array_traits.hpp

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/*
 * Copyright 2016-2018, Intel Corporation
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
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 *       notice, this list of conditions and the following disclaimer.
 *
 *     * 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.
 *
 *     * Neither the name of the copyright holder 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
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 */

#ifndef LIBPMEMOBJ_CPP_ARRAY_TRAITS_HPP
#define LIBPMEMOBJ_CPP_ARRAY_TRAITS_HPP

#include <cstddef>

namespace pmem
{

namespace detail
{

/*
 * Returns the number of array elements.
 */
template <typename T>
struct pp_array_elems {
    enum { elems = 1 };
};

/*
 * Returns the number of array elements.
 */
template <typename T, size_t N>
struct pp_array_elems<T[N]> {
    enum { elems = N };
};

/*
 * Returns the type of elements in an array.
 */
template <typename T>
struct pp_array_type;

/*
 * Returns the type of elements in an array.
 */
template <typename T>
struct pp_array_type<T[]> {
    typedef T type;
};

/*
 * Returns the type of elements in an array.
 */
template <typename T, size_t N>
struct pp_array_type<T[N]> {
    typedef T type;
};

} /* namespace detail */

} /* namespace pmem */

#endif /* LIBPMEMOBJ_CPP_ARRAY_TRAITS_HPP */