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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c++20

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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

# How to write a `requires` clause

We can use the `requires` clause to define constraints on a class template. All we have to do is write a class template and after the template parameter list, we add the `requires` clause on  **line 8** with all the constraints we want to apply on the inputs.

Learn how the <requires> clause can be used to define constraints for the class templates. 

The Requires Clause

Learn how the <requires> clause can be used to define constraints for the class templates.

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

The Requires Clause

How to write a `requires` clause

The Requires Clause

How to write a requires clause

How to write a `requires` clause