generator-combinations.hpp

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/*
  GENERATOR-COMBINATIONS.hpp  -  generate combinations and variations

  Copyright (C)         Lumiera.org
    2011,               Hermann Vosseler <Ichthyostega@web.de>

  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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/


#ifndef LIB_META_GENERATOR_COMBINATIONS_H
#define LIB_META_GENERATOR_COMBINATIONS_H

#include "lib/meta/typelist.hpp"
#include "lib/meta/typelist-manip.hpp"
#include "lib/meta/generator.hpp"



namespace lib {
namespace meta{
  
  
  template<class TYPES_1, class TYPES_2>
  struct CartesianProduct
    : Distribute< typename TYPES_1::List
                , typename TYPES_2::List
                >
    { };
  
  
  
  template< template<class,class,class> class _X_>
  struct PickParametersFromSublist
    {
      template<class SUBLIST, class BASE>
      struct SingleCaseInstantiation
        : _X_< typename Pick<SUBLIST,0>::Type
             , typename Pick<SUBLIST,1>::Type
             , BASE
             >
        { };
    };
  
  
  template
    < class TYPES_1, class TYPES_2           
    , template<class,class,class> class _X_  
    , class BASE = NullType
    >
  struct InstantiateChainedCombinations
    : InstantiateChained< typename CartesianProduct<TYPES_1,TYPES_2>::List
                        , PickParametersFromSublist<_X_>::template SingleCaseInstantiation
                        , BASE
                        >
    { };
  
  
  
}} // namespace lib::meta
#endif