Sacado_Fad_Exp_ViewFad.hpp

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// ***********************************************************************
//
//                           Sacado Package
//                 Copyright (2006) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
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// Lesser General Public License for more details.
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#ifndef SACADO_FAD_EXP_VIEWFAD_HPP
#define SACADO_FAD_EXP_VIEWFAD_HPP
 
#include "Sacado_Fad_Exp_GeneralFad.hpp"
#include "Sacado_Fad_Exp_ViewStorage.hpp"
 
#if defined(HAVE_SACADO_KOKKOSCORE)
#include "Kokkos_Atomic.hpp"
#include "impl/Kokkos_Error.hpp"
#endif
 
namespace Sacado {
 
  namespace Fad {
  namespace Exp {
 
    template <typename T, unsigned static_length, unsigned static_stride, typename U>
    using  ViewFad = GeneralFad< ViewStorage<T,static_length,static_stride,U> >;
 
    // Class representing a pointer to ViewFad so that &ViewFad is supported
    template <typename T, unsigned sl, unsigned ss, typename U>
    class ViewFadPtr : public ViewFad<T,sl,ss,U> {
    public:
 
      // Storage type base class
      typedef ViewFad<T,sl,ss,U> view_fad_type;
 
      // Bring in constructors
      using view_fad_type::view_fad_type;
 
      // Add overload of dereference operator
      SACADO_INLINE_FUNCTION
      view_fad_type* operator->() { return this; }
 
      // Add overload of dereference operator
      SACADO_INLINE_FUNCTION
      view_fad_type& operator*() { return *this; }
    };
 
  } // namespace Exp
  } // namespace Fad
 
  template <typename,unsigned,unsigned> struct ViewFadType;

  template< class S, unsigned length, unsigned stride >
  struct ViewFadType< Fad::Exp::GeneralFad<S>, length, stride > {
    typedef Fad::Exp::ViewFad< typename S::value_type,length,stride,Fad::Exp::GeneralFad<S> > type;
  };


  template< class S, unsigned length, unsigned stride >
  struct ViewFadType< const Fad::Exp::GeneralFad<S>, length, stride > {
    typedef Fad::Exp::ViewFad< const typename S::value_type,length,stride,Fad::Exp::GeneralFad<S> > type;
  };
 
  // Specialization of BaseExprType for ViewFad, to use the base fad type
  template <typename T, unsigned static_length, unsigned static_stride, typename U>
  struct BaseExprType< Fad::Exp::GeneralFad< Fad::Exp::ViewStorage<T,static_length,static_stride,U> > > {
    typedef U type;
  };


  template <typename ValueT, unsigned Size, unsigned Stride, typename Base>
  struct ScalarType< Fad::Exp::ViewFad<ValueT,Size,Stride,Base> > {
    typedef typename ScalarType<ValueT>::type type;
  };

  template <typename ValueT, unsigned Size, unsigned Stride, typename Base>
  struct ValueType< Fad::Exp::ViewFad<ValueT,Size,Stride,Base> > {
    typedef ValueT type;
  };
 
} // namespace Sacado
 
#endif // SACADO_FAD_EXP_VIEWFAD_HPP