function [varargout] = isstruct(varargin)
%ISSTRUCT True for structures.
%   ISSTRUCT(S) returns logical true (1) if S is a structure
%   and logical false (0) otherwise.
%
%   See also STRUCT, ISFIELD, ISCELL, ISNUMERIC, ISOBJECT.

%   Copyright 1984-2002 The MathWorks, Inc. 
%   $Revision: 1.17.4.1 $  $Date: 2004/10/27 23:53:13 $

if nargout == 0
  builtin('isstruct', varargin{:});
else
  [varargout{1:nargout}] = builtin('isstruct', varargin{:});
end