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/*
 *   Copyright (c) 2007, Michael Lehn
 *
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *   1) Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *   2) Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in
 *      the documentation and/or other materials provided with the
 *      distribution.
 *   3) Neither the name of the FLENS development group nor the names of
 *      its contributors may be used to endorse or promote products derived
 *      from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef FLENS_SCALARTYPES_IMPL_SCALARCLOSURE_H
#define FLENS_SCALARTYPES_IMPL_SCALARCLOSURE_H 1

#include <flens/auxiliary/constref.h>
#include <flens/auxiliary/promotion.h>
#include <flens/auxiliary/elementtype.h>
#include <flens/scalartypes/scalar.h>

namespace flens {

template <typename Op, typename L, typename R>
class ScalarClosure
    : public Scalar<ScalarClosure<Op, L, R> >
{
    public:
        typedef typename ElementType<ScalarClosure>::Type  ElementType;

        ScalarClosure(typename ConstRef<L>::Type l,
                      typename ConstRef<R>::Type r);

        typename ConstRef<L>::Type
        left() const;

        typename ConstRef<R>::Type
        right() const;

        const ElementType
        value() const;

    private:
        typename ConstRef<L>::Type left_;
        typename ConstRef<R>::Type right_;
};

template <typename Op, typename L, typename R>
struct ElementType<ScalarClosure<Op, L, R> >
{
    typedef typename L::ElementType             LT;
    typedef typename R::ElementType             RT;
    typedef typename Promotion<LT, RT>::Type    Type;
};

} // namespace flens

#endif // FLENS_SCALARTYPES_IMPL_SCALARCLOSURE_H





































































































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