compat-c++14.h
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/* Copyright (C) 2019
*
* This file is part of the osdev components suite
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#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