1. The Run-Time Stack and Reference Parameters

2. float average (const float val1, const float val2) { ? 4 6 ? 5 ?
num1
num2
the_average
main() ? 4 6 ? 5 4 ?
float average (const float val1, const float val2) {
float ave = (val1+val2)/2;
return ave;
} int main() {     float num1=4, num2=6, the_average=4;     the_average = average (num1, num2);     return 0; }

3. void swapVal (int val1, int val2) {     int temp = val1;     val1 = val2;     val2 = temp;     return; }
void swapRef (int & val1, int & val2) {     int temp = val1;     val1 = val2;     val2 = temp;     return; }
int main() {     int a = 7, b = 2;     cout<<a<<" "<<b<<endl;     swapVal(a, b);     cout<<a<<" "<<b<<endl;
swapRef(a, b);
cout<<a<<" "<<b<<endl;
...

4. void get_point(float & x, float & y) { cout << “enter x value”; b
main() a ? 5 8 ?
void get_point(float & x, float & y) {
cout << “enter x value”;
cin >> x;
cout << “enter y value”;
cin >> y;
return;
} int main() {     float a, b;     get_point (a, b);

5. End of Session