4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <future>
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// class promise<R>
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// void promise::set_value(R&& r);
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#include <future>
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#include <memory>
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#include <cassert>
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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struct A
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{
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A() {}
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A(const A&) = delete;
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A(A&&) {throw 9;}
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};
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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int main()
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{
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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{
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typedef std::unique_ptr<int> T;
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T i(new int(3));
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std::promise<T> p;
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std::future<T> f = p.get_future();
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p.set_value(std::move(i));
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assert(*f.get() == 3);
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try
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{
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p.set_value(std::move(i));
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assert(false);
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}
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catch (const std::future_error& e)
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{
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assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied));
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}
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}
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{
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typedef A T;
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T i;
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std::promise<T> p;
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std::future<T> f = p.get_future();
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try
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{
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p.set_value(std::move(i));
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assert(false);
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}
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catch (int j)
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{
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assert(j == 9);
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}
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}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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}
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