1 /*===---- __stddef_offsetof.h - Definition of offsetof ---------------------=== 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 /* 11 * When -fbuiltin-headers-in-system-modules is set this is a non-modular header 12 * and needs to behave as if it was textual. 13 */ 14 #if !defined(offsetof) || \ 15 (__has_feature(modules) && !__building_module(_Builtin_stddef)) 16 #define offsetof(t, d) __builtin_offsetof(t, d) 17 #endif 18