26 lines
782 B
C++
26 lines
782 B
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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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// const char* what() const noexcept override;
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#include <expected>
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#include <utility>
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template <class T>
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concept WhatNoexcept =
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requires(const T& t) {
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{ t.what() } noexcept;
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};
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struct foo{};
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static_assert(!WhatNoexcept<foo>);
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static_assert(WhatNoexcept<std::bad_expected_access<int>>);
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static_assert(WhatNoexcept<std::bad_expected_access<foo>>);
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