What are the differences between C++20 templates and macros?

What are the differences between C++20 templates and macros?

C++20 templates are type-safe and evaluated at compile-time, while macros are preprocessor directives that lack type safety.

Can you give an example of when to use templates over macros?

Sure! Use templates for type-specific operations, like a generic sorting function, while macros are better for simple code substitutions.

Are there any performance differences between using templates and macros?

Yes, templates can lead to better optimization by the compiler, while macros may introduce overhead due to text substitution.

What are some common pitfalls of using macros?

Common pitfalls include lack of scope control, potential for name collisions, and debugging difficulties due to their text replacement nature.