C# UInt64 Struct

In C#, the UInt64 struct represents a 64-bit unsigned integer, commonly referred to as the ulong data type. It is defined in the System namespace and provides various methods for mathematical computations, parsing, and type conversion. Since it is an unsigned type, it only holds non-negative values.

• Range: UInt64 ranges from 0 to 18,446,744,073,709,551,615.
• Bitwise Operations: It supports bitwise operations like AND (&), OR (|), XOR (^), NOT (~), and shifts (<<, >>).
• Convert and Math Class Compatibility: It works with methods from the Convert and Math classes for operations like rounding, absolute value, and power calculations.

Fields

Example: Working with UInt64 Fields

// C# program to illustrate the 
// fields of UInt64 struct
using System;

class Geeks
{
    static public void Main() 
    {
        // Unsigned 64-bit integer 
        ulong val = 18446744073709551615;

        // Checking the unsigned integer 
        if (val.Equals(UInt64.MinValue))  
        { 
            Console.WriteLine("Equal to MinValue"); 
        } 
        else if (val.Equals(UInt64.MaxValue))  
        { 
            Console.WriteLine("Equal to MaxValue"); 
        } 
        else 
        { 
            Console.WriteLine("Not Equal"); 
        } 
    }
}

Equal to MaxValue

Methods

Example: Using GetHashCode() Method

// C# program to demonstrate how to get the 
// hash code of the 64-bit Unsigned integer
using System;

class Geeks
{
    static public void Main() 
    {
        // UInt64 variable 
        ulong val = 3654121225155;

        // Get the hash code using GetHashCode Method
        int res = val.GetHashCode();

        Console.WriteLine("The hash code of val is: {0}", res); 
    } 
}

The hash code of val is: -895944559

Important Points:

• UInt64 is a 64-bit unsigned integer, which means it can only store non-negative numbers.
• It provides a variety of methods to handle comparisons, parsing, and hashing.
• Common fields include MaxValue (the largest value it can store) and MinValue (the smallest value, which is 0).
• Useful methods like CompareTo(), Equals(), ToString(), and TryParse() help in comparing and converting UInt64 values.