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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>
// class packaged_task<R>
// future<R> get_future();
#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> p(A(5));
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> p(A(5));
boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
try
{
f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
BOOST_TEST(false);
}
catch (const boost::future_error& e)
{
BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::future_already_retrieved));
}
}
{
boost::packaged_task<double> p;
try
{
boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
BOOST_TEST(false);
}
catch (const boost::future_error& e)
{
BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::no_state));
}
}
return boost::report_errors();
}
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