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.

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

In this chapter, we discovered three ways to use concepts with classes. We learned that concepts can be used to constrain the types that our template classes can accept. To do that, we can use the `requires` clause and constrained template parameters. In addition, we saw how to use the trailing `requires` clause to constrain only certain methods of a class template. Here’s a list of some important takeaways from this chapter:




Get an overview of the major points discussed in the previous lessons.

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

Key Takeaways