CanGetRawPtr.hpp

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///////////////////////////////////////////////////////////////////////////////
//
// File: CanGetRawPtr.hpp
//
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// The MIT License
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// Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
// Department of Aeronautics, Imperial College London (UK), and Scientific
// Computing and Imaging Institute, University of Utah (USA).
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// License for the specific language governing rights and limitations under
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// Description: 
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///////////////////////////////////////////////////////////////////////////////

#ifndef NEKTAR_LIB_UTILITIES_LINEAR_ALGEBRA_CAN_GET_RAW_PTR_HPP
#define NEKTAR_LIB_UTILITIES_LINEAR_ALGEBRA_CAN_GET_RAW_PTR_HPP

#include <boost/utility/enable_if.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/and.hpp>
#include <boost/type_traits.hpp>
#include <LibUtilities/LinearAlgebra/NekMatrixFwd.hpp>

namespace Nektar
{
    template<typename MatrixType>
    struct CanGetRawPtr : public boost::false_type {};
    
    template<typename T>
    struct CanGetRawPtr<NekMatrix<T, StandardMatrixTag> > : public boost::true_type {};
    
    template<typename T, typename R>
    struct CanGetRawPtr<NekMatrix<NekMatrix<T, R>, ScaledMatrixTag> > : public boost::true_type {};
    
    template<typename T, typename M>
    struct CanGetRawPtr<NekMatrix<T, M> > :
        boost::mpl::if_
        <
            boost::mpl::and_
            <
                boost::mpl::not_<boost::is_same<BlockMatrixTag, M> >,
                CanGetRawPtr<T>
            >, boost::true_type, boost::false_type
        >::type {};
}

#endif //NEKTAR_LIB_UTILITIES_LINEAR_ALGEBRA_CAN_GET_RAW_PTR_HPP