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99dee823 | 1 | // Copyright (C) 2019-2021 Free Software Foundation, Inc. |
bb1b7f08 JW |
2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-do run } | |
19 | // { dg-options "-pthread" } | |
20 | // { dg-require-effective-target c++11 } | |
21 | // { dg-require-effective-target pthread } | |
22 | // { dg-require-gthreads "" } | |
23 | ||
24 | #include <future> | |
25 | #include <testsuite_rvalref.h> | |
26 | ||
27 | struct F : __gnu_test::copycounter | |
28 | { | |
29 | F() = default; | |
30 | ||
31 | F(const F&) = default; | |
32 | ||
33 | // Move constructor copies base class, to use counter: | |
34 | F(F&& f) : copycounter(f) { f.valid = false; } | |
35 | ||
36 | void run() { VERIFY(this->valid); } | |
37 | }; | |
38 | ||
39 | void | |
40 | test01() | |
41 | { | |
42 | std::future<void> fut; | |
43 | ||
44 | F::copycount = 0; | |
45 | fut = std::async(&F::run, F{}); | |
46 | VERIFY( F::copycount == 1 ); | |
47 | fut.get(); | |
48 | VERIFY( F::copycount == 1 ); | |
49 | ||
50 | F::copycount = 0; | |
51 | fut = std::async(std::launch::async, &F::run, F{}); | |
52 | VERIFY( F::copycount == 1 ); | |
53 | fut.get(); | |
54 | VERIFY( F::copycount == 1 ); | |
55 | ||
56 | F::copycount = 0; | |
57 | fut = std::async(std::launch::deferred, &F::run, F{}); | |
58 | VERIFY( F::copycount == 1 ); | |
59 | fut.get(); | |
60 | VERIFY( F::copycount == 1 ); | |
61 | } | |
62 | ||
63 | void | |
64 | test02() | |
65 | { | |
66 | std::future<void> fut; | |
67 | const F f; | |
68 | ||
69 | F::copycount = 0; | |
70 | fut = std::async(&F::run, f); | |
71 | VERIFY( F::copycount == 1 ); | |
72 | fut.get(); | |
73 | VERIFY( F::copycount == 1 ); | |
74 | ||
75 | F::copycount = 0; | |
76 | fut = std::async(std::launch::async, &F::run, f); | |
77 | VERIFY( F::copycount == 1 ); | |
78 | fut.get(); | |
79 | VERIFY( F::copycount == 1 ); | |
80 | ||
81 | F::copycount = 0; | |
82 | fut = std::async(std::launch::deferred, &F::run, f); | |
83 | VERIFY( F::copycount == 1 ); | |
84 | fut.get(); | |
85 | VERIFY( F::copycount == 1 ); | |
86 | } | |
87 | ||
88 | void | |
89 | test03() | |
90 | { | |
91 | std::future<void> fut; | |
92 | F f; | |
93 | ||
94 | F::copycount = 0; | |
95 | fut = std::async(&F::run, std::ref(f)); | |
96 | VERIFY( F::copycount == 0 ); | |
97 | fut.get(); | |
98 | VERIFY( F::copycount == 0 ); | |
99 | ||
100 | F::copycount = 0; | |
101 | fut = std::async(std::launch::async, &F::run, std::ref(f)); | |
102 | VERIFY( F::copycount == 0 ); | |
103 | fut.get(); | |
104 | VERIFY( F::copycount == 0 ); | |
105 | ||
106 | F::copycount = 0; | |
107 | fut = std::async(std::launch::deferred, &F::run, std::ref(f)); | |
108 | VERIFY( F::copycount == 0 ); | |
109 | fut.get(); | |
110 | VERIFY( F::copycount == 0 ); | |
111 | } | |
112 | ||
113 | int | |
114 | main() | |
115 | { | |
116 | test01(); | |
117 | test02(); | |
118 | test03(); | |
119 | } |