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QDate - wrong year [Solved]

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  • B Offline
    B Offline
    blackbelt
    wrote on last edited by
    #1

    I have the following situation:

    @ QDate fixDate = QDate::fromString(QString("270912"), "ddMMyy");@

    the year returned is 1912. I do not understand why and how get the correct year.

    Thanks in advanc

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    • A Offline
      A Offline
      AcerExtensa
      wrote on last edited by
      #2

      How should the Qt know which epoch this year is?

      God is Real unless explicitly declared as Integer.

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      • B Offline
        B Offline
        blackbelt
        wrote on last edited by
        #3

        [quote author="AcerExtensa" date="1348753653"]How should the Qt know which epoch this year is? [/quote]

        good point. Is there anyway to fix?

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        • A Offline
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          AcerExtensa
          wrote on last edited by
          #4

          You can add 100 years for example... if you sure what only years from 21-31 century will be used...

          @
          QDate fixDate = QDate::fromString(QString("270912"), "ddMMyy").addYears (100);
          @

          God is Real unless explicitly declared as Integer.

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          • B Offline
            B Offline
            blackbelt
            wrote on last edited by
            #5

            I see. I read that particular string from a nmea sentence... do you think adding 100 years is the good way to go?

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            • A Offline
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              AcerExtensa
              wrote on last edited by
              #6

              I don't really know... but if there is no other option to get full sized year...
              Or you can do like it is an real-time date... and use epoch from current date...

              God is Real unless explicitly declared as Integer.

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              • B Offline
                B Offline
                blackbelt
                wrote on last edited by
                #7

                ok- Thank you. I will add 100 years. In the next century I think I will be retired. So why bother?

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                • A Offline
                  A Offline
                  AcerExtensa
                  wrote on last edited by
                  #8

                  Wait a second does gps nmea returns a year? I was thinking it returns only the utc time and not the date?

                  God is Real unless explicitly declared as Integer.

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                  • B Offline
                    B Offline
                    blackbelt
                    wrote on last edited by
                    #9

                    @$GPRMC,143322.34,A,0000.023,N,00000.000,W,21.60,0.00,270912,0.0,E,A*1E@

                    270912 is the utc date
                    143322.34 is te utc time (hhmmss.zz)

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                    • A Offline
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                      AcerExtensa
                      wrote on last edited by
                      #10

                      I have better idea!
                      in year 1912 there was no GPS at all, and of cause no nmea format...

                      bq. 1973 Decision to develop a satellite navigation system based on the systems TRANSIT, TIMATION und 621B of the U.S. Air Force and the U.S. Navy.

                      You will be on the safe side to convert all dates after 1970 into 19__ format and all dates below into 20__ format...

                      God is Real unless explicitly declared as Integer.

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                      • B Offline
                        B Offline
                        blackbelt
                        wrote on last edited by
                        #11

                        good point. ty

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                        • A Offline
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                          andre
                          wrote on last edited by
                          #12

                          Actually, I think it is a save bet to use this century always. How big is the chance that you'll be processing old nmea logs from before the year 2000?

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