Passing classes question

I have the following, rather stupid question

I made a parent class called "Space" with a name (eg. sun) and a weight (float).
Then i made a child class called "Planet" with a datamember "Space turnaround" (example, the earth-planet turns around the sun-space)

I made a constructor :

Code:

Planet(char*="",float=0.0,Space);

a getTurnaround function :

Code:

Space & getTurnaround (void) const;

now my problem is, i don't know how I should write the Planet-constructor. I was thinking something like :

Code:

Planet::Planet(d):Space(n,f)
{
      name= new char[strlen (n) +1];
      strcpy(name,n);
      weight= f;
      turnaround= d; //would requere a friend operator= if im not mistaking
}

and for the getTurnaround :

Code:

Space Planet::getTurnaround(void) const
{
       return turnaround;
}

But I expect a lot of mistakes in this, since this is my first experience with passing classes.

Hope someone can help.

I've heard of char and LPSTR. What is name*=""? Besides, default-parametres must be assigned from right to left, I think.

was a typo

I was translating it from Dutch and apparantly I made a mistake there

hope this makes more sence

You can try something like this. I don't use initialization lists when using constructors that contain strings because I always get confused as to how to do it. I write it out like this:

Code:

struct Space
{
   char name[80];
};

struct Planet
{
    Planet(Space, char *, float);
    //you need a default and copy constructor if you declare a 
    //non default constructor
    float weight;
    char name[80];
    Space space
};

//default null string for _name and default 0.0 for wt, no default 
//for _space
Planet::Planet(Space _space, char _name[80] = {'\0'}, float wt = 0.0)
{
   stcpy(name, _name);
   space = _space;
   weight = wt;
}