Deprecate nargchk, nargoutchk?

[Rik]

4/21/11

John,

Can we deprecate nargchk and nargoutchk?  These functions check the number
of arguments nargin and nargout and print a string if conditions aren't
met.  However, these functions never got any adoption in the core.  Instead
the following idiom developed.

if (nargin < argmin || nargin > argmax)
  print_usage ();
endif

This has two advantages.  First, it lists all ways to call the function
derived from the function help string rather than just a one-time string
argument such as "Invalid call to fcn".  Second, given that function
calls have an execution cost, it is more efficient to keep everything
within one function.

Cheers,
Rik