SequenceRange.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Channels / SequenceRange.cs / 1 / SequenceRange.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Channels
{ 
    using System.Globalization;
 
    struct SequenceRange 
    {
        // fields 
        Int64 lower;
        Int64 upper;

        // constructors 
        public SequenceRange(Int64 number): this(number, number)
        { 
        } 

        public SequenceRange(Int64 lower, Int64 upper) 
        {
            if (lower < 0)
            {
                DiagnosticUtility.DebugAssert("Argument lower cannot be negative."); 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
            } 
 
            if (lower > upper)
            { 
                DiagnosticUtility.DebugAssert("Argument upper cannot be less than argument lower.");
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
            }
 
            this.lower = lower;
            this.upper = upper; 
        } 

        // properties 
        public Int64 Lower
        {
            get { return this.lower; }
        } 

        public Int64 Upper 
        { 
            get { return this.upper; }
        } 

        public static bool operator ==(SequenceRange a, SequenceRange b)
        {
            return (a.lower == b.lower) && (a.upper == b.upper); 
        }
 
        public static bool operator !=(SequenceRange a, SequenceRange b) 
        {
           return !(a == b); 
        }

        public bool Contains(Int64 number)
        { 
            return (number >= this.lower && number <= this.upper);
        } 
 
        public bool Contains(SequenceRange range)
        { 
            return (range.Lower >= this.lower && range.Upper <= this.upper);
        }

        public override bool Equals(object obj) 
        {
            if (obj == null) 
            { 
                return false;
            } 
            else if (obj is SequenceRange)
            {
                return this == (SequenceRange)obj;
            } 
            else
            { 
                return false; 
            }
        } 

        public override int GetHashCode()
        {
            Int64 hashCode = (this.upper ^ (this.upper - this.lower)); 
            return (int) ((hashCode << 32) ^ (hashCode >> 32));
        } 
 
        public override string ToString()
        { 
            return string.Format(CultureInfo.InvariantCulture, "{0}-{1}", this.lower, this.upper);
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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