public inbox for gcc-prs@sourceware.org help / color / mirror / Atom feed
From: "Gu, Michael" <Michael_Gu@maxtor.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: RE: c++/7934: definition of static member for template class miss ing in obj file Date: Wed, 04 Dec 2002 06:56:00 -0000 [thread overview] Message-ID: <20021204145607.16537.qmail@sources.redhat.com> (raw) The following reply was made to PR c++/7934; it has been noted by GNATS. From: "Gu, Michael" <Michael_Gu@maxtor.com> To: "'bangerth@dealii.org'" <bangerth@dealii.org>, "'gcc-bugs@gcc.gnu.org'" <gcc-bugs@gcc.gnu.org>, "'gcc-prs@gcc.gnu.org'" <gcc-prs@gcc.gnu.org>, "Gu, Michael" <Michael_Gu@Maxtor.com>, "'mkjyg@charter.net'" <mkjyg@charter.net>, "'nobody@gcc.gnu.org'" <nobody@gcc.gnu.org>, "'gcc-gnats@gcc.gnu.org'" <gcc-gnats@gcc.gnu.org> Cc: "'mkjyg@charter.net'" <mkjyg@charter.net> Subject: RE: c++/7934: definition of static member for template class miss ing in obj file Date: Wed, 4 Dec 2002 07:41:04 -0700 Wolfgang, My description was not detailed enough. Here is the code example: template <class T> class A { static T * instance; }; template <class T> T * instance=0; Note all of the above codes are in a header file - I know this doesn't sound right, but on the other hand I don't have a better solution for this. This is not my code either. I guess the idea is that when the template class is used, the instance will be automatically defined. The same gcc on Sun works for this. So I guess this might be a library problem for HP compatibility. Michael -----Original Message----- From: bangerth@dealii.org [mailto:bangerth@dealii.org] Sent: Tuesday, December 03, 2002 6:10 PM To: gcc-bugs@gcc.gnu.org; gcc-prs@gcc.gnu.org; michael_gu@maxtor.com; mkjyg@charter.net; nobody@gcc.gnu.org Subject: Re: c++/7934: definition of static member for template class missing in obj file Synopsis: definition of static member for template class missing in obj file State-Changed-From-To: open->feedback State-Changed-By: bangerth State-Changed-When: Tue Dec 3 15:10:06 2002 State-Changed-Why: Hi Michael, your bug report is missing a code example, so it is hard to tell whether the problem is with the compiler or your program. Please send it to us so that we can tell. However, note that a common source of problems is that people write code like template <class T> struct X { static int i; } Now, in order to actually get a _definition_ of the static member variable, you have to have a line like template <class T> int X<T>::i; in your program. Regards Wolfgang http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&p r=7934
next reply other threads:[~2002-12-04 14:56 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-12-04 6:56 Gu, Michael [this message] 2002-12-04 7:06 Wolfgang Bangerth
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=20021204145607.16537.qmail@sources.redhat.com \ --to=michael_gu@maxtor.com \ --cc=gcc-prs@gcc.gnu.org \ --cc=nobody@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).