defun.h

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/*

Copyright (C) 1994-2012 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 3 of the License, 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, see
<http://www.gnu.org/licenses/>.

*/

#if !defined (octave_defun_h)
#define octave_defun_h 1

#if defined (octave_defun_dld_h)
#error defun.h and defun-dld.h both included in same file!
#endif

#include "defun-int.h"

// Define a builtin function.
//
//   name is the name of the function, unqouted.
//
//   args_name is the name of the octave_value_list variable used to pass
//     the argument list to this function.
//
//   nargout_name is the name of the int variable used to pass the
//     number of output arguments this function is expected to produce.
//
//   doc is the simple help text for the function.

#define DEFUN(name, args_name, nargout_name, doc) \
  DEFUN_INTERNAL (name, args_name, nargout_name, doc)

// This one can be used when 'name' cannot be used directly (if it is
// already defined as a macro).  In that case, name is already a
// quoted string, and the internal name of the function must be passed
// too (the convention is to use a prefix of "F", so "foo" becomes "Ffoo").

#define DEFUNX(name, fname, args_name, nargout_name, doc) \
  DEFUNX_INTERNAL (name, fname, args_name, nargout_name, doc)

// This is a function with a name that can't be hidden by a variable.
#define DEFCONSTFUN(name, args_name, nargout_name, doc) \
  DEFCONSTFUN_INTERNAL (name, args_name, nargout_name, doc)

// Make alias another name for the existing function name.  This macro
// must be used in the same file where name is defined, after the
// definition for name.

#define DEFALIAS(alias, name) \
  DEFALIAS_INTERNAL (alias, name)

#endif