Sacado_Fad_Exp_ExpressionTraits.hpp

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//
//                           Sacado Package
//                 Copyright (2006) Sandia Corporation
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
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#ifndef SACADO_FAD_EXP_EXPRESSIONTRAITS_HPP
#define SACADO_FAD_EXP_EXPRESSIONTRAITS_HPP

#include "Sacado_Traits.hpp"

#include "Sacado_Fad_Exp_Expression.hpp"

namespace Sacado {

  SACADO_EXPR_PROMOTE_SPEC( Fad::Exp )

  
  template <typename T>
  struct ScalarType< Fad::Exp::Expr<T> > {
    typedef typename ScalarType< typename Fad::Exp::Expr<T>::value_type >::type type;
  };

  template <typename T>
  struct ValueType< Fad::Exp::Expr<T> > {
    typedef typename Fad::Exp::Expr<T>::value_type type;
  };

  template <typename T>
  struct IsADType< Fad::Exp::Expr<T> > {
    static const bool value = true;
  };

  template <typename T>
  struct IsScalarType< Fad::Exp::Expr<T> > {
    static const bool value = false;
  };

  template <typename T>
  struct IsSimdType< Fad::Exp::Expr<T> > {
    static const bool value = IsSimdType< typename Fad::Exp::Expr<T>::value_type >::value;
  };

  template <typename T>
  struct Value< Fad::Exp::Expr<T> > {
    typedef typename ValueType< Fad::Exp::Expr<T> >::type value_type;
    KOKKOS_INLINE_FUNCTION
    static const value_type& eval(const Fad::Exp::Expr<T>& x) {
      return x.val(); }
  };

  template <typename T>
  struct ScalarValue< Fad::Exp::Expr<T> > {
    typedef typename ValueType< Fad::Exp::Expr<T> >::type value_type;
    typedef typename ScalarType< Fad::Exp::Expr<T> >::type scalar_type;
    KOKKOS_INLINE_FUNCTION
    static const scalar_type& eval(const Fad::Exp::Expr<T>& x) {
      return ScalarValue<value_type>::eval(x.val()); }
  };

} // namespace Sacado

#endif // SACADO_FAD_EXP_EXPRESSIONTRAITS_HPP