What are container iterators in C++?

What are container iterators in C++?

Container iterators in C++ are objects that allow you to traverse the elements of a container, like vectors or lists.

Can you give me an example of how to use 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 << ' ';
    }
    return 0;
}

What are the different types of iterators available in C++?

C++ provides several types of iterators: input iterators, output iterators, forward iterators, bidirectional iterators, and random access iterators.

How do iterators improve code readability?

Iterators abstract the traversal of containers, making the code cleaner and more readable by separating the logic of iteration from the container's implementation.