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 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 message from the compiler.

While useful, Concepts can be difficult to apply and even confusing sometimes. This course provides you with the knowledge you need to overcome these obstacles and move on to more complex topics.

Let's get started.

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

In this chapter, we saw some real-life examples to demonstrate how concepts can increase the readability of our code.


* We wrote the concept `Number` to constrain the expected types only to integral or
floating-point arithmetic types.
* We saw how to enhance the understandability of utility functions by constraining
them with listing the API of the inputs that they will use.
* We learned how to provide different destructor implementations for a class template based on the characteristics of the satisfied concepts of the template arguments.
>**Note:** Keep in mind that as of February 2022, the compiler support for this feature is not unanimous yet.





Introduction

The Concept Behind C++ Concepts

Four Ways to use Concepts in Functions

C++ Concepts with Classes

Concepts Shipped with the C++ Standard Library

How to Write Your Own C++ Concepts

How to Use C++ Concepts in Real Life

Summary

Conclusion