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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2009.
// 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.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
int main()
{
return 0;
}
#else
//[how_works_example
#include <boost/move/core.hpp>
#include <iostream>
class sink_tester
{
public: //conversions provided by BOOST_COPYABLE_AND_MOVABLE
operator ::boost::rv<sink_tester>&()
{ return *static_cast< ::boost::rv<sink_tester>* >(this); }
operator const ::boost::rv<sink_tester>&() const
{ return *static_cast<const ::boost::rv<sink_tester>* >(this); }
};
//Functions returning different r/lvalue types
sink_tester rvalue() { return sink_tester(); }
const sink_tester const_rvalue() { return sink_tester(); }
sink_tester & lvalue() { static sink_tester lv; return lv; }
const sink_tester & const_lvalue() { static const sink_tester clv = sink_tester(); return clv; }
//BOOST_RV_REF overload
void sink(::boost::rv<sink_tester> &) { std::cout << "non-const rvalue catched" << std::endl; }
//BOOST_COPY_ASSIGN_REF overload
void sink(const ::boost::rv<sink_tester> &){ std::cout << "const (r-l)value catched" << std::endl; }
//Overload provided by BOOST_COPYABLE_AND_MOVABLE
void sink(sink_tester &) { std::cout << "non-const lvalue catched" << std::endl; }
int main()
{
sink(const_rvalue()); //"const (r-l)value catched"
sink(const_lvalue()); //"const (r-l)value catched"
sink(lvalue()); //"non-const lvalue catched"
sink(rvalue()); //"non-const rvalue catched"
return 0;
}
//]
#endif
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