Mercurial > octave-nkf
view scripts/time/is_leap_year.m @ 20639:a260a6acb70f
fix test failures introduced by a22d8a2eb0e5
* scripts/ode/private/integrate_adaptive.m: fix stepping backwards, fix
invocation of OutputFcn, fix text of some error messages
* scripts/ode/private/integrate_const.m: remove use of option OutputSave
* scripts/ode/private/integrate_n_steps.m: remove use of option OutputSave
author | Carlo de Falco <carlo.defalco@polimi.it> |
---|---|
date | Sun, 11 Oct 2015 23:09:01 +0200 |
parents | 2645f9ef8c88 |
children |
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## Copyright (C) 1996-2015 John W. Eaton ## ## 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} {} is_leap_year () ## @deftypefnx {Function File} {} is_leap_year (@var{year}) ## Return true if @var{year} is a leap year and false otherwise. ## ## If no year is specified, @code{is_leap_year} uses the current year. ## ## For example: ## ## @example ## @group ## is_leap_year (2000) ## @result{} 1 ## @end group ## @end example ## @seealso{weekday, eomday, calendar} ## @end deftypefn ## Author: jwe function retval = is_leap_year (year) if (nargin > 1) print_usage (); endif if (nargin == 0) t = clock (); year = t(1); endif retval = (rem (year, 4) == 0 & rem (year, 100) != 0) | (rem (year, 400) == 0); endfunction %!assert (is_leap_year (2000), true) %!assert (is_leap_year (1976), true) %!assert (is_leap_year (1000), false) %!assert (is_leap_year (1800), false) %!assert (is_leap_year (1600), true) %!error is_leap_year (1, 2)