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defun-int.h
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1997-08-20
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/*
Copyright (C) 1996 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined (octave_defun_int_h)
#define octave_defun_int_h 1
#include "variables.h"
// MAKE_BUILTINS is defined to extract function names and related
// information and create the *.def files that are eventually used to
// create the buitlins.cc file.
#ifdef MAKE_BUILTINS
// Generate code to install name in the symbol table. The script
// mkdefs will create a .def file for every .cc file that uses DEFUN,
// DEFUN_TEXT, or DEFUN_DLD.
#define DEFUN_INTERNAL(name, args_name, nargout_name, is_text_fcn, doc) \
BEGIN_INSTALL_BUILTIN \
extern DECLARE_FUN (name, args_name, nargout_name); \
DEFINE_FUN_STRUCT (name, is_text_fcn, doc); \
install_builtin_function (S ## name); \
END_INSTALL_BUILTIN
// Generate code for making another name for an existing function.
#define DEFALIAS_INTERNAL(alias, name) \
BEGIN_INSTALL_BUILTIN \
alias_builtin (#alias, #name); \
END_INSTALL_BUILTIN
#else /* ! MAKE_BUILTINS */
// Generate the first line of the function definition. This ensures
// that the internal functions all have the same signature.
#define DEFUN_INTERNAL(name, args_name, nargout_name, is_text_fcn, doc) \
DECLARE_FUN (name, args_name, nargout_name)
// No definition is required for an alias.
#define DEFALIAS_INTERNAL(name, alias)
#endif /* ! MAKE_BUILTINS */
// Define the structure that will be used to insert this function into
// the symbol table.
#define DEFINE_FUN_STRUCT(name, is_text_fcn, doc) \
static builtin_function S ## name (#name, is_text_fcn, F ## name, doc)
#define DEFINE_FUN_STRUCT_FUN(name, is_text_fcn, doc) \
builtin_function& \
FS ## name (void) \
{ \
static builtin_function *retval = 0; \
\
if (! retval) \
retval = new builtin_function (#name, is_text_fcn, F ## name, doc); \
\
return *retval; \
}
#define DECLARE_FUN(name, args_name, nargout_name) \
octave_value_list F ## name (const octave_value_list& args_name, int nargout_name)
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/