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Why does QT use so few exceptions?

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  • M Offline
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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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    • T Offline
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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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        • F Offline
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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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            • I Offline
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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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                • G Offline
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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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                  • S Offline
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                    szh1
                    wrote on last edited by
                    #16

                    I hope Qt starts to use exceptions soon!

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                    • G Offline
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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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