Function svn_dirent_is_root 

pub unsafe extern "C" fn svn_dirent_is_root(
    dirent: *const c_char,
    len: apr_size_t,
) -> svn_boolean_t

Return TRUE if @a dirent is considered a root directory on the platform at hand. E.g.: On Posix: ‘/’ On Windows: ‘/’, ‘X:/’, ‘//server/share’, ‘X:’

Note that on Windows ‘/’ and ‘X:’ are roots, but paths starting with this root are not absolute.

@since New in 1.5.