public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "ed at catmur dot uk" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/111090] New: Bogus -Wuninitialized for trivial copy of nested struct with partially initialized array Date: Mon, 21 Aug 2023 16:18:07 +0000 [thread overview] Message-ID: <bug-111090-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111090 Bug ID: 111090 Summary: Bogus -Wuninitialized for trivial copy of nested struct with partially initialized array Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: ed at catmur dot uk Target Milestone: --- struct A { A() { buf[0] = 0; } int buf[2]; }; struct B { A a; }; struct C { C(B const& b) : b(b) {} B b; }; struct D { D(C c) : c(c) {} C c; }; D f() { return D(C(B())); } In constructor 'C::C(const B&)', inlined from 'D f()' at <source>:14:16: <source>:7:21: warning: '<unnamed>.B::a.A::a[1]' is used uninitialized [-Wuninitialized] 7 | C(B const& b) : b(b) {} | ^~~~ <source>: In function 'D f()': <source>:14:22: note: '<anonymous>' declared here 14 | D f() { return D(C(B())); } | ^ This appears to have started in 7.1.
next reply other threads:[~2023-08-21 16:18 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-08-21 16:18 ed at catmur dot uk [this message] 2023-08-21 16:18 ` [Bug c++/111090] " ed at catmur dot uk 2023-08-21 16:27 ` [Bug tree-optimization/111090] " pinskia at gcc dot gnu.org 2023-08-21 16:30 ` pinskia at gcc dot gnu.org 2023-08-21 17:01 ` ed at catmur dot uk
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-111090-4@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).