objects of Unknown Length with a Sentinel

Build a Zip Iterator Adapter

Create a Random-Access Iterator

Quiz: Compatible Iterators

Challenge: Reverse Everything in a String

Lambda Expressions

11 Lessons

Tackle lambda expressions in C++20 to enhance functional programming, efficiency, and code versatility.

Chapter Overview

Lambda Expressions

Use Lambdas for Scoped Reusable Code

Use Lambdas as Predicates with the Algorithm Library

Use std::function as a Polymorphic Wrapper

Concatenate Lambdas with Recursion

Combine Predicates with Logical Conjunction

Call Multiple Lambdas with the Same Input

Use Mapped Lambdas for a Jump Table

Quiz: Lambda Expressions

Challenge: Output with Lambda Expressions

STL Algorithms

12 Lessons

Build on STL algorithms to enhance code readability, efficiency, and data manipulation.

Chapter Overview

Copy from One Iterator to Another

Join Container Elements into a String

Sort Containers with std::sort()

Modify Containers with std::transform

Find Items in a Container

Limit the Values of a Container to a Range with std::clamp

Sample Data Sets with std::sample

Generate Permutations of Data Sequences

Merge Sorted Containers

Quiz: STL Algorithms

Challenge: Let's Dive into Algorithms

Strings, Streams, and Formatting

13 Lessons

Break down C++20 string management, formatting, and text handling, enhancing efficiency and flexibility.

Chapter Overview

Use string_view as a Lightweight String Object

Concatenate Strings

Transform Strings

Format Text with C++20’s Format Library

Trim Whitespace from Strings

Read Strings from User Input

Count Words in a File

Initialize Complex Structures From File Input

Customize a String Class With char_traits

Parse Strings with Regular Expressions

Quiz: Strings, Streams and Formatting

Challenge: String With a Zero Space

Utility Classes

14 Lessons

Explore key utility classes in C++ for optional values, type safety, time, and memory management.

Chapter Overview

Manage Optional Values with std::optional

Use std::any for Type Safety

Store Different Types with std::variant

Time Events with std::chrono

Use Fold Expressions for Variadic Tuples

Manage Allocated Memory with std::unique_ptr

Share Objects with std::shared_ptr

Use Weak Pointers with Shared Objects

Share Members of a Managed Object

Compare Random Number Engines

Compare Random Number Distribution Generators

Quiz: Utility Classes

Challenge: Let's Check Out the Type of Data

10.

Concurrency and Parallelism

11 Lessons

Work your way through concurrency and parallelism with C++20, threads, async, mutex, and condition variables.

Chapter Overview

Sleep for a Specific Amount of Time

Use std::thread for Concurrency

Use std::async for Concurrency

Run STL Algorithms in Parallel with Execution Policies

Share Data Safely with Mutex and Locks

Share Flags and Values with std::atomic

Initialize Threads with std::call_once

Use std::condition_variable to Resolve the Producer-Consumer

Quiz: Concurrency and Parallelism

Challenge: Sleep in a Multithread Function Call

11.

Using the File System

9 Lessons

Grasp the fundamentals of using the C++20 STL filesystem library for cross-platform file operations.

Chapter Overview

Specialize std::formatter for the Path Class

Use Manipulation Functions with Path

List Files in a Directory

Search Directories and Files With a Grep Utility

Rename Files with Regex and directory_iterator

Create a Disk Usage Counter

Quiz: Usage of the File System

Challenge: What's Inside a Path?

12.

A Few More Ideas

10 Lessons

Dig deeper into advanced C++20 STL applications, including tries, producer-consumer management, custom algorithms, and data manipulation techniques.

Chapter Overview

Create a Trie Class for Search Suggestions

Implement Multiple Producers and Consumers

Calculate the Error Sum of Two Vectors

Build Our Own Algorithm: Split

Leverage Existing Algorithms: Gather

Remove Consecutive Whitespace

Convert Numbers to Words

Quiz: Trie, Gather Function, and White Space Removal

Challenge: Remove Whatever is White!

13.

Conclusion

1 Lessons

Focus on mastering C++20 STL features, efficient programming, and continuous learning.

Final Thoughts

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Course Author:

Packt

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