Is there a way to get the functionality of open(..., O_CREAT|O_EXCL) under Windows? For those who don't know, O_EXCL opens the file "exclusively", guaranteeing that the file we're opening will not be overwritten. (Note that it's not enough to check that the file doesn't exist before opening it; it can spring into existence between the check and the open.)
I cannot find a way to do the equivalent on Windows. Does O_EXCL just work on Windows? A search for O_EXCL on MSDN doesn't reveal any results.
