public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "raul at tambre dot ee" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/95287] New: Incorrect default argument checking for specializations of functions with parameter packs Date: Sat, 23 May 2020 12:34:30 +0000 [thread overview] Message-ID: <bug-95287-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95287 Bug ID: 95287 Summary: Incorrect default argument checking for specializations of functions with parameter packs Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: raul at tambre dot ee Target Milestone: --- template<class... Ts> void j(int i = 0, Ts... ts) {} template<> void j<int>(int i, int j) {} Fails to compile with: <source>:5:24: error: default argument missing for parameter 2 of 'void j(int, Ts ...) [with Ts = {int}]' 5 | void j<int>(int i, int j) {} | ~~~~^ <source>:5:17: note: ...following parameter 1 which has a default argument 5 | void j<int>(int i, int j) {} | ~~~~^ This is valid code. Possibly related to DR2233[0], which supersedes DR777[1]. MSVC and ICC accept this code. Clang has a patch in review to implement DR2233[2]. [0] http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#2233 [1] http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#777 [2] https://reviews.llvm.org/D79800
next reply other threads:[~2020-05-23 12:34 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-23 12:34 raul at tambre dot ee [this message] 2020-05-23 12:36 ` [Bug c++/95287] " raul at tambre dot ee
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-95287-4@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).