Problems with rename()

[ResidentBiscuit]

So, upon trying to help someone else with their file renaming, I ran into an issue as well. Here's a link to the other thread
http://www.cplusplus.com/forum/beginner/59833/#msg323137

Ok so I wrote up a quick program to see what could be going on, and realized that I also cannot rename a file.

int result;
  fstream test;
  test.open("oldname.txt");
  result= rename( "oldname.txt" , "newname.txt" );
  if ( result == 0 )
    puts ( "File successfully renamed" );
  else
    perror( "Error renaming file" );

Error I'm getting is

No such file or directory.

So that sounds like to me that the file is never being created. So I was thinking, maybe the default write permissions of fstream wouldn't allow renaming, so I looked into write permissions, and didn't see any that sound related. And I believe fstream has default read/write permissions anyways.

So, what is going on here? I'm stumped

EDIT:
I just tried manually creating a file before execution, and I still got the same error message. Bleh

[Peter87]

Try closing the stream before renaming the file.
test.close();

[ResidentBiscuit]

Well, I tried this as my second approach. This was when I created a file manually.

int result;
  result= rename( "test.txt" , "newname.txt" );
  if ( result == 0 )
    puts ( "File successfully renamed" );
  else
    perror( "Error renaming file" );
  cin.get();

I never even open a stream here and I get the same message

[eypros]

I think @Peter is right.
Check
http://www.cplusplus.com/reference/clibrary/cstdio/rename/
where it says

This is an operation performed directly on a file; No streams are involved in the operation.

[ResidentBiscuit]

I have no streams at all in my second attempt

[Peter87]

Are you sure files is in the correct directory? Sometimes IDEs sets the working directory to something special.

[ResidentBiscuit]

Oh wow, yea just moved it and it worked fine. Thanks!

[ne555]

So that sounds like to me that the file is never being created.

Yep "oldname.txt" doesn't exists, as you are openning as input/ouput it will not be created.

[ResidentBiscuit]

So if I open as fstream, it will not create the file if it doesnt exist?