What are the best practices for using iterators in C++11?

What are the best practices for using iterators in C++11?

In C++11, it's important to use range-based for loops when possible, as they simplify syntax and reduce errors.

Can you explain the difference between input, output, and forward iterators?

Sure! Input iterators allow reading data, output iterators allow writing data, and forward iterators can do both while maintaining state.

What are some common pitfalls to avoid when using iterators?

Common pitfalls include dereferencing invalid iterators, modifying containers while iterating, and not checking for end conditions.

How do I implement a custom iterator in C++11?

To implement a custom iterator, define a class that overloads operators like ++, *, and !=, and ensure it meets iterator requirements.