Putting / checking numbers in file names

phil63

Hi,
I am using QT4 with QtCreator and windowsXP.

I would like to save text-files in giving them names made with letters and a number at the end (for example cours12).

Checking the last number used for the files (cours1/cours2/cours3/cours4 already exist)
2)5 is not used yet. Thus cours5 has to be created and saved

Could you help me to do this. Thank you in advance

SergioDanielG

Hi phil63, you can use something like this

@int n = 0;
while (true){
QString f = qApp->tr("cours%1.txt").arg(n);
if (! QFile::exists ( f ))
break;
else
n += 1;
}
//here you can continue and create coursN file
@

Hope it's util.
Regards

phil63

thank you for your help.
f is the file or the name of the file?

koahnig

the static method "exists":http://qt-project.org/doc/qt-4.8/qfile.html#exists takes a string. So, it must be the name of the file.

SergioDanielG

Sorry for the omission. Exactly, f is file name.
Regards.

phil63

Thank you to both of you.