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* [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete
@ 2011-11-09 2:15 jarrydb at cse dot unsw.edu.au
2011-11-09 2:32 ` [Bug c++/51045] " jarrydb at cse dot unsw.edu.au
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: jarrydb at cse dot unsw.edu.au @ 2011-11-09 2:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
Bug #: 51045
Summary: [C++0x] erroneous zero as null pointer constant
warning at delete
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jarrydb@cse.unsw.edu.au
Host: x86_64-unknown-linux-gnu
Target: x86_64-unknown-linux-gnu
Build: x86_64-unknown-linux-gnu
The attached code erroneously gives me a warning about using zero as a null
pointer constant where there is no zero at all. The line it points to is a
delete statement.
g++ -std=gnu++11 zeronull.cpp -c -Wzero-as-null-pointer-constant
zeronull.cpp: In instantiation of ‘A<T>::~A() [with T = Op]’:
zeronull.cpp:12:7: required from here
zeronull.cpp:7:5: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/jarrydb/current/soft/install-latest/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/jarrydb/current/soft/src/gcc-git/configure
--prefix=/home/jarrydb/current/soft/install-latest --disable-multilib
--enable-languages=c,c++ : (reconfigured)
/home/jarrydb/current/soft/src/gcc-git/configure
--prefix=/home/jarrydb/current/soft/install-latest --disable-multilib
--enable-languages=c,c++
Thread model: posix
gcc version 4.7.0 20111108 (experimental) (GCC)
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] [C++0x] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
@ 2011-11-09 2:32 ` jarrydb at cse dot unsw.edu.au
2011-11-09 10:43 ` paolo.carlini at oracle dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jarrydb at cse dot unsw.edu.au @ 2011-11-09 2:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
--- Comment #1 from Jarryd Beck <jarrydb at cse dot unsw.edu.au> 2011-11-09 02:15:34 UTC ---
Created attachment 25762
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25762
erroneous zero as null pointer warning
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] [C++0x] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
2011-11-09 2:32 ` [Bug c++/51045] " jarrydb at cse dot unsw.edu.au
@ 2011-11-09 10:43 ` paolo.carlini at oracle dot com
2011-11-09 11:08 ` paolo.carlini at oracle dot com
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-11-09 10:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2011-11-09
AssignedTo|unassigned at gcc dot |paolo.carlini at oracle dot
|gnu.org |com
Ever Confirmed|0 |1
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-09 10:41:58 UTC ---
Seems trivial, an integer_zero_node in build_dtor_call.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] [C++0x] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
2011-11-09 2:32 ` [Bug c++/51045] " jarrydb at cse dot unsw.edu.au
2011-11-09 10:43 ` paolo.carlini at oracle dot com
@ 2011-11-09 11:08 ` paolo.carlini at oracle dot com
2011-11-09 17:23 ` [Bug c++/51045] " paolo at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-11-09 11:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
` (2 preceding siblings ...)
2011-11-09 11:08 ` paolo.carlini at oracle dot com
@ 2011-11-09 17:23 ` paolo at gcc dot gnu.org
2011-11-09 17:25 ` paolo at gcc dot gnu.org
2011-11-09 17:27 ` paolo.carlini at oracle dot com
5 siblings, 0 replies; 7+ messages in thread
From: paolo at gcc dot gnu.org @ 2011-11-09 17:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
--- Comment #3 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-11-09 17:21:23 UTC ---
Author: paolo
Date: Wed Nov 9 17:21:19 2011
New Revision: 181214
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181214
Log:
/cp
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51045
* init.c (build_new_1, build_vec_delete_1, build_delete):
Use nullptr_node.
/testsuite
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51045
* g++.dg/warn/Wzero-as-null-pointer-constant-2.C: New.
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
* doc/invoke.texi ([Option Summary, C++ Language Options]):
Add -Wzero-as-null-pointer-constant.
Added:
trunk/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-2.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/init.c
trunk/gcc/doc/invoke.texi
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
` (3 preceding siblings ...)
2011-11-09 17:23 ` [Bug c++/51045] " paolo at gcc dot gnu.org
@ 2011-11-09 17:25 ` paolo at gcc dot gnu.org
2011-11-09 17:27 ` paolo.carlini at oracle dot com
5 siblings, 0 replies; 7+ messages in thread
From: paolo at gcc dot gnu.org @ 2011-11-09 17:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
--- Comment #4 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2011-11-09 17:22:25 UTC ---
Author: paolo
Date: Wed Nov 9 17:22:22 2011
New Revision: 181215
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181215
Log:
/cp
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51045
* init.c (build_new_1, build_vec_delete_1, build_delete):
Use nullptr_node.
/testsuite
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51045
* g++.dg/warn/Wzero-as-null-pointer-constant-2.C: New.
2011-11-09 Paolo Carlini <paolo.carlini@oracle.com>
* doc/invoke.texi ([Option Summary, C++ Language Options]):
Add -Wzero-as-null-pointer-constant.
Modified:
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/51045] erroneous zero as null pointer constant warning at delete
2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
` (4 preceding siblings ...)
2011-11-09 17:25 ` paolo at gcc dot gnu.org
@ 2011-11-09 17:27 ` paolo.carlini at oracle dot com
5 siblings, 0 replies; 7+ messages in thread
From: paolo.carlini at oracle dot com @ 2011-11-09 17:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51045
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-11-09 17:23:02 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2011-11-09 2:15 [Bug c++/51045] New: [C++0x] erroneous zero as null pointer constant warning at delete jarrydb at cse dot unsw.edu.au
2011-11-09 2:32 ` [Bug c++/51045] " jarrydb at cse dot unsw.edu.au
2011-11-09 10:43 ` paolo.carlini at oracle dot com
2011-11-09 11:08 ` paolo.carlini at oracle dot com
2011-11-09 17:23 ` [Bug c++/51045] " paolo at gcc dot gnu.org
2011-11-09 17:25 ` paolo at gcc dot gnu.org
2011-11-09 17:27 ` paolo.carlini at oracle dot com
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