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c++qtqdatetime

Use QFileInfo to find creation date and time

Here's the code I have right now

/* Rename existing project files to .old */
if (FileIOUtil::fileExists(dest, outFileName))
{
  QFile oldFile(outFileName);
  QFileInfo fileInfo; fileInfo.setFile(oldFile);
  QDateTime created = fileInfo.lastModified();
  FileIOUtil::mvFile(dest, outFileName,
                     dest, outFileName + ".old" + created.toString());
}

Note: mvfile works like the unix command mv. It just moves a file to a new name.

However, this renames my project.c to project.c.old.Thu Jan 1 01:00:00 1970. I'm pretty sure the files I'm trying to rename aren't that old ;)

Any ideas why I'm getting the epoch as a result?

Solution

  • I had to modify the following line:

    QFile oldFile(outFileName);

    to 

    QFile oldFile(dest + outFileName);

    Or as @Riateche mentioned in his comment, remove oldFile and fileInfo variables completely and do:

    QFileInfo(dest+outFileName).created();