| 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 | // template <class F> |
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| 16 | // packaged_task(F&& f); |
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| 17 | // These constructors shall not participate in overload resolution if |
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| 18 | // decay<F>::type is the same type as std::packaged_task<R(ArgTypes...)>. |
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| 19 | |
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| 20 | #include <future> |
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| 21 | #include <cassert> |
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| 22 | |
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| 23 | struct A {}; |
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| 24 | typedef std::packaged_task<A(int, char)> PT; |
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| 25 | typedef volatile std::packaged_task<A(int, char)> VPT; |
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| 26 | |
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| 27 | |
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| 28 | int main(int, char**) |
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| 29 | { |
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| 30 | VPT init{}; |
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| 31 | auto const& c_init = init; |
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| 32 | PT p1{init}; // expected-error {{no matching constructor}} |
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| 33 | PT p2{c_init}; // expected-error {{no matching constructor}} |
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| 34 | PT p3{std::move(init)}; // expected-error {{no matching constructor for initialization of 'PT' (aka 'packaged_task<A (int, char)>')}} |
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| 35 | |
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| 36 | return 0; |
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| 37 | } |
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| 38 | |
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