What are vector iterators in C++11?

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

Sure! Vector iterators in C++11 are used to traverse elements in a vector. They provide a way to access elements sequentially without exposing the underlying structure.

How do I use vector iterators in my code?

You can use vector iterators by calling the begin() and end() methods on a vector. For example:

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

What are the advantages of using iterators over traditional indexing?

Iterators provide a more generic way to traverse containers, allowing for code that works with different types of containers. They also help avoid out-of-bounds errors and can be used with algorithms from the STL.

Can you give me an example of using iterators with algorithms?

Certainly! You can use iterators with algorithms like std::sort. For example:

std::vector<int> vec = {4, 1, 3, 2};
std::sort(vec.begin(), vec.end());
``` This sorts the vector in ascending order.