tinyarrayview.h (flens/storage/tinyarray/tinyarrayview.h)

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/*
*   Copyright (c) 2012, 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_STORAGE_TINYARRAY_TINYARRAYVIEW_H
#define FLENS_STORAGE_TINYARRAY_TINYARRAYVIEW_H 1

namespace flens {

template <typename T, int n, int inc, int indexBase=1>
class TinyArrayView
{
    public:
        typedef T    ElementType;
        typedef int  IndexType;

        static const int length = n;
        static const int stride = inc;
        static const int firstIndex = indexBase;
        static const int lastIndex = firstIndex+length-1;

        TinyArrayView(ElementType *data);

        ~TinyArrayView();

        //-- operators ---------------------------------------------------------

        const ElementType &
        operator()(IndexType index) const;

        ElementType &
        operator()(IndexType index);

        //-- methods -----------------------------------------------------------

        const ElementType *
        data() const;

        ElementType *
        data();

        void
        fill(const ElementType &value = ElementType(0));

    private:
        ElementType *_data;
};

} // namespace flens

#endif // FLENS_STORAGE_TINYARRAY_TINYARRAYVIEW_H