How do I use iterators with vectors in C++11?

How do I use iterators with vectors in C++11?

In C++11, you can use iterators to traverse vectors easily. You can use both the traditional iterator and the range-based for loop.

Can you show me an example of using a traditional iterator?

Sure! Here's a simple example:

#include <iostream>
#include <vector>

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

What about using a range-based for loop?

Using a range-based for loop is even simpler! Here's how you can do it:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec = {1, 2, 3, 4, 5};
    for (const auto& value : vec) {
        std::cout << value << ' ';
    }
    return 0;
}

Are there any advantages to using range-based for loops?

Yes, range-based for loops are more concise and easier to read. They also reduce the risk of errors related to iterator management.