Exceptional C++ Style 40 New Engineering Puzzles, Programming Problems, and Solutions

Chapter 11. Try and Catch Me

Difficulty: 3

Is exception safety all about writing try and catch in the right places? If not, then what? And what kinds of things should you consider when developing an exception safety policy for your software?

JG Question

1. What is a try-block?

Guru Question

1. “Writing exception-safe code is fundamentally about writing try and catch in the correct places.” Discuss.

2. When should try and catch be used? When should they not be used? Express the answer as a good coding standard guideline.

Solution

Playing catch

1. What is a try-block?

A try-block is a block of code (compound statement) whose execution will be attempted, followed by a series of one or more handler blocks that can be entered to catch an exception of the appropriate type ...