Navigating C++ and Object-Oriented Design

13.9. Key Point Summary

• The exception handling mechanism helps with the portability and design of C++ class libraries.

• The exception mechanism consists of try blocks, catch handlers, throw expressions, and exception specifications.

• A try block is an area of your program that detects exceptions.

• Catch handlers have signatures denoting an exception type and immediately follow try blocks or another catch handler with a different signature.

• Throw expressions raise exceptions inside try blocks for catch handlers to capture.

• Rethrows are useful when catch handlers need to perform preliminary processing before they pass the current exception up the call chain to a different catch handler.

• The compiler searches each catch handler for a signature that matches ...