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From: "eric.niebler at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110680] New: erroneous error "non-template type 'C' used as a template"
Date: Sun, 16 Jul 2023 00:46:00 +0000	[thread overview]
Message-ID: <bug-110680-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110680

            Bug ID: 110680
           Summary: erroneous error "non-template type 'C' used as a
                    template"
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eric.niebler at gmail dot com
  Target Milestone: ---

The following valid C++20 is rejected by gcc trunk:


  template <auto X = []{}>
  struct S {
    auto f() { return X; }
  };

  template <class T>
  using C = decltype(S().f());

  using D = C<int>;


<source>:29:16: error: non-template type 'C' used as a template
   29 | using D = C<int>;
      |                ^
Compiler returned: 1


https://godbolt.org/z/b3eY8fWTv

             reply	other threads:[~2023-07-16  0:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-16  0:46 eric.niebler at gmail dot com [this message]
2023-07-16  0:47 ` [Bug c++/110680] " pinskia at gcc dot gnu.org
2024-04-13  8:26 ` pinskia at gcc dot gnu.org

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