Files
wlan-cloud-lib-poco/Foundation/include/Poco/MakeUnique.h
2017-10-20 18:31:13 -05:00

70 lines
1.4 KiB
C++

//
// MakeUnique.h
//
// Library: Foundation
// Package: Core
// Module: MakeUnique
//
// Definition of the MakeUnique template class. This is essentially std::make_unique
// for pre-C++14 compilers.
//
// Code adapted for naming convention from https://isocpp.org/files/papers/N3656.txt
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_MakeUnique_INCLUDED
#define Foundation_MakeUnique_INCLUDED
#include "Poco/Foundation.h"
#include <cstddef>
#include <memory>
#include <type_traits>
#include <utility>
namespace Poco {
template<class T> struct UniqueIf
{
typedef std::unique_ptr<T> SingleObject;
};
template<class T> struct UniqueIf<T[]>
{
typedef std::unique_ptr<T[]> UnknownBound;
};
template<class T, size_t N> struct UniqueIf<T[N]>
{
typedef void KnownBound;
};
template<class T, class... Args>
typename UniqueIf<T>::SingleObject makeUnique(Args&&... args)
{
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
template<class T>
typename UniqueIf<T>::UnknownBound makeUnique(size_t n)
{
typedef typename std::remove_extent<T>::type U;
return std::unique_ptr<T>(new U[n]());
}
template<class T, class... Args>
typename UniqueIf<T>::KnownBound makeUnique(Args&&...) = delete;
} // namespace Poco
#endif // Foundation_MakeUnique_INCLUDED