1######################################################################## 2## 3## Copyright (C) 2019-2021 The Octave Project Developers 4## 5## See the file COPYRIGHT.md in the top-level directory of this 6## distribution or <https://octave.org/copyright/>. 7## 8## This file is part of Octave. 9## 10## Octave is free software: you can redistribute it and/or modify it 11## under the terms of the GNU General Public License as published by 12## the Free Software Foundation, either version 3 of the License, or 13## (at your option) any later version. 14## 15## Octave is distributed in the hope that it will be useful, but 16## WITHOUT ANY WARRANTY; without even the implied warranty of 17## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18## GNU General Public License for more details. 19## 20## You should have received a copy of the GNU General Public License 21## along with Octave; see the file COPYING. If not, see 22## <https://www.gnu.org/licenses/>. 23## 24######################################################################## 25 26## -*- texinfo -*- 27## @deftypefn {} {} mustBeNonsparse (@var{x}) 28## 29## Require that input @var{x} is not sparse. 30## 31## Raise an error if the input @var{x} is sparse, as determined by 32## @code{issparse (@var{x})}. 33## 34## @seealso{issparse} 35## @end deftypefn 36 37function mustBeNonsparse (x) 38 39 if (nargin != 1) 40 print_usage (); 41 endif 42 43 if (issparse (x)) 44 label = inputname (1); 45 if (isempty (label)) 46 label = "input"; 47 endif 48 error ("%s must be nonsparse", label); 49 endif 50 51endfunction 52 53 54%!test 55%! mustBeNonsparse ([]); 56%! mustBeNonsparse (42); 57%! mustBeNonsparse (1:100); 58%! mustBeNonsparse ("Hello World"); 59 60%!error <Invalid call> mustBeNonsparse () 61%!error <input must be nonsparse> mustBeNonsparse (sparse (42)) 62