Mercurial > octave
view scripts/miscellaneous/mustBeReal.m @ 31191:bb9d776eafac stable
Fix wrong color in PDF printout of some latex strings (bug #62884)
* octave-svgconvert (draw): For "rect" elements only set brush color if
necessary and eventually restore to previous color.
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Sun, 14 Aug 2022 18:24:07 +0200 |
parents | 796f54d4ddbf |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2019-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} mustBeReal (@var{x}) ## ## Require that input @var{x} is real. ## ## Raise an error if the input @var{x} is not real, as determined by ## @code{isreal (@var{x})}. ## ## @seealso{mustBeFinite, mustBeNonNan, isreal} ## @end deftypefn function mustBeReal (x) if (nargin < 1) print_usage (); endif if (! isreal (x)) label = inputname (1); if (isempty (label)) label = "input"; endif error ("%s must be real", label); endif endfunction %!test %! mustBeReal ([]); %! mustBeReal (42); %! mustBeReal (Inf); %! mustBeReal (NaN); %! mustBeReal (1:100); %! mustBeReal (int32 (42)); %!error <Invalid call> mustBeReal () %!error <must be real> mustBeReal (i) %!error <input must be real> mustBeReal (2 + i)