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authorStefan Radomski <github@mintwerk.de>2017-06-27 11:11:13 (GMT)
committerGitHub <noreply@github.com>2017-06-27 11:11:13 (GMT)
commite24393f41834f116038faf6c6d5012575a67136a (patch)
treea1e83679e55781bc92849a07c5acda7b5c09908c /contrib/src/boost/move/make_unique.hpp
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Merge pull request #149 from tklab-tud/sradomski
remerge
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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2006-2014. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/move for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_MOVE_MAKE_UNIQUE_HPP_INCLUDED
+#define BOOST_MOVE_MAKE_UNIQUE_HPP_INCLUDED
+
+#ifndef BOOST_CONFIG_HPP
+# include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+# pragma once
+#endif
+
+#include <boost/move/detail/config_begin.hpp>
+#include <boost/move/detail/workaround.hpp>
+#include <boost/move/utility_core.hpp>
+#include <boost/move/unique_ptr.hpp>
+#include <cstddef> //for std::size_t
+#include <boost/move/detail/unique_ptr_meta_utils.hpp>
+#ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES
+# include <boost/move/detail/fwd_macros.hpp>
+#endif
+
+//!\file
+//! Defines "make_unique" functions, which are factories to create instances
+//! of unique_ptr depending on the passed arguments.
+//!
+//! This header can be a bit heavyweight in C++03 compilers due to the use of the
+//! preprocessor library, that's why it's a a separate header from <tt>unique_ptr.hpp</tt>
+
+#if !defined(BOOST_MOVE_DOXYGEN_INVOKED)
+
+namespace std { //no namespace versioning in clang+libc++
+
+struct nothrow_t;
+
+} //namespace std {
+
+namespace boost{
+namespace move_upmu {
+
+//Compile time switch between
+//single element, unknown bound array
+//and known bound array
+template<class T>
+struct unique_ptr_if
+{
+ typedef ::boost::movelib::unique_ptr<T> t_is_not_array;
+};
+
+template<class T>
+struct unique_ptr_if<T[]>
+{
+ typedef ::boost::movelib::unique_ptr<T[]> t_is_array_of_unknown_bound;
+};
+
+template<class T, std::size_t N>
+struct unique_ptr_if<T[N]>
+{
+ typedef void t_is_array_of_known_bound;
+};
+
+template <int Dummy = 0>
+struct nothrow_holder
+{
+ static std::nothrow_t *pnothrow;
+};
+
+template <int Dummy>
+std::nothrow_t *nothrow_holder<Dummy>::pnothrow;
+
+} //namespace move_upmu {
+} //namespace boost{
+
+#endif //!defined(BOOST_MOVE_DOXYGEN_INVOKED)
+
+namespace boost{
+namespace movelib {
+
+#if defined(BOOST_MOVE_DOXYGEN_INVOKED) || !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is not an array.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new T(std::forward<Args>(args)...))</tt>.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array)
+ make_unique(BOOST_FWD_REF(Args)... args)
+{ return unique_ptr<T>(new T(::boost::forward<Args>(args)...)); }
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is not an array.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new T(std::nothrow)(std::forward<Args>(args)...))</tt>.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array)
+ make_unique_nothrow(BOOST_FWD_REF(Args)... args)
+{ return unique_ptr<T>(new (*boost::move_upmu::nothrow_holder<>::pnothrow)T(::boost::forward<Args>(args)...)); }
+
+#else
+ #define BOOST_MOVE_MAKE_UNIQUE_CODE(N)\
+ template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N>\
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array\
+ make_unique( BOOST_MOVE_UREF##N)\
+ { return unique_ptr<T>( new T( BOOST_MOVE_FWD##N ) ); }\
+ \
+ template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N>\
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array\
+ make_unique_nothrow( BOOST_MOVE_UREF##N)\
+ { return unique_ptr<T>( new (*boost::move_upmu::nothrow_holder<>::pnothrow)T ( BOOST_MOVE_FWD##N ) ); }\
+ //
+ BOOST_MOVE_ITERATE_0TO9(BOOST_MOVE_MAKE_UNIQUE_CODE)
+ #undef BOOST_MOVE_MAKE_UNIQUE_CODE
+
+#endif
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is not an array.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new T)</tt> (default initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array)
+ make_unique_definit()
+{
+ return unique_ptr<T>(new T);
+}
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is not an array.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new T(std::nothrow)</tt> (default initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_not_array)
+ make_unique_nothrow_definit()
+{
+ return unique_ptr<T>(new (*boost::move_upmu::nothrow_holder<>::pnothrow)T);
+}
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is an array of
+//! unknown bound.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new remove_extent_t<T>[n]())</tt> (value initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_unknown_bound)
+ make_unique(std::size_t n)
+{
+ typedef typename ::boost::move_upmu::remove_extent<T>::type U;
+ return unique_ptr<T>(new U[n]());
+}
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is an array of
+//! unknown bound.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new (std::nothrow)remove_extent_t<T>[n]())</tt> (value initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_unknown_bound)
+ make_unique_nothrow(std::size_t n)
+{
+ typedef typename ::boost::move_upmu::remove_extent<T>::type U;
+ return unique_ptr<T>(new (*boost::move_upmu::nothrow_holder<>::pnothrow)U[n]());
+}
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is an array of
+//! unknown bound.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new remove_extent_t<T>[n])</tt> (default initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_unknown_bound)
+ make_unique_definit(std::size_t n)
+{
+ typedef typename ::boost::move_upmu::remove_extent<T>::type U;
+ return unique_ptr<T>(new U[n]);
+}
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is an array of
+//! unknown bound.
+//!
+//! <b>Returns</b>: <tt>unique_ptr<T>(new (std::nothrow)remove_extent_t<T>[n])</tt> (default initialization)
+template<class T>
+inline BOOST_MOVE_DOC1ST(unique_ptr<T>,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_unknown_bound)
+ make_unique_nothrow_definit(std::size_t n)
+{
+ typedef typename ::boost::move_upmu::remove_extent<T>::type U;
+ return unique_ptr<T>(new (*boost::move_upmu::nothrow_holder<>::pnothrow) U[n]);
+}
+
+#if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is
+//! an array of known bound.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unspecified,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_known_bound)
+ make_unique(BOOST_FWD_REF(Args) ...) = delete;
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is
+//! an array of known bound.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unspecified,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_known_bound)
+ make_unique_definit(BOOST_FWD_REF(Args) ...) = delete;
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is
+//! an array of known bound.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unspecified,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_known_bound)
+ make_unique_nothrow(BOOST_FWD_REF(Args) ...) = delete;
+
+//! <b>Remarks</b>: This function shall not participate in overload resolution unless T is
+//! an array of known bound.
+template<class T, class... Args>
+inline BOOST_MOVE_DOC1ST(unspecified,
+ typename ::boost::move_upmu::unique_ptr_if<T>::t_is_array_of_known_bound)
+ make_unique_nothrow_definit(BOOST_FWD_REF(Args) ...) = delete;
+
+#endif
+
+} //namespace movelib {
+
+} //namespace boost{
+
+#include <boost/move/detail/config_end.hpp>
+
+#endif //#ifndef BOOST_MOVE_MAKE_UNIQUE_HPP_INCLUDED