We could have written the loop to manage the interaction with the user as a do while (§ 5....

We could have written the loop to manage the interaction with the user as a do while (§ 5.4.4, p. 189) loop. Rewrite the loop to use a do while. Explain which version you prefer and why.

§ 5.4.4 (p. 189)

Exercise 5.18

Explain each of the following loops. Correct any problems you detect.

(a) do
int v1, v2;
cout << "Please enter two numbers to sum:" ;
if (cin >> v1 >> v2)
cout << "Sum is: " << v1 + v2 << endl;
while (cin);
(b) do {
// ...
} while (int ival = get_response());
(c) do {
int ival = get_response();
} while (ival);

Exercise 5.19

Write a program that uses a do while loop to repetitively request two strings from the user and report which string is less than the other.