Problem with QList

Hello,
if im using a QList for images, images contains a null pointer after each iteration of the loop. It works fine with QLinkedList or QVector.
Why?

Code:

---

QStringList::iterator i = files.begin();
	while (i != files.end()) {
		QImage img(*i);
		images << img;
		i++;
 
	}

---

thanks
Garg

What null pointer?

E.g. there are 2 files, after iterating threw the while-loop...

QList:
...images contain two elements of type QImage, but they are 0x00000000.


QVector:
...images contain two elements of type QImage, but their adresses are valid locations.

Here an image of my vs debug output:
http://www.vxr.de/images/foo.jpg

What does img.isNull() return in both cases?

false in both cases.. hmmm

Is the code you posted the exact code you use?

Code:

---

void CodebookCreator::loadImages(QString &dir, QStringList &files)
{
	QDir::setCurrent(dir);
	QStringList::iterator i = files.begin();
	while (i != files.end()) {
		if (QFile::exists(*i)) {
			QImage img(*i);
			images << img;
			i++;
		} else {
			QMessageBox::warning(0, "Datei nicht gefunden", 
				"Datei " + *i + " konnte nicht geladen werden.");
			i++;
		}
	}
}

---

thats it.

only the header file differs.

Code:

---

QList<QImage> images;

---

Code:

---

QVector<QImage> images;

---

And it works with vector but not with a list?

I tested it again. It works with both, i just misinterpreted the debug output ... i'm not very experienced with my IDE, sorry for that.

br
Garg