How do I iterate safely and efficiently with std::forward_list?

Iterating safely and efficiently with std::forward_list in C++ can be done using the provided iterators. The std::forward_list is a singly linked list that allows for efficient insertions and deletions, but it requires careful iteration due to its structure. Below is an example demonstrating how to iterate over a std::forward_list while ensuring safe operations.


    #include <iostream>
    #include <forward_list>

    int main() {
        std::forward_list<int> flist = {1, 2, 3, 4, 5};
        
        for (auto it = flist.begin(); it != flist.end(); ) {
            std::cout << *it << " ";
            ++it; // Move to the next element safely
        }
        
        return 0;
    }