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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Copyright (C) 2011 Vicente J. Botet Escriba
//
// 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)
// <boost/thread/future.hpp>
// template <class R>
// void
// swap(packaged_task<R>& x, packaged_task<R>& y);
#define BOOST_THREAD_VERSION 3
#include <boost/thread/future.hpp>
#include <boost/detail/lightweight_test.hpp>
class A
{
long data_;
public:
explicit A(long i) : data_(i) {}
long operator()() const {return data_;}
long operator()(long i, long j) const {return data_ + i + j;}
};
int main()
{
{
boost::packaged_task<double> p0(A(5));
boost::packaged_task<double> p;
p.swap(p0);
BOOST_TEST(!p0.valid());
BOOST_TEST(p.valid());
boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
//p(3, 'a');
p();
BOOST_TEST(f.get() == 5.0);
}
{
boost::packaged_task<double> p0;
boost::packaged_task<double> p;
p.swap(p0);
BOOST_TEST(!p0.valid());
BOOST_TEST(!p.valid());
}
}
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