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  1. Qt
  2. QTBUG-104985

QByteArray::fromBase64Encoding(toBase64()) round-trip fails for data > 2GiB

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    • 3
    • d76bf64531 (qt/qtbase/dev) d76bf64531 (qt/tqtc-qtbase/dev) 9d036b0c67 (qt/qtbase/6.4) 9d036b0c67 (qt/tqtc-qtbase/6.4) adb3b51eb4 (qt/tqtc-qtbase/6.2) 1fe0b3a7ec (qt/qtbase/6.3) 1fe0b3a7ec (qt/tqtc-qtbase/6.3)
    • Foundation Sprint 61, Foundation Sprint 62

      This code fails on 64-bit platforms:

      const QByteArray b1 = ~~~ more than 2GiB of data ~~~;
const QByteArray b64 = b1.toBase64();
const QByteArray b2 = QByteArray::fromBase64Encoding(b64);
assert(b1 == b2);

      There's some truncation going on.

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            mmutz Marc Mutz
            mmutz Marc Mutz
            Vladimir Minenko Vladimir Minenko
            Alex Blasche Alex Blasche
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              Created:
              Updated:
              Resolved: