CSharpTest.Net
MemberwiseClone Constructor
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CSharpTest.Net.Library Assembly > CSharpTest.Net.Cloning Namespace > MemberwiseClone Class : MemberwiseClone Constructor

Glossary Item Box

Provides a deep-copy, field-level duplication of any object

Syntax

Visual Basic (Declaration) 
Public Function New()
C# 
public MemberwiseClone()

Example

Library/Library.Test/TestCloning.cs

C#Copy Code
const int Reps = 1000;
TestObject test = TestObject.Create();
object result;

Stopwatch timer = new Stopwatch();
timer.Start();

for (int i = 0; i < Reps; i++)
{
    BinaryFormatter bf = new BinaryFormatter();
    using (MemoryStream m = new MemoryStream())
    {
        bf.Serialize(m, test);
        m.Position = 0;
        result = bf.Deserialize(m);
    }
}

timer.Stop();
Console.WriteLine("Elapsed: {0,10} (100%)", timer.ElapsedTicks);
long percentof = timer.ElapsedTicks;

timer = new Stopwatch();
timer.Start();

for (int i = 0; i < Reps; i++)
{
    result = new SerializerClone().Clone(test);
}

timer.Stop();
Console.WriteLine("Elapsed: {0,10} ({1}%)", timer.ElapsedTicks, (timer.ElapsedTicks * 100) / percentof);

timer = new Stopwatch();
timer.Start();

for (int i = 0; i < Reps; i++)
{
    result = new MemberwiseClone().Clone(test);
}

timer.Stop();
Console.WriteLine("Elapsed: {0,10} ({1}%)", timer.ElapsedTicks, (timer.ElapsedTicks * 100) / percentof);
VB.NETCopy Code
Const  Reps As Integer = 1000
Dim test As TestObject = TestObject.Create()
Dim result As Object

Dim timer As New Stopwatch()
timer.Start()

Dim i As Integer = 0
While i < Reps
    Dim bf As New BinaryFormatter()
    Using m As New MemoryStream()
        bf.Serialize(m, test)
        m.Position = 0
        result = bf.Deserialize(m)
    End Using
    System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1)
End While

timer.[Stop]()
Console.WriteLine("Elapsed: {0,10} (100%)", timer.ElapsedTicks)
Dim percentof As Long = timer.ElapsedTicks

timer = New Stopwatch()
timer.Start()

Dim i As Integer = 0
While i < Reps
    result = New SerializerClone().Clone(test)
    System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1)
End While

timer.[Stop]()
Console.WriteLine("Elapsed: {0,10} ({1}%)", timer.ElapsedTicks, (timer.ElapsedTicks * 100) / percentof)

timer = New Stopwatch()
timer.Start()

Dim i As Integer = 0
While i < Reps
    result = New MemberwiseClone().Clone(test)
    System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1)
End While

timer.[Stop]()
Console.WriteLine("Elapsed: {0,10} ({1}%)", timer.ElapsedTicks, (timer.ElapsedTicks * 100) / percentof)

Requirements

Target Platforms: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7

See Also

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