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* [Bug c++/59975] New: [C++11] Bogus "declared using local type ‘...’, is used but never defined"
@ 2014-01-28 23:38 ppluzhnikov at google dot com
2015-06-15 12:01 ` [Bug c++/59975] " paolo.carlini at oracle dot com
0 siblings, 1 reply; 2+ messages in thread
From: ppluzhnikov at google dot com @ 2014-01-28 23:38 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59975
Bug ID: 59975
Summary: [C++11] Bogus "declared using local type ‘...’, is
used but never defined"
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ppluzhnikov at google dot com
Google ref: b/12785605
Test:
template <typename T>
struct AbstractThing {
virtual ~AbstractThing() { }
virtual const T* method() const = 0;
};
template <typename T>
struct ConcreteThing : public AbstractThing<T> {
virtual ~ConcreteThing() { }
virtual const T* method() const { return 0; }
};
int main()
{
struct Foo { };
AbstractThing<Foo>* concrete = new ConcreteThing<Foo>();
int rc = (concrete->method() == 0) ? 0 : 1;
delete concrete;
return rc;
}
Using g++ (GCC) 4.9.0 20140128 (experimental)
g++ -std=c++11 t.cc
t.cc:4:20: error: 'const T* AbstractThing<T>::method() const [with T =
main()::Foo]', declared using local type 'const main()::Foo', is used but never
defined [-fpermissive]
virtual const T* method() const = 0;
^
Adding -fpermissive, the executable links and runs fine, so clearly the
never-defined method is not *actually* used.
>From gcc-bugs-return-441824-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Jan 28 23:48:35 2014
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From: "mh+gcc at glandium dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/59973] Creates a 32GB unused bss symbol with -fprofile-generate
Date: Tue, 28 Jan 2014 23:48:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY973
Mike Hommey <mh+gcc at glandium dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #2 from Mike Hommey <mh+gcc at glandium dot org> ---
Turns out this is bug 55650.
*** This bug has been marked as a duplicate of bug 55650 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/59975] [C++11] Bogus "declared using local type ‘...’, is used but never defined"
2014-01-28 23:38 [Bug c++/59975] New: [C++11] Bogus "declared using local type ‘...’, is used but never defined" ppluzhnikov at google dot com
@ 2015-06-15 12:01 ` paolo.carlini at oracle dot com
0 siblings, 0 replies; 2+ messages in thread
From: paolo.carlini at oracle dot com @ 2015-06-15 12:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59975
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Dup.
*** This bug has been marked as a duplicate of bug 51048 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2015-06-15 12:01 UTC | newest]
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2014-01-28 23:38 [Bug c++/59975] New: [C++11] Bogus "declared using local type ‘...’, is used but never defined" ppluzhnikov at google dot com
2015-06-15 12:01 ` [Bug c++/59975] " paolo.carlini at oracle dot com
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