vectormemoryhelper.h

Go to the documentation of this file.

/*  This file is part of the Vc library.

    Copyright (C) 2009 Matthias Kretz <kretz@kde.org>

    Vc 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 3 of
    the License, or (at your option) any later version.

    Vc is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with Vc.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef VECTORMEMORYHELPER_H
#define VECTORMEMORYHELPER_H

#include <Vc/vector.h>

template<typename Vec>
class VectorMemoryHelper
{
    char *const mem;
    char *const aligned;
    public:
        VectorMemoryHelper(int count)
            : mem(new char[count * sizeof(Vec) + Vc::VectorAlignment]),
            aligned(mem + (Vc::VectorAlignment - (reinterpret_cast<unsigned long>( mem ) & ( Vc::VectorAlignment - 1 ))))
        {
        }
        ~VectorMemoryHelper() { delete[] mem; }

        operator typename Vec::EntryType *() { return reinterpret_cast<typename Vec::EntryType *>(aligned); }
};

#endif // VECTORMEMORYHELPER_H