Let me explain it with an example: I have a class S, which is static. I have two dynamic libraries A and B that use S. I have an application, that links with A and B, in this application, how many different instances of S are created? All this using C++ and in Ubuntu. Thanks in advance ...
I want to have the following setup: abstract class Parent { public static String ACONSTANT; // I'd use abstract here if it was allowed // Other stuff follows } class Child extends Parent { public static String ACONSTANT = "some value"; // etc } Is this possible in java? How? I'd rather not use instance variables/met...
Hi, I've tried searching A LOT for this with no luck (possibly because I'm not using the right technical terms). My issue is mainly to do with linking static libs, compiling and deploying. Before I get into details, my executables compile fine on my system; the main issue is how to deploy these as a working solution to others. I've wr...
I have a ListActivity with obviously a ListView on it. This ListView consists of different sections, each of them have a header. When I display the list of items to the user, first header is on top. If user scrolls, header is hidden and rest of items are displayed. I know how to make that simple header static, always on top, but what i ...
Can somone explain why I get this error on this code? Error 1 The type 'ConsoleApplication1.TestClass' already contains a definition for 'IsThisOK' class TestClass { public bool IsThisOK { get; set; } public static bool IsThisOK(string str) { return true; } public st...
Is there any reason to have a private constant, that is not static? Are there any situations that you would need a non-static private const? Would it make sense if constants where static by default? I use ActionScript3 and some Java, but I think this is a broader OOP question. ...
Readed all these topic http://stackoverflow.com/search?q=django.views.static.serve And it not helped :( OS: Windows XP Python: 2.7 Django: 1.2.3 Media in D:\bugtracker\static With files: docicons-note.gif style.css In settings.py i set: MEDIA_ROOT = 'D:/bugtracker/static/' MEDIA_URL = '/static/' In urls.py i set: urlpatterns = pa...
I have class Country which has collections of Cities. At client I use webmethod [WebMethod] public void AddCity(string countryCode,string name) { MyFacade.AddCity(countryCode,name); } at Facade I have method public void AddCity(string countryCode,string name) { Country.AddCity(countryCode,name); <-in this method is simple sql opera...
Hi all, I've been looking at the article on creating static constructors in c# here: http://csharpindepth.com/Articles/General/Singleton.aspx Now, one option he doesn't mention is using a simple static constructor. Is there any issue with doing something like the below? If it works, it seems simpler than his complicated solutions IMHO...
Is there a terminal command which I can use to see the version of a static library (*.a) on my Mac? ...
I have a static library with the following code: h file: class Foo { public: Foo() { a = 4; } int a; }; class Bar { public: static const Foo foo; }; cpp file: const Bar::foo = Foo(); My problem is that Bar::foo does not get initialized with a=4 until some time after main(). Before then a=0. I'm trying to ...
Hey, First of all this is not some normal action I would want to do, however this fringe case involving alot of legacy code I cannot touch, and unit tests that need to be written for newer stuff. Anyway I have a class and I can get access to all fields and methods through reflection, except private/protected static ones. So is there an...
#include <iostream> #include <string> class c1 { public: static std::string m1; static unsigned int m2; }; //std::string c1::m1 = std::string; unsigned int c1::m2 = 0; void main() { c1 a; //std::cout<<a.m1<<std::endl; std::cout<<a.m2<<std::endl; } In this program enabling the two remarked lines causes an error on the first. ...
My experience tells me that given an object: class Object { private: static int array[]; public: Object(int id); }; int Object::array[] = { 2937, 892 }; Object::Object(int id) { // do something } The initialization of array will happen before the invocation of any method on Object or the invocation of any method on an...
Hello, why or for what reason is it not possible to declare a class member variable in C++ as "static mutable"? Something like static mutable int t; //This won't compile For me, there is no reason to ban such declarations. E.g. for reasons like maintaining a global class-wide statistics, it may be convenient to have static variable t...
Static effect on memory how much ? ...
#include <stdio.h> const int str[1000] = {0}; int main(void) { printf("arr is %d\n", str[0]); return 0; } Has the following output: [-exercises/adam/stack2]:size a.out text data bss dec hex filename 5133 272 24 5429 1535 a.out Whereas: #include <stdio.h> static int str[1000] = {0}; in...
Hello. I'm reading the book about optimization teckniks. There is not much description or advices in example though. Here's the thing: int agag(int a) { static int dfdfdf = 0; static int prev_resilt = 0; if (dfdfdf == a) return prev_result; dfdfdf = a; a = SomeCalcs(); prev_result = a; return a; } The key thing is: i...
Hi, I've come across some code that has a large static function in a header file and i'm just curious when it is/is not ok to do this. For example, if many .c files include the header, why not just define the function non-static and link it in ? Any advice or rules of thumb on when/when not to put static function definitions in header ...
i need to statically embed web browser in c++ , webkit is good idea , is there any easy c++ wrapper around this kit , i know the Qt version but i can only dynamically link it and its no good for me. ...