What are the best practices for using auto keywords in C++?

What are the best practices for using auto keywords in C++?

Using 'auto' can simplify your code, but it's important to use it wisely. Always ensure that the type is clear from the context.

Can you give me an example of when to use auto?

Sure! If you're iterating over a container, you can use 'auto' to avoid specifying the iterator type explicitly. For example: 'for (auto it = vec.begin(); it != vec.end(); ++it) {...}'.

Are there any situations where I should avoid using auto?

Yes, avoid using 'auto' when the type is not obvious, as it can make the code harder to read. For instance, in complex expressions, it's better to be explicit.

What about performance? Does using auto affect it?

Generally, using 'auto' does not affect performance. The compiler deduces the type at compile time, so it should be as efficient as explicitly stating the type.