8508b1c133
After this patch, we can use `--param std=c++20` even if the compiler only supports -std=c++2a. The test suite will handle that for us. The only Lit feature that isn't fully baked will always be the "in development" one, since we don't know exactly what year the standard will be ratified in. This is another take on https://reviews.llvm.org/D99789. Differential Revision: https://reviews.llvm.org/D100210
25 lines
796 B
C++
25 lines
796 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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// [utility.underlying], to_underlying
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// template <class T>
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// constexpr underlying_type_t<T> to_underlying( T value ) noexcept; // C++2b
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#include <utility>
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struct S {};
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int main(int, char**) {
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std::to_underlying(125); // expected-error {{no matching function for call}}
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std::to_underlying(S{}); // expected-error {{no matching function for call}}
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return 0;
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}
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