What are the best practices for using iterators in C++?

What are the best practices for using iterators in C++?

Some best practices include using standard library iterators, avoiding iterator invalidation, and ensuring proper iterator types.

Can you explain iterator invalidation?

Iterator invalidation occurs when the underlying container is modified, making existing iterators unusable. It's crucial to manage this.

What are some common mistakes to avoid with iterators?

Common mistakes include dereferencing invalidated iterators, using the wrong iterator type, and not checking for end conditions.

How do I choose the right type of iterator?

Choose based on your needs: use input iterators for reading, output for writing, and random access for fast access to elements.