What are the differences between iterators and containers in C++11?

What are the differences between iterators and containers in C++11?

In C++11, containers are data structures that store objects, while iterators are objects that allow traversal of these containers.

Can you give me examples of common containers?

Sure! Common containers in C++11 include std::vector, std::list, std::map, and std::set.

How do iterators work with these containers?

Iterators provide a way to access elements in a container sequentially without exposing the underlying structure. For example, you can use begin() and end() methods to get iterators for a vector.

Are there different types of iterators?

Yes, there are several types of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, and random access iterators.

Which iterator type should I use for a specific container?

It depends on the container and the operations you need. For example, std::vector supports random access iterators, while std::list supports bidirectional iterators.