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* [Bug c++/101921] New: G++ cannot find a template function with lambda as default template argument
@ 2021-08-15 11:30 fchelnokov at gmail dot com
2021-08-15 11:35 ` [Bug c++/101921] G++ cannot find a template function with lambda as default template argument inside a template pinskia at gcc dot gnu.org
2021-12-20 6:12 ` pinskia at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: fchelnokov at gmail dot com @ 2021-08-15 11:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101921
Bug ID: 101921
Summary: G++ cannot find a template function with lambda as
default template argument
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: fchelnokov at gmail dot com
Target Milestone: ---
Compilation of this valid code:
```
template<class T = decltype([]{})> void bar() {}
void foo(auto) { bar(); }
```
results in error:
```
error: no matching function for call to 'bar()'
2 | void foo(auto) { bar(); }
| ~~~^~
note: candidate: 'template<class T> void bar()'
1 | template<class T = decltype([]{})> void bar() {}
| ^~~
note: template argument deduction/substitution failed:
```
Other compilers accept it: https://gcc.godbolt.org/z/9GsPo8Pnb
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/101921] G++ cannot find a template function with lambda as default template argument inside a template
2021-08-15 11:30 [Bug c++/101921] New: G++ cannot find a template function with lambda as default template argument fchelnokov at gmail dot com
@ 2021-08-15 11:35 ` pinskia at gcc dot gnu.org
2021-12-20 6:12 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-08-15 11:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101921
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2021-08-15
Summary|G++ cannot find a template |G++ cannot find a template
|function with lambda as |function with lambda as
|default template argument |default template argument
| |inside a template
Status|UNCONFIRMED |NEW
Keywords| |rejects-valid
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
if foo was not a template function, then bar would work.
Confirmed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/101921] G++ cannot find a template function with lambda as default template argument inside a template
2021-08-15 11:30 [Bug c++/101921] New: G++ cannot find a template function with lambda as default template argument fchelnokov at gmail dot com
2021-08-15 11:35 ` [Bug c++/101921] G++ cannot find a template function with lambda as default template argument inside a template pinskia at gcc dot gnu.org
@ 2021-12-20 6:12 ` pinskia at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-20 6:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101921
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 97610.
*** This bug has been marked as a duplicate of bug 97610 ***
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-12-20 6:12 UTC | newest]
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2021-08-15 11:30 [Bug c++/101921] New: G++ cannot find a template function with lambda as default template argument fchelnokov at gmail dot com
2021-08-15 11:35 ` [Bug c++/101921] G++ cannot find a template function with lambda as default template argument inside a template pinskia at gcc dot gnu.org
2021-12-20 6:12 ` pinskia at gcc dot gnu.org
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