#pragma once
#if __cplusplus == 201103L
#include <cstddef>
#include <memory>
#include <type_traits>
#include <utility>
namespace std {
template <class T>
struct _Unique_if {
typedef unique_ptr<T> _Single_object;
};
template <class T>
struct _Unique_if<T[]> {
typedef unique_ptr<T[]> _Unknown_bound;
};
template <class T, size_t N>
struct _Unique_if<T[N]> {
typedef void _Known_bound;
};
template <class T, class... Args>
typename _Unique_if<T>::_Single_object make_unique(Args&&... args) {
return unique_ptr<T>(new T(std::forward<Args>(args)...));
}
template <class T>
typename _Unique_if<T>::_Unknown_bound make_unique(size_t n) {
typedef typename remove_extent<T>::type U;
return unique_ptr<T>(new U[n]());
}
template <class T, class... Args>
typename _Unique_if<T>::_Known_bound make_unique(Args&&...) = delete;
} #endif