update packages

[CreaPhase.git] / octave_packages / m / general / colon.m

diff --git a/octave_packages/m/general/colon.m b/octave_packages/m/general/colon.m
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+## Copyright (C) 2008-2012 David Bateman
+##
+## 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} {@var{r} =} colon (@var{a}, @var{b})
+## @deftypefnx {Function File} {@var{r} =} colon (@var{a}, @var{b}, @var{c})
+## Method of a class to construct a range with the @code{:} operator.  For
+## example:
+##
+## @example
+## @group
+## a = myclass (@dots{});
+## b = myclass (@dots{});
+## c = a : b
+## @end group
+## @end example
+##
+## @seealso{class, subsref, subsasgn}
+## @end deftypefn
+
+function r = colon (varargin)
+  if (nargin != 0)
+    error ("colon: not defined for class \"%s\"", class(varargin{1}));
+  endif
+endfunction
+
+%!error colon (1)
+
+## FIXME -- what does colon () mean since it doesn't set a return value?