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//
//                           Intrepid Package
//                 Copyright (2007) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// 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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// This library is distributed in the hope that it will be useful, but
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// Lesser General Public License for more details.
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// 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
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// Questions? Contact Pavel Bochev (pbboche@sandia.gov) or
//                    Denis Ridzal (dridzal@sandia.gov).
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#ifndef INTREPID_CUBATURE_GEN_SPARSE_HPP
#define INTREPID_CUBATURE_GEN_SPARSE_HPP

#include "Intrepid_ConfigDefs.hpp"
#include "Intrepid_Cubature.hpp"
#include "Intrepid_CubatureDirectLineGauss.hpp"
#include "Intrepid_CubatureSparseHelper.hpp"
#include "Teuchos_TestForException.hpp"

#define INTREPID_CUBATURE_GENSPARSE_GAUSS_MAX 17


namespace Intrepid{


template<class Scalar, int dimension_, class ArrayPoint=FieldContainer<Scalar>, class ArrayWeight = ArrayPoint>
class CubatureGenSparse : public Intrepid::Cubature<Scalar,ArrayPoint,ArrayWeight> {
  private:

  int numPoints_;

  const int degree_;

  SGNodes<Scalar, dimension_> grid;

  
  public:

  ~CubatureGenSparse() {}


  CubatureGenSparse(const int degree);

  virtual void getCubature(ArrayPoint  & cubPoints,
                           ArrayWeight & cubWeights) const;

  virtual int getNumPoints() const;

  virtual int getDimension() const;

  virtual void getAccuracy(std::vector<int> & accuracy) const;

}; // end class CubatureGenSparse

// helper functions
template<class Scalar>
inline Scalar Sum(Scalar* list, int first, int last)
{
  Scalar sum = 0;
  for(int i = first; i <= last; i++)
    sum += list[i];
  return sum;
}


} // end namespace Intrepid


// include templated definitions
#include <Intrepid_CubatureGenSparseDef.hpp>

#endif