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- # Copyright (C) 1994, 1995 John W. Eaton
- #
- # 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 2, 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, write to the Free
- # Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- function retval = nargchk (nargin_min, nargin_max, n)
-
- # usage: nargchk (nargin_min, nargin_max, n)
- #
- # If N is in the range NARGIN_MIN to NARGIN_MAX, return the empty
- # matrix. Otherwise, return a message indicating whether N is too
- # large or too small.
-
- if (nargin != 3)
- usage ("nargchk (nargin_min, nargin_max, n)");
- endif
-
- if (nargin_min > nargin_max)
- error ("nargchk: nargin_min > nargin_max");
- endif
-
- if (n < nargin_min)
- retval = "nargchk: N is less than nargin_min";
- elseif (n > nargin_max)
- retval = "nargchk: N is greater than nargin_max";
- else
- retval = [];
- endif
-
- endfunction
-