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Editing: xsimd_alignment.hpp

/***************************************************************************
 * Copyright (c) Johan Mabille, Sylvain Corlay, Wolf Vollprecht and         *
 * Martin Renou                                                             *
 * Copyright (c) QuantStack                                                 *
 * Copyright (c) Serge Guelton                                              *
 *                                                                          *
 * Distributed under the terms of the BSD 3-Clause License.                 *
 *                                                                          *
 * The full license is in the file LICENSE, distributed with this software. *
 ****************************************************************************/

#ifndef XSIMD_ALIGNMENT_HPP
#define XSIMD_ALIGNMENT_HPP

#include "../types/xsimd_utils.hpp"
#include "xsimd_aligned_allocator.hpp"

namespace xsimd
{
    /**
     * @struct aligned_mode
     * @brief tag for load and store of aligned memory.
     */
    struct aligned_mode
    {
    };

/**
     * @struct unaligned_mode
     * @brief tag for load and store of unaligned memory.
     */
    struct unaligned_mode
    {
    };

/***********************
     * Allocator alignment *
     ***********************/

template <class A>
    struct allocator_alignment
    {
        using type = unaligned_mode;
    };

template <class T>
    struct allocator_alignment<aligned_allocator<T>>
    {
        using type = aligned_mode;
    };

template <class A>
    using allocator_alignment_t = typename allocator_alignment<A>::type;

/***********************
     * container alignment *
     ***********************/

template <class C, class = void>
    struct container_alignment
    {
        using type = unaligned_mode;
    };

template <class C>
    struct container_alignment<C, detail::void_t<typename C::allocator_type>>
    {
        using type = allocator_alignment_t<typename C::allocator_type>;
    };

template <class C>
    using container_alignment_t = typename container_alignment<C>::type;

}

#endif

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