Regular expression

[aguleo]

In a Qt designer Form Class e have this lines in the constructor:

rx = new QRegExp("[0-9]{1,3}");
ui->lineEdit->setValidator(new QRegExpValidator (*rx, this));

rx = new QRegExp("[0-9]{1,3}");
ui->lineEdit->setValidator(new QRegExpValidator (*rx, this));

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Can i manage this same effect in a single line?

In a Qt designer Form Class e have this lines in the constructor:

rx = new QRegExp("[0-9]{1,3}");
ui->lineEdit->setValidator(new QRegExpValidator (*rx, this));

rx = new QRegExp("[0-9]{1,3}");
ui->lineEdit->setValidator(new QRegExpValidator (*rx, this));

To copy to clipboard, switch view to plain text mode 

Can i manage this same effect in a single line?

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Added after 4 minutes:

ops...

ui->lineEdit->setValidator(new QRegExpValidator (QRegExp("[0-9]{1,3}"), this));

ui->lineEdit->setValidator(new QRegExpValidator (QRegExp("[0-9]{1,3}"), this));

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