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 // class packaged_task<R> 17 18 // void operator()(); 19 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) : 37 data_(i) 38 { 39 } 40 operator ()() const41 long operator()() const 42 { 43 return data_; 44 } operator ()(long i,long j) const45 long operator()(long i, long j) const 46 { 47 if (j == 'z') throw A(6); 48 return data_ + i + j; 49 } 50 }; 51 main()52int main() 53 { 54 { 55 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p(A(5)); 56 boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); 57 //p(3, 'a'); 58 p(); 59 BOOST_TEST(f.get() == 5.0); 60 p.reset(); 61 //p(4, 'a'); 62 p(); 63 f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); 64 BOOST_TEST(f.get() == 5.0); 65 } 66 { 67 boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p; 68 try 69 { 70 p.reset(); 71 BOOST_TEST(false); 72 } 73 catch (const boost::future_error& e) 74 { 75 BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::no_state)); 76 } 77 } 78 79 return boost::report_errors(); 80 } 81 82