Re: Exceptions - should I use them?

From:
ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups:
comp.lang.c++
Date:
5 Dec 2014 13:42:32 GMT
Message-ID:
<exceptions-20141205144221@ram.dialup.fu-berlin.de>
mad-crapper <madcrapper@toilet.com> writes:

At the risk of starting a flame war, I think the "cost of exceptions"
argument is promulgated by old-farts who don't know or understand
exceptions.


  Some questions about C++ exceptions, so that readers can
  find out whether they ?know and understand? exceptions:

      how many execution paths could there be in the following
      code?

          String EvaluateSalaryAndReturnName( Employee e )
          {
            if( e.Title() == "CEO" || e.Salary() > 100000 )
            {
              cout << e.First() << " " << e.Last()
                   << " is overpaid" << endl;
            }
            return e.First() + " " + e.Last();
          }

      (IIRC, Question by Herb Sutter)

      What is

        the no-throw guarantee?

        strong exception safety?

        basic exception safety?

      How are these accomplished in code?

      Which kinds of exception specifications for function
      definitions are recommended in C++ and which kinds are
      deprecated?

      How do smart pointers help to make C++ code
      exception-safe? Which kind of smart pointer is
      recommended for which scenario and how is it to be used?

      How many persons who have learned ?C++ programming? as a
      part of some kind of education (school, college, ...)
      are able to correctly answer the above questions and
      thus use exceptions in C++ in the safe and recommandable way?

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