1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // Copyright (C) 2011 Vicente J. Botet Escriba 11 // 12 // Distributed under the Boost Software License, Version 1.0. (See accompanying 13 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 14 15 // <boost/thread/future.hpp> 16 17 // template <class R> 18 // void 19 // swap(packaged_task<R>& x, packaged_task<R>& y); 20 21 #define BOOST_THREAD_VERSION 4 22 #if BOOST_THREAD_VERSION == 4 23 #define BOOST_THREAD_DETAIL_SIGNATURE double() 24 #else 25 #define BOOST_THREAD_DETAIL_SIGNATURE double 26 #endif 27 28 #include <boost/thread/future.hpp> 29 #include <boost/detail/lightweight_test.hpp> 30 31 class A 32 { 33 long data_; 34 35 public: A(long i)36 explicit A(long i) : data_(i) {} 37 operator ()() const38 long operator()() const {return data_;} operator ()(long i,long j) const39 long operator()(long i, long j) const {return data_ + i + j;} 40 }; 41 main()42int main() 43 { 44 { 45 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p0(A(5)); 46 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p; 47 p.swap(p0); 48 BOOST_TEST(!p0.valid()); 49 BOOST_TEST(p.valid()); 50 boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); 51 //p(3, 'a'); 52 p(); 53 BOOST_TEST(f.get() == 5.0); 54 } 55 { 56 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p0; 57 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p; 58 p.swap(p0); 59 BOOST_TEST(!p0.valid()); 60 BOOST_TEST(!p.valid()); 61 } 62 return boost::report_errors(); 63 64 } 65 66