visual c++ - When to use the __gc keyword on managed C++ classes? -

-

i have c++ project i've wrapped .net classes using c++/cli. i'm defining wrapper classes in managed c++. need mark classes __gc in order classes garbage collected? or .net framework automatically gc classes since managed classes?

this how declared

public ref class player {

do need this? 

__gc class player { .. }

the keyword __gc used in previous version (iirc, till vs2003). new context specific keywords (like ref class, value struct) added. newer compilers (vs2005+) understand , suggest use newer keywords. context keyword ref class enough state class managed class. managed classes can allocated using gcnew keyword. compiler raise error of new used managed-classes. vc++ (/clr), stack-semantics avaible.

that means following valid:

public ref class someclass{};  void foo() { someclass cls; // on stack!  }

Comments

Post a Comment

Popular posts from this blog

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:...
Read more

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5); ...
Read more