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  4. [SOLVED]How to Convert between QList<double> and QByteArray
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[SOLVED]How to Convert between QList<double> and QByteArray

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  • S Offline
    S Offline
    sharethl
    wrote on last edited by
    #1

    may be this example is correct, but the byte array it outputs is 164 bytes, suppose to be 160 bytes.
    @QByteArray byteArray;
    QDataStream stream(&byteArray, QIODevice::WriteOnly);

    QList<double> data;
    for(int i=0;i<20; i++){
        data.append(i+0.5);
    }
    stream << data;@
    

    And how to convert byteArray back to QList<double>?

    Thanks

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    • S Offline
      S Offline
      sharethl
      wrote on last edited by
      #2

      Well, just found it, Share to your guys.

      QList<double> to bytearray,
      @ QByteArray byteArray;
      QDataStream stream(&byteArray, QIODevice::WriteOnly);

          QList<double> data;
          for(int i=0;i<20; i++){
              data.append(i+0.5);
          }
          stream << data;
      

      @

      ByteArray back to QList<double>

      @QList<double> data;
      QDataStream stream(&byteArray, QIODevice::ReadWrite);
      stream >> data;@

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