https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90525
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |UNCONFIRMED Ever confirmed|1 |0 --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- The warning means to say that the pointers formed by adding the offsets to the starting address are out-of-bounds. Offset 1 from &t.a isn't out-of-bounds -- it points just past the end of t.a (it just isn't dereferenceable). But offsets 2 and 3 definitely are out of the bounds of t.a.