Creating Custom Concepts

Learn how to create your own C++20 concepts to define precise requirements for types, using boolean expressions and requires statements.

Ryan McCombe
Published
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Questions & Answers

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Difference between requires keyword and requires expression
What is the difference between the requires keyword and a requires expression in C++20 concepts?
Negating requires expressions in C++20 concepts
How can I negate a requires expression in a C++20 concept to specify that a type should not satisfy certain requirements?
Using multiple type parameters in C++20 concepts
Can I define a concept that takes multiple type parameters in C++20? How can I use such a concept to constrain a template?
Using requires clause in function templates
How can I use a requires clause in a function template to constrain its arguments based on a concept?
Using concepts to constrain auto parameters
Can I use concepts to constrain auto parameters in functions? How does it work?