Question

There's also a const_iterator type for you to use on things that are const?

Answer 1

Yes, in C++, there is a const_iterator type for use on things that are const.

Step-by-step explanation:

Yes, there is a const_iterator type for use on things that are const. In C++, the const_iterator is used to iterate over a const container, which means it allows you to access the elements of the container but not modify them. It is typically used when you want to ensure that the container remains unchanged during iteration.

For example, if you have a const vector and you want to iterate over its elements, you would use a const_iterator. Here's an example:

const std::vector<int> v = {1, 2, 3};

for(auto it = v.cbegin(); it != v.cend(); ++it) {
std::cout << *it << std::endl;
}