STLExtras.h

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//===-- serialbox/core/STLExtras.h --------------------------------------------------*- C++ -*-===//
//
//                                    S E R I A L B O X
//
// This file is distributed under terms of BSD license.
// See LICENSE.txt for more information
//
//===------------------------------------------------------------------------------------------===//
//
//===------------------------------------------------------------------------------------------===//

#ifndef SERIALBOX_CORE_STLEXTRAS_H
#define SERIALBOX_CORE_STLEXTRAS_H

#include "serialbox/core/Compiler.h"
#include <cstddef>
#include <memory>
#include <type_traits>

//===------------------------------------------------------------------------------------------===//
//     Extra additions to <memory>
//===------------------------------------------------------------------------------------------===//

#if !defined(SERIALBOX_COMPILER_MSVC) && __cplusplus <= 201103L

namespace std {

// Implement make_unique according to N3656.

template <class T, class... Args>
typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type
make_unique(Args&&... args) {
  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}

template <class T>
typename std::enable_if<std::is_array<T>::value && std::extent<T>::value == 0,
                        std::unique_ptr<T>>::type
make_unique(std::size_t n) {
  return std::unique_ptr<T>(new typename std::remove_extent<T>::type[n]());
}

template <class T, class... Args>
typename std::enable_if<std::extent<T>::value != 0>::type make_unique(Args&&...) = delete;

} // namespace std

#endif

#endif