CODEWITHSUNDEEP
c++qtqtcore
punksta
punksta

Reputation: 2808

Reading strings from file. QTextStream does not read file

I need to read strings from foo.txt:

#include <QDebug>
#include <QFile>
#include <QStringList>
#include <QTextStream>

int main( int argc, char** argv )
{
    QFile file("foo.txt");
    if (!file.open(QIODevice::ReadOnly))
        return 1;
    QStringList stringList;
    QTextStream textStream(&file);
    textStream.readLine();
    while (!textStream.atEnd())
        stringList << textStream.readLine();

    file.close();

    qDebug() << stringList;

    return 0;
}

outPut

file opened, but textStream always empty.

Upvotes: 0

Views: 344

Answers (1)

Troubadour
Troubadour

Reputation: 13421

From your comment it would appear that the executable is simply not finding the file as they are in different locations. There are a variety of ways to solve this and it depends on what the final use case is meant to be. Here are some ways you can solve the issue:

  • hard code in the path to the file (relative or absolute)
  • move the file to be in the same directory as the executable
  • use a command line option to tell the executable where the file is
  • use an environment variable to tell the executable where to look

For testing either of the first two options are quick and easy but you will probably want something better than that if you intend to take things further.

Upvotes: 1

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