* [Bug c++/34810] accepts invalid dependent(?) type in template class method
[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
@ 2021-08-11 21:51 ` pinskia at gcc dot gnu.org
2021-12-07 1:48 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-08-11 21:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2008-01-16 13:26:36 |2021-8-11
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
clang does a pedwarning:
<source>:7:22: error: ISO C++ specifies that qualified reference to 'Foo' is a
constructor name rather than a type in this context, despite preceding
'typename' keyword [-Werror,-Winjected-class-name]
typename Foo<T>::Foo ();
^
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
2021-08-11 21:51 ` [Bug c++/34810] accepts invalid dependent(?) type in template class method pinskia at gcc dot gnu.org
@ 2021-12-07 1:48 ` pinskia at gcc dot gnu.org
2021-12-07 1:49 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 1:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |johelegp at gmail dot com
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 103564 has been marked as a duplicate of this bug. ***
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
2021-08-11 21:51 ` [Bug c++/34810] accepts invalid dependent(?) type in template class method pinskia at gcc dot gnu.org
2021-12-07 1:48 ` pinskia at gcc dot gnu.org
@ 2021-12-07 1:49 ` pinskia at gcc dot gnu.org
2021-12-07 1:51 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 1:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ahuszagh at gmail dot com
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 82347 has been marked as a duplicate of this bug. ***
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2021-12-07 1:49 ` pinskia at gcc dot gnu.org
@ 2021-12-07 1:51 ` pinskia at gcc dot gnu.org
2021-12-07 1:57 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 1:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |vgheorgh at gmail dot com
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 66350 has been marked as a duplicate of this bug. ***
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
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2021-12-07 1:51 ` pinskia at gcc dot gnu.org
@ 2021-12-07 1:57 ` pinskia at gcc dot gnu.org
2021-12-07 2:03 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 1:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=11764
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Related to the older bug 11764 (which is fixed the case without typename I
think).
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2021-12-07 1:57 ` pinskia at gcc dot gnu.org
@ 2021-12-07 2:03 ` pinskia at gcc dot gnu.org
2021-12-07 2:04 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 2:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
DR 147 is definitely the defect report here.
Reading the new text still gives me questions about the case if typename is
used:
If the nested-name-specifier nominates a class C, and the name specified after
the nested-name-specifier, when looked up in C, is the injected-class-name of C
(clause Clause 11 [class]), the name is instead considered to name the
constructor of class C. Such a constructor name shall only be used in the
declarator-id of a constructor definition that appears outside of the class
definition.
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2021-12-07 2:03 ` pinskia at gcc dot gnu.org
@ 2021-12-07 2:04 ` pinskia at gcc dot gnu.org
2021-12-07 2:22 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 2:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Host|i386-portbld-freebsd6.2 |
Build|i386-portbld-freebsd6.2 |
Target|i386-portbld-freebsd6.2 |
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note ICC and MSVC both accept this testcase (and the duplicated testcases)
while clang is rejects it.
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2021-12-07 2:04 ` pinskia at gcc dot gnu.org
@ 2021-12-07 2:22 ` pinskia at gcc dot gnu.org
2021-12-07 2:55 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 2:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Oh this:
http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#318
In a lookup in which the constructor is an acceptable lookup result, if the
nested-name-specifier nominates a class C and the name specified after the
nested-name-specifier, when looked up in C, is the injected class name of C
(clause Clause 11 [class]), the name is instead considered to name the
constructor of class C. [Note: For example, the constructor is not an
acceptable lookup result in an elaborated type specifier so the constructor
would not be used in place of the injected class name.]
So the question becomes is typename is enough here.
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
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2021-12-07 2:22 ` pinskia at gcc dot gnu.org
@ 2021-12-07 2:55 ` pinskia at gcc dot gnu.org
2021-12-07 3:31 ` [Bug c++/34810] [DR1310] accepts invalid dependent " pinskia at gcc dot gnu.org
2021-12-09 5:59 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 2:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Someone who has better understanding of the C++ standard should answer the
question if this is valid or not because I don't understand all of the specific
rules rules which are in play here. Especially when there has been some defect
reports in this area before even.
The question is:
class B { };
class A: public B {
A::B ab; // B is the inherited injected B
};
typename A::A a;
vs:
class B { };
class A: public B {
A::B ab; // B is the inherited injected B
};
struct A::A a;
CWG 318 clearifies the struct case but I don't see why typename would be
handled here any different from struct case.
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
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2021-12-07 2:55 ` pinskia at gcc dot gnu.org
@ 2021-12-07 3:31 ` pinskia at gcc dot gnu.org
2021-12-09 5:59 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2021-12-07 3:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|accepts invalid |[DR1310] accepts invalid
|dependent(?) type in |dependent type in template
|template class method |class method
Blocks| |94404
Alias| |cwg1310
--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Found what changed clang to start rejecting it:
http://wg21.link/cwg1310
[Moved to DR at the April, 2013 meeting.]
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94404
[Bug 94404] [meta-bug] C++ core issues
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[not found] <bug-34810-4@http.gcc.gnu.org/bugzilla/>
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2021-12-07 3:31 ` [Bug c++/34810] [DR1310] accepts invalid dependent " pinskia at gcc dot gnu.org
@ 2021-12-09 5:59 ` pinskia at gcc dot gnu.org
10 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-09 5:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34810
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |barry.revzin at gmail dot com
--- Comment #13 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 86818 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 13+ messages in thread