Will run a for loop of an arbitrary nesting depth

ForLoop.cs

 public class ForLoop
    {
        private int[] _indices;
        private int[] _boundaries;
        private Action<int[]> _action;

        public ForLoop(int[] indices, int[] bondaries, Action<int[]> action)
        {
            _indices = indices;
            _boundaries = bondaries;
            _action = action;
        }

        public void Run()
        {
            for (int i = 0; i < _indices.Length; i++)
            {
                int length = _boundaries[i];
                for (; _indices[i] < length; _indices[i]++)
                {
                    _action(_indices);
                }
            }
        }
    }