https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71701
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to fail| |9.3.0 Version|7.0 |9.0 Target Milestone|--- |9.0 Resolution|--- |FIXED CC| |msebor at gcc dot gnu.org Status|UNCONFIRMED |RESOLVED --- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> --- The warning has disappeared with r263660 (9.0.0 20180820): PR c++/78655 (gcc doesn't exploit the fact that the result of pointer addition can not be nullptr) I could only reproduce it with the preprocessed test case from attachment 38791. Since it depends on the contents of Glibc headers I'm going to resolve it as fixed without adding a test case.