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From: "aldot at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/36282] Spurious warning "asm declaration ignored due to conflict with previous rename"
Date: Thu, 21 Mar 2013 18:21:00 -0000 [thread overview]
Message-ID: <bug-36282-4-y1KZLjrewp@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-36282-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36282
Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-03-21
CC| |aldot at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #3 from Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> 2013-03-21 18:21:00 UTC ---
Confirmed.
Still the same with gcc version 4.7.2 (Debian 4.7.2-5):
$ cat <<EOF | gcc -x c -c - -o /dev/null
#pragma weak __pthread_initialize
extern void *memcpy(void *dest, const void *src, int n);
extern typeof(memcpy) memcpy asm("__GI_memcpy");
EOF
<stdin>:2:14: warning: conflicting types for built-in function ‘memcpy’
[enabled by default]
<stdin>:3:1: warning: asm declaration ignored due to conflict with previous
rename [-Wpragmas]
>From gcc-bugs-return-418034-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Mar 21 19:30:59 2013
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From: "jed at 59A2 dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/56683] New: Function types with different language linkages not distinct
Date: Thu, 21 Mar 2013 19:30:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56683
Bug #: 56683
Summary: Function types with different language linkages not
distinct
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jed@59A2.org
Section 7.5.1 of C++98 and C++11 states:
Two function types with different language linkages are
distinct types even if they are otherwise identical.
If the types are distinct, then surely we can overload on that basis:
extern "C" typedef int (*CPtr)(void);
extern "C++" typedef int (*CxxPtr)(void);
int Klutz(CPtr f) { return f(); }
int Klutz(CxxPtr f) { return f(); }
This compiles cleanly with Sun and Cray C++ compilers, but not with GCC, Clang,
Intel, MSVC, IBM XL, PathScale, or PGI.
$ g++ klutz.cc
klutz.cc: In function ‘int Klutz(CxxPtr)’:
klutz.cc:5:5: error: redefinition of ‘int Klutz(CxxPtr)’
klutz.cc:4:5: error: ‘int Klutz(CPtr)’ previously defined here
>From gcc-bugs-return-418036-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Mar 21 19:42:12 2013
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/2316] g++ fails to overload on language linkage
Date: Thu, 21 Mar 2013 19:42:00 -0000
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Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jed at 59A2 dot org
--- Comment #47 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-03-21 19:42:03 UTC ---
*** Bug 56683 has been marked as a duplicate of this bug. ***
next parent reply other threads:[~2013-03-21 18:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-36282-4@http.gcc.gnu.org/bugzilla/>
2013-03-21 18:21 ` aldot at gcc dot gnu.org [this message]
2013-04-11 8:00 ` [Bug middle-end/36282] [4.7/4.8/4.9 Regression] " rguenth at gcc dot gnu.org
2014-03-13 14:05 ` jakub at gcc dot gnu.org
2014-03-13 20:56 ` jakub at gcc dot gnu.org
2014-03-13 20:57 ` [Bug middle-end/36282] [4.7/4.8 " jakub at gcc dot gnu.org
2014-04-10 7:48 ` jakub at gcc dot gnu.org
2014-04-10 8:04 ` [Bug middle-end/36282] [4.7 " jakub at gcc dot gnu.org
2014-06-12 12:53 ` rguenth at gcc dot gnu.org
2014-06-12 12:53 ` rguenth at gcc dot gnu.org
2021-08-29 21:54 ` pinskia at gcc dot gnu.org
2021-12-22 2:09 ` pinskia at gcc dot gnu.org
2008-05-20 19:45 [Bug c/36282] New: " vda dot linux at googlemail dot com
2008-05-20 19:48 ` [Bug middle-end/36282] " vda dot linux at googlemail dot com
2010-02-17 6:18 ` raj dot khem at gmail dot com
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