mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-26 08:36:07 +00:00
29 lines
851 B
C
29 lines
851 B
C
|
// RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -verify -fms-compatibility
|
||
|
|
// RUN: %clang_cc1 %s -triple i686-pc-win32 -fsyntax-only -verify
|
||
|
|
// expected-no-diagnostics
|
||
|
|
|
||
|
|
typedef __typeof__(sizeof(0)) size_t;
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#ifndef _CRT_USE_BUILTIN_OFFSETOF
|
||
|
|
#error _CRT_USE_BUILTIN_OFFSETOF should be predefined in MSVC-compatible modes.
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
#ifdef _CRT_USE_BUILTIN_OFFSETOF
|
||
|
|
#error _CRT_USE_BUILTIN_OFFSETOF should not be predefined in non-MSVC-compatible modes.
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined _MSC_VER && !defined _CRT_USE_BUILTIN_OFFSETOF
|
||
|
|
#ifdef __cplusplus
|
||
|
|
#define offsetof(s,m) ((::size_t)&reinterpret_cast<char const volatile&>((((s*)0)->m)))
|
||
|
|
#else
|
||
|
|
#define offsetof(s,m) ((size_t)&(((s*)0)->m))
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
#define offsetof(s,m) __builtin_offsetof(s,m)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct S { int a; };
|
||
|
|
_Static_assert(offsetof(struct S, a) == 0, "");
|