1 ## Copyright (C) 2004-2012 Alois Schloegl
3 ## This file is part of Octave.
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 3 of the License, or (at
8 ## your option) any later version.
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>.
20 ## @deftypefn {Function File} {} isdir (@var{f})
21 ## Return true if @var{f} is a directory.
22 ## @seealso{is_absolute_filename, is_rooted_relative_filename}
25 function retval = isdir (f)
27 print_usage ("isdir");
30 ## Exist returns an integer but isdir should return a logical.
31 retval = (exist (f, "dir") == 7);
38 %!assert (isdir (pwd ()));
39 %!assert (! isdir ("this is highly unlikely to be a directory name"));