d2cb198f25
This patch removes the non compliant constructor of std::future_error and adds the standards compliant constructor in C++17 instead. Note that we can't support the constructor as an extension in all standard modes because it uses delegating constructors, which require C++11. We could in theory support the constructor as an extension in C++11 and C++14 only, however I believe it is acceptable not to do that since I expect the breakage from this patch will be minimal. If it turns out that more code than we expect is broken by this, we can reconsider that decision. This was found during D99515. Differential Revision: https://reviews.llvm.org/D99567 Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
53 lines
1.7 KiB
C++
53 lines
1.7 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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//
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// class future_error
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//
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// const error_code& code() const noexcept;
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#include <cassert>
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#include <future>
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#include <utility>
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#include "test_macros.h"
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int main(int, char**) {
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ASSERT_NOEXCEPT(std::declval<std::future_error const&>().code());
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ASSERT_SAME_TYPE(decltype(std::declval<std::future_error const&>().code()), std::error_code const&);
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// Before C++17, we can't construct std::future_error directly in a standards-conforming way
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#if TEST_STD_VER >= 17
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{
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std::future_error const f(std::future_errc::broken_promise);
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std::error_code const& code = f.code();
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assert(code == std::make_error_code(std::future_errc::broken_promise));
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}
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{
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std::future_error const f(std::future_errc::future_already_retrieved);
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std::error_code const& code = f.code();
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assert(code == std::make_error_code(std::future_errc::future_already_retrieved));
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}
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{
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std::future_error const f(std::future_errc::promise_already_satisfied);
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std::error_code const& code = f.code();
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assert(code == std::make_error_code(std::future_errc::promise_already_satisfied));
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}
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{
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std::future_error const f(std::future_errc::no_state);
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std::error_code const& code = f.code();
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assert(code == std::make_error_code(std::future_errc::no_state));
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}
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#endif
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return 0;
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}
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