5f2da9c80d
AppleClang 15 was released on September 18th and is now stable. Per our policy, we're bumping the supported AppleClang compiler to the latest release. This allows cleaning up the test suite, but most importantly unblocking various other patches that are blocked on bumping the compiler requirements.
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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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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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// constexpr void emplace() noexcept;
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//
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// Effects: If has_value() is false, destroys unex and sets has_val to true.
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#include <cassert>
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#include <concepts>
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#include <expected>
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#include <type_traits>
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#include <utility>
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#include "../../types.h"
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#include "test_macros.h"
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template <class T>
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concept EmplaceNoexcept =
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requires(T t) {
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{ t.emplace() } noexcept;
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};
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static_assert(!EmplaceNoexcept<int>);
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static_assert(EmplaceNoexcept<std::expected<void, int>>);
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constexpr bool test() {
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// has_value
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{
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std::expected<void, int> e;
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e.emplace();
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assert(e.has_value());
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}
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// !has_value
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{
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Traced::state state{};
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std::expected<int, Traced> e(std::unexpect, state, 5);
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e.emplace();
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assert(state.dtorCalled);
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assert(e.has_value());
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}
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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