interfaces.hh

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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ALUGRID_INTERFACES_HH
#define DUNE_ALUGRID_INTERFACES_HH
 
#include <dune/common/typetraits.hh>
 
namespace Dune {
 
  struct HasObjectStream {};
 
  template <bool hasStream, class GridImp, class DefaultImp>
  struct GridObjectStreamOrDefaultHelper {
    typedef typename GridImp::InStreamType InStreamType;
    typedef typename GridImp::OutStreamType OutStreamType;
  };
 
  template <class GridImp, class DefaultImp>
  struct GridObjectStreamOrDefaultHelper<false, GridImp, DefaultImp> {
    typedef DefaultImp InStreamType;
    typedef DefaultImp OutStreamType;
  };
 
  template <class GridImp, class DefaultImp>
  struct GridObjectStreamOrDefault
  {
    typedef GridObjectStreamOrDefaultHelper<
        Conversion<GridImp, HasObjectStream>::exists,
        GridImp,
        DefaultImp> GridObjectStreamTraits;
 
    typedef typename GridObjectStreamTraits :: InStreamType InStreamType;    //  read  stream
    typedef typename GridObjectStreamTraits :: OutStreamType OutStreamType;  //  write stream
  };
 
  struct IsDofManager {};
 
  struct HasHierarchicIndexSet {};
 
} // end namespace Dune
#endif