Sacado_ScalarFlopCounterTraits.hpp

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// $Source$ 
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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
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// (etphipp@sandia.gov).
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//
// The forward-mode AD classes in Sacado are a derivative work of the
// expression template classes in the Fad package by Nicolas Di Cesare.  
// The following banner is included in the original Fad source code:
//
// ************ DO NOT REMOVE THIS BANNER ****************
//
//  Nicolas Di Cesare <Nicolas.Dicesare@ann.jussieu.fr>
//  http://www.ann.jussieu.fr/~dicesare
//
//            CEMRACS 98 : C++ courses, 
//         templates : new C++ techniques 
//            for scientific computing 
// 
//********************************************************
//
//  NumericalTraits class to illustrate TRAITS
//
//********************************************************
// @HEADER

#ifndef SACADO_SCALARFLOPCOUNTERTRAITS_HPP
#define SACADO_SCALARFLOPCOUNTERTRAITS_HPP

#include "Sacado_Traits.hpp"

// Forward declarations
namespace Sacado {
  namespace FlopCounterPack {
    template <typename T> class ScalarFlopCounter;
  }
}

namespace Sacado {

  template <typename ScalarT>
  struct Promote< FlopCounterPack::ScalarFlopCounter<ScalarT>, 
      FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    typedef FlopCounterPack::ScalarFlopCounter<ScalarT> type;
  };

  template <typename ScalarT, typename R>
  struct Promote< FlopCounterPack::ScalarFlopCounter<ScalarT>, R > {
    typedef typename ValueType< FlopCounterPack::ScalarFlopCounter<ScalarT> >::type value_type_l;
    typedef typename ValueType<R>::type value_type_r;
    typedef typename Promote<value_type_l,value_type_r>::type value_type;

    typedef FlopCounterPack::ScalarFlopCounter<value_type> type;
  };

  template <typename L, typename ScalarT>
  struct Promote< L, FlopCounterPack::ScalarFlopCounter<ScalarT> > {
  public:

    typedef typename ValueType<L>::type value_type_l;
    typedef typename ValueType< FlopCounterPack::ScalarFlopCounter<ScalarT> >::type value_type_r;
    typedef typename Promote<value_type_l,value_type_r>::type value_type;

    typedef FlopCounterPack::ScalarFlopCounter<value_type> type;
  };

  template <typename ScalarT>
  struct ScalarType< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    typedef typename ScalarType<ScalarT>::type type;
  };

  template <typename ScalarT>
  struct ValueType< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    typedef ScalarT type;
  };

  template <typename ScalarT>
  struct IsADType< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    static const bool value = true;
  };

  template <typename ScalarT>
  struct IsScalarType< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    static const bool value = false;
  };

  template <typename ScalarT>
  struct Value< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    typedef typename ValueType< FlopCounterPack::ScalarFlopCounter<ScalarT> >::type value_type;
    static const value_type& eval(const FlopCounterPack::ScalarFlopCounter<ScalarT>& x) { 
      return x.val(); }
  };

  template <typename ScalarT>
  struct ScalarValue< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    typedef typename ValueType< FlopCounterPack::ScalarFlopCounter<ScalarT> >::type value_type;
    typedef typename ScalarType< FlopCounterPack::ScalarFlopCounter<ScalarT> >::type scalar_type;
    static const scalar_type& eval(const FlopCounterPack::ScalarFlopCounter<ScalarT>& x) { 
      return ScalarValue<value_type>::eval(x.val()); }
  };

  template <typename ScalarT>
  struct StringName< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    static std::string eval() { 
      return std::string("Sacado::FlopCounterPack::ScalarFlopCounter< ") + 
  StringName<ScalarT>::eval() + " >"; }
  };

  // Need specialization for IsEqual

  template <typename ScalarT>
  struct IsStaticallySized< FlopCounterPack::ScalarFlopCounter<ScalarT> > {
    static const bool value = true;
  };

} // namespace Sacado

#endif // SACADO_SCALARFLOPCOUNTERTRAITS_HPP