I have an instance on my stage that I dragged from my library at design time. This instance links to a custom class who's constructor takes an argument. package { import flash.display.MovieClip; import flash.media.Sound; public class PianoKey extends MovieClip { var note:Sound; public function PianoKey...
Hi, I am building an object through castle windsor and my constructor accepts an argument of a custom type. How do I pass it to my object. public class ArgumentClass { int value1; string value2; } public interface IInterface { } public class CClass : IInterface { public CClass(ArgumentClass arg) { } } All my configuration is...
These are the class definitions <?php abstract class MyTemplate { protected $arrayOfSpaces; protected $arrayOfVariables; protected $output; protected abstract function __construct(); function outputHTML(){ echo $output; //Apparently, the problem is HERE. <<<<>>>>> } } class MyTemplateMain extends MyTemplate { ...
Hi! I am experiencing a memory leak with a code similar to the one below (it's a simulation with different inputs at every loop). The problem The object Object_XXX is quite complex, with connections to databases and other objects populated with data from databases aswell. for(int i=0; i<MAX; i=i+1){ Class_XXX Object_XXX ...
class Foo { Foo(int val) { /* Do some initialization */ } Foo() { /* Do nothing */ } }; union Bar { Foo foo; }; That code generates this error: error C2620: member 'Bar::foo' of union 'Bar' has user-defined constructor or non-trivial default constructor I understand why you'd throw that error if the constructor actually d...
I need access to the Class of the object being constructed in its own constructor (for various detailed reasons I don't think are relevant to my question). I want something like this class Foo(val i:Int) class Bar extends Foo(this.getClass.getName.length) val b = new Bar println(b.i) to print 3 ("Bar".length). But it doesn't. If th...
hello Suppose: struct P { P(int v); }; int v; P p = 0; // allow P q = v; // Fail at compile time How can achieve that? any template trick? I am trying to write allocator which has special pointer properties. unfortunately std implementation uses implicit conversion from int to NULL pointer: { return __n != 0 ? _M_impl.allocat...
This code doesn't behave how I expect it to. #include<iostream> using namespace std; class Class { Class() { cout<<"default constructor called"; } ~Class() { cout<<"destrutor called"; } }; int main() { Class object(); } I expected the output 'default constructor called', but I did not...
I'm deriving a class which is available from a C++ library, and the constructor of my subclass will only work properly when I execute some code before the base class constructor gets called. (Yes, I know, bad design, but I cannot influence how the library which I'm using works.) If the base class constructor takes arguments, doing this ...
I'm a C# programmer trying to hack at a Java project. Here's an anonymized extract from our production code. It works (I think). Note that this is the whole class. public class Y extends X { public Z m_Z; protected void readCustomData (CustomStream reader, boolean forUpdate) throws IOException, FTGException { super.readCu...
Private _bgWorker As BackgroundWorker = Nothing Private _bgWorkerMessage As String = String.Empty Private _bgPercentComplete As Integer = 0 Private _dictQueries As Dictionary(Of String, String) = New Dictionary(Of String, String) Public Sub New() _dictQueries.Add("IPB", "") _dictQueries.Add("Figure", "") _dictQueries.Add("Pa...
An example would be: XNamespace ns = "my namespace" Why not?: XNamespace ns = new XNamespace ( "my namespace" ) What's the idea behind using implicit/explicit convertions instead of constructors? Convenience? Is there a guideline for this? ...
Possible Duplicate: Why do we not have a virtual constructor? I know this has been asked before but I didn't understand the complex technical words used in the other answers. I read on a community the reason that constructors cannot be virtual is The ‘virtual’ mechanism works on a logically complete (completely constructe...
I have always felt that in general the main work of a class should be done in its instance methods, while the constructor should only get the instance into a usable inital state. But I find that in practice there are situations where it seems to make more sense to put essentially all the actual work into the constructor. One example: I...
I'm inheriting a class and I would like to call one of its constructors. However, I have to process some stuff (that doesn't require anything of the base class) before calling it. Is there any way I can just call it later instead of calling it on the initializer list? I believe this can be done in Java and C# but I'm not sure about C++. ...
I have a character model class which has this structure: @interface CharacterModel : NSObject { // parent of this character CharacterModel *parentChar; // basic details NSString *fname, *sname, *nick; NSString *char_type; // categories of characters: dwarf, etc // health int health; // cash double...
Is there any nice pattern in .Net for ensuring that iDisposable fields owned by an object will get disposed if an exception is thrown during construction, possibly during a field initializer? The only way to surround field initializers in a Try/Catch block is if the block is outside the call to the constructor, which will make it rather...
If I have these 2 constructors for MyClass: MyClass(int n1); MyClass(int n1, int n2); and an overloaded (non-member) operator+: MyClass operator+(MyClass m1, const MyClass& m2); This enables me to write code like this: MyClass m; 5 + m: which I guess uses implicit cast through the defined constructor, correct? Is there anyway t...
Are there general reasons not to deal with Document's and Element's prototype? I like to create my own little framework, because my current project doesn't need the mass of features of the existing frameworks. I don't need to support browsers which don't support Element/Document-constructor and also will not execute scripts that are no...
What are the differences between the two? I've only used one kind of constructor and I believe it's the static constructor. Only familiar with C++ and Java. ...