checking files in all sub-directories

[QT_QT_QT]

Hey guys! Give you a scenario . You have a folder A, inside the folder you ll have another three folders, the name of these three folder inside folder A are B,C and D. Now, Folder B and D is a empty folder, which means the folders B and D dont have anything inside the folder, but for folder C ,yes, its not empty, there is an another empty file called folder E which located inside folder C. Right now, i want to check the folder E in which folder , want to check either is in B,C or D. Let me make my question simpler, how do i check which files have the folder E in folder A?
FYI, i have already implement some code for this scenario . Here the codes:

void CheckForFiles_Form ::recursiveAddDir(QDir d, bool recursive)
{

    d.setSorting(QDir::Name);
    QDir::Filters df = QDir::Files | QDir::NoDotAndDotDot;
    if(recursive) df |= QDir::Dirs;
    QStringList qsl = d.entryList  (df,QDir::Name|QDir::DirsFirst);
    foreach (const QString &entry, qsl){
        QFileInfo fInfo(d,entry);
        if(fInfo.isDir()){
            QDir sd(fInfo.absoluteFilePath());
            recursiveAddDir(sd,true);
        }else{
            if(**fInfo.completeSuffix()== "txt"**)
                           qDebug() << fInfo.filePath();

void CheckForFiles_Form::on_pushButton_clicked()
{
    QDir r("C:/Users/USER/Desktop/FileA/");
    recursiveAddDir(r, true);
}

Above codes can only look for extension of a file , eg: ..mp3,..zip and *.txt . This is not what i want, what i wanted is to look for the name of the folder .not the extension. I tried modify the codes that i provided, what have i modified is instead of fInfo.completeSuffix()=="txt" , i changed to fInfo.completeBaseName()=="fileE". The modification that i made will give you no error when you compile and build, but, no result will display out when you try to execute this function . Some one here please guide me , i already done most of the implementation of this problem , right now i just need to do some modification in order to meet my requirement. thank you!

[mrjj]

Hi
You should check with qDebug what files it really finds
Also
fInfo.completeBaseName() should be it.
So QDebug all you compare.
also try
fInfo.completeBaseName().Contains("fileE");
or
http://doc.qt.io/qt-5/qstring.html#indexOf

I am not sure == compares as you think.

[SGaist]

Hi,

Since you are looking for a folder, why not filter your entry list ask only for the Dirs ? Then it's a simple check with QStringList::contains.

[QT_QT_QT]

@SGaist

Hi, thanks for replying. I dont really understand the comment that you posted, perhaps you can give an example, so that i can have a clear picture. if(recursive) {df |= QDir::Dirs;} , isn't this line to ask only for dir? thank you.

[QT_QT_QT]

 QString root = "C:/Users/USER/Desktop/FileA/";
    QDirIterator it(root,QStringList() << "fileE",QDir::Files,QDirIterator::Subdirectories);
            while(it.hasNext())
    {
        qDebug() << it.next();
        qDebug() << it.fileName();
    }

tried to list all the directories and perform the checking operation unto it. But , this only work with file extension. Initially, its was "*.txt" , but i changed to "fileE" , it will give no errors when you try to compile. However, it doesn't produce any result . I m really dont have clues to proceed anymore. All i want to list all subdirectories, perform a checking operation unto the sundiretories, and lastly return an absolute path for the result . Thank you

[the_]

@QT_QT_QT
Does there any file named fileE exist in any subfolders as you use QDir::Files as filter?

QDirIterator(const QString &path, const QStringList &nameFilters, QDir::Filters filters = QDir::NoFilter, IteratorFlags flags = NoIteratorFlags) only finds any entries, that have exact matching if you put a string without wildcards into the QStringList. So if you do not have any fileE somewhere it will be empty.

If you want to search for folders you should use QDir::Dirs for the filter parameter

[QT_QT_QT]

Dear All, after hours of struggling . Finally i come out with a solution ! Feel free to take a look!
Credit to @SGaist @mrjj @the_

//This is the fliters
QDir::Filters df = QDir::Dirs |QDir::NoDotAndDotDot;
    QDirIterator::IteratorFlag dff = QDirIterator::Subdirectories;



    QString root = "C:/Users/USER/Desktop/FileA/";
    QDirIterator it(root,df,dff);
     while(it.hasNext())
    {
        //performing checking operation
       //QString str = "fileE";
         QString str2 = it.next();

         if(str2.contains("fileE"))
         {
            qDebug()<<str2;
         }