What are C++11 iterators and how do I use them?

What are C++11 iterators and how do I use them?

C++11 iterators are objects that allow you to traverse through the elements of a container, like vectors or lists. They provide a way to access elements without exposing the underlying structure.

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

Sure! Here's a simple example:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec = {1, 2, 3, 4, 5};
    for (auto it = vec.begin(); it != vec.end(); ++it) {
        std::cout << *it << ' ';
    }
    return 0;
}

What are the advantages of using iterators over traditional indexing?

Iterators provide a uniform way to access elements across different container types, enhance code readability, and can work with algorithms in the Standard Template Library (STL) seamlessly.

Are there different types of iterators in C++11?

Yes, C++11 has several types of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, and random access iterators, each with different capabilities.