I read that doing: public final void foo() {} is equals to: private static void foo() {} both meaning that the method is not overridable! But I don't see the equivalence if a method is private it's automatically not accessible... ...
// in ClassA.h static NSString *globalStr = @"HelloWorld"; @interface ClassA ... @end // in ClassB.h #include "ClassA.h" // in ClassB.m ... NSLog(@"The global string: %@", globalStr); ... In C++, "static" should mean the variable or function has a internal linkage. But it is used to share the variable in this case, e...
public class B { static int i =1; public static int multiply(int a,int b) { return i; } public int multiply1(int a,int b) { return i; } public static void main(String args[]) { B b = new A(); System.out.println(b.multiply(5,2)); System.out.println(b.multipl...
Possible Duplicate: What is the lifetime of a static variable in a C++ function? Say we have a code like this: Some class { Some() { // the ctor code } }; Some& globalFunction() { static Some gSome; return gSome; } When exactly 'the ctor code' is executed? As for normal static variables before main() or at the momen...
I am using static Arrays and HashMaps to store some values in my AppWidgetProvider class. But they are becoming null when the process dies, so the widget does not work anymore. Are there any alternatives to using static members to store data for an AppWidgetProvider in Android? ...
If I would like to have several static methods in my models so I can say User::get_registered_users() and have it do something like public static function get_registered_users() { $sql = "SELECT * FROM `users` WHERE `is_registered` = 0"; $this->db->query($sql); // etc... } Is it possible to access the $this->db object or c...
This piece of code is supposed to calculate an approximation to e (i.e. the mathematical constant ~ 2.71828183) at compile-time, using the following approach; e1 = 2 / 1 e2 = (2 * 2 + 1) / (2 * 1) = 5 / 2 = 2.5 e3 = (3 * 5 + 1) / (3 * 2) = 16 / 6 ~ 2.67 e4 = (4 * 16 + 1) / (4 * 6) = 65 / 24 ~ 2.708 ... e(i) = (e(i-1).numer * i + 1) /...
Hello, I have a templated class with a static value, like this: template <class TYPE> class A{ static TYPE value; }; in the code of a dll I assign the static value: code of DLL_1 A<float>::value = 2.0; I wish the value to be shared by all the dlls I'm using, i.e. I want that: code of DLL_2 printf("value on DLL_2 %f",A<flo...
Are there any reasons I should not create a final class with static methods to avoid that some internal functions are called? final class ModuleGlobalFunctions { static public function generateWord { $result = ''; while (strlen($result) < 12) { $result = self::generateSyllable(); } return $result } static ...
Use the static modifier to declare a static member, which belongs to the type itself rather than to a specific object. ??? My encounter with this static keyword occurred when I defined a variable public int abc. When the value of this variable changed withing the brackets of while, or within the brackets of if, or within the ...
Can you help? The following code: class MT { public: static int ms_number; }; int MT::ms_number; yields: Error 8 error LNK2005: "public: static int MT::ms_number" (?ms_number@MT@@2HA) already defined in ProjName.obj Why? ...
Recently in a project I am working on, I needed to store callbacks in a static member array, like so: class Example { private static $_callbacks = array( 'foo'=>array('Example','do_foo'), 'bar'=>array('Example','do_bar') ); private static function do_foo() { } private static function do_bar() { } } To c...
Hello all, I tried to search the site for this question but didn't find this exactly, although this subject is being discussed a lot... I have this declaration in a cpp file, not within any function: static const char* gText = "xxxxxxxxxxx"; Although it has a fixed size, I get a warning from a static analysis tool (Klocwork) when I'm...
Hi, im programming embedded devices and I was wondering what to use for a macrofunction, for example an init of some registers. should i make this static/const or define it as a macro? for example, this: #define FPGA_INIT()\ { \ /* Set function and direction of start_code pin*/\ P0SEL &= ~0x04; \ P0DIR |= 0x04; \ FPGA_START_CO...
In my code I'm using static field for storing a particular value. public static int webServiceId; I have remove that and use any other solution. But the value should retain after postback. We can't use Session or ViewState here. Coz I'm working with services (in Service layer). Example: I get webservice id in the below method of xy...
Do PHP5.3 have any known bug issue that makes non static variables in scope behave Static ? I donno why in a if{}Scope I've { echo $_not_static; $_not_static = 5; } First Time it fires E_NOTICE as it should But second time it prints 5. I was Struggling with this for 3+ hours but not getting any hint of a fault from my side. ...
I am not able to declare a static integer in h class in iphone. static int i; this gives an error "expected specifier-qualifier list before static". please help me out.How to resolve this.How can i declare a static variable globally in iphone.Thanks. ...
Imagine the following template class (setter and getter for the member _t omitted): template<class T> class chain { public: static chain<T> NONE; chain() : _next(&NONE) {} ~chain() {} chain<T>& getNext() const { return *_next; } void setNext(chain<T>* next) { if(next && next != this) _next = next; ...
How is the correct way to call a child class method from a parent class if both are static? When I use static classes it returns the error "Call to undefined method A::multi()", however when I use non-static methods there is no problem, for example: //-------------- STATIC ------------------ class A { public static function calc($a...
I have this definition of the function in my class. The .hpp file: class SomeClass { public: static string DoStuff(string s); }; The .cpp file: #include "header.hpp" string SomeClass::DoStuff(string s) { // do something } Compiler says: **error C2039: 'DoStuff' : is not a member of 'SomeClass'** Can somebody help? EDIT: act...