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106 lines
2.1 KiB
C++
106 lines
2.1 KiB
C++
/*
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(c) 2014-2015 Glen Joseph Fernandes
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<glenjofe -at- gmail.com>
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Distributed under the Boost Software
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License, Version 1.0.
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http://boost.org/LICENSE_1_0.txt
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*/
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#ifndef BOOST_SMART_PTR_MAKE_UNIQUE_HPP
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#define BOOST_SMART_PTR_MAKE_UNIQUE_HPP
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#include <boost/config.hpp>
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#include <memory>
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#include <utility>
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namespace boost {
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namespace detail {
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template<class T>
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struct up_if_object {
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typedef std::unique_ptr<T> type;
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};
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template<class T>
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struct up_if_object<T[]> { };
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template<class T, std::size_t N>
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struct up_if_object<T[N]> { };
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template<class T>
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struct up_if_array { };
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template<class T>
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struct up_if_array<T[]> {
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typedef std::unique_ptr<T[]> type;
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};
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template<class T>
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struct up_remove_reference {
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typedef T type;
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};
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template<class T>
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struct up_remove_reference<T&> {
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typedef T type;
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};
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template<class T>
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struct up_remove_reference<T&&> {
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typedef T type;
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};
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template<class T>
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struct up_element { };
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template<class T>
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struct up_element<T[]> {
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typedef T type;
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};
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} /* detail */
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template<class T>
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inline typename detail::up_if_object<T>::type make_unique()
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{
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return std::unique_ptr<T>(new T());
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}
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#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
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template<class T, class... Args>
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inline typename detail::up_if_object<T>::type
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make_unique(Args&&... args)
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{
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return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
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}
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#endif
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template<class T>
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inline typename detail::up_if_object<T>::type
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make_unique(typename detail::up_remove_reference<T>::type&& value)
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{
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return std::unique_ptr<T>(new T(std::move(value)));
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}
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template<class T>
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inline typename detail::up_if_object<T>::type make_unique_noinit()
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{
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return std::unique_ptr<T>(new T);
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}
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template<class T>
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inline typename detail::up_if_array<T>::type make_unique(std::size_t n)
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{
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return std::unique_ptr<T>(new
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typename detail::up_element<T>::type[n]());
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}
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template<class T>
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inline typename detail::up_if_array<T>::type
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make_unique_noinit(std::size_t n)
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{
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return std::unique_ptr<T>(new
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typename detail::up_element<T>::type[n]);
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}
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} /* boost */
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#endif
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