function result = isempty(con)% Determine whether or not a linear constraint object is empty %% Syntax:%   "result = isempty(con)"%% Description:%   "isempty(con)" returns a "1" if "con" is empty and "0" otherwise. %% Examples:%   Given a linear constraint object, "con" representing a square in the%   x3 = 0 plane with corners at (x1,x2) pairs (2,1), (2,3), (4,3), and%   (4,1)  %%%%   "result = isempty(con)"%%%%   returns %%%%   "result = 0"%%%%   while %%%%   "con = linearcon"%%   "result = isempty(con)"%%%%   returns %%%%   "result = 1"%% See Also:%   linearconresult = isempty(con.CE) & isempty(con.dE) & ...         isempty(con.CI) & isempty(con.dI);