UInt64.cs

using System.Globalization;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
using System.Security;

namespace System
{
    [Serializable]
    [CLSCompliant(false)]
    [ComVisible(true)]
    [__DynamicallyInvokable]
    public struct UInt64 : IComparable, IFormattable, IConvertible, IComparable<ulong>, IEquatable<ulong>
    {
        private ulong m_value;

        [__DynamicallyInvokable]
        public const ulong MaxValue = 18446744073709551615uL;

        [__DynamicallyInvokable]
        public const ulong MinValue = 0uL;

        public int CompareTo(object value)
        {
            if (value == null)
            {
                return 1;
            }
            if (value is ulong)
            {
                ulong num = (ulong)value;
                if (this < num)
                {
                    return -1;
                }
                if (this > num)
                {
                    return 1;
                }
                return 0;
            }
            throw new ArgumentException(Environment.GetResourceString("Arg_MustBeUInt64"));
        }

        [__DynamicallyInvokable]
        public int CompareTo(ulong value)
        {
            if (this < value)
            {
                return -1;
            }
            if (this > value)
            {
                return 1;
            }
            return 0;
        }

        [__DynamicallyInvokable]
        public override bool Equals(object obj)
        {
            if (!(obj is ulong))
            {
                return false;
            }
            return this == (ulong)obj;
        }

        [NonVersionable]
        [__DynamicallyInvokable]
        public bool Equals(ulong obj)
        {
            return this == obj;
        }

        [__DynamicallyInvokable]
        public override int GetHashCode()
        {
            return (int)this ^ (int)(this >> 32);
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public override string ToString()
        {
            return Number.FormatUInt64(this, null, NumberFormatInfo.CurrentInfo);
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public string ToString(IFormatProvider provider)
        {
            return Number.FormatUInt64(this, null, NumberFormatInfo.GetInstance(provider));
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public string ToString(string format)
        {
            return Number.FormatUInt64(this, format, NumberFormatInfo.CurrentInfo);
        }

        [SecuritySafeCritical]
        [__DynamicallyInvokable]
        public string ToString(string format, IFormatProvider provider)
        {
            return Number.FormatUInt64(this, format, NumberFormatInfo.GetInstance(provider));
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static ulong Parse(string s)
        {
            return Number.ParseUInt64(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static ulong Parse(string s, NumberStyles style)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Number.ParseUInt64(s, style, NumberFormatInfo.CurrentInfo);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static ulong Parse(string s, IFormatProvider provider)
        {
            return Number.ParseUInt64(s, NumberStyles.Integer, NumberFormatInfo.GetInstance(provider));
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static ulong Parse(string s, NumberStyles style, IFormatProvider provider)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Number.ParseUInt64(s, style, NumberFormatInfo.GetInstance(provider));
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static bool TryParse(string s, out ulong result)
        {
            return Number.TryParseUInt64(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
        }

        [CLSCompliant(false)]
        [__DynamicallyInvokable]
        public static bool TryParse(string s, NumberStyles style, IFormatProvider provider, out ulong result)
        {
            NumberFormatInfo.ValidateParseStyleInteger(style);
            return Number.TryParseUInt64(s, style, NumberFormatInfo.GetInstance(provider), out result);
        }

        public TypeCode GetTypeCode()
        {
            return TypeCode.UInt64;
        }

        [__DynamicallyInvokable]
        bool IConvertible.ToBoolean(IFormatProvider provider)
        {
            return Convert.ToBoolean(this);
        }

        [__DynamicallyInvokable]
        char IConvertible.ToChar(IFormatProvider provider)
        {
            return Convert.ToChar(this);
        }

        [__DynamicallyInvokable]
        sbyte IConvertible.ToSByte(IFormatProvider provider)
        {
            return Convert.ToSByte(this);
        }

        [__DynamicallyInvokable]
        byte IConvertible.ToByte(IFormatProvider provider)
        {
            return Convert.ToByte(this);
        }

        [__DynamicallyInvokable]
        short IConvertible.ToInt16(IFormatProvider provider)
        {
            return Convert.ToInt16(this);
        }

        [__DynamicallyInvokable]
        ushort IConvertible.ToUInt16(IFormatProvider provider)
        {
            return Convert.ToUInt16(this);
        }

        [__DynamicallyInvokable]
        int IConvertible.ToInt32(IFormatProvider provider)
        {
            return Convert.ToInt32(this);
        }

        [__DynamicallyInvokable]
        uint IConvertible.ToUInt32(IFormatProvider provider)
        {
            return Convert.ToUInt32(this);
        }

        [__DynamicallyInvokable]
        long IConvertible.ToInt64(IFormatProvider provider)
        {
            return Convert.ToInt64(this);
        }

        [__DynamicallyInvokable]
        ulong IConvertible.ToUInt64(IFormatProvider provider)
        {
            return this;
        }

        [__DynamicallyInvokable]
        float IConvertible.ToSingle(IFormatProvider provider)
        {
            return Convert.ToSingle(this);
        }

        [__DynamicallyInvokable]
        double IConvertible.ToDouble(IFormatProvider provider)
        {
            return Convert.ToDouble(this);
        }

        [__DynamicallyInvokable]
        decimal IConvertible.ToDecimal(IFormatProvider provider)
        {
            return Convert.ToDecimal(this);
        }

        [__DynamicallyInvokable]
        DateTime IConvertible.ToDateTime(IFormatProvider provider)
        {
            throw new InvalidCastException(Environment.GetResourceString("InvalidCast_FromTo", "UInt64", "DateTime"));
        }

        [__DynamicallyInvokable]
        object IConvertible.ToType(Type type, IFormatProvider provider)
        {
            return Convert.DefaultToType(this, type, provider);
        }
    }
}