Can you explain C++11 std::list iterator examples?

Can you explain C++11 std::list iterator examples?

Sure! In C++11, the std::list container provides iterators to traverse its elements. Would you like to see some code examples?

Yes, please provide a simple example of using a list iterator.

Here's a basic example:

#include <iostream>
#include <list>

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

This code iterates through the list and prints each element.

What if I want to modify the elements while iterating?

You can modify elements directly through the iterator. For example:

for (std::list<int>::iterator it = myList.begin(); it != myList.end(); ++it) {
    *it *= 2; // Double each element
}

This will change each element in the list to its double.

That makes sense! Can you show me how to use a reverse iterator?

Absolutely! You can use rbegin() and rend() for reverse iteration:

for (std::list<int>::reverse_iterator rit = myList.rbegin(); rit != myList.rend(); ++rit) {
    std::cout << *rit << " ";
}

This will print the elements in reverse order.