UInt64.cs source code in C# .NET

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Code:

/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / UInt64.cs / 1 / UInt64.cs

                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  UInt64 
**
** Purpose: This class will encapsulate an unsigned long and 
**          provide an Object representation of it.
**
**
===========================================================*/ 
namespace System {
    using System.Globalization; 
    using System; 
    using System.Runtime.InteropServices;
 
    // Wrapper for unsigned 64 bit integers.
    [Serializable, CLSCompliant(false), System.Runtime.InteropServices.StructLayout(LayoutKind.Sequential)]
[System.Runtime.InteropServices.ComVisible(true)]
    public struct UInt64 : IComparable, IFormattable, IConvertible 
#if GENERICS_WORK
        , IComparable, IEquatable 
#endif 
    {
        private ulong m_value; 

        public const ulong MaxValue = (ulong) 0xffffffffffffffffL;
        public const ulong MinValue = 0x0;
 
        // Compares this object to another object, returning an integer that
        // indicates the relationship. 
        // Returns a value less than zero if this  object 
        // null is considered to be less than any instance.
        // If object is not of type UInt64, this method throws an ArgumentException. 
        //
        public int CompareTo(Object value) {
            if (value == null) {
                return 1; 
            }
            if (value is UInt64) { 
                // Need to use compare because subtraction will wrap 
                // to positive for very large neg numbers, etc.
                ulong i = (ulong)value; 
                if (m_value < i) return -1;
                if (m_value > i) return 1;
                return 0;
            } 
            throw new ArgumentException (Environment.GetResourceString("Arg_MustBeUInt64"));
        } 
 
        public int CompareTo(UInt64 value) {
            // Need to use compare because subtraction will wrap 
            // to positive for very large neg numbers, etc.
            if (m_value < value) return -1;
            if (m_value > value) return 1;
            return 0; 
        }
 
        public override bool Equals(Object obj) { 
            if (!(obj is UInt64)) {
                return false; 
            }
            return m_value == ((UInt64)obj).m_value;
        }
 
        public bool Equals(UInt64 obj)
        { 
            return m_value == obj; 
        }
 
        // The value of the lower 32 bits XORed with the uppper 32 bits.
        public override int GetHashCode() {
            return ((int)m_value) ^ (int)(m_value >> 32);
        } 

        public override String ToString() { 
            return Number.FormatUInt64(m_value, null, NumberFormatInfo.CurrentInfo); 
        }
 
        public String ToString(IFormatProvider provider) {
            return Number.FormatUInt64(m_value, null, NumberFormatInfo.GetInstance(provider));
        }
 
        public String ToString(String format) {
            return Number.FormatUInt64(m_value, format, NumberFormatInfo.CurrentInfo); 
        } 

        public String ToString(String format, IFormatProvider provider) { 
            return Number.FormatUInt64(m_value, format, NumberFormatInfo.GetInstance(provider));
        }

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

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

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

    	[CLSCompliant(false)]
        public static ulong Parse(String s, NumberStyles style, IFormatProvider provider) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Number.ParseUInt64(s, style, NumberFormatInfo.GetInstance(provider));
        } 
 
        [CLSCompliant(false)]
        public static Boolean TryParse(String s, out UInt64 result) { 
            return Number.TryParseUInt64(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
        }

        [CLSCompliant(false)] 
        public static Boolean TryParse(String s, NumberStyles style, IFormatProvider provider, out UInt64 result) {
            NumberFormatInfo.ValidateParseStyleInteger(style); 
            return Number.TryParseUInt64(s, style, NumberFormatInfo.GetInstance(provider), out result); 
        }
 
        //
        // IValue implementation
        //
 
        public TypeCode GetTypeCode() {
            return TypeCode.UInt64; 
        } 

        ///  
        bool IConvertible.ToBoolean(IFormatProvider provider) {
            return Convert.ToBoolean(m_value);
        }
 
        /// 
        char IConvertible.ToChar(IFormatProvider provider) { 
            return Convert.ToChar(m_value); 
        }
 
        /// 
        sbyte IConvertible.ToSByte(IFormatProvider provider) {
            return Convert.ToSByte(m_value);
        } 

        ///  
        byte IConvertible.ToByte(IFormatProvider provider) { 
            return Convert.ToByte(m_value);
        } 

        /// 
        short IConvertible.ToInt16(IFormatProvider provider) {
            return Convert.ToInt16(m_value); 
        }
 
        ///  
        ushort IConvertible.ToUInt16(IFormatProvider provider) {
            return Convert.ToUInt16(m_value); 
        }

        /// 
        int IConvertible.ToInt32(IFormatProvider provider) { 
            return Convert.ToInt32(m_value);
        } 
 
        /// 
        uint IConvertible.ToUInt32(IFormatProvider provider) { 
            return Convert.ToUInt32(m_value);
        }

        ///  
        long IConvertible.ToInt64(IFormatProvider provider) {
            return Convert.ToInt64(m_value); 
        } 

        ///  
        ulong IConvertible.ToUInt64(IFormatProvider provider) {
            return m_value;
        }
 
        /// 
        float IConvertible.ToSingle(IFormatProvider provider) { 
            return Convert.ToSingle(m_value); 
        }
 
        /// 
        double IConvertible.ToDouble(IFormatProvider provider) {
            return Convert.ToDouble(m_value);
        } 

        ///  
        Decimal IConvertible.ToDecimal(IFormatProvider provider) { 
            return Convert.ToDecimal(m_value);
        } 

        /// 
        DateTime IConvertible.ToDateTime(IFormatProvider provider) {
            throw new InvalidCastException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("InvalidCast_FromTo"), "UInt64", "DateTime")); 
        }
 
        ///  
        Object IConvertible.ToType(Type type, IFormatProvider provider) {
           return Convert.DefaultToType((IConvertible)this, type, provider); 
        }
    }
}
                        

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