xref: /llvm-project-15.0.7/libcxx/test/std/thread/futures/futures.promise/copy_ctor.verify.cpp (revision a7f9895c)

//===----------------------------------------------------------------------===//
//
// 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: no-threads

// <future>

// class promise<R>

// promise(const promise&) = delete;

#include <future>

#include "test_macros.h"

int main(int, char**)
{
    {
        std::promise<int> p0;
        std::promise<int> p(p0); // expected-error {{call to deleted constructor of 'std::promise<int>'}}
    }
    {
        std::promise<int &> p0;
        std::promise<int &> p(p0); // expected-error {{call to deleted constructor of 'std::promise<int &>'}}
    }
    {
        std::promise<void> p0;
        std::promise<void> p(p0); // expected-error {{call to deleted constructor of 'std::promise<void>'}}
    }

    return 0;
}