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  1. Qt
  2. QTBUG-28467

Number precision in QJsonDocument.toJson() is too low

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Details

    • Suggestion
    • Resolution: Done
    • P2: Important
    • 5.1.0 RC1
    • 5.0.0 Beta 2, 5.0.0 RC 1
    • Core: Other
    • None
    • 57acf1b46ca4bb670f4bf1fe3807dfa91edb6248

    Description

      Default number precision in serialization QJsonDocument to text is only 6.
      It mean's every number >= 10^6 is writed in exponential form with precision lost.
      I can't see any reason for such limit. It can mess up various IDs for example.

      Problem is in QJsonPrivate::Writer class.
      It uses QByteArray::number function with default parameters and default precision is only 6...

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        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-31926 Number precision in QJsonDocument.toJson() is still not enough for double

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          For Gerrit Dashboard: QTBUG-28467
          # Subject Branch Project Status CR V
          56072,2 QtCore: fix the number precision in QJsonDocument.toJson() stable qt/qtbase Status: MERGED +2 0

          Activity

            People

              liaqi Liang Qi
              dorny Michal Dorner
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              3 Vote for this issue
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              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

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