What are the differences between C++20 templates and concepts?
An example of an AI chatbot conversation about C++20 templates and concepts.
What are the differences between C++20 templates and concepts?
C++20 introduces concepts as a way to specify constraints on template parameters, making templates easier to use and understand.
Can you give me an example of how concepts improve template code?
Sure! Instead of writing complex SFINAE (Substitution Failure Is Not An Error) code, you can use concepts to enforce constraints directly, like this: template<typename T> requires std::integral<T> void func(T value) { ... }.
What are the benefits of using concepts over traditional templates?
Concepts enhance code readability, provide better error messages, and allow for more expressive template definitions.
Are there any downsides to using concepts?
One downside is that concepts can introduce some overhead in terms of compilation time, especially in large codebases.
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