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 section, we’ll learn the four different ways we can use concepts with C++ functions and the four different ways to constrain function templates. Once we understand them and their differences, we’ll see how to choose among the different forms.

# Types of concepts
For our examples, let’s assume that we have a concept called `Number` that requires a built-in arithmetic type of C++. As such, user-defined numeric types are ignored. We’ll use a very simplistic implementation.

Learn how to use concepts in four different ways.

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 Four Ways to Use Concepts

Types of concepts