/trunk/Examples/csharp/reference/runme.cs
C# | 73 lines | 32 code | 19 blank | 22 comment | 2 complexity | b6f462e1017f84cf4b071804be912238 MD5 | raw file
Possible License(s): LGPL-2.1, Cube, GPL-3.0, 0BSD, GPL-2.0
- // This example illustrates the manipulation of C++ references in C#.
- using System;
- public class runme {
- public static void Main()
- {
- Console.WriteLine( "Creating some objects:" );
- Vector a = new Vector(3,4,5);
- Vector b = new Vector(10,11,12);
-
- Console.WriteLine( " Created " + a.print() );
- Console.WriteLine( " Created " + b.print() );
-
- // ----- Call an overloaded operator -----
-
- // This calls the wrapper we placed around
- //
- // operator+(const Vector &a, const Vector &)
- //
- // It returns a new allocated object.
-
- Console.WriteLine( "Adding a+b" );
- Vector c = example.addv(a,b);
- Console.WriteLine( " a+b = " + c.print() );
-
- // Note: Unless we free the result, a memory leak will occur if the -noproxy commandline
- // is used as the proxy classes define finalizers which call the Dispose() method. When
- // -noproxy is not specified the memory management is controlled by the garbage collector.
- // You can still call Dispose(). It will free the c++ memory immediately, but not the
- // C# memory! You then must be careful not to call any member functions as it will
- // use a NULL c pointer on the underlying c++ object. We set the C# object to null
- // which will then throw a C# exception should we attempt to use it again.
- c.Dispose();
- c = null;
-
- // ----- Create a vector array -----
-
- Console.WriteLine( "Creating an array of vectors" );
- VectorArray va = new VectorArray(10);
- Console.WriteLine( " va = " + va.ToString() );
-
- // ----- Set some values in the array -----
-
- // These operators copy the value of Vector a and Vector b to the vector array
- va.set(0,a);
- va.set(1,b);
-
- // This works, but it would cause a memory leak if -noproxy was used!
-
- va.set(2,example.addv(a,b));
-
- // Get some values from the array
-
- Console.WriteLine( "Getting some array values" );
- for (int i=0; i<5; i++)
- Console.WriteLine( " va(" + i + ") = " + va.get(i).print() );
-
- // Watch under resource meter to check on this
- Console.WriteLine( "Making sure we don't leak memory." );
- for (int i=0; i<1000000; i++)
- c = va.get(i%10);
-
- // ----- Clean up -----
- // This could be omitted. The garbage collector would then clean up for us.
- Console.WriteLine( "Cleaning up" );
- va.Dispose();
- a.Dispose();
- b.Dispose();
- }
- }