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 enhanced functionality.

Can you explain how reverse iterators work?

Sure! Reverse iterators allow you to traverse a container in reverse order. You can create one using the rbegin() and rend() methods.

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 modifications, ensuring the data remains unchanged.

How do I use stream iterators for input and output?

Stream iterators can be used with std::istream_iterator for input and std::ostream_iterator for output, allowing you to read from and write to streams easily.

Can you give an example of using iterators with a vector?

Certainly! You can use iterators to loop through a vector like this: for(auto it = vec.begin(); it != vec.end(); ++it) { std::cout << *it; }.