1 ## Copyright (C) 2003-2012 John W. Eaton
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} {@var{dir} =} tempdir ()
21 ## Return the name of the system's directory for temporary files.
24 function dirname = tempdir ()
26 dirname = getenv ("TMPDIR");
27 if (isempty (dirname))
31 if (! strcmp (dirname(end), filesep))
32 dirname = cstrcat (dirname, filesep);
35 if (! isdir (dirname))
36 warning ("tempdir: `%s' does not exist or is not a directory", dirname);
42 %!assert (ischar (tempdir ()))
45 %! old_wstate = warning ("query");
47 %! old_tmpdir = getenv ("TMPDIR");
49 %! setenv ("TMPDIR", "__MY_TMP_DIR__");
50 %! assert (tempdir (), ["__MY_TMP_DIR__" filesep()]);
51 %! unwind_protect_cleanup
52 %! setenv ("TMPDIR", old_tmpdir);
53 %! warning (old_wstate);