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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/108242] [10/11/12/13 Regression] '__FUNCTION__' was not
 declared when used inside a generic (templated) lambda declared inside a
 template function
Date: Fri, 03 Feb 2023 18:23:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108242

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Sorry, above doesn't compile, but
template<class F>
void my_fun()
{
  auto fun =3D [&](auto res) {
    static constexpr char const* fun_name =3D __PRETTY_FUNCTION__;
    struct
    {
      constexpr const char* operator()() const { constexpr char const*
fun_name2 =3D __PRETTY_FUNCTION__; return fun_name; };
    } t;
    t();
  };

  fun(12);
}


int main() {
  my_fun<int>();
}

ICEs and compiles fine with G++ 11.x.=