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[Page 810]

Chapter 16. Exception Handling

I never forget a face, but in your case I'll make an exception.

Groucho Marx

It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.

Franklin Delano Roosevelt

O! throw away the worser part of it, And live the purer with the other half.

William Shakespeare

If they're running and they don't look where they're going I have to come out from somewhere and catch them.

Jerome David Salinger

O infinite virtue! com'st thou smiling from the world's great snare uncaught?

William Shakespeare

OBJECTIVES

In this chapter you will learn:

  • What exceptions are and when to use them.

  • To use TRy, catch and throw to detect, handle and indicate exceptions, respectively.

  • To process uncaught and unexpected exceptions.

  • To declare new exception classes.

  • How stack unwinding enables exceptions not caught in one scope to be caught in another scope.

  • To handle new failures.

  • To use auto_ptr to prevent memory leaks.

  • To understand the standard exception hierarchy.


[Page 811]

Outline

16.1 Introduction

16.2 Exception-Handling Overview

16.3 Example: Handling an Attempt to Divide by Zero

16.4 When to Use Exception Handling

16.5 Rethrowing an Exception

16.6 Exception Specifications

16.7 Processing Unexpected Exceptions

16.8 Stack Unwinding

16.9 Constructors, Destructors and Exception Handling

16.10 Exceptions and Inheritance

16.11 Processing new Failures

16.12 Class auto_ptr and Dynamic Memory Allocation

16.13 Standard Library Exception Hierarchy

16.14 Other Error-Handling Techniques

16.15 Wrap-Up

Summary

Terminology

Self-Review Exercises

Answers to Self-Review Exercises

Exercises


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