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#ifndef _LIBCPP___UTILITY_UNREACHABLE_H
10#define _LIBCPP___UTILITY_UNREACHABLE_H
11
12#include <__assert>
13#include <__config>
14
15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16# pragma GCC system_header
17#endif
18
19_LIBCPP_BEGIN_NAMESPACE_STD
20
21_LIBCPP_NORETURN _LIBCPP_HIDE_FROM_ABI inline void __libcpp_unreachable() {
22 _LIBCPP_ASSERT_INTERNAL(false, "std::unreachable() was reached");
23 __builtin_unreachable();
24}
25
26#if _LIBCPP_STD_VER >= 23
27
28[[noreturn]] _LIBCPP_HIDE_FROM_ABI inline void unreachable() { __libcpp_unreachable(); }
29
30#endif
31
32_LIBCPP_END_NAMESPACE_STD
33
34#endif // _LIBCPP___UTILITY_UNREACHABLE_H
35