Use the comma operator (§ 4.10, p. 157) to rewrite the while loop from § 1.4.1 (p. 11) so...

Use the comma operator (§ 4.10, p. 157) to rewrite the while loop from § 1.4.1 (p. 11) so that it no longer requires a block. Explain whether this rewrite improves or diminishes the readability of this code.

§ 4.10, p. 157

Exercise 4.31

The program in this section used the prefix increment and decrement operators. Explain why we used prefix and not postfix. What changes would have to be made to use the postfix versions? Rewrite the program using postfix operators.

Exercise 4.32

Explain the following loop.

constexpr int size = 5;int ia[size] = (1,2,3,4,5);for (int *ptr = ia, ix = 0;     ix != size && ptr != ia+size;     ++ix, ++ptr)  { /* ... */ }

§ 1.4.1 (p. 11)

Exercise 1.9

Write a program that uses a while to sum the numbers from 50 to 100.

Exercise 1.10

In addition to the ++ operator that adds 1 to its operand, there is a decrement operator (--) that subtracts 1. Use the decrement operator to write a while that prints the numbers from ten down to zero.