What are some advanced topics in C++ STL iterators?

What are some advanced topics in C++ STL iterators?

Advanced topics in C++ STL iterators include iterator adaptors, custom iterators, and understanding iterator categories.

Can you explain iterator adaptors?

Iterator adaptors are wrappers that modify the behavior of existing iterators, like transforming or filtering elements.

What are some examples of iterator adaptors?

Examples include std::transform_iterator, std::reverse_iterator, and std::filter_iterator.

How do I create a custom iterator?

To create a custom iterator, define a class that implements the required iterator traits and overloads necessary operators.

What are iterator categories?

Iterator categories classify iterators based on their capabilities, such as input, output, forward, bidirectional, and random access.