What are STL iterators in C++11?

Can you explain what STL iterators are in C++11?

STL iterators are objects that allow you to traverse the elements of a container in C++11, similar to pointers.

What are the different types of iterators available?

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

How do I use an iterator with a vector?

You can use iterators with a vector by calling the begin() and end() methods to get the start and end iterators.

Can you give me a code example of using an iterator 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 << ' ';
    }
}

This will print the elements of the vector.