c++ - How to emit a signal with array parameter to another Thread -

i new qt , want emit signal qthread main thread few parameter. doesn't work. doing wrong?

//reader.h signals:         void updatedata(quint16 fw, qstring serial, quint16 *calibration); //reader.cpp ... {     quint16 calibration[8];     quint16 fw;     qstring serialnumber;     readdata(&fw, &serialnumber, calibration);     // declaration: void reader::readdata(quint16 *fw, qstring *serial, quint16 *calibration)      emit updatedata(fw, serialnumber, calibration); // in function parameters assigned correctly } //mainwindow.h  public slots:                    void updatedata(quint16 fw, qstring serialnumber, quint16 *calibration); //mainwindow.cpp void mainwindow::updatedata(quint16 fw, qstring serialnumber, quint16 *calibration) {        ui->lineeditfw->settext(qstring::number(fw));     // correct     ui->lineeditserialnumber->settext(serialnumber);  // correct     ui->spinboxreg1->setvalue(calibration[0]);        // incorrect!     ui->spinboxreg2->setvalue(calibration[1]);        // ..array calibration     ui->spinboxreg3->setvalue(calibration[2]);        // ..is filled     ui->spinboxreg4->setvalue(calibration[3]);        // ..random data!     ui->spinboxreg5->setvalue(calibration[4]);     ui->spinboxreg6->setvalue(calibration[5]);     ui->spinboxreg7->setvalue(calibration[6]);     ui->spinboxreg8->setvalue(calibration[7]); } //... init() {    // other connection of thread , reader object    //...    connect(reader, signal(updatedata(quint16, qstring, quint16 *)), this, slot(updatedata(quint16, qstring, quint16 *)));    //...    reader->movetothread(readerthread);    readerthread->start(); } 

i tried array instead of pointer. didn't work well.

thanks.

calibration[8] on stack, destroyed when reader function returns. need make persistent (allocate on heap) still exists when signal delivered.