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Why does QT use so few exceptions?

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    danilocesar
    wrote on last edited by
    #5

    [quote author="Tobias Hunger" date="1286374926"]
    But this is just my opinion: I am not aware of any plans for Qt 5 or later.[/quote]

    NOOOOOOO!!! =P

    <a href="http://www.danilocesar.com">Danilo Cesar Lemes de Paula</a>
    Software Engineer

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      tobias.hunger
      wrote on last edited by
      #6

      danilocesar: What was that NOOOOO about?

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        danilocesar
        wrote on last edited by
        #7

        It's a good place to change major architecture decisions without harm current devs.
        From a simplistic point of view (without thinking about continuous improvement of current apps, kde, nokia, market, etc), who doesn't want Qt 5? :)

        <a href="http://www.danilocesar.com">Danilo Cesar Lemes de Paula</a>
        Software Engineer

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          MTK358
          wrote on last edited by
          #8

          [quote author="Tobias Hunger" date="1286394948"]danilocesar: What was that NOOOOO about?[/quote]

          Just read this sentence and forget about the context of this thread:

          "I am not aware of any plans for Qt 5 or later."

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            tobias.hunger
            wrote on last edited by
            #9

            MTK358: I do not know of any plans, that does not mean that nobody else is doing planning;-)

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              s.frings
              wrote on last edited by
              #10

              To come back to the original question: Is there a technical reason, not to use exception to handle errors? I understood, that the reason was historically, so it's basically a good idea to use exceptions in my own programs.

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                Franzk
                wrote on last edited by
                #11

                I don't think there would be a lot of places where Qt would really benefit from exceptions, but hey, I might be missing something :).

                "Horse sense is the thing a horse has which keeps it from betting on people." -- W.C. Fields

                http://www.catb.org/~esr/faqs/smart-questions.html

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                  tobias.hunger
                  wrote on last edited by
                  #12

                  s.frings: Yes, there is no reason not to use exceptions in your own programs. I do not know whether it is a good idea for consistency reasons: I prefer not having to switch between exception/non-exception code, but that is just a matter of taste.

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                    ivan.todorovich
                    wrote on last edited by
                    #13

                    What about QSqlError ?
                    I find it annoying calling lastError() every time I execute a SQL query. I can't think of a better place to use exceptions instead of error codes. Not to mention that exceptions are thread-safe.

                    o_o Sorry for my rusted english.

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                      szh1
                      wrote on last edited by
                      #14

                      What are the advantages of Exceptions?

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                        goetz
                        wrote on last edited by
                        #15

                        Some of them are explained "here":http://www.parashift.com/c++-faq-lite/exceptions.html

                        And keep in mind:
                        there is NO one size fits all! Exceptions might work wel for one case, but not for the other.

                        http://www.catb.org/~esr/faqs/smart-questions.html

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                          szh1
                          wrote on last edited by
                          #16

                          I hope Qt starts to use exceptions soon!

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                            goetz
                            wrote on last edited by
                            #17

                            You'll have to wait at least until Qt 5 comes around.

                            All releases of the Qt 4 series will stay source and binary compatible. Switching to using exceptions is a far too big change. Maybe it will come sometimes, but don't expect anything. There aren't even rumors about a timeline of Qt 5, even less abut exceptions...

                            http://www.catb.org/~esr/faqs/smart-questions.html

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