//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// struct default_sentinel_t;
// inline constexpr default_sentinel_t default_sentinel;
#include <iterator>
#include <concepts>
#include <type_traits>
#include "test_macros.h"
int main(int, char**) {
static_assert(std::is_empty_v<std::default_sentinel_t>);
static_assert(std::semiregular<std::default_sentinel_t>);
static_assert(std::same_as<decltype(std::default_sentinel), const std::default_sentinel_t>);
std::default_sentinel_t s1;
auto s2 = std::default_sentinel_t{};
s2 = s1;
return 0;
}