Re: need argument for try catch blocks

From: (Stefan Ram)
30 May 2011 14:55:15 GMT
"Fred Zwarts" <> writes:

Should the destructor ignore it and let the program continue,
or is it better to let the exception leave the destructor, so that the
program will terminate,

  The common answer in the Java world is to log the inner exception,
  so that it does not get lost, but can be found in some log file.

  What else needs to be done is application specific, so there cannot
  be a general rule for it. (That's the reason why client code is made
  to handle exceptions of a library at all. Would it be obvious what
  to do independent of the application, the library would already
  have done it itself.)

  When a programmer writes code for himself, a program terminated by
  some exceptions is usable as the programmer then can trace down what
  happend. A customer may not be able to interpret and handle this.

  A program intended for a customer should give some
  explanation of what happend in a language the customer can
  understand. At least something like ?An unexpected error
  happened while trying to close the database link. Since this
  application needs an intact database, it had to be terminated.?

  For this to happen, code might catch the exception, log the
  exception, emit a user-readable message, and then rethrow
  the exception, which might have the consequence of
  terminating the application.

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