How do I create an absolute file path from a QDir and a relative file path?

Question

In my program I have a QDir representing the location of the executable using QCoreApplication::applicationDirPath() and a QString that represents a path to a file relative to the executable directory (using .. , etc.). How do I turn this information into an absolute file path to the same file?

score 6 · Answer 1 · answered Jun 27 '13 at 05:17

You can use QFileInfo for that, use the constructor that takes a QDir and a QString, then call absoluteFilePath or canonicalFilePath depending on what you want exactly.

QDir dir;
// ...
QString file;
// ...
QFileInfo fi(dir, file);
QString canonical = fi.canonicalFilePath();

score 4 · Answer 2 · answered Jun 27 '13 at 08:36

4

The simpliest way is to use QDir::absoluteFilePath.

QDir dir(QCoreApplication::applicationDirPath());
QString absolute_file_path = dir.absoluteFilePath(relative_file_path);

answered Jun 27 '13 at 08:36

Pavel Strakhov

39,123
5
88
127

How do I create an absolute file path from a QDir and a relative file path?

2 Answers2