Mercurial > octave
view scripts/miscellaneous/mustBeInteger.m @ 31193:6bcc5e6d77fe stable
unpack.m: Escape backslashes in paths on Windows (bug #62888).
* scripts/miscalleneous/unpack.m: Escape backslashes in paths on Windows. That
seems to be necessary to correctly handle double backslashes that prefix UNC
paths.
author | Markus Mützel <markus.muetzel@gmx.de> |
---|---|
date | Thu, 18 Aug 2022 08:40:57 +0200 |
parents | 796f54d4ddbf |
children | 303bbdc3c536 |
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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 {} {} mustBeInteger (@var{x}) ## ## Require that input @var{x} is integer-valued (but not necessarily ## integer-typed). ## ## Raise an error if any element of the input @var{x} is not a finite, ## real, integer-valued numeric value, as determined by various checks. ## ## @seealso{mustBeNumeric} ## @end deftypefn function mustBeInteger (x) if (nargin < 1) print_usage (); endif if (isinteger (x) || islogical (x)) return; endif but = []; if (! isnumeric (x)) but = sprintf ("it was non-numeric (found a %s)", class (x)); elseif (! isreal (x)) but = "it was complex"; elseif (any (! isfinite (x))) but = "there were non-finite values"; elseif (any (x != fix (x))) but = "it had fractional values in some elements"; endif if (! isempty (but)) label = inputname (1); if (isempty (label)) label = "input"; endif error ("%s must be integer-valued; but %s", label, but); endif endfunction %!test %! mustBeInteger ([]); %! mustBeInteger (42); %! mustBeInteger (1:1000); %! mustBeInteger (int32 (42)); %! mustBeInteger (true); %!error <Invalid call> mustBeInteger () %!error <it was non-numeric> mustBeInteger ("Hello World") %!error <it was complex> mustBeInteger ([1, 2i]) %!error <there were non-finite values> mustBeInteger (Inf) %!error <there were non-finite values> mustBeInteger (NaN) %!error <it had fractional values> mustBeInteger ([1 2 3 4.4])