#ifndef glas_concept_sparse_expression_concept_hpp
#define glas_concept_sparse_expression_concept_hpp

#include <glas/concept/is_concept.hpp>
#include <glas/concept/expression_concept.hpp>

namespace glas {

  struct sparse_expression_concept {
    typedef boost::mpl::vector< expression_concept > refinement_of ;
  } ;

  template <>
  struct is_concept< sparse_expression_concept >
  : boost::mpl::true_
  {} ;

}

#endif