Hacker’s Delight, Second Edition

Answers To Exercises

Chapter 1: Introduction

1. The following is pretty accurate:

If e₂ is not present in the for loop, the constant 1 is used for it in the above expansion (which would then be a nonterminating loop, unless something in statement terminates it).

Expressing a for loop in terms of a do loop is somewhat awkward, because the body of a do loop is always executed at least once, whereas the body of a for loop may not be executed at all, depending on e₁ and e₂. Nevertheless, the for loop can be expressed as follows.

Again, if e₂ is not ...