UInt32.CompareTo() Method in C# with Examples

The UInt32.CompareTo() method in C# is used to compare the current instance to a specified object or UInt32 and returns an indication of their relative values. This method is essential for sorting operations and determining the ordering relationship between unsigned 32-bit integers.

Syntax

The UInt32.CompareTo() method has two overloads −

public int CompareTo(object value);
public int CompareTo(uint value);

Parameters

• value (object) − An object to compare, or null.

• value (uint) − An unsigned integer to compare.

Return Value

The method returns an int that indicates the relative order of the values being compared −

• Less than zero − The current instance is less than the specified value.

• Zero − The current instance is equal to the specified value.

• Greater than zero − The current instance is greater than the specified value.

Using CompareTo() with UInt32 Values

Example

using System;

public class Demo {
    public static void Main() {
        uint val1 = 25;
        uint val2 = 55;
        int res = val1.CompareTo(val2);
        Console.WriteLine("Return value (comparison) = " + res);
        if (res > 0)
            Console.WriteLine("val1 > val2");
        else if (res < 0)
            Console.WriteLine("val1 < val2");
        else
            Console.WriteLine("val1 = val2");
    }
}

The output of the above code is −

Return value (comparison) = -1
val1 < val2

Using CompareTo() with Object Parameter

Example

using System;

public class Demo {
    public static void Main() {
        uint val1 = 25;
        object val2 = (uint)2;
        int res = val1.CompareTo(val2);
        Console.WriteLine("Return value (comparison) = " + res);
        if (res > 0)
            Console.WriteLine("val1 > val2");
        else if (res < 0)
            Console.WriteLine("val1 < val2");
        else
            Console.WriteLine("val1 = val2");
    }
}

The output of the above code is −

Return value (comparison) = 1
val1 > val2

Using CompareTo() for Sorting

Example

using System;

public class Demo {
    public static void Main() {
        uint[] values = { 45, 12, 78, 23, 56 };
        Console.WriteLine("Original array:");
        foreach (uint val in values) {
            Console.Write(val + " ");
        }
        
        Array.Sort(values, (x, y) => x.CompareTo(y));
        Console.WriteLine("\nSorted array:");
        foreach (uint val in values) {
            Console.Write(val + " ");
        }
    }
}

The output of the above code is −

Original array:
45 12 78 23 56 
Sorted array:
12 23 45 56 78

Conclusion

The UInt32.CompareTo() method provides a standardized way to compare unsigned 32-bit integers, returning -1, 0, or 1 to indicate less than, equal to, or greater than relationships. This method is particularly useful for sorting operations and implementing custom comparison logic in applications.