Is there inifinite list in c#? [closed]

I found an article on the subject here.

Essentially you can utilize the yield keyword to programmatically create the next element of your list.

Using IEnumerable and yield return you can easily create infinite sets.

static IEnumerable<uint> UpDown(uint min = uint.MinValue, uint max = uint.MaxValue, uint step = 1)
{
    if (min > max)
        throw new ArgumentOutOfRangeException("min", "'min' must be less than or equal to 'max'");
    var current = min;
    var last = current;
    var up = true;
    while (true)
    {
        yield return current;
        current += (uint)(up ? step : -step);
        if (up && (current >= max || current < last))
        {
            up = !up;
            current = max;
        }
        else if (!up && (current <= min || current > last))
        {
            up = !up;
            current = min;
        }
        last = current;
    }
}

static IEnumerable<int> Random()
{
    while (true)
        yield return 4;
}

The type that most closely corresponds to a lazy Haskell-like list, is IEnumerable<out T>.