compat-c++14.h
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/* ****************************************************************************
* 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 code below 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 /* End check for c++ 14 */
#endif /* OSDEV_COMPONENTS_COMPATCXX14 */