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

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Introduction

Getting Started Why C++ Concepts?

The Concept Behind C++ Concepts

Use of Concepts Motivation Behind C++ Concepts Templates in C++Quiz on C++ Templates Highlights

Four Ways to use Concepts in Functions

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

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

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

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

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

Final Words

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