82 lines
1.7 KiB
C++
82 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Copyright (C) 2011 Vicente J. Botet Escriba
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// <boost/thread/future.hpp>
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// class packaged_task<R>
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// void operator()();
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#define BOOST_THREAD_VERSION 4
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#if BOOST_THREAD_VERSION == 4
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#define BOOST_THREAD_DETAIL_SIGNATURE double()
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#else
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#define BOOST_THREAD_DETAIL_SIGNATURE double
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#endif
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#include <boost/thread/future.hpp>
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#include <boost/detail/lightweight_test.hpp>
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class A
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{
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long data_;
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public:
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explicit A(long i) :
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data_(i)
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{
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}
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long operator()() const
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{
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return data_;
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}
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long operator()(long i, long j) const
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{
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if (j == 'z') throw A(6);
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return data_ + i + j;
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}
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};
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int main()
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{
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{
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boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p(A(5));
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boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
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//p(3, 'a');
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p();
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BOOST_TEST(f.get() == 5.0);
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p.reset();
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//p(4, 'a');
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p();
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f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
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BOOST_TEST(f.get() == 5.0);
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}
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{
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boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p;
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try
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{
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p.reset();
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BOOST_TEST(false);
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}
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catch (const boost::future_error& e)
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{
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BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::no_state));
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}
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}
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return boost::report_errors();
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}
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