42 lines
1.9 KiB
C++
42 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: no-threads
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// <future>
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// class packaged_task<R(ArgTypes...)>
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// template <class F, class Allocator>
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// packaged_task(allocator_arg_t, const Allocator& a, F&& f);
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// These constructors shall not participate in overload resolution if
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// decay<F>::type is the same type as std::packaged_task<R(ArgTypes...)>.
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#include <cassert>
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#include <future>
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#include "test_allocator.h"
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struct A {};
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using PT = std::packaged_task<A(int, char)>;
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using VPT = volatile std::packaged_task<A(int, char)>;
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static_assert(!std::is_constructible<PT, std::allocator_arg_t, test_allocator<A>, VPT>::value, "");
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using PA = std::packaged_task<A(int)>;
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using PI = std::packaged_task<int(int)>;
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static_assert(!std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, const PA&>::value, "");
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static_assert(!std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, const PA&&>::value, "");
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static_assert(!std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, volatile PA&>::value, "");
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static_assert(!std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, volatile PA&&>::value, "");
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static_assert( std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, const PI&>::value, "");
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static_assert( std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, const PI&&>::value, "");
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static_assert( std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, volatile PI&>::value, "");
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static_assert( std::is_constructible<PA, std::allocator_arg_t, std::allocator<A>, volatile PI&&>::value, "");
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