ftraits.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:
// SPDX-FileCopyrightInfo: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
#ifndef DUNE_FTRAITS_HH
#define DUNE_FTRAITS_HH

#include <complex>
#include <vector>

namespace Dune {

  template<class T>
  struct FieldTraits
  {
    typedef T field_type;
    typedef T real_type;
  };

  template<class T>
  struct FieldTraits<const T>
  {
    typedef typename FieldTraits<T>::field_type field_type;
    typedef typename FieldTraits<T>::real_type real_type;
  };

  template<class T>
  struct FieldTraits< std::complex<T> >
  {
    typedef std::complex<T> field_type;
    typedef T real_type;
  };

  template<class T, unsigned int N>
  struct FieldTraits< T[N] >
  {
    typedef typename FieldTraits<T>::field_type field_type;
    typedef typename FieldTraits<T>::real_type real_type;
  };

  template<class T>
  struct FieldTraits< std::vector<T> >
  {
    typedef typename FieldTraits<T>::field_type field_type;
    typedef typename FieldTraits<T>::real_type real_type;
  };

} // end namespace Dune

#endif // DUNE_FTRAITS_HH