How do I avoid iterator invalidation with std::array?

In C++, iterators are often invalidated when you modify the container they are iterating over. However, with `std::array`, which has a fixed size determined at compile time, iterator invalidation is not a concern due to the nature of how `std::array` handles memory. Since its size is constant, the iterators remain valid as long as the `std::array` itself is not destroyed or goes out of scope.

For safe usage, always ensure that you are not modifying the size of the array, as `std::array` does not support dynamic resizing like `std::vector`. If you must manipulate elements, you can swap or assign new values without risking iteration issues.