What I want to do is have a pointer in a super class that once initialised has the same address for all instances of it's subclasses. I thought that I could use the static keyword but I keep getting unresloved external symbol errors during the linking phase.
Do demonstrate what I mean I wrote a simple example in java:
public class Gremlin {
protected static int numberOfGremlins = 0;
public Gremlin() {
System.out.println("There is " + (++numberOfGremlins) + " gremlin(s) !\n");
}
}
public class EvolvedGremlin extends Gremlin {
protected static int numberOfEvolvedGremlins = 0;
public EvolvedGremlin() {
super();
System.out.println("There is " + (++numberOfEvolvedGremlins) + " evolved gremlin(s) !");
System.out.println("There is " + numberOfGremlins + " gremlin(s) altogeather !\n");
}
public void countGremlins() {
System.out.println("I counted " + numberOfGremlins + " gremlin(s) !");
}
}
EvolvedGremlin inherits the nuberOfGremlins from Gremlin, but the value is the same for every instance of EvolvedGremlin. So if I created two EvolvedGremlin objects, and two Gremlin objects, and then got an EvolvedGremlin to count the number of Gremlins the output would be:
There is 1 gremlin(s) !
There is 1 evolved gremlin(s) !
There is 1 gremlin(s) altogeather !
There is 2 gremlin(s) !
There is 3 gremlin(s) !
There is 4 gremlin(s) !
There is 2 evolved gremlin(s) !
There is 4 gremlin(s) altogeather !
I counted 4 gremlin(s) !
However I am at a loss as to how this could be done in C++ ?
