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-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
10
11 // [utility.underlying], to_underlying
12 // template <class T>
13 // constexpr underlying_type_t<T> to_underlying( T value ) noexcept; // C++2b
14
15 #include <utility>
16
17 struct S {};
18
main(int,char **)19 int main(int, char**) {
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 return 0;
24 }
25