solvercategory.hh

// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_ISTL_SOLVERCATEGORY_HH
#define DUNE_ISTL_SOLVERCATEGORY_HH
 
#include <dune/common/exceptions.hh>
 
 
namespace Dune {
 
  struct SolverCategory
  {
    enum  Category {
      sequential,
      nonoverlapping,
      overlapping
    };
 
    template<typename OP>
    static Category category(const OP& op, decltype(op.category())* = nullptr)
    {
      return op.category();
    }
 
#ifndef DOXYGEN
    template<typename OP>
    static Category category(const OP& op, decltype(op.getSolverCategory())* = nullptr)
    {
      return op.getSolverCategory();
    }
 
    template<typename OP>
    static Category category(const OP& op, decltype(op.category)* = nullptr)
    {
      return OP::category;
    }
#endif
  };
 
  class InvalidSolverCategory : public InvalidStateException{};
 
} // end namespace
 
#endif