Mega Code Archive
C# always creates a structure instance as a value-type variable even using the new operator
<![CDATA[
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
//
// ValType.cs -- Demonstrates that C# always creates a structure instance as
// a value-type variable even using the new operator.
// Compile this program using the following command line:
// C:>csc ValType.cs
//
namespace nsValType
{
using System;
public struct POINT
{
public int cx;
public int cy;
}
public class ValType
{
static public void Main()
{
POINT point1;
point1.cx = 42;
point1.cy = 56;
ModifyPoint (point1);
Console.WriteLine ("In Main() point2 = ({0}, {1})", point1.cx, point1.cy);
POINT point2 = new POINT ();
// point2.cx = 42;
// point2.cy = 56;
Console.WriteLine ();
ModifyPoint (point2);
Console.WriteLine ("In Main() point2 = ({0}, {1})", point2.cx, point2.cy);
}
static public void ModifyPoint (POINT pt)
{
pt.cx *= 2;
pt.cy *= 2;
Console.WriteLine ("In ModifyPoint() pt = ({0}, {1})", pt.cx, pt.cy);
}
}
}
]]>