| 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 |