------- Comment #6 from bero at arklinux dot org 2006-05-23 21:41 ------- It is creative offsetof indeed -- this a "explanation" from a bit of code referenced to this one [while it isn't free yet, its license does allow posting bits of it online]:
// HACK: gcc warns about applying offsetof() to non-POD object or calculating // offset directly when base address is NULL. Use 16 to get around the // warning. gcc-3.4 has an option -Wno-invalid-offsetof to suppress // this warning. #define offset_of(klass,field) (size_t)((intx)&(((klas*)16)->field) - 16) Looks like someone was desperate to get his stuff to compile with -Werror without having to fix the cause. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27724
