/export/development/ViennaData/release/ViennaData-1.0.1/viennadata/config/default_data_for_key.hpp

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/* =======================================================================
   Copyright (c) 2010, Institute for Microelectronics, TU Vienna.
   http://www.iue.tuwien.ac.at
                             -----------------
                     ViennaData - The Vienna Data Storage Library
                             -----------------

   authors:    Karl Rupp                          rupp@iue.tuwien.ac.at

   license:    MIT (X11), see file LICENSE in the ViennaData base directory
======================================================================= */

#ifndef VIENNADATA_CONFIG_DEFAULT_DATA_FOR_KEY_HPP
#define VIENNADATA_CONFIG_DEFAULT_DATA_FOR_KEY_HPP

#include "viennadata/forwards.h"

namespace viennadata
{
  namespace config
  {
    template <typename KeyType>
    struct default_data_for_key
    {
      //by default, the data type must not be omitted, thus force a compiler error in this case (no matching function found)
    };

  } //namespace config  
  
} //namespace viennadata

#define VIENNADATA_ENABLE_DEFAULT_DATA_TYPE_FOR_KEY(arg_KEYCLASS, arg_DATACLASS) \
namespace viennadata { namespace config { \
  template <> struct default_data_for_key<arg_KEYCLASS> {  typedef arg_DATACLASS  type; }; \
} }


#endif