If the file at newpath already exists, it will replaced.
Note that this will not copy files across filesystems/drives/volumes, as
that is a much more complicated (and possibly time-consuming) operation.
Which is to say, if this function fails, SDL_CopyFile() to a temporary file
in the same directory as newpath, then SDL_RenamePath() from the
temporary file to newpath and SDL_RemovePath() on oldpath might work
for files. Renaming a non-empty directory across filesystems is
dramatically more complex, however.
Rename a file or directory.
If the file at newpath already exists, it will replaced.
Note that this will not copy files across filesystems/drives/volumes, as that is a much more complicated (and possibly time-consuming) operation.
Which is to say, if this function fails, SDL_CopyFile() to a temporary file in the same directory as newpath, then SDL_RenamePath() from the temporary file to newpath and SDL_RemovePath() on oldpath might work for files. Renaming a non-empty directory across filesystems is dramatically more complex, however.