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/*
Copyright 2012-2015 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_SMART_PTR_MAKE_UNIQUE_HPP
#define BOOST_SMART_PTR_MAKE_UNIQUE_HPP
#include <boost/config.hpp>
#include <memory>
#include <utility>
namespace boost {
namespace detail {
template<class T>
struct up_if_object {
typedef std::unique_ptr<T> type;
};
template<class T>
struct up_if_object<T[]> { };
template<class T, std::size_t N>
struct up_if_object<T[N]> { };
template<class T>
struct up_if_array { };
template<class T>
struct up_if_array<T[]> {
typedef std::unique_ptr<T[]> type;
};
template<class T>
struct up_remove_reference {
typedef T type;
};
template<class T>
struct up_remove_reference<T&> {
typedef T type;
};
template<class T>
struct up_remove_reference<T&&> {
typedef T type;
};
template<class T>
struct up_element { };
template<class T>
struct up_element<T[]> {
typedef T type;
};
} /* detail */
template<class T>
inline typename detail::up_if_object<T>::type
make_unique()
{
return std::unique_ptr<T>(new T());
}
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
template<class T, class... Args>
inline typename detail::up_if_object<T>::type
make_unique(Args&&... args)
{
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
#endif
template<class T>
inline typename detail::up_if_object<T>::type
make_unique(typename detail::up_remove_reference<T>::type&& value)
{
return std::unique_ptr<T>(new T(std::move(value)));
}
template<class T>
inline typename detail::up_if_object<T>::type
make_unique_noinit()
{
return std::unique_ptr<T>(new T);
}
template<class T>
inline typename detail::up_if_array<T>::type
make_unique(std::size_t size)
{
return std::unique_ptr<T>(new typename
detail::up_element<T>::type[size]());
}
template<class T>
inline typename detail::up_if_array<T>::type
make_unique_noinit(std::size_t size)
{
return std::unique_ptr<T>(new typename
detail::up_element<T>::type[size]);
}
} /* boost */
#endif
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