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  1. Qt
  2. QTBUG-31926

Number precision in QJsonDocument.toJson() is still not enough for double

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3: Somewhat important
    • Resolution: Done
    • Affects Version/s: 5.1.0 RC1
    • Fix Version/s: 5.1.1
    • Component/s: Core: Other
    • Labels:
      None
    • Commits:
      94c8efff8a46c245cd4cae1e2630c608374c442d

      Description

      https://en.wikipedia.org/wiki/IEEE_floating_point

      It should be "17 decimal digits for binary64", but now it's only 13.

        Attachments

        1. bug31926test.pro
          0.3 kB
        2. main.cpp
          1 kB

          Issue Links

          is related to

          Suggestion - Public suggestions QTBUG-28467 Number precision in QJsonDocument.toJson() is too low

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-33913 QJsonValue toDouble() conversion causes loss of data

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-42419 QJsonDocument::toJson() generates extra large text.

          • P4: Low - Would be nice to fix, but it's not very important.
          • Closed
          For Gerrit Dashboard: QTBUG-31926
          # Subject Branch Project Status CR V
          60303,3 QtCore: fix the number precision in QJsonDocument.toJson() again stable qt/qtbase Status: MERGED +2 0

            Activity

              People

              Assignee:
              liaqi Liang Qi
              Reporter:
              liaqi Liang Qi
              Votes:
              1 Vote for this issue
              Watchers:
              6 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

                  Gerrit Reviews

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