31 lines · c
1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___ITERATOR_DEFAULT_SENTINEL_H11#define _LIBCPP___ITERATOR_DEFAULT_SENTINEL_H12 13#include <__config>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_BEGIN_NAMESPACE_STD20 21#if _LIBCPP_STD_VER >= 2022 23struct default_sentinel_t {};24inline constexpr default_sentinel_t default_sentinel{};25 26#endif // _LIBCPP_STD_VER >= 2027 28_LIBCPP_END_NAMESPACE_STD29 30#endif // _LIBCPP___ITERATOR_DEFAULT_SENTINEL_H31