How to initialize static const pointer in a class ?

Question

class School
{
    static const int *classcapacity; 
};

This expression is from my exam and it need to get initialized how can i do that ?

Answer 1

Probably this way:

class School{
  static const int *classcapacity   ;
};
const int *School::classcapacity = 0;

Answer 2

If you want to initialize it with YOUR_INITIALIZER:

class School{ static const int *classcapacity ; } ;
const int* School::classcapacity = YOUR_INITIALIZER;

Answer 3

You can initialize it in your source file, outside of the body of the class, just as you would any other static member variable, i.e.:

const int* School::classCapacity(new int(42));