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* [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression [not found] <bug-71962-4@http.gcc.gnu.org/bugzilla/> @ 2020-03-30 21:54 ` herring at lanl dot gov 2022-12-31 21:44 ` pinskia at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 4+ messages in thread From: herring at lanl dot gov @ 2020-03-30 21:54 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71962 S. Davis Herring <herring at lanl dot gov> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |herring at lanl dot gov --- Comment #9 from S. Davis Herring <herring at lanl dot gov> --- Another very similar failure (let me know if you want a separate bug for it): inline constexpr int x=0,y=0; // -std=c++17 static_assert(&x!=&y); // error: '((& x) != (& y))' is not a constant expression No failure without the 'inline'. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression [not found] <bug-71962-4@http.gcc.gnu.org/bugzilla/> 2020-03-30 21:54 ` [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression herring at lanl dot gov @ 2022-12-31 21:44 ` pinskia at gcc dot gnu.org 2023-06-30 4:32 ` pinskia at gcc dot gnu.org 2024-03-25 15:40 ` barry.revzin at gmail dot com 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-12-31 21:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71962 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |trippels at gcc dot gnu.org --- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> --- *** Bug 67762 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression [not found] <bug-71962-4@http.gcc.gnu.org/bugzilla/> 2020-03-30 21:54 ` [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression herring at lanl dot gov 2022-12-31 21:44 ` pinskia at gcc dot gnu.org @ 2023-06-30 4:32 ` pinskia at gcc dot gnu.org 2024-03-25 15:40 ` barry.revzin at gmail dot com 3 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-06-30 4:32 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71962 --- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> --- *** Bug 110493 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression [not found] <bug-71962-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2023-06-30 4:32 ` pinskia at gcc dot gnu.org @ 2024-03-25 15:40 ` barry.revzin at gmail dot com 3 siblings, 0 replies; 4+ messages in thread From: barry.revzin at gmail dot com @ 2024-03-25 15:40 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71962 Barry Revzin <barry.revzin at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |barry.revzin at gmail dot com --- Comment #12 from Barry Revzin <barry.revzin at gmail dot com> --- Similar failure: struct A { void f(); }; int main() { constexpr auto pmf = &A::f; static_assert(pmf != nullptr); // error with UBSAN only } This surfaces from attempting to implement function_ref (https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p0792r14.html) which has a constructor that takes the callable as a non-type template parameter and static_asserts that it's not a null pointer. Which apparently doesn't work with UBSAN. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-03-25 15:40 UTC | newest]
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[not found] <bug-71962-4@http.gcc.gnu.org/bugzilla/>
2020-03-30 21:54 ` [Bug sanitizer/71962] error: ‘((& x) != 0u)’ is not a constant expression herring at lanl dot gov
2022-12-31 21:44 ` pinskia at gcc dot gnu.org
2023-06-30 4:32 ` pinskia at gcc dot gnu.org
2024-03-25 15:40 ` barry.revzin at gmail dot com
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