[Octave-bug-tracker] [bug #56298] [Windows] File Browser "rename" operation deletes file when only changing case of file name

[John Donoghue]

Follow-up Comment #4, bug #56298 (project octave):

We are using 5.12.1 in the 5.1.0 release.

Doing a quick qheck in windows, it appears that QFile.rename behaves
differently to QDir.rename

ie: 

QFile("lower.txt").rename("LOWER.TXT") will return all ok,

however


dir.rename("lower.txt", "LOWER.TXT") will fail


My test program:


// compiled:  g++ testrename.cpp -I /mingw64/qt5/include -L/mingw64/qt5/lib
-DQT_CORE_LIB -lQt5Core
#include <QtCore/qfile.h>
#include <QtCore/qdir.h>

int main()
{
  qDebug("running test");
  
  unlink("QtSoftware.txt"); unlink("qtsoftware.txt");

  // create file
  {
    QFile file("qtsoftware.txt"); file.open(QIODevice::WriteOnly);
file.close(); 
  }
  
  // rename test
  {  
    QFile file("qtsoftware.txt"); 
    
    if(!file.rename("QTSOFTWARE.TXT"))
    {
      qDebug("file error %s", qPrintable(file.errorString()));
    }
    else
    {
      qDebug("file rename was ok");
    }
    
    unlink("QTSOFTWARE.TXT"); unlink("qtsoftware.txt");
  }
  
  // create file
  {
    QFile file("qtsoftware.txt"); file.open(QIODevice::WriteOnly);
file.close(); 
  }
  
  // test QDir
  {
    
    QFile file("qtsoftware.txt"); 
    
    QDir dir(".");
 
    if(dir.rename("qtsoftware.txt", "QTSOFTWARE.TXT"))
    {
      qDebug("Qdir error %s", qPrintable(file.errorString()));
    }
    else
    {
      qDebug("QDir rename was ok");
    }
    
    unlink("QTSOFTWARE.TXT"); unlink("qtsoftware.txt");
  }  

  return 0;
}




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