sprint/container/ref_any.h

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/******************************************************************************
*   sprint::ref_any
*
*   Copyright (C) 2005-2011  Paolo Medici <www.pmx.it>
*
*  This library is free software; you can redistribute it and/or
*  modify it under the terms of the GNU Lesser General Public
*  License as published by the Free Software Foundation; either
*  version 2.1 of the License, or (at your option) any later version.
*
*  This library 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
*  Lesser General Public License for more details.
*
*  You should have received a copy of the GNU Lesser General Public
*  License along with this library; if not, write to the Free Software
*  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*
*******************************************************************************/

#ifndef _SPRINT_REF_ANY_H
#define _SPRINT_REF_ANY_H

#include <sprint/serializable_rtti.h>

namespace sprint {

struct ref_any {
       Type type;           
       void *mem;           
       unsigned int size;   

       template<class T>
       inline ref_any(T *p) 
       { type = rtti<T>(), mem = reinterpret_cast<void *>(p), size = sizeof(p); }
       
       template<class T>
       inline ref_any(T *p, int len)
       {
         type = rtti<T *>(), mem = reinterpret_cast<void *>(p), size = len * sizeof(T);
       }
       
       // check without exception
       template<class T>
       inline bool is() const {
        return (rtti<T>() == type);
       }

       // cast container to T without check       
       template<class T>
       inline T get() const 
       {
       return *reinterpret_cast<T*>(mem);
       }

       // cast container to T without check       
       template<class T>
       inline void set(const T & s) const 
       {
       *reinterpret_cast<T*>(mem) = s;
       }
            
       };

};

#endif