File I/O: writing linked list

[Z feng]

OK, This is the reading file function:

course* restoreList(course* head)//given by professor, should be right.
{
	fstream fin;
	fin.open("courses.dat", ios::binary|ios::in);
	if(!fin)
	{
		cout<<"You don't have any course history yet. "<<endl;
		return head;
	}
	// read the number of objects from the disk file
	int nRecs;
	fin.read((char*)&nRecs, sizeof(int));
	cout<<"Reading Record: "<<nRecs<<endl;
	// read the objects from the disk file
	course* newHead = head; // the new list 
	for (int i = 0; i< nRecs; i++)
	{
		course* c = new course;
		fin.read((char*)c, sizeof(course));
		newHead = push_back(c, newHead);
	}
	fin.close();
	return newHead;
}

This is my writing file function:

void saveList(course* head)
{
	fstream fout;
	fout.open("courses.dat", ios::binary|ios::out);
	int nRecs;
	course* p1;
	for (nRecs=0, p1=head; p1; p1 = p1->next, nRecs++);
	fout.write((char*)&nRecs, sizeof(int));
	course* p;
	for (p=head; p; p = p->next)
		fout.write((char*)p, sizeof(course));
	cout<<"RECORD: "<<nRecs<<endl;

	fout.close();
	return;
}

This is the class course:

class course
{
public:
	char name[12];
	char term[8];
	int unit;
	char grade;
	course*next;
};

Problem is: my reading function can't read my output file. Can anyone see the problem is?