public inbox for gcc-prs@sourceware.org
help / color / mirror / Atom feed
* Re: c++/8876: wrong template instantiation
@ 2002-12-09 13:15 bangerth
0 siblings, 0 replies; 4+ messages in thread
From: bangerth @ 2002-12-09 13:15 UTC (permalink / raw)
To: benoitsevigny, gcc-bugs, gcc-prs, nobody
Synopsis: wrong template instantiation
State-Changed-From-To: open->feedback
State-Changed-By: bangerth
State-Changed-When: Mon Dec 9 13:15:26 2002
State-Changed-Why:
Your attachment got lost somehow. Could you possibly send it
to me so that I can attach it to the report?
Thanks
Wolfgang
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8876
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: c++/8876: wrong template instantiation
@ 2002-12-09 19:06 bangerth
0 siblings, 0 replies; 4+ messages in thread
From: bangerth @ 2002-12-09 19:06 UTC (permalink / raw)
To: benoitsevigny, gcc-bugs, gcc-prs, nobody
Synopsis: wrong template instantiation
State-Changed-From-To: feedback->open
State-Changed-By: bangerth
State-Changed-When: Mon Dec 9 19:06:18 2002
State-Changed-Why:
Testcase now attached.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8876
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: c++/8876: wrong template instantiation
@ 2002-12-09 18:26 Benoit Sevigny
0 siblings, 0 replies; 4+ messages in thread
From: Benoit Sevigny @ 2002-12-09 18:26 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/8876; it has been noted by GNATS.
From: "Benoit Sevigny" <benoitsevigny@hotmail.com>
To: bangerth@dealii.org, benoitsevigny@hotmail.com, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:
Subject: Re: c++/8876: wrong template instantiation
Date: Mon, 09 Dec 2002 21:18:22 -0500
This is a multi-part message in MIME format.
------=_NextPart_000_252a_61df_4e24
Content-Type: text/html
<html><div style='background-color:'><DIV>
<P>Thanks for the quick reply.</P>
<P>Here's the offending code.<BR></P></DIV>
<P>Regards</P>
<DIV></DIV>
<P>Benoit Sevigny</P>
<P><BR> </P>
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>>From: bangerth@dealii.org
<DIV></DIV>
<DIV></DIV>>Reply-To: bangerth@dealii.org, benoitsevigny@hotmail.com, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
<DIV></DIV>
<DIV></DIV>>To: benoitsevigny@hotmail.com, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org
<DIV></DIV>
<DIV></DIV>>Subject: Re: c++/8876: wrong template instantiation
<DIV></DIV>
<DIV></DIV>>Date: 9 Dec 2002 21:15:28 -0000
<DIV></DIV>
<DIV></DIV>>
<DIV></DIV>
<DIV></DIV>>Synopsis: wrong template instantiation
<DIV></DIV>
<DIV></DIV>>
<DIV></DIV>
<DIV></DIV>>State-Changed-From-To: open->feedback
<DIV></DIV>
<DIV></DIV>>State-Changed-By: bangerth
<DIV></DIV>
<DIV></DIV>>State-Changed-When: Mon Dec 9 13:15:26 2002
<DIV></DIV>
<DIV></DIV>>State-Changed-Why:
<DIV></DIV>
<DIV></DIV>> Your attachment got lost somehow. Could you possibly send it
<DIV></DIV>
<DIV></DIV>> to me so that I can attach it to the report?
<DIV></DIV>
<DIV></DIV>>
<DIV></DIV>
<DIV></DIV>> Thanks
<DIV></DIV>
<DIV></DIV>> Wolfgang
<DIV></DIV>
<DIV></DIV>>
<DIV></DIV>
<DIV></DIV>>http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8876
<DIV></DIV>
<DIV></DIV>
<DIV></DIV></div><br clear=all><hr>Protect your PC - <a href="http://g.msn.com/8HMHEN/2024">Click here</a> for McAfee.com VirusScan Online </html>
------=_NextPart_000_252a_61df_4e24
Content-Type: text/plain; name="gccbug.cxx"; format=flowed
Content-Transfer-Encoding: 8bit
Content-Disposition: attachment; filename="gccbug.cxx"
#include <stdio.h>
template<int l, int r> struct selector {
enum { SUM = l + r, CONSTANT = 100 };
};
template<int f> struct function {
template<typename L, typename R> struct special {
static void func()
{
printf("in function<%d>: l = %d, r = %d\n", f, L::PARAM, R::PARAM);
}
};
};
template<> struct function<3> {
template<typename L, typename R> struct special {
static void func()
{
printf("in function<3>: l = %d, r = %d\n", f, L::PARAM, R::PARAM);
}
};
};
template<> struct function<100> {
template<typename L, typename R> struct special {
static void func()
{
printf("in function<100>: l = %d, r = %d\n", f, L::PARAM, R::PARAM);
}
};
};
template<int l> struct object {
enum { PARAM = l };
template<int r> inline void sum(const object<r> &arg)
{
printf("calling function<%d> -> ", selector< l, r>::SUM);
function< selector< l, r>::SUM >::special< object<l>, object<r> >::func();
}
template<int r> inline void constant(const object<r> &arg)
{
printf("calling function<%d> -> ", selector< l, r>::CONSTANT);
function< selector< l, r>::CONSTANT >::special< object<l>, object<r>
>::func();
}
};
int main(int argc, const char *argv[])
{
object<1> obj1; object<2> obj2;
obj1.sum(obj2); // this should print: "in function<3>: l = 1, r = 2"
obj2.sum(obj1); // this should print: "in function<3>: l = 2, r = 1"
obj1.constant(obj2); // this should print: "in function<100>: l = 1, r = 2"
obj2.constant(obj1); // this should print: "in function<100>: l = 2, r = 1"
return 0;
}
------=_NextPart_000_252a_61df_4e24--
^ permalink raw reply [flat|nested] 4+ messages in thread
* c++/8876: wrong template instantiation
@ 2002-12-08 15:06 benoitsevigny
0 siblings, 0 replies; 4+ messages in thread
From: benoitsevigny @ 2002-12-08 15:06 UTC (permalink / raw)
To: gcc-gnats
>Number: 8876
>Category: c++
>Synopsis: wrong template instantiation
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Sun Dec 08 15:06:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Benoit Sevigny
>Release: gcc version 3.2 (mingw special 20020817-1)
>Organization:
>Environment:
Window XP
>Description:
When calling a static function of an explicitely instantiated template structure enclosed in another template structure, the wrong template is being instantiated.
>How-To-Repeat:
compile and run the attached code.
It should print (as with Visual C++ 6.0):
calling function<3> -> in function<3>: l = 1, r = 2
calling function<3> -> in function<3>: l = 2, r = 1
calling function<100> -> in function<100>: l = 1, r = 2
calling function<100> -> in function<100>: l = 2, r = 1
However, if it prints:
calling function<3> -> in function<1>: l = 1, r = 2
calling function<3> -> in function<2>: l = 2, r = 1
calling function<100> -> in function<1>: l = 1, r = 2
calling function<100> -> in function<2>: l = 2, r = 1
Then the wrong function template it being instantiated.
>Fix:
No fix known
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2002-12-10 3:06 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-12-09 13:15 c++/8876: wrong template instantiation bangerth
-- strict thread matches above, loose matches on Subject: below --
2002-12-09 19:06 bangerth
2002-12-09 18:26 Benoit Sevigny
2002-12-08 15:06 benoitsevigny
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).