VoidValue.h

Go to the documentation of this file.

/*
 * VoidValue.h: interface for the CVoidValue class.
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program 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
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef __VOIDVALUE_H__
#define __VOIDVALUE_H__

#include "Value.h"

//
// Void value, used to transport *any* type of data
//
class CVoidValue : public CPropValue  
{
    //PLUGIN_DECLARE_SERIAL (CVoidValue,CValue)

public:
    CVoidValue()                                                                : m_bDeleteOnDestruct(false), m_pAnything(NULL)  { }
    CVoidValue(void * voidptr, bool bDeleteOnDestruct, AllocationTYPE alloctype)    : m_bDeleteOnDestruct(bDeleteOnDestruct), m_pAnything(voidptr)  { if (alloctype == STACKVALUE) CValue::DisableRefCount(); }
    virtual             ~CVoidValue();                                          // Destruct void value, delete memory if we're owning it

    virtual const STR_String &  GetText();                                              // Get string description of void value (unimplemented)
    virtual double      GetNumber()                                             { return -1; }

    virtual CValue*     Calc(VALUE_OPERATOR op, CValue *val);
    virtual CValue*     CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue* val);

    virtual CValue*     GetReplica();
    
    bool                m_bDeleteOnDestruct;
    void*               m_pAnything;
    
    
#ifdef WITH_CXX_GUARDEDALLOC
public:
    void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:CVoidValue"); }
    void operator delete( void *mem ) { MEM_freeN(mem); }
#endif
};

#endif // !defined _VOIDVALUE_H