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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/108456] New: attribute deprecated on enum doesn't warn Date: Wed, 18 Jan 2023 18:45:14 +0000 [thread overview] Message-ID: <bug-108456-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108456 Bug ID: 108456 Summary: attribute deprecated on enum doesn't warn Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: mpolacek at gcc dot gnu.org Target Milestone: --- In this test: struct S { enum [[deprecated]] E { D }; }; int main() { auto a1 = S::D; auto a2 = S::E::D; } we emit a -Wdeprecated-declarations warning only for a2 but not a1, whereas clang++ warns for a1 too (twice, in fact). I suppose we want a warning there as well. C++20 using enum test: enum class [[deprecated]] E { X }; int main() { using enum E; auto a = X; } clang++ warns but g++ doesn't.
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