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  1. Qt
  2. QTBUG-87466

QStringConverter::encodingForData is modifying the data that was passed in

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: P0: Blocker P0: Blocker
    • None
    • 6.0.0 Alpha
    • Core: QString and Unicode
    • None

      In the initial Qt 6.0 Alpha release, the QStringConverter::encodingForData function was inserting a zero character somewhere at the start of the string:

      #include <QByteArray>
#include <QDebug>
#include <QStringConverter>

int main()
{
    const QByteArray bytes { "Foo bar baz" };
    qDebug() << "before:" << bytes;
    QStringConverter::encodingForData(bytes.constData(), bytes.size());
    qDebug() << "after :" << bytes;
}

      output:

      before: "Foo bar baz"
after : "Foo \x00""ar baz"

      See comment for updated version for the latest Qt 6.0 Alpha release, where the parameter changed to QByteArrayView, which now crashes on this example.

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            laknoll Lars Knoll
            bjorn Thorbjørn Lindeijer
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              Created:
              Updated:
              Resolved:

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