1/*===---- __stddef_unreachable.h - Definition of unreachable ---------------===
 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
10#ifndef __cplusplus
11
12/*
13 * When -fbuiltin-headers-in-system-modules is set this is a non-modular header
14 * and needs to behave as if it was textual.
15 */
16#if !defined(unreachable) ||                                                   \
17    (__has_feature(modules) && !__building_module(_Builtin_stddef))
18#define unreachable() __builtin_unreachable()
19#endif
20
21#endif