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 22