id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6809	Implementation of filesystem::rename() method for MS Windows is wrong	Sergey Kazakov <sergeyyk@…>	Beman Dawes	"simple program:
  try
  {
    boost::filesystem::rename( ""c:\1.txt"", ""d:\1.txt"" );
  }
  catch( boost::filesystem::filesystem_error& e )
  {
    std::cout << ""filesystem_error: "" << e.what();
  }

output:
filesystem_error: boost::filesystem::rename: The system cannot move the file to a different disk drive: ""c:\1.txt"", ""d:\1.txt""


The problem is caused by BOOST_MOVE_FILE macro definition
in \libs\filesystem\v3\src\operations.cpp file

#   define BOOST_MOVE_FILE(OLD,NEW)(::MoveFileExW(OLD, NEW, MOVEFILE_REPLACE_EXISTING)!= 0)

According to MSDN:
When moving a file, the destination can be on a different file system or volume. If the destination is on another drive, you must set the MOVEFILE_COPY_ALLOWED flag in dwFlags. 

Without this flag MoveFileEx() method fails with error code 0x11 (""The system cannot move the file to a different disk drive"").

So bug can be fixed in following way
#   define BOOST_MOVE_FILE(OLD,NEW)(::MoveFileExW(OLD, NEW, MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED)!= 0)

Please find a patch attached.
"	Bugs	closed	To Be Determined	filesystem	Boost 1.48.0	Problem	fixed	filesystem rename windows