public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "zak at transversal dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/31187] New: [4.2 regression] extern declaration of variable in anonymous namespace prevents use of its address as template argument Date: Thu, 15 Mar 2007 14:25:00 -0000 [thread overview] Message-ID: <bug-31187-1827@http.gcc.gnu.org/bugzilla/> (raw) The following code, which compiles fine on gcc 4.1.2 and I believe is valid, fails on an up-to-date checkout from the 4.2 branch: -------------------------------------- class foo { }; namespace { extern foo foo1; foo foo1; } template< foo * > class bar { }; bar< &foo1 > bar1; --------------------------------------- giving the error: test.cc:12: error: '&<unnamed>::foo1' is not a valid template argument of type 'foo*' because '<unnamed>::foo1' does not have external linkage test.cc:12: error: invalid type in declaration before ';' token ... which I would only expect if "foo1" were declared "static". If I remove the line with the "extern" declaration, the code compiles again on 4.2. -- Summary: [4.2 regression] extern declaration of variable in anonymous namespace prevents use of its address as template argument Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: zak at transversal dot com GCC build triplet: x86_64-pc-linux-gnu GCC host triplet: x86_64-pc-linux-gnu GCC target triplet: x86_64-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31187
next reply other threads:[~2007-03-15 14:25 UTC|newest] Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top 2007-03-15 14:25 zak at transversal dot com [this message] 2007-03-15 16:06 ` [Bug c++/31187] [4.2/4.3 " pinskia at gcc dot gnu dot org 2007-03-15 16:07 ` pinskia at gcc dot gnu dot org 2007-03-16 15:15 ` gdr at cs dot tamu dot edu 2007-03-16 15:15 ` [Bug c++/31187] New: [4.2 " Gabriel Dos Reis 2007-03-22 23:17 ` [Bug c++/31187] [4.2/4.3 " mmitchel at gcc dot gnu dot org 2007-03-22 23:34 ` mmitchel at gcc dot gnu dot org 2007-03-23 2:37 ` bangerth at dealii dot org 2007-03-23 2:44 ` mark at codesourcery dot com 2007-03-23 3:03 ` bangerth at dealii dot org 2007-03-27 2:37 ` jason at gcc dot gnu dot org 2007-04-02 17:50 ` jason at gcc dot gnu dot org 2007-04-02 19:12 ` jason at gcc dot gnu dot org 2007-04-09 21:43 ` jason at gcc dot gnu dot org 2007-06-26 11:58 ` jakub at gcc dot gnu dot org
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-31187-1827@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).