Today, I found something in legacy code. It has "static new" for one function. It looks like this. class Foo { public static void Do() { Console.WriteLine("Foo.Do"); } } class Bar: Foo { public static new void Do() { Console.WriteLine("Bar.Do"); } } I don't understand the static new modifier fo...
banging my head on this one. I have a static method with fields in a class similar to this: public MyClass { private static string m_myString; public static MyClass() { m_myString = "hello world"; } public static void MyUsefulMethod(Foo bar) { DoStuffTo(bar); } } In Debug mode, I have no issue but...
I'm using Boost.Serialization to archive the contents of a class. One of the member variables is a static std::vector. Archiving and restoring goes fine, but I was kind of hoping the library would save static members only once, it appears that, judging by the filesize, the static members are fully saved for each archived instance. This...
I am unsure about the scope of one static inner class of a non-static class. In the lines below, would the variable DataContextCreator.Instance (part of a Singleton pattern) point to the same PDataContext instance for all Page objects/page requests or would each object have its own instance? public class Page : System.Web.UI.Page { ...
Just a quick and simple question, but couldn't find it in any documentation. template <class T> T* Some_Class<T>::Some_Static_Variable = NULL; It compiles with g++, but I am not sure if this is valid usage. Is it? ...
I'm trying to serve static files for download in a django application, I figured that I'd put the static files in /media/files and have Apache set the content-type header to application/octet-stream (the files to download are going to be word files but I'll work out the details later). To do this I activated mod_headers and then in the ...
I'll be writing a small desktop app for a client that has WinXP machines and they won't be installing the .NET framework (at least not for me). So my choices are limited to either C++ or VB6, neither of which sound great. I remember reading back in the day that Mono came up with a static compiler, but recently the only thing I could f...
Hi, I have the following code: class SuperClass { public static String getName() { return "super"; } } class SubClass extends SuperClass { public static String getName() { return "sub"; } } public class Dummy<T extends SuperClass> { public void print() { System.out.println("SuperClass: " + SuperClass.getName()); ...
If you have two threads invoking a static function at the same moment in time, is there a concurrency risk? And if that function uses a static member of the class, is there even a bigger problem? Are the two calls seperated from each other? (the function is like copied for the two threads?) Are they automatically queued? For instance...
Once a class is loaded is there a way to invoke static initializers again? public class Foo { static { System.out.println("bar"); } } Edit: I need to invoke the static initializer because I didn't write the original class and the logic I need to invoke is implemented in the static initializer. ...
I have a hierarchy of classes. The base class uses some tuning parameters that are loadable from file (and reloadable during runtime). Each derived class may add some additional parameters. I am looking for a way to allocate a correctly sized parameters array in the base constructor, so that I don't have to deallocate and reallocate ...
I've defined a helper class to keep track of a small dictionary of items. it stores this information as a static property, which is initialized in the static constructor. the list is very small and will never change so I chose this method over xml or a db lookup table... however what I would like to know is, will this static property re...
Given a group of objects that have a common set of properties and methods in support of given domain logic, is there a way of enforcing the presence of certain static methods on these objects? I have concluded that implementing an interface does not achieve this (methods are instance only) and that static methods can not be marked overr...
I have a template class which has a static pointer-to-member, like this: template<class T, T* T::*nextptr> class Queue { T* head; T* tail; static T* T::*pnext; }; My question is how to write the initializer of the static pointer-to-member. I tried the obvious case: template<class T, T* T::*nextptr> T* Queue<T, nextptr>::*...
Is there any difference in these two? If so, what exactly is the difference? Assume they are in a C function that may be called multiple times. declare and assign in same statement static uint32_t value = x; // x varies and may be passed into function. declare in one statement and assign in next statment. static uint32_t value; v...
Please see code below. The destructors are never called. Anyone know why and how this can be rectified? public partial class Form1 : Form { private Goo goo; public Form1() { InitializeComponent(); goo = Goo.GetInstance(); } } public class Goo { private foo f = new foo(); private sta...
I'm looking for the best Design for the following situation. We have many objects form one class, for instance a picture frame. Now each of the picture frames can display 3 types of picture. 1) a face 2) a screenshot 3) empty Thats easy: public enum PictureMode { Face, Screen, None } public class PictureFrame { priva...
Isn't a class with all static members/methods a kind of singleton design pattern? Is there any disadvantage in particular of having such classes? A detailed explanation would help. ...
Dear all,, I want to know what could be the equivalent keyword in java which could perform same function as "Static keyword in C".. I want to do recursion in java, performing same function that a static keyword in C does... Please help.. ...
Hello, I turned my C++ Dynamic link library into Static library just to acquire more knowledge. My question is how can I use the .obj file to compile both projects with C# express/MS visual studio? ...