Questions tagged [static-functions]
124 questions
0
votes
1 answer
visual studio cannot resolve static functions
Here is the code and the output.
win_main.cpp
#include
#include
#include "d3d9_object.h"
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
WNDCLASSEX…
sasha199568
- 1,143
- 1
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- 33
0
votes
1 answer
In function overridding why we not declare it static
I have a child class where I define a static function:
class functionover
{
function override($num1, $num2)
{
$total = $num1+$num2;
}
}
class childfunctionover extends functionover
{
static function override($num1, $num2)
…
Angle
- 5
- 4
0
votes
1 answer
How to calculate user input using non-static functions
My testing environment: Visual Studio 2010 Ultimate.
the error I received:
main.cpp(39): error C2352: 'Account::DepositAmt' : illegal call of non-static member function
I've tried changing it to static functions but it only caused more…
SorryEh
- 900
- 2
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- 47
0
votes
1 answer
Can I dynamically create a class name and then use it to call static function of that class in PHP?
I have two classes with the same static methods but each class has different implementation of the methods. In my code I know which static method I need to call, but the class type is determined dynamically. Something like this:
class someClass_A {
…
user2395238
- 850
- 1
- 9
- 20
0
votes
1 answer
What does prepending '&' to a function name mean in PHP?
I'm using a CMS package written in PHP. In one of it's core files I saw following line that is for defining a function in a class body.
public static function &getLib($sClass, $aParams = array()) {
// Code
}
I didn't understand why the function…
user4407686
0
votes
1 answer
How static member function can call the static private data member ? what kind of the internal transformation is needed?
Just imagine we have the following class:
class A
{
private:
static int m_a;
public:
A() {}
static int get_sum(int b);
};
int A::m_a = 5;
int A::get_sum(int b)
{
return m_a + b;
}
int main() {
// your code goes here
A a;
int c =…
user1886376
0
votes
4 answers
Call static function on deleted object
I'd start learning C++ and I don't understand this is memory leak or some kind of voodoo magic?!
I have some "singleton" class (just for a demo):
#include
using namespace std;
class S {
private: S() {
cout << "S::S" << endl;
…
lxmarduk
- 23
- 2
0
votes
1 answer
Inline Static function and static variables
What is the use of making static function inline ? Rather than using the same function in two files ; is their any other use of static function?
inline static int func(int a)
{
static int b;
printf("Hello World !\n");
return…
Rohith Gowda
- 137
- 2
- 2
- 12
0
votes
1 answer
Static function within class, how will memory be handled?
I would like to use the following static function. This function will in turn compute the input, and std::cout a result. After the static function is called and taken off of the stack, will all of this memory associated with this class be freed? Is…
Algonomaly
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- 8
0
votes
2 answers
php static function run twice
I am new in studing php static function I want to build a function, curl some contents from some url, and then process php regex to get what I need. Here is my code, but the curl part runs twice. How to modify it so that short the run durante?
$url…
fish man
- 2,666
- 21
- 54
- 94
0
votes
2 answers
C++ static functions and variables
I have written a class as shown below:
#include
using namespace std;
class A
{
static int cnt;
static void inc()
{
cnt++;
}
int a;
public:
A(){ inc(); }
};
int main()
{
A d;
return 0;
}
I want to call the function inc through the…
nitish712
- 19,504
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- 34
0
votes
4 answers
Static member function with set parameters needs access to non-static data members
I have a static function that needs to access data members of a class. The function can be a member, non member or friend function of the class, but it must be static and it cannot take any arguments. So I cannot pass the data members to it as a…
cheezsteak
- 2,731
- 4
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- 41
0
votes
2 answers
Android Static functions
I'm wondering how I can access the return statement with a static function. I have a static function with Async and I want to then get the return statement in another class - I know it sounds complex but, I'm sure it's an easy solution.…
TheBlueCat
- 1,147
- 5
- 19
- 38
-1
votes
1 answer
Trying to create object using constructor inside static function in C++
I was trying to create an object inside static function using a constructor.
Here is the code
class A {
public:
A() { this->a = 50; std::cout << "constructor called... " << this << std::endl; setAddr(this); }
~A() { this->a = 10; std::cout…
Alok
- 127
- 1
- 7
-1
votes
1 answer
PHP: Access static function / method with object property
While I understand that static methods can be invoked through a variety of approaches, such as:
A::staticFunction();
OR
$class = 'A';
$class::staticFunction();
OR
$a = new A(); // Assume class has been defined…
robnov
- 1