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 // UNSUPPORTED: libcpp-has-no-threads
11
12 // <future>
13
14 // class future<R>
15
16 // future& operator=(const future&) = delete;
17
18 #include <future>
19
20 #include "test_macros.h"
21
main()22 int main()
23 {
24 #if TEST_STD_VER >= 11
25 {
26 std::future<int> f0, f;
27 f = f0; // expected-error {{overload resolution selected deleted operator '='}}
28 }
29 {
30 std::future<int &> f0, f;
31 f = f0; // expected-error {{overload resolution selected deleted operator '='}}
32 }
33 {
34 std::future<void> f0, f;
35 f = f0; // expected-error {{overload resolution selected deleted operator '='}}
36 }
37 #else
38 {
39 std::future<int> f0, f;
40 f = f0; // expected-error {{'operator=' is a private member of 'std::__1::future<int>'}}
41 }
42 {
43 std::future<int &> f0, f;
44 f = f0; // expected-error {{'operator=' is a private member of 'std::__1::future<int &>'}}
45 }
46 {
47 std::future<void> f0, f;
48 f = f0; // expected-error {{'operator=' is a private member of 'std::__1::future<void>'}}
49 }
50 #endif
51 }
52