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C++ Concepts: Improve Type Safety with C++ 20

Gain insights into C++20 Concepts to enhance type safety. Delve into creating compiler-checked criteria for templates and improving error clarity for seamless generic code development.

Intermediate

68 Lessons

3h 20min

Certificate of Completion

Gain insights into C++20 Concepts to enhance type safety. Delve into creating compiler-checked criteria for templates and improving error clarity for seamless generic code development.

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This course includes

66 Playgrounds

6 Quizzes

Course Overview

What You'll Learn

Course Content

Course Overview

This course will walk you through the newest version of C++ 20, C++ Concepts. You will go through one of the most significant new features in C++20, which is Concepts. Concepts allow you to create compiler-checked criteria for template parameters, revolutionizing the way you think about and develop generic code. You can use them to provide both syntactic and semantic requirements. They also allow you to explicitly express your goal in the type system. If something goes wrong, you'll get a clear error messa...Show More

What You'll Learn

Learn to use concepts to create more powerful programs

Learn to write your own C++ Concepts

Learn to use C++ Concepts in real life

Learn to use concepts to create more powerful programs

Course Content

Introduction

2 Lessons

Get familiar with C++20 concepts, enhancing type safety and improving template usability.

Getting Started

Why C++ Concepts?

The Concept Behind C++ Concepts

5 Lessons

Discover the logic behind C++20 concepts, enhancing template safety, clarity, and performance.

Use of Concepts

Motivation Behind C++ Concepts

Templates in C++

Quiz on C++ Templates

Highlights

Four Ways to use Concepts in Functions

13 Lessons

Explore using C++ concepts in functions for enhanced type safety and template constraints.

The Four Ways to Use Concepts

The <requires> Clause

Challenge - GCD of Two Integers Using the <requires> Clause

Solution: GCD of Two Integers Using the <requires> Clause

The Trailing <requires> Clause

Challenge: GCD of Two Real Numbers Using the Trailing <requires>

Solution: GCD of Two Real Numbers Using the Trailing <requires> c

The Constrained Template Parameter

The abbreviated Function Templates

Concepts at Compile-time

How to Choose Among the Four Ways?

Quiz on the Ways to Use the C++ Concepts

Conclusion

C++ Concepts with Classes

10 Lessons

Grasp the fundamentals of applying concepts in C++ classes to enhance type safety.

Introduction

The Requires Clause

Challenge: Implement a Pair Class Using Requires Clause

Solution: Implement KeyPair Class Using <requires> Clause

Constrained Template Parameters

Challenge: Array Class Using Constrained Template Parameters

Solution: Array Class Using Constrained Template Parameters

The Trailing Requires Clause

Quiz on C++ Concepts with Classes

Key Takeaways

Concepts Shipped with the C++ Standard Library

8 Lessons

Explore C++20 standard concepts in `<concepts>`, `<iterator>`, and `<ranges>`.

Concepts in the <concepts> Header - I

Concepts in the <concepts> Header (cont.)

Concepts in the <iterator> Header

Concepts in the <ranges> Header

Quiz on the Concepts Shipped with C++ Standard Library

Challenge: A Custom Concept Using Concepts from the C++ STL

Solution: A Custom Concept Using Concepts from the C++ STL

Conclusion

How to Write Your Own C++ Concepts

21 Lessons

See how it works to create custom C++ concepts, validate constraints, and enforce type safety.

Introduction

Negations Using Concepts

Subsumption and Negations

Challenge: Fix the Code

Solution: Fix the Error in the Code

Requirements on Operations

Simple Requirements on the Interface

Full Example of Interface

Requirements on Return Types

Challenge: Concept for a Container

Solution: Concept for a Container

Type Requirements - Require the Existence of a Nested Type

A Class Template Specialization

An Alias Template Specialization

Challenge: Concept for a Container

Solution: Concept for a Container

Nested Requirements

Challenge: Concept for a Container

Solution: Concept for a Container

Quiz: Write Our Own C++ Concepts

Conclusion

How to Use C++ Concepts in Real Life

8 Lessons

Practice using C++ concepts to enhance type safety, utility functions, and implement multiple destructors.

Use Cases for Numbers

Utility Functions Constrained

Multiple Destructors with C++ Concepts

Multiple Destructors with C++20

Challenge: Container Class with Multiple Destructors

Solution: Container Class with Multiple Destructors

Quiz: C++ Concepts in Real Life

Conclusion

Summary

1 Lessons

Learn how to use C++ concepts to enhance type safety and simplify templates.

Final Words

Course Author

Sandor Dargo

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