[Bug c++/113544] New: [14 Regression] bogus incomplete type error with dependent data member in local class in generic lambda since r14-278

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113544

            Bug ID: 113544
           Summary: [14 Regression] bogus incomplete type error with
                    dependent data member in local class in generic lambda
                    since r14-278
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ppalka at gcc dot gnu.org
  Target Milestone: ---

template<class T>
void f() {
  [](auto parm) {
    struct type {
      decltype(parm) x;
    };
  };
}

template void f<int>();

<stdin>: In instantiation of ‘struct f<int>()::<lambda(auto:1)>::type’:
<stdin>:6:5:   required from ‘void f() [with T = int]’
<stdin>:10:22:   required from here
<stdin>:5:22: error: ‘f()::<lambda(auto:1)>::type::x’ has incomplete type
<stdin>:5:22: error: invalid use of dependent type ‘decltype (parm)’