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* [Bug c++/110681] New: bogus warning -Wreturn-type for lambda in tparam list
@ 2023-07-16 0:53 eric.niebler at gmail dot com
2023-07-16 0:55 ` [Bug c++/110681] " pinskia at gcc dot gnu.org
2024-04-13 8:27 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: eric.niebler at gmail dot com @ 2023-07-16 0:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110681
Bug ID: 110681
Summary: bogus warning -Wreturn-type for lambda in tparam list
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eric.niebler at gmail dot com
Target Milestone: ---
The following valid C++20 code causes gcc trunk to erroneously warn about a
missing return statement.
template <auto X = []{}>
constexpr auto y = X;
template <class T>
using C = decltype(y<>);
using D = C<int>;
<source>: In substitution of 'template<class T> using C = decltype (y<<lambda>
>) [with T = int]':
<source>:27:18: required from here
<source>:21:22: warning: no return statement in function returning non-void
[-Wreturn-type]
21 | template <auto X = []{}>
| ^~~~
Compiler returned: 0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/110681] bogus warning -Wreturn-type for lambda in tparam list
2023-07-16 0:53 [Bug c++/110681] New: bogus warning -Wreturn-type for lambda in tparam list eric.niebler at gmail dot com
@ 2023-07-16 0:55 ` pinskia at gcc dot gnu.org
2024-04-13 8:27 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-07-16 0:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110681
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |c++-lambda
Blocks| |107430
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Lambda inside a decltype definitely one place where GCC is known to be broken.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107430
[Bug 107430] [meta-bug] lambda in decltype
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/110681] bogus warning -Wreturn-type for lambda in tparam list
2023-07-16 0:53 [Bug c++/110681] New: bogus warning -Wreturn-type for lambda in tparam list eric.niebler at gmail dot com
2023-07-16 0:55 ` [Bug c++/110681] " pinskia at gcc dot gnu.org
@ 2024-04-13 8:27 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-04-13 8:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110681
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed on the trunk for GCC 14 by the recent lambda template patches.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-04-13 8:27 UTC | newest]
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2023-07-16 0:53 [Bug c++/110681] New: bogus warning -Wreturn-type for lambda in tparam list eric.niebler at gmail dot com
2023-07-16 0:55 ` [Bug c++/110681] " pinskia at gcc dot gnu.org
2024-04-13 8:27 ` pinskia at gcc dot gnu.org
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