Sacado_Fad_StaticStorage.hpp

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// $Id: Sacado_Fad_StaticStorage.hpp,v 1.6.2.2 2007/08/14 00:19:06 etphipp Exp $ 
// $Source: /space/CVS/Trilinos/packages/sacado/src/Sacado_Fad_StaticStorage.hpp,v $ 
// @HEADER
// ***********************************************************************
// 
//                           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
// License, or (at your option) any later version.
//  
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact David M. Gay (dmgay@sandia.gov) or Eric T. Phipps
// (etphipp@sandia.gov).
// 
// ***********************************************************************
// @HEADER

#ifndef SACADO_FAD_STATICSTORAGE_HPP
#define SACADO_FAD_STATICSTORAGE_HPP

#include "Sacado_ConfigDefs.h"
#include "Sacado_StaticArrayTraits.hpp"

namespace Sacado {

  namespace Fad {


    template <typename T, int Num> 
    class StaticStorage {

    public:

      StaticStorage(const T & x) : val_(x), sz_(0) {}


      StaticStorage(const int sz, const T & x) : val_(x), sz_(sz) { 
#ifdef SACADO_DEBUG
  if (sz > Num)
    throw "StaticStorage::StaticStorage() Error:  Supplied derivative dimension exceeds maximum length.";
#endif
  ss_array<T>::zero(dx_, sz_); 
      }

      StaticStorage(const StaticStorage& x) : 
  val_(x.val_), sz_(x.sz_) { ss_array<T>::copy(x.dx_, dx_, sz_); }

      ~StaticStorage() {}

      StaticStorage& operator=(const StaticStorage& x) {
  val_ = x.val_;
  sz_ = x.sz_;
  ss_array<T>::copy(x.dx_, dx_, sz_);
  return *this;
      }

      int size() const { return sz_;}

      void resize(int sz) { 
#ifdef SACADO_DEBUG
  if (sz > Num)
    throw "StaticStorage::resize() Error:  Supplied derivative dimension exceeds maximum length.";
#endif
  sz_ = sz; 
      }

      void zero() { ss_array<T>::zero(dx_, sz_); }

    public:

      T val_;

      T dx_[Num];

      int sz_;

    }; // class StaticStorage

  } // namespace Fad

} // namespace Sacado

#endif // SACADO_FAD_STATICSTORAGE_HPP

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