* [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr
[not found] <20021122091602.8680.apm35@student.open.ac.uk>
@ 2003-05-25 23:20 ` pinskia@physics.uc.edu
2003-08-02 18:19 ` pinskia at physics dot uc dot edu
` (2 subsequent siblings)
3 siblings, 0 replies; 4+ messages in thread
From: pinskia@physics.uc.edu @ 2003-05-25 23:20 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8680
pinskia@physics.uc.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #1864|application/octet-stream |text/plain
mime type| |
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2003-05-25 23:11:13
date| |
------- Additional Comments From pinskia@physics.uc.edu 2003-05-25 23:11 -------
confirmed on mainline (20030525) with modified sources (for 3.4 fixes of pedantic):
extern "C" {
void doSomething(int, void*(*)(void*));
}
void* func(void*);
int main()
{
doSomething(1, func);
return 0;
}
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr
[not found] <20021122091602.8680.apm35@student.open.ac.uk>
2003-05-25 23:20 ` [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr pinskia@physics.uc.edu
@ 2003-08-02 18:19 ` pinskia at physics dot uc dot edu
2003-08-03 20:48 ` apm35 at student dot open dot ac dot uk
2005-08-20 7:56 ` dbaron at dbaron dot org
3 siblings, 0 replies; 4+ messages in thread
From: pinskia at physics dot uc dot edu @ 2003-08-02 18:19 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8680
pinskia at physics dot uc dot edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Keywords| |diagnostic
Resolution| |WONTFIX
------- Additional Comments From pinskia at physics dot uc dot edu 2003-08-02 18:19 -------
Actually I think this warning message is useless as the standard does not talk about the
difference between C and C++ function (except for mangling).
Also ICC 6.0 in strict mode does not warn about this.
And EDG 2.40 (Mar 22 2001 17:35:55) does not warn either.
So closing as will not fix.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr
[not found] <20021122091602.8680.apm35@student.open.ac.uk>
2003-05-25 23:20 ` [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr pinskia@physics.uc.edu
2003-08-02 18:19 ` pinskia at physics dot uc dot edu
@ 2003-08-03 20:48 ` apm35 at student dot open dot ac dot uk
2005-08-20 7:56 ` dbaron at dbaron dot org
3 siblings, 0 replies; 4+ messages in thread
From: apm35 at student dot open dot ac dot uk @ 2003-08-03 20:48 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8680
------- Additional Comments From apm35 at student dot open dot ac dot uk 2003-08-03 20:47 -------
Subject: Re: g++ doesn't warn when passing a C++ funcptr instead of extern
gcc-bugzilla@gcc.gnu.org writes:
>PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
[snip]
>So closing as will not fix.
I will have to find the relevant section of the std that says a diagnostic
is required in this case. Stay tuned.
Regards,
Andrew Marlow
----
There is an emerald here the size of a plover's egg!
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/8680] g++ doesn't warn when passing a C++ funcptr instead of extern "C" funcptr
[not found] <20021122091602.8680.apm35@student.open.ac.uk>
` (2 preceding siblings ...)
2003-08-03 20:48 ` apm35 at student dot open dot ac dot uk
@ 2005-08-20 7:56 ` dbaron at dbaron dot org
3 siblings, 0 replies; 4+ messages in thread
From: dbaron at dbaron dot org @ 2005-08-20 7:56 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dbaron at dbaron dot org 2005-08-20 04:33 -------
As I wrote in https://bugzilla.mozilla.org/show_bug.cgi?id=81385#c9 :
Looking at the C++ standard (the out-of-date 1998 version, I admit), as far as I
can tell a conformant compiler is required to give a diagnostic for this. In
particular, section 7.5 [dcl.link] clause 1 says that function types with
different linkage are different types, section 4 [conv] does not describe any
standard conversions that could convert between them, and section 5.2.2
[expr.call] clause 4 and section 8.5 [dcl.init] clauses 12 and 14 seem to
require that such a conversion exist.
In particular, the last says that the conversion is ill-formed, which 1.4
[intro.compliance] says requires a diagnostic.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |dbaron at dbaron dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8680
^ permalink raw reply [flat|nested] 4+ messages in thread