Availability:built-in
prolog_to_os_filename(?PrologPath, 
?OsPath)Convert between the internal Prolog path name conventions and the 
operating system path name conventions. The internal conventions follow 
the POSIX standard, which implies that this predicate is equivalent to 
=/2 (unify) on POSIX (e.g., Unix) systems. On Windows systems it changes 
the directory separator from \/