Chapter 13

1. C++ exceptions do not need to check the return result of every function call.
2. POSIX-style functions must reserve a part of a function's output to convey an error. For example, if a function must return a file handle, 0 is returned in the event of an error, which means that a file handle cannot have the value 0.
3. Set jump does not unwind the stack, which means destructors are skipped.
4. catch(...)
5. Instructions on how to unwind a stack must be stored for every function. This is the tradeoff for increased performance.
6. They are slow.