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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

    • Bug
    • Resolution: Done
    • P3: Somewhat important
    • 5.1.1
    • 5.1.0 RC1
    • Core: Other
    • None
    • 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

          relates 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

          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

              liaqi Liang Qi
              liaqi Liang Qi
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              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

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