debug variable

[Albator]

Hello qt people :) ,

i have a little pbl :'(
i'don't understand why the qvector<qstring> is empty !
if you have any idea

    QVector<QString> vector;
    vector << "observation" << "diag" << "ca" << "pa";

    QVector<QString> all_ligne,all_ligne1,all_ligne2,all_ligne3;

for(int p=0;p<4;p++)
{

    QFile file(path_app+"/report/"+vector.at(p)+".txt");


    QString ligne;

    file.resize(0); // to flush

    if (file.open(QIODevice::ReadWrite)) {

        QTextStream stream(&file);


        if(p==0)
        stream << ui->observation->toPlainText(); //qtextedit
        if(p==1)
        stream << ui->diag->toPlainText();
        if(p==2)
        stream << ui->ca->toPlainText();
        if(p==3)
        stream << ui->pa->toPlainText();



        while(!stream.atEnd()) {

            ligne = stream.readLine();

            if(p==0)
            all_ligne.append(ligne);
            if(p==1)
            all_ligne1.append(ligne);
            if(p==2)
            all_ligne2.append(ligne);
            if(p==3)
            all_ligne3.append(ligne);


            }



        file.flush();


        file.close();



    }
    else {
        QMessageBox::critical(this, tr("Error"), tr("Double ouverture"));
        return;
    }



}

qDebug() << all_ligne.size() << all_ligne;

this code is in a qpushbutton so :
first shot - QVector()
second shot - 0 QVector("test")

why in the first shot he not take the value ?

[jsulm]

@Albator said in debug variable:

i'don't understand why the qvector<qstring> is empty !

How do you know it is empty? So, what happens?
Also, can you please post whole code and not just this snippet as it is not clear where vector is actually initialised.

[KroMignon]

@Albator said in debug variable:

i'don't understand why the qvector<qstring> is empty !

Perhaps you have to go to file begin after writing to be able to read it ;)
Add something like this before to reading loop:

stream.flush(); // to write all to the file
stream.seek(0); // go to file begining
while(!stream.atEnd()) {
...
}

[Albator]

@KroMignon

arf it was so simple, you just had to go back to the beginning of the doc...

thank you :)