/* ****************************************************************************
 * Copyright 2019 Open Systems Development BV                                 *
 *                                                                            *
 * Permission is hereby granted, free of charge, to any person obtaining a    *
 * copy of this software and associated documentation files (the "Software"), *
 * to deal in the Software without restriction, including without limitation  *
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,   *
 * and/or sell copies of the Software, and to permit persons to whom the      *
 * Software is furnished to do so, subject to the following conditions:       *
 *                                                                            *
 * The above copyright notice and this permission notice shall be included in *
 * all copies or substantial portions of the Software.                        *
 *                                                                            *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   *
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    *
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    *
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        *
 * DEALINGS IN THE SOFTWARE.                                                  *
 * ***************************************************************************/
#ifndef OSDEV_COMPONENTS_COMPATCXX14
#define OSDEV_COMPONENTS_COMPATCXX14

#include <memory>

// The below code must be skipped if we use a C++14 or newer compiler
#if __cplusplus == 201103L

namespace std {
/// Copied from libstdc++ 4.9.2 bits/unique_ptr.h

template <typename _Tp>
struct _MakeUniq
{
    typedef unique_ptr<_Tp> __single_object;
};

template <typename _Tp>
struct _MakeUniq<_Tp[]>
{
    typedef unique_ptr<_Tp[]> __array;
};

template <typename _Tp, size_t _Bound>
struct _MakeUniq<_Tp[_Bound]>
{
    struct __invalid_type
    {
    };
};

/// std::make_unique for single objects
template <typename _Tp, typename... _Args>
inline typename _MakeUniq<_Tp>::__single_object make_unique(_Args&&... __args)
{
    return unique_ptr<_Tp>(new _Tp(std::forward<_Args>(__args)...));
}

/// std::make_unique for arrays of unknown bound
template <typename _Tp>
inline typename _MakeUniq<_Tp>::__array make_unique(size_t __num)
{
    return unique_ptr<_Tp>(new typename remove_extent<_Tp>::type[__num]());
}

/// Disable std::make_unique for arrays of known bound
template <typename _Tp, typename... _Args>
inline typename _MakeUniq<_Tp>::__invalid_type make_unique(_Args&&...) = delete;

} // End namespace std

#endif // Check for C++14

#endif