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* [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator
@ 2012-08-07 18:52 mib.bugzilla at gmail dot com
2012-08-07 18:57 ` [Bug c++/54196] " mib.bugzilla at gmail dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: mib.bugzilla at gmail dot com @ 2012-08-07 18:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
Bug #: 54196
Summary: gcc doesn't find incompatible exception specification
for operator
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: mib.bugzilla@gmail.com
It look like g++ emit error for regular functions but not for new. Here is the
example:
For following test case g++ emit error for foo but not for operator new.
class bad_alloc
{
public:
bad_alloc() throw() { }
};
struct nothrow_t { };
extern const nothrow_t nothrow;
typedef unsigned long size_t;
//void* operator new(size_t) noexcept;
void* operator new(size_t, const nothrow_t&);
void foo();
int main(int argc, char *argv[])
{
void* (*pf)(size_t) throw (bad_alloc) = operator new;
void* (*pf1)() throw (bad_alloc) = foo;
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54196] gcc doesn't find incompatible exception specification for operator
2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
@ 2012-08-07 18:57 ` mib.bugzilla at gmail dot com
2012-08-07 20:55 ` redi at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mib.bugzilla at gmail dot com @ 2012-08-07 18:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
--- Comment #1 from mib.bugzilla at gmail dot com 2012-08-07 18:57:28 UTC ---
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/site/spt/rdrive/ref/gcc/4.7.0/efi2/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/myuser/d/gcc_src/gcc-4.7.0/configure
--prefix=/rdrive/ref/gcc/4.7.0/efi2 --enable-languages=c,c++,objc,fortran
--disable-multilib --enable-bootstrap --target=x86_64-unknown-linux-gnu
--disable-bootstrap --enable-decimal-float
--with-gmp=/home/myuser/d/gcc_src/lib/efi2
--with-mpfr=/home/myuser/d/gcc_src/lib/efi2
--with-mpc=/home/myuser/d/gcc_src/lib/efi2
Thread model: posix
gcc version 4.7.0 (GCC)
g++ -c fubar.cpp
fubar.cpp: In function âint main(int, char**)â:
fubar.cpp:16:40: error: invalid conversion from âvoid (*)()â to âvoid* (*)()â
[-fpermissive]
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54196] gcc doesn't find incompatible exception specification for operator
2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
2012-08-07 18:57 ` [Bug c++/54196] " mib.bugzilla at gmail dot com
@ 2012-08-07 20:55 ` redi at gcc dot gnu.org
2021-08-09 19:05 ` [Bug c++/54196] gcc doesn't find incompatible exception specification pinskia at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2012-08-07 20:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-08-07 20:55:36 UTC ---
N.B. there are various overloads of operator new that are implicitly declared
in every translation unit, including (in C++03)
void* operator new(std::size_t) throw(std::bad_alloc)
which would be ok except for the std:: qualification
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54196] gcc doesn't find incompatible exception specification
2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
2012-08-07 18:57 ` [Bug c++/54196] " mib.bugzilla at gmail dot com
2012-08-07 20:55 ` redi at gcc dot gnu.org
@ 2021-08-09 19:05 ` pinskia at gcc dot gnu.org
2021-08-09 19:06 ` pinskia at gcc dot gnu.org
2021-08-09 19:08 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-09 19:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |accepts-invalid
Summary|gcc doesn't find |gcc doesn't find
|incompatible exception |incompatible exception
|specification for operator |specification
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Here is the testcase really, it has nothing to do with operators but the
problem is really we don't
struct a{a()throw(){}};
struct b{b()throw(){}};
void *foo() throw(a);
int main(int argc, char *argv[])
{
void* (*pf1)() throw (b) = foo;
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54196] gcc doesn't find incompatible exception specification
2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
` (2 preceding siblings ...)
2021-08-09 19:05 ` [Bug c++/54196] gcc doesn't find incompatible exception specification pinskia at gcc dot gnu.org
@ 2021-08-09 19:06 ` pinskia at gcc dot gnu.org
2021-08-09 19:08 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-09 19:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2021-08-09
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
It has nothing to do with operators but the problem is really we don't check
what is inside the exception specification.
Now do we care since exception specification is removed from C++20?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/54196] gcc doesn't find incompatible exception specification
2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
` (3 preceding siblings ...)
2021-08-09 19:06 ` pinskia at gcc dot gnu.org
@ 2021-08-09 19:08 ` pinskia at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-09 19:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54196
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|NEW |RESOLVED
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh this is just PR 12255
*** This bug has been marked as a duplicate of bug 12255 ***
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-08-09 19:08 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2012-08-07 18:52 [Bug c++/54196] New: gcc doesn't find incompatible exception specification for operator mib.bugzilla at gmail dot com
2012-08-07 18:57 ` [Bug c++/54196] " mib.bugzilla at gmail dot com
2012-08-07 20:55 ` redi at gcc dot gnu.org
2021-08-09 19:05 ` [Bug c++/54196] gcc doesn't find incompatible exception specification pinskia at gcc dot gnu.org
2021-08-09 19:06 ` pinskia at gcc dot gnu.org
2021-08-09 19:08 ` pinskia at gcc dot gnu.org
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