| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| // UNSUPPORTED: c++98, c++03 |
| |
| // <future> |
| |
| // class promise<R> |
| |
| // void promise::set_value(const R& r); |
| |
| #include <future> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| struct A |
| { |
| A() {} |
| A(const A&) { |
| TEST_THROW(10); |
| } |
| }; |
| |
| int main(int, char**) |
| { |
| { |
| typedef int T; |
| T i = 3; |
| std::promise<T> p; |
| std::future<T> f = p.get_future(); |
| p.set_value(i); |
| ++i; |
| assert(f.get() == 3); |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| --i; |
| try |
| { |
| p.set_value(i); |
| assert(false); |
| } |
| catch (const std::future_error& e) |
| { |
| assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied)); |
| } |
| #endif |
| } |
| { |
| typedef A T; |
| T i; |
| std::promise<T> p; |
| std::future<T> f = p.get_future(); |
| #ifndef TEST_HAS_NO_EXCEPTIONS |
| try |
| { |
| p.set_value(i); |
| assert(false); |
| } |
| catch (int j) |
| { |
| assert(j == 10); |
| } |
| #endif |
| } |
| |
| return 0; |
| } |