When you use varargin and varargout for
code generation, there are these restrictions:
If you use varargin to define an argument to an
entry-point function, the code generator produces the function with a fixed
number of arguments. This fixed number of arguments is based on the number of
arguments that you specify when you generate code.
You cannot write to varargin. If you want to write to input
arguments, copy the values into a local variable.
To index into varargin and varargout,
use curly braces {}, not parentheses
().
The code generator must be able to determine the value of the index into
varargin or varargout.