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89 lines
3.8 KiB
C
89 lines
3.8 KiB
C
/*****************************************************************
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| AP4 - Target Platform and Compiler Configuration
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| Copyright 2002-2008 Axiomatic Systems, LLC
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| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
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| Unless you have obtained Bento4 under a difference license,
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| this version of Bento4 is Bento4|GPL.
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| Bento4|GPL is free software; you can redistribute it and/or modify
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| it under the terms of the GNU General Public License as published by
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| the Free Software Foundation; either version 2, or (at your option)
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| any later version.
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| Bento4|GPL 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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| You should have received a copy of the GNU General Public License
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| along with Bento4|GPL; see the file COPYING. If not, write to the
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| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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| 02111-1307, USA.
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****************************************************************/
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/**
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* @file
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* @brief Dynamic Cast Support
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*/
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#ifndef _AP4_DYNAMIC_CAST_H_
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#define _AP4_DYNAMIC_CAST_H_
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/*----------------------------------------------------------------------
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| includes
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+---------------------------------------------------------------------*/
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#include "Ap4Config.h"
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/*----------------------------------------------------------------------
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| macros
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+---------------------------------------------------------------------*/
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#if defined(AP4_CONFIG_NO_RTTI)
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#define AP4_DYNAMIC_CAST(_class,_object) \
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( ((_object)==0) ? 0 : reinterpret_cast<_class*>((_object)->DynamicCast(&_class::_class_##_class)) )
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#define AP4_IMPLEMENT_DYNAMIC_CAST(_class) \
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static int _class_##_class; \
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virtual void* DynamicCast(const void* class_anchor) { \
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if (class_anchor == &_class::_class_##_class) { \
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return static_cast<_class*>(this); \
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} \
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return NULL; \
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}
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#define AP4_IMPLEMENT_DYNAMIC_CAST_D(_class,_superclass)\
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static int _class_##_class; \
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virtual void* DynamicCast(const void* class_anchor) { \
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if (class_anchor == &_class::_class_##_class) { \
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return static_cast<_class*>(this); \
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} else { \
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return _superclass::DynamicCast(class_anchor); \
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} \
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}
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#define AP4_IMPLEMENT_DYNAMIC_CAST_D2(_class,_superclass,_mixin)\
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static int _class_##_class; \
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virtual void* DynamicCast(const void* class_anchor) { \
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if (class_anchor == &_class::_class_##_class) { \
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return static_cast<_class*>(this); \
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} else { \
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void* sup = _superclass::DynamicCast(class_anchor); \
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if (sup) return sup; \
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return _mixin::DynamicCast(class_anchor); \
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} \
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}
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#define AP4_DEFINE_DYNAMIC_CAST_ANCHOR(_class) int _class::_class_##_class = 0;
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#define AP4_DEFINE_DYNAMIC_CAST_ANCHOR_S(_class,_subclass) int _class::_class_##_subclass = 0;
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#else
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#define AP4_DYNAMIC_CAST(_class,_object) dynamic_cast<_class*>(_object)
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#define AP4_IMPLEMENT_DYNAMIC_CAST(_class)
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#define AP4_IMPLEMENT_DYNAMIC_CAST_D(_class,_superclass)
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#define AP4_IMPLEMENT_DYNAMIC_CAST_D2(_class,_superclass,_mixin)
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#define AP4_DEFINE_DYNAMIC_CAST_ANCHOR(_class)
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#define AP4_DEFINE_DYNAMIC_CAST_ANCHOR_S(_class, _subclass)
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#endif
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#endif // _AP4_DYNAMIC_CAST_H_
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