Adding QChar into a QString

[agmar]

Hi,
just a simple problem here, any obvious solution?
```
code_text

[jsulm]

@agmar said in Adding QChar into a QString:

void MainWindow::writeSerial()
{
QString message;
std::QString message = QChar(mSpeed) + QChar(mAddress);
qDebug() << message;

}

Come on, it is self explanatory:

void MainWindow::writeSerial()
{
    QString message = QChar(mSpeed) + QChar(mAddress);
    qDebug() << message;
}

And I actually suggested:

void MainWindow::writeSerial()
{
    QString message = QChar(mSpeed);
    message += QChar(mAddress);
    qDebug() << message;
}

[jsulm]

@agmar What should the result be if you add a char to a char?
First add mSpeed to the string and afterwards mAddress...

[JonB]

@jsulm said in Adding QChar into a QString:

What should the result be if you add a char to a char?

That is a good question. What is the answer? :) QChar does not define a + operator, I don't know what the "ambiguous" warning here is telling us?

[jsulm]

@JonB Would be good to see the whole error message.
But as long as people post code and error messages as images (for whatever reason, it is way easier to copy paste text than creating and posting a screen shot) which are cut jsut where it becomes interesting...

[agmar]

@jsulm Ok , here is the whole thing .

It does not let me copy the error message tho.

[jsulm]

@agmar Is there a reason why you use std::string and QChar?
Why don't you use QString?
Errors/warnings can be copied in the tab at the bottom.

[agmar]

@jsulm yes , QChar allows me to add bytes in hex which should be sent out as a single message, changing it to QString doesnot seem to help,
mSpeed and mAddress are both declared as QChar above...

void MainWindow::writeSerial()
 {
   QString message;
   std::QString message = QChar(mSpeed) + QChar(mAddress);
     qDebug() << message;

 }

error: ‘QString’ is not a member of ‘std’; did you mean ‘wstring’?
88 | std::QString message = QChar(mSpeed) + QChar(mAddress);
| ^~~~~~~
| wstring

[jsulm]

@agmar said in Adding QChar into a QString:

void MainWindow::writeSerial()
{
QString message;
std::QString message = QChar(mSpeed) + QChar(mAddress);
qDebug() << message;

}

Come on, it is self explanatory:

void MainWindow::writeSerial()
{
    QString message = QChar(mSpeed) + QChar(mAddress);
    qDebug() << message;
}

And I actually suggested:

void MainWindow::writeSerial()
{
    QString message = QChar(mSpeed);
    message += QChar(mAddress);
    qDebug() << message;
}

[agmar]

@jsulm

That did it, thank you, i am just new to this, is all