78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
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* VoidValue.h: interface for the CVoidValue class.
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file VoidValue.h
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* \ingroup expressions
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*/
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#ifndef __VOIDVALUE_H__
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#define __VOIDVALUE_H__
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#include "Value.h"
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//
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// Void value, used to transport *any* type of data
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//
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class CVoidValue : public CPropValue
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{
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//PLUGIN_DECLARE_SERIAL (CVoidValue,CValue)
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public:
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/// Construction/destruction
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CVoidValue() : m_bDeleteOnDestruct(false), m_pAnything(NULL) { }
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CVoidValue(void * voidptr, bool bDeleteOnDestruct, AllocationTYPE alloctype) : m_bDeleteOnDestruct(bDeleteOnDestruct), m_pAnything(voidptr) { if (alloctype == STACKVALUE) CValue::DisableRefCount(); }
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virtual ~CVoidValue(); // Destruct void value, delete memory if we're owning it
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/// Value -> String or number
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virtual const STR_String & GetText(); // Get string description of void value (unimplemented)
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virtual double GetNumber() { return -1; }
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/// Value calculation
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virtual CValue* Calc(VALUE_OPERATOR op, CValue *val);
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virtual CValue* CalcFinal(VALUE_DATA_TYPE dtype, VALUE_OPERATOR op, CValue* val);
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/// Value replication
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virtual CValue* GetReplica();
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/// Data members
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bool m_bDeleteOnDestruct;
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void* m_pAnything;
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#ifdef WITH_CXX_GUARDEDALLOC
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public:
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void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:CVoidValue"); }
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void operator delete( void *mem ) { MEM_freeN(mem); }
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#endif
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};
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#endif // !defined _VOIDVALUE_H
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