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* [Bug c++/100589] New: function with trailing return type must specify return type 'auto' instead of 'concept auto'
@ 2021-05-13 15:09 stanislaw.w.morawski at gmail dot com
  2021-05-14  9:26 ` [Bug c++/100589] " redi at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: stanislaw.w.morawski at gmail dot com @ 2021-05-13 15:09 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100589

            Bug ID: 100589
           Summary: function with trailing return type must specify return
                    type 'auto' instead of 'concept auto'
           Product: gcc
           Version: 11.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: stanislaw.w.morawski at gmail dot com
  Target Milestone: ---

https://godbolt.org/z/jnahsxrnq

Behaviour:
Concept is being ignored when used with auto keyword preceding function with
trailing return type.

Expected Behaviour:
Syntax error: improper use of concept.

^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug c++/100589] function with trailing return type must specify return type 'auto' instead of 'concept auto'
  2021-05-13 15:09 [Bug c++/100589] New: function with trailing return type must specify return type 'auto' instead of 'concept auto' stanislaw.w.morawski at gmail dot com
@ 2021-05-14  9:26 ` redi at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: redi at gcc dot gnu.org @ 2021-05-14  9:26 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100589

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-05-14
           Keywords|                            |accepts-invalid
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Please provide the testcase here, not just via a URL, as requested by
https://gcc.gnu.org/bugs/.

Here's the code, which is accepted with -std=c++20 but shouldn't be:

template<class T>
concept false_concept = false;

false_concept auto f() -> int;

^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-05-14  9:26 UTC | newest]

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2021-05-13 15:09 [Bug c++/100589] New: function with trailing return type must specify return type 'auto' instead of 'concept auto' stanislaw.w.morawski at gmail dot com
2021-05-14  9:26 ` [Bug c++/100589] " redi at gcc dot gnu.org

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