Using Exceptions

• Not much wisdom here.
• new/alloc can cause an exception.
  • He states that this is rare on 64 bit systems.
  • But it is a problem for mobile, embedded, ....
  • It might not be reasonable to catch all of these.
  • But it might.
  • Really hard to clean up.
  • If you catch one of these save your state?
• Don't use exceptions as a tool for sloppy programming.
  • Don't use exceptions to control logic.
  • You see this on line alot.
  • This is a bad practice, at least in c++
• Don't use exceptions to clean up bugs in your code.
• Some guidelines
• Use exceptions when the code that finds the error is separate from the code that caused the error
  • The vector example is good.
• Don't catch what you can't handle
• Catch an exception as close to the point of error as possible.
• After we get further in OOP, you might want to revisit this chapter.