110 lines
4.0 KiB
C++
110 lines
4.0 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright David Abrahams, Vicente Botet, Ion Gaztanaga 2009.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/move for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#include <boost/move/detail/config_begin.hpp>
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//[construct_forward_example
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#include <boost/move/utility_core.hpp>
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#include <iostream>
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class copyable_only_tester
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{
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public:
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copyable_only_tester()
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{ std::cout << "copyable_only_tester()" << std::endl; }
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copyable_only_tester(const copyable_only_tester&)
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{ std::cout << "copyable_only_tester(const copyable_only_tester&)" << std::endl; }
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copyable_only_tester(int)
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{ std::cout << "copyable_only_tester(int)" << std::endl; }
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copyable_only_tester(int, double)
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{ std::cout << "copyable_only_tester(int, double)" << std::endl; }
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};
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class copyable_movable_tester
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{
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// move semantics
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BOOST_COPYABLE_AND_MOVABLE(copyable_movable_tester)
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public:
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copyable_movable_tester()
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{ std::cout << "copyable_movable_tester()" << std::endl; }
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copyable_movable_tester(int)
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{ std::cout << "copyable_movable_tester(int)" << std::endl; }
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copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester))
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{ std::cout << "copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester))" << std::endl; }
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copyable_movable_tester(const copyable_movable_tester &)
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{ std::cout << "copyable_movable_tester(const copyable_movable_tester &)" << std::endl; }
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copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester), BOOST_RV_REF(copyable_movable_tester))
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{ std::cout << "copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester), BOOST_RV_REF(copyable_movable_tester))" << std::endl; }
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copyable_movable_tester &operator=(BOOST_RV_REF(copyable_movable_tester))
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{ std::cout << "copyable_movable_tester & operator=(BOOST_RV_REF(copyable_movable_tester))" << std::endl;
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return *this; }
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copyable_movable_tester &operator=(BOOST_COPY_ASSIGN_REF(copyable_movable_tester))
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{ std::cout << "copyable_movable_tester & operator=(BOOST_COPY_ASSIGN_REF(copyable_movable_tester))" << std::endl;
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return *this; }
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};
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//1 argument
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template<class MaybeMovable, class MaybeRv>
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void function_construct(BOOST_FWD_REF(MaybeRv) x)
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{ MaybeMovable m(boost::forward<MaybeRv>(x)); }
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//2 argument
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template<class MaybeMovable, class MaybeRv, class MaybeRv2>
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void function_construct(BOOST_FWD_REF(MaybeRv) x, BOOST_FWD_REF(MaybeRv2) x2)
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{ MaybeMovable m(boost::forward<MaybeRv>(x), boost::forward<MaybeRv2>(x2)); }
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int main()
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{
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copyable_movable_tester m;
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//move constructor
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function_construct<copyable_movable_tester>(boost::move(m));
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//copy constructor
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function_construct<copyable_movable_tester>(copyable_movable_tester());
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//two rvalue constructor
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function_construct<copyable_movable_tester>(boost::move(m), boost::move(m));
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copyable_only_tester nm;
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//copy constructor (copyable_only_tester has no move ctor.)
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function_construct<copyable_only_tester>(boost::move(nm));
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//copy constructor
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function_construct<copyable_only_tester>(nm);
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//int constructor
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function_construct<copyable_only_tester>(int(0));
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//int, double constructor
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function_construct<copyable_only_tester>(int(0), double(0.0));
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//Output is:
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//copyable_movable_tester()
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//copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester))
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//copyable_movable_tester()
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//copyable_movable_tester(const copyable_movable_tester &)
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//copyable_movable_tester(BOOST_RV_REF(copyable_movable_tester), BOOST_RV_REF(copyable_movable_tester))
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//copyable_only_tester()
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//copyable_only_tester(const copyable_only_tester&)
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//copyable_only_tester(const copyable_only_tester&)
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//copyable_only_tester(int)
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//copyable_only_tester(int, double)
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return 0;
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}
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//]
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#include <boost/move/detail/config_end.hpp>
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