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* [Bug c++/103740] New: A function template declaration with a template-parameter in the last that has no default argument or can be deduced shall be ill-formed
@ 2021-12-16 3:13 xmh970252187 at gmail dot com
2021-12-16 4:00 ` [Bug c++/103740] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: xmh970252187 at gmail dot com @ 2021-12-16 3:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103740
Bug ID: 103740
Summary: A function template declaration with a
template-parameter in the last that has no default
argument or can be deduced shall be ill-formed
Product: gcc
Version: 11.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: xmh970252187 at gmail dot com
Target Milestone: ---
template<class... T, class U> void g() { }
This template declaration should be ill-formed since it violates [temp.param]
p14
A template parameter pack of a function template shall not be followed by
another template parameter unless that template parameter can be deduced from
the parameter-type-list ([dcl.fct]) of the function template or has a default
argument ([temp.deduct]).
Template parameter `U` satisfies none of them, hence the declaration should be
ill-formed. It is also a formal example that the comment says it is an error.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/103740] A function template declaration with a template-parameter in the last that has no default argument or can be deduced shall be ill-formed
2021-12-16 3:13 [Bug c++/103740] New: A function template declaration with a template-parameter in the last that has no default argument or can be deduced shall be ill-formed xmh970252187 at gmail dot com
@ 2021-12-16 4:00 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-12-16 4:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103740
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 69623.
*** This bug has been marked as a duplicate of bug 69623 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-12-16 3:13 [Bug c++/103740] New: A function template declaration with a template-parameter in the last that has no default argument or can be deduced shall be ill-formed xmh970252187 at gmail dot com
2021-12-16 4:00 ` [Bug c++/103740] " pinskia at gcc dot gnu.org
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