What are advanced iterators in C++?

What are advanced iterators in C++?

Advanced iterators in C++ include types like reverse iterators, constant iterators, and stream iterators, which provide more flexibility.

Can you explain how reverse iterators work?

Sure! Reverse iterators allow you to traverse a container in reverse order. You can use the rbegin() and rend() functions to get the reverse iterator for the beginning and end.

What is the difference between a regular iterator and a constant iterator?

A regular iterator allows modification of the elements it points to, while a constant iterator prevents any modification, ensuring the data remains unchanged.

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

To implement a custom iterator, you need to define a class that overloads operators like ++, *, and !=, and maintain the state of the iteration.

Can you give an example of using a stream iterator?

Certainly! Stream iterators can be used to read from or write to streams. For example, you can use std::istream_iterator to read data from an input stream.