Span.cs

using System;
using System.Collections.Generic;

namespace SpanOfT_Dev
{
	public class Program
	{
		private static void Main(string[] args)
		{
			int[] arr = { 1, 2, 3, 4, 5 };
			Span<int> span = arr.AsSpan();

			var destination = new Span<int>(new int[arr.Length]);
			span.CopyTo(destination);

			span.Clear();

			Console.WriteLine("Array:");
			foreach (var i in arr)
			{
				Console.WriteLine(i);
			}

			Console.WriteLine("Span:");
			foreach (var i in span)
			{
				Console.WriteLine(i);
			}

			Console.WriteLine("Destination Span:");
			foreach (var i in destination)
			{
				Console.WriteLine(i);
			}
		}
	}
}