What are Concepts in C++?
Concepts are used to specify the requirements of the template arguments. Concepts allow you to define constraints to your template. It is a way using which we can specify some constraints for our template arguments in C++.
Syntax
template <typename T> concept ConceptName = /* constraints or requirements */;
If we combine these two terms then we can say that constraints are the expression and concepts is a way to define these expressions.
Constraints and Concepts in C++ 20
In this article, we will learn about the constraints and concepts with the help of examples in a simple way. So, it is a feature that was introduced in the latest version i.e. C++20 that specifies requirements on template arguments and enables more expressive and readable code.
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