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From: "iamsupermouse at mail dot ru" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/103811] New: [c++20] ICE when a lambda is used as a template argument of another lambda's function parameter
Date: Wed, 22 Dec 2021 21:26:18 +0000	[thread overview]
Message-ID: <bug-103811-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103811

            Bug ID: 103811
           Summary: [c++20] ICE when a lambda is used as a template
                    argument of another lambda's function parameter
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: iamsupermouse at mail dot ru
  Target Milestone: ---

Following code causes an ICE (segfault):

    template <auto> struct A {};
    int main() {[](A<[]{}>){};}

Tested on https://godbolt.org/ , GCC trunk 12.0.0 20211222.

The same thing happens if I move the nested lambda to A's default argument:

    template <auto = []{}> struct A {};
    int main() {[](A<>){};}

MSVC also ICEs on the second snippet, but not on the first.

             reply	other threads:[~2021-12-22 21:26 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-22 21:26 iamsupermouse at mail dot ru [this message]
2022-01-06  8:06 ` [Bug c++/103811] " pinskia at gcc dot gnu.org

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