Finding the Index which Points Beyond the Last Element in C#

The Index Structure is introduced in C# 8.0. It represents a type that can be used to index a collection or sequence and it can be started from the start or the end. You are allowed to find the index, which points beyond the last element of the specified collection with the help of End Property provided by the Index struct.

Syntax:

public static property Index End { Index get(); };

Example 1:

// C# program to illustrate how
// to get the End index
using System;

namespace example {

class GFG {

    // Main Method
    static void Main(string[] args)
    {

        // Creating new indexes
        // Using Index() constructor
        var in1 = new Index(1, true);
        var in2 = new Index(3, false);

        // Getting the end index
        var res1 = Index.End;

        // Displaying the index
        Console.WriteLine("Index: {0}", in1);
        Console.WriteLine("Index: {0}", in2);
        Console.WriteLine("End Index: {0}", res1);
    }
}
}

Output:

Index: ^1
Index: 3
End Index: ^0

Example 2:

// C# program to illustrate the
// concept of the End index
using System;

namespace example {

class GFG {

     // Main Method
    static void Main(string[] args)
    {
        string[] greetings = new string[] {"Hello", "Hola", "Namaste",
                                "Bonjour", "Ohayo", "Ahnyounghaseyo"};

        // Get the end index
        var res = Index.End;

        // Checking the given index
        // is the end index or not
        if (res.Equals (^0) == true) {

            Console.WriteLine("The given index is "+
                        "beyond the last element");
        }

        else {

            Console.WriteLine("The given index is not"+
                          " beyond the last element");
        }
    }
}
}

Output:

The given index is beyond the last element