Write one value per line in text file

[babygal]

Code :

QString filename = "textfile.txt";
QFile file(filename);
QString val; 
float v;
 
    if (file.open(QIODevice::WriteOnly | QIODevice::Truncate))
    {
          for ( int i =0; i<Results.localresults.size() ; i++)
          {
               v = Results.localresults.at(i);
               val = QString::number(v);
               char *valtoAsciidata = val.toAscii().data();
               QTextStream out(&file);
               out << v << endl ;     
          }
    }

QString filename = "textfile.txt";
QFile file(filename);
QString val; 
float v;

    if (file.open(QIODevice::WriteOnly | QIODevice::Truncate))
    {
          for ( int i =0; i<Results.localresults.size() ; i++)
          {
               v = Results.localresults.at(i);
               val = QString::number(v);
               char *valtoAsciidata = val.toAscii().data();
               QTextStream out(&file);
               out << v << endl ;     
          }
    }

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I have written code as above to actually write values to a text file. But it writes the values continuously . What I want is one value to be written in one single line, then the next value on the next line.
How to code in such a way that it writes one value per line ?