Thread: One member, many instances

Hi there!
Is there any way that I can use just one variable(the same) for all instances of the class that has that variable? I thought about static, but didn´t work because the cpp file couldn´t see that variable(as predicted). I don´t post my code because it is huge(it is a game). So, if anyone can help but need more details just let me know!
Thanks all!

7stud: Yes, but not necessarily.
Here is what i've commonly seen done:

mine.cpp

Code:

#include "mine.h"
cout << "Hello" << abc.endl;

mine.cpp

Code:

#include "mine.h"
char *abc::endl = "\r\n";

mine.h

Code:

class abc {
  public:
    static char *endl;
}

The only other way i know of is using externs. but even then, i think it complains about multiple storace classes or something...

Add a member functions to get and set the static int, hide it away.

A.h

Code:

class A
{
public:
    int get_a();
    void set_a(int n);
protected:
    static int a;
};

A.cpp

Code:

#include "A.h"
int A::a = 0;

int A::get_a()
{
    return a;
}

void A::set_a(int n)
{
    a = n;
}

AProg.cpp

Code:

#include <iostream>
#include "A.h"
using namespace std;

int main(void)
{
    A a,b;

    a.set_a(5);
    cout << b.get_a() << endl;
    return 0;
}

Thanks for you all!
I didn´t test all the things yet, but I trust that must be right!
Again thanks! This is very useful to me!