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From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107437] nested generic lambdas fail requiring unneded
 captures
Date: Sat, 17 Dec 2022 16:39:22 +0000
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X-Bugzilla-Keywords: c++-lambda, rejects-valid
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107437

--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Reduced version of the original testcase:

struct integral_constant {
  constexpr operator int() const { return 42; }
};

template<int N>
struct A {
  static constexpr int value =3D N;
};

template<class T>
struct B {
  static constexpr int value =3D T::value;
};

template<class T>
void f(T t) {
  using alias =3D A<t>;
  [](auto) {
    B<alias> a; // { dg-bogus "'t' is not captured" }
    return a.value;
  }(0);
}

template void f(integral_constant);=