• Go through example to show them how familyhistory should work

John 6 10 4
Zola 2 6 9
Frank 3 11 13
Fred 10 15 17
Sue 9 19 16
Mary 7 3 2
Beth 4 20 22

Start with Mary

• passing parameters by value, reference, address

void byvalue(int val) {
	val = 10;
}
void byaddr(int *val) {
	*val = 10;
}
void byreference(int &val) {
	val = 10;
}
 
int main(){

	int myval = 5;
	char *foo = new char [10];
	cout << "myval is "<<myval<<endl;
	byvalue(myval);
	cout << "after value myval is "<<myval<<endl;
	myval = 5;
	byaddr(&myval);
	cout << "myval is "<<myval<<endl;
	myval = 5;
	byreference(myval);
	cout << "myval is "<<myval<<endl;
}

• show labyrinth code and talk about call by reference, then have them act it out on a 5×5 grid on the stage

XXXXX
X X X
X   X
X X G
XXXXX

• Do example where they read in a directory structure and recursively descend it:

ID Name ID ID ID
12 Documents 14 19 23
14 Pictures 34 33
34 pict1.jpg
33 pict2.jpg
19 school.doc
23 work.doc

• Exceptions
• More Examples