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* [Bug c++/113810] New: A lambda with this auto style that captures this in a member function cannot use this pointer
@ 2024-02-07 14:44 hewillk at gmail dot com
  2024-02-07 14:56 ` [Bug c++/113810] " ppalka at gcc dot gnu.org
  0 siblings, 1 reply; 2+ messages in thread
From: hewillk at gmail dot com @ 2024-02-07 14:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113810

            Bug ID: 113810
           Summary: A lambda with this auto style that captures this in a
                    member function cannot use this pointer
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

struct S { 
  int i = 42;
  constexpr auto f() { 
    return [this](this auto) { 
      return this->i;
    }(); 
  }; 
};

int main() {
  return S().f();
}

https://godbolt.org/z/rMqaT9r9E

GCC rejects the above with:

<source>:5:14: error: invalid use of 'this' in non-member function
    5 |       return this->i;
      |              ^~~~

But lambda captures this pointer so it should be usable.

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug c++/113810] A lambda with this auto style that captures this in a member function cannot use this pointer
  2024-02-07 14:44 [Bug c++/113810] New: A lambda with this auto style that captures this in a member function cannot use this pointer hewillk at gmail dot com
@ 2024-02-07 14:56 ` ppalka at gcc dot gnu.org
  0 siblings, 0 replies; 2+ messages in thread
From: ppalka at gcc dot gnu.org @ 2024-02-07 14:56 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113810

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |ppalka at gcc dot gnu.org
         Resolution|---                         |DUPLICATE

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
dup

*** This bug has been marked as a duplicate of bug 113563 ***

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2024-02-07 14:56 UTC | newest]

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2024-02-07 14:44 [Bug c++/113810] New: A lambda with this auto style that captures this in a member function cannot use this pointer hewillk at gmail dot com
2024-02-07 14:56 ` [Bug c++/113810] " ppalka at gcc dot gnu.org

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