Thread: Advice on Class with Stuct

Hi,
I'm converting this golf program into a prog using a class. I want to use the old structure in the class but am not sure how to use the structure or functions of the class. Here is what I have.

Code:

//golff.h	for prblm 2 pg 417 c++ primer plus

class Score  // golf score class
{
    private:
    const int Len=40;
    struct golf
    {
	    char fullname[Len];
	    int handicap;
    };
    public:
        void score(golf & g, const char *name, int hc);
        int setgolf(golf & g);
        void setgolf(golf & g, const char *name, int hc);
        void handicap(golf & g, int hc);
        void showgolf(const golf & g);
};

Second file:

Code:

#include <iostream>
#include "golfh.cpp"
using namespace std;

void Score::Score(golf & g, const char *name, int hc)// constructor
{
	strcpy(g.fullname,name);
	g.handicap=hc;
}

int Score::setgolf(golf & g)
{
	cout << "Enter golfers name:";
	cin.get(g.fullname,Len);
	if (strlen(g.fullname)==0)
	{
		return 0;
	}
	else
	{
		cout << "Enter player's handicap:";
		cin >> g.handicap;
		cin.get();
		return 1;
	}

}

void Score::handicap(golf & g, int hc)
{
	g.handicap=hc;
}
void Score::showgolf(const golf & g)
{
	cout << "Player's name:"<<g.fullname<<endl;
	cout << "Handicap:"<<g.handicap<<endl;
	cout << endl;
}

i'd advise working from this point (although i may not be clear on what you're trying to do)

class Score // golf score class
{
private:
const int Len=40;
char fullname[Len];
int handicap;
public:
void score(golf & g, const char *name, int hc);
int setgolf(golf & g);
void setgolf(golf & g, const char *name, int hc);
void handicap(golf & g, int hc);
void showgolf(const golf & g);
};

Yes that would be much easier it seems. I just thought I would leave the original structure intact in order to learn how to use the structure in the class. I'm book taught and the book hasn't attempted to use a struct in a class yet so I am forging new ground. I can see that the struct has class scope so passing s of a struct to the member function would mean making another structure outside the class which of course would be a waste. Since the struct is private to the class I could not create an object of that struct type in main, but could I create an object of that class and pass the struct within to the member function somehow? I don't know this is a bit confusing. I guess what I am asking is how do you use a struct in a class definition and how do you access the members of the struct that is part of the class. Could I create an object say folf of type golf in the class definition(say the constructor) then remove the passing by refrence of the struct from the member functions. In main then I wold create an array holding golf objects and use the member functions to alter the properties of the individual objects.

you could define the struct outside the class and have a member of the class be of your struct type.