23 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++03, c++11, c++14, c++17, c++2010 11// [utility.underlying], to_underlying12// template <class T>13// constexpr underlying_type_t<T> to_underlying( T value ) noexcept; // C++2314 15#include <utility>16 17struct S {};18 19void f() {20 std::to_underlying(125); // expected-error {{no matching function for call}}21 std::to_underlying(S{}); // expected-error {{no matching function for call}}22}23