Mercurial > octave-nkf
view scripts/general/isdir.m @ 20508:4c2e76cbdc7d
cplxpair.m: Use tolerance that depends on Z to evaluate pairing (bug #45810).
* cplxpair.m: Update docstring to explain how tolerance input is calculated.
Validate TOL input is a positive scalar. Use standard code to find the first
singleton dimension. When determing whether a conjugate pair exists, use a
tolerance of TOL*eps (abs (z(i))). Use Octave coding convestions in BIST
tests. Add BIST tests for tolerance input. Add BIST tests for input
validation.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 01 Sep 2015 08:07:57 -0700 |
parents | 4197fc428c7d |
children |
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## Copyright (C) 2004-2015 Alois Schloegl ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} isdir (@var{f}) ## Return true if @var{f} is a directory. ## @seealso{exist, stat, is_absolute_filename, is_rooted_relative_filename} ## @end deftypefn function retval = isdir (f) if (nargin != 1) print_usage ("isdir"); endif ## Exist returns an integer but isdir should return a logical. retval = (exist (f, "dir") == 7); endfunction %!assert (isdir (pwd ())) %!assert (! isdir ("this is highly unlikely to be a directory name")) %!error isdir () %!error isdir (1, 2)