https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103297
Bug ID: 103297 Summary: GCC cannot detect out of bounds in constexpr context. Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: unlvsur at live dot com Target Milestone: --- inline constexpr void out_of_bounds_detector(char const*,char const*) noexcept {} inline constexpr bool test() noexcept { char buffer[]="abcde"; out_of_bounds_detector(buffer,buffer+7);//should give a hard error return true; } static_assert(test()); while clang and msvc can all detect this correctly.