Changeset 1448 in vbox for trunk/include/iprt

Timestamp:

Mar 13, 2007 4:12:21 PM (18 years ago)

Author:

vboxsync

Message:

AssertCompileMemberAlignment didn't work in C++ code on with gcc 4.1.1 (amd64 only it seems). Use the builtin offsetof function there instead. (Hope this doesn't cause trouble...)

File:

• trunk/include/iprt/cdefs.h (modified) (1 diff)

trunk/include/iprt/cdefs.h

@@ -776 +776 @@
  * @param   member  Member.
  */
-#define RT_OFFSETOF(type, member)      ( (int)(uintptr_t)&( ((type *)(void *)0)->member) )
+#if defined(__GNUC__) && defined(__cplusplus)
+# define RT_OFFSETOF(type, member)      ( (int)__builtin_offsetof(type, member) )
+#else
+# define RT_OFFSETOF(type, member)      ( (int)(uintptr_t)&( ((type *)(void *)0)->member) )
+#endif 
 
 /** @def RT_SIZEOFMEMB