arg_info.h

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/*****************************************************************************
* Copyright (c) 2001 - 2008 Marcus Boerger.  All rights reserved.
*
* 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
* ========================================================================= */

/* ------------------------------------------------------------------------ */
/* Name:      arg_info.h
 *
 * Requires:  
 * - Mbo.h
 */
/* ------------------------------------------------------------------------ */

#pragma once

#ifndef _ARG_INFO_H_
#define _ARG_INFO_H_

namespace mbo
{

/****************************************************************************/

template<typename _Targ, typename _Tvar = _Targ>
struct arg_info
{
    typedef _Targ    argument_t;
    typedef _Targ    variable_t;
};

template<typename _Targ, typename _Tvar>
struct arg_info<_Targ*, _Tvar*>
{
    typedef _Targ*   argument_t;
    typedef _Tvar*   variable_t;
};

template<typename _Targ, typename _Tvar>
struct arg_info<_Targ&, _Tvar&>
{
    typedef _Targ&   argument_t;
    typedef _Tvar&   variable_t;
};

template<>
struct arg_info<void, void>
{
    typedef void     argument_t;
    typedef void     variable_t;
};

template<typename _Targ, typename _Tvar = _Targ>
struct const_arg_info: arg_info<const _Targ, const _Tvar>
{
};

template<typename _Type>
struct copy_arg_info: arg_info<_Type, _Type>
{
};

template<typename _Type>
struct copy_arg_info<_Type*>: arg_info<const _Type*, _Type*>
{
};

template<typename _Type>
struct copy_arg_info<_Type&>: arg_info<const _Type&, _Type>
{
};

template<typename _Type>
struct copy_arg_info<const _Type*>: arg_info<const _Type*, const _Type*>
{
};

template<typename _Type>
struct copy_arg_info<const _Type&>: arg_info<const _Type&, const _Type&>
{
};

}; // namespace

#endif // _ARG_INFO_H_

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