An Introduction to Concepts and Constraints
Get introduced to the topics such as requires expressions, composing constraints, and more.
We'll cover the following
The C++20 standard provides a series of significant improvements to template metaprogramming with concepts and constraints. A constraint is a modern way to define requirements on template parameters. A concept is a set of named constraints. Concepts provide several benefits to the traditional way of writing templates, mainly improved readability of code, better diagnostics, and reduced compilation times.
Overview of concepts and constraints
In this section, we’ll address the following topics:
Understanding the need for concepts
Defining concepts
Exploring requires expressions
Composing constraints
Learning about the ordering of templates with constraints
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