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ov-struct.h
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1996-11-07
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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_struct_h)
#define octave_struct_h 1
#if defined (__GNUG__)
#pragma interface
#endif
#include <cstdlib>
#include <string>
class ostream;
#include "mx-base.h"
#include "str-vec.h"
#include "error.h"
#include "oct-alloc.h"
#include "oct-map.h"
#include "ov-base.h"
#include "ov-typeinfo.h"
class Octave_map;
class octave_value_list;
class tree_walker;
// Data structures.
class
octave_struct : public octave_base_value
{
public:
octave_struct (void)
: octave_base_value () { }
octave_struct (const Octave_map& m)
: octave_base_value (), map (m) { }
octave_struct (const octave_struct& s)
: octave_base_value (), map (s.map) { }
~octave_struct (void) { }
octave_value *clone (void) { return new octave_struct (*this); }
void *operator new (size_t size)
{ return allocator.alloc (size); }
void operator delete (void *p, size_t size)
{ allocator.free (p, size); }
octave_value struct_elt_val (const string& nm, bool silent) const;
octave_value& struct_elt_ref (const string& nm);
bool is_defined (void) const { return true; }
bool is_map (void) const { return true; }
Octave_map map_value (void) const { return map; }
void print (ostream& os, bool pr_as_read_syntax = false);
int type_id (void) const { return t_id; }
string type_name (void) const { return t_name; }
static int static_type_id (void) { return t_id; }
static void register_type (void)
{ t_id = octave_value_typeinfo::register_type (t_name); }
private:
// The associative array used to manage the structure data.
Octave_map map;
// For custom memory management.
static octave_allocator allocator;
// Type id of struct objects, set by register_type().
static int t_id;
// Type name of struct objects, defined in ov-struct.cc.
static const string t_name;
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/