15f757f3fSDimitry Andric /*===---- __stddef_offsetof.h - Definition of offsetof ---------------------=== 25f757f3fSDimitry Andric * 35f757f3fSDimitry Andric * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 45f757f3fSDimitry Andric * See https://llvm.org/LICENSE.txt for license information. 55f757f3fSDimitry Andric * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65f757f3fSDimitry Andric * 75f757f3fSDimitry Andric *===-----------------------------------------------------------------------=== 85f757f3fSDimitry Andric */ 95f757f3fSDimitry Andric 10*439352acSDimitry Andric /* 11*439352acSDimitry Andric * When -fbuiltin-headers-in-system-modules is set this is a non-modular header 12*439352acSDimitry Andric * and needs to behave as if it was textual. 13*439352acSDimitry Andric */ 14*439352acSDimitry Andric #if !defined(offsetof) || \ 15*439352acSDimitry Andric (__has_feature(modules) && !__building_module(_Builtin_stddef)) 165f757f3fSDimitry Andric #define offsetof(t, d) __builtin_offsetof(t, d) 175f757f3fSDimitry Andric #endif 18