packedstorage.h (flens/storage/packedstorage/packedstorage.h)

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/*

 *   Copyright (c) 2012, Michael Lehn, Klaus Pototzky

 *

 *   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_PACKEDSTORAGE_PACKEDSTORAGE_H

#define FLENS_STORAGE_PACKEDSTORAGE_PACKEDSTORAGE_H

#include <flens/auxiliary/auxiliary.h>

#include <flens/storage/indexoptions.h>

#include <flens/typedefs.h>

namespace flens {

template <typename T, typename I, typename A>

    class Array;

template <typename T, typename I, typename A>

    class ArrayView;

template <typename T, typename I, typename A>

    class ConstArrayView;

template <typename T, StorageOrder Order, typename I, typename A>

    class PackedStorageView;

template <typename T, StorageOrder Order, typename I, typename A>

    class ConstPackedStorageView;

template <typename T,

          StorageOrder Order = ColMajor,

          typename I = IndexOptions<>,

          typename A = std::allocator<T> >

class PackedStorage

{

    public:

        typedef T                        ElementType;

        typedef typename I::IndexType    IndexType;

        typedef A                        Allocator;

        static const StorageOrder        order = Order;

        static const IndexType           defaultIndexBase = I::defaultIndexBase;

        typedef ConstPackedStorageView<T, Order, I, A>  ConstView;

        typedef PackedStorageView<T, Order, I, A>       View;

        typedef PackedStorage                           NoView;

        typedef flens::ConstArrayView<T, I, A>          ConstArrayView;

        typedef flens::ArrayView<T, I, A>               ArrayView;

        typedef flens::Array<T, I, A>                   Array;

        PackedStorage(IndexType dim,

                      IndexType indexBase = I::defaultIndexBase,

                      const ElementType &value = ElementType(),

                      const Allocator &allocator = Allocator());

        PackedStorage(const PackedStorage &rhs);

        template <typename RHS>

            PackedStorage(const RHS &rhs);

        ~PackedStorage();

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

        const ElementType &

        operator()(StorageUpLo  upLo, IndexType row, IndexType col) const;

        ElementType &

        operator()(StorageUpLo  upLo, IndexType row, IndexType col);

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

        IndexType

        indexBase() const;

        IndexType

        numNonZeros() const;

        IndexType

        dim() const;

        const ElementType *

        data() const;

        ElementType *

        data();

        const Allocator &

        allocator() const;

        bool

        resize(IndexType dim,

               IndexType indexBase = I::defaultIndexBase,

               const ElementType &value = ElementType());

        bool

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

        void

        changeIndexBase(IndexType indexBase);

    private:

        void

        raw_allocate_();

        void

        allocate_(const ElementType &value = ElementType());

        void

        release_();

        ElementType  *data_;

        Allocator    allocator_;

        IndexType    dim_;

        IndexType    indexBase_;

};

} // namespace flens

#endif // FLENS_STORAGE_PACKEDSTORAGE_PACKEDSTORAGE_H