https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113662
--- Comment #33 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #10) > (In reply to Andrew Pinski from comment #9) > > There is something off by this offset_ptr. > > I am almost want to say this code is undefined; it is at least questionable. > > From the looks of it, it does: > > offset = (intptr_t)this - (intptr_t)array; > > then array = offset + (intptr_t)this; > > I am still trying to figure out if that is valid. I have not idea why boost > even has this kind of thing. I think this is OK, assuming array and offset are intptr_t and array is then re-interpreted as pointer.
