| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // UNSUPPORTED: no-threads |
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| 10 | // UNSUPPORTED: c++03 |
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| 11 | |
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| 12 | // <future> |
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| 13 | |
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| 14 | // class packaged_task<R(ArgTypes...)> |
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| 15 | |
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| 16 | // packaged_task& operator=(packaged_task&& other); |
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| 17 | |
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| 18 | #include <future> |
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| 19 | #include <cassert> |
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| 20 | |
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| 21 | #include "test_macros.h" |
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| 22 | |
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| 23 | class A |
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| 24 | { |
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| 25 | long data_; |
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| 26 | |
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| 27 | public: |
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| 28 | explicit A(long i) : data_(i) {} |
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| 29 | |
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| 30 | long operator()(long i, long j) const {return data_ + i + j;} |
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| 31 | }; |
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| 32 | |
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| 33 | int main(int, char**) |
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| 34 | { |
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| 35 | { |
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| 36 | std::packaged_task<double(int, char)> p0(A(5)); |
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| 37 | std::packaged_task<double(int, char)> p; |
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| 38 | p = std::move(p0); |
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| 39 | assert(!p0.valid()); |
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| 40 | assert(p.valid()); |
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| 41 | std::future<double> f = p.get_future(); |
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| 42 | p(3, 97); |
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| 43 | assert(f.get() == 105.0); |
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| 44 | } |
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| 45 | { |
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| 46 | std::packaged_task<double(int, char)> p0; |
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| 47 | std::packaged_task<double(int, char)> p; |
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| 48 | p = std::move(p0); |
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| 49 | assert(!p0.valid()); |
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| 50 | assert(!p.valid()); |
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| 51 | } |
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| 52 | |
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| 53 | return 0; |
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| 54 | } |
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| 55 | |
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