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* [Bug c++/95010] New: Recursive function template with function parameter of type decltype([]{}) is rejected
@ 2020-05-08 14:39 ppalka at gcc dot gnu.org
2023-01-19 6:35 ` [Bug c++/95010] " pinskia at gcc dot gnu.org
2024-04-13 7:38 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: ppalka at gcc dot gnu.org @ 2020-05-08 14:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95010
Bug ID: 95010
Summary: Recursive function template with function parameter of
type decltype([]{}) is rejected
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ppalka at gcc dot gnu.org
Target Milestone: ---
$ cat testcase.C
template<typename T>
void foo(decltype([]{}) *s) {
if (0)
foo<T>(s);
}
void bar() {
foo<int>(nullptr);
}
$ g++ -std=c++2a testcase.C
testcase.C: In instantiation of ‘void foo(decltype (<lambda>)*) [with T = int;
decltype (<lambda>) = foo<int>::<lambda()>]’:
testcase.C:8:19: required from here
testcase.C:4:12: error: cannot convert ‘<lambda()>*’ to ‘<lambda()>*’
4 | foo<T>(s);
| ^
| |
| <lambda()>*
testcase.C:2:26: note: initializing argument 1 of ‘void foo(decltype
(<lambda>)*) [with T = int; decltype (<lambda>) = foo<int>::<lambda()>]’
2 | void foo(decltype([]{}) *s) {
| ~~~~~~~~~~~~~~~~^
We should also accept:
template<typename T>
void foo(decltype([]{}) *s, decltype(s) q) {
foo<T>(q, s);
}
void bar() {
foo<int>(nullptr, nullptr);
}
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/95010] Recursive function template with function parameter of type decltype([]{}) is rejected
2020-05-08 14:39 [Bug c++/95010] New: Recursive function template with function parameter of type decltype([]{}) is rejected ppalka at gcc dot gnu.org
@ 2023-01-19 6:35 ` pinskia at gcc dot gnu.org
2024-04-13 7:38 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-01-19 6:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95010
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-01-19
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/95010] Recursive function template with function parameter of type decltype([]{}) is rejected
2020-05-08 14:39 [Bug c++/95010] New: Recursive function template with function parameter of type decltype([]{}) is rejected ppalka at gcc dot gnu.org
2023-01-19 6:35 ` [Bug c++/95010] " pinskia at gcc dot gnu.org
@ 2024-04-13 7:38 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-04-13 7:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95010
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Hmm, EDG, clang and MSVC (and GCC) all reject both testcases with the very
similar error message.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-04-13 7:38 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-08 14:39 [Bug c++/95010] New: Recursive function template with function parameter of type decltype([]{}) is rejected ppalka at gcc dot gnu.org
2023-01-19 6:35 ` [Bug c++/95010] " pinskia at gcc dot gnu.org
2024-04-13 7:38 ` pinskia at gcc dot gnu.org
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