On Saturday 2010-06-12 03:44, Ian Lance Taylor wrote: > >> Since in this particular case, member is the first field, >> one could also write >> >> for (pos = (struct item *)clh.next; ...) >> >> I hear that >> >> "C specifies that a struct * can be converted to and from a >> pointer to its first element." >> >> Does that change anything? > >Yes, it should generally be OK to cast between a pointer to a struct >type and a pointer to the type of the first element of the struct. So could it be that the aliasing optimizations are overzealous here?
