Range Structure in C# 8.0

C# 8.0 introduced a new predefined structure that is known as Range struct. This struct is used to represent a range that has a start and end indexes. It provides a new style to create a range using .. operator. This operator is used to create a range that has a starting and ending index. Also with the help of the Range struct you are allowed to create a variable of the range type.

filter_none

edit
close

play_arrow

link
brightness_4
code

// C# program to illustrate how to create ranges
using System;
  
namespace range_example {
  
class GFG {
  
    // Main Method
    static void Main(string[] args)
    {
        int[] marks = new int[] {23, 45, 67, 88, 99,
                            56, 27, 67, 89, 90, 39};
  
        // Creating variables of range type
        // And initalize the range 
        // varibales with a range
        // Using .. operator
        Range r1 = 1..5;
        Range r2 = 6..8;
  
        var a1 = marks[r1];
        Console.Write("Marks List 1: ");
        foreach(var st_1 in a1)
            Console.Write($" {st_1} ");
  
        var a2 = marks[r2];
        Console.Write("\nMarks List 2: ");
        foreach(var st_2 in a2)
            Console.Write($" {st_2} ");
  
        // Creating a range
        // Using .. operator
        var a3 = marks[2..4];
        Console.Write("\nMarks List 3: ");
        foreach(var st_3 in a3)
            Console.Write($" {st_3} ");
  
        var a4 = marks[4..7];
        Console.Write("\nMarks List 4: ");
        foreach(var st_4 in a4)
            Console.Write($" {st_4} ");
    }
}
}

chevron_right


Output:

Marks List 1:  45  67  88  99 
Marks List 2:  27  67 
Marks List 3:  67  88 
Marks List 4:  99  56  27

Constructor

Constructor Description
Range(Index, Index) This constructor is used to create a new Range instance with the specified starting and ending indexes.

Properties

Property Description
All This property is used to get a Range object that starts from the first element to the end.
End This property is used to get an Index that represents the exclusive end index of the range.
Start This property is used to get the inclusive start index of the Range.

Methods

Method Description
EndAt(Index) This method is used to create a Range object starting from the first element in the collection to a specified end index.
Equals() This method is used to check whether the current range is equal to a specified range.
GetHashCode() This method is used to find the hash code for this instance.
GetOffsetAndLength(Int32) This method is used to calculate the start offset and length of the given range object with the help of a collection length.
StartAt(Index) This method is used to create a new Range instance starting from a specified start index to the end of the collection.

ToString() This method returns the string representation of the current Range object.


My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.