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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 | // class packaged_task<R> | |
18 | ||
19 | // future<R> get_future(); | |
20 | ||
21 | ||
22 | #define BOOST_THREAD_VERSION 4 | |
23 | #if BOOST_THREAD_VERSION == 4 | |
24 | #define BOOST_THREAD_DETAIL_SIGNATURE double() | |
25 | #else | |
26 | #define BOOST_THREAD_DETAIL_SIGNATURE double | |
27 | #endif | |
28 | ||
29 | #include <boost/thread/future.hpp> | |
30 | #include <boost/detail/lightweight_test.hpp> | |
31 | ||
32 | class A | |
33 | { | |
34 | long data_; | |
35 | ||
36 | public: | |
37 | explicit A(long i) : data_(i) {} | |
38 | ||
39 | long operator()() const {return data_;} | |
40 | long operator()(long i, long j) const {return data_ + i + j;} | |
41 | }; | |
42 | ||
43 | int main() | |
44 | { | |
45 | { | |
46 | boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p(A(5)); | |
47 | boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); | |
48 | //p(3, 'a'); | |
49 | p(); | |
50 | BOOST_TEST(f.get() == 5.0); | |
51 | } | |
52 | { | |
53 | boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p(A(5)); | |
54 | boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); | |
55 | try | |
56 | { | |
57 | f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); | |
58 | BOOST_TEST(false); | |
59 | } | |
60 | catch (const boost::future_error& e) | |
61 | { | |
62 | BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::future_already_retrieved)); | |
63 | } | |
64 | } | |
65 | { | |
66 | boost::packaged_task<BOOST_THREAD_DETAIL_SIGNATURE> p; | |
67 | try | |
68 | { | |
69 | boost::future<double> f = BOOST_THREAD_MAKE_RV_REF(p.get_future()); | |
70 | BOOST_TEST(false); | |
71 | } | |
72 | catch (const boost::future_error& e) | |
73 | { | |
74 | BOOST_TEST(e.code() == boost::system::make_error_code(boost::future_errc::no_state)); | |
75 | } | |
76 | } | |
77 | ||
78 | return boost::report_errors(); | |
79 | } | |
80 |