From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 0D7DE3858D35; Thu, 29 Jun 2023 14:39:01 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0D7DE3858D35
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1688049541;
	bh=zVuhTMtg1rmIauN+8uLVSWYxpmv5KFBppNEALDjfDQ0=;
	h=From:To:Subject:Date:From;
	b=AhGHHvqUbeq0IRK3l6eXU4EL9LD5FcVHSzeE0hTlRuBddpewDS5JLCytp5Ibhj4NK
	 cYATGB5TdkeKsMSj5KWjyD/uLI8kCxEpdLyyHeeH1LRKq8UaZrICiT8OyzkXkCxNDf
	 VnYE22lGjSEK0l2JUSvl/yS55wxLcuVB5djgejA4=
From: "hewillk at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110486] New: gcc rejects constant expression with consteval
 lambda
Date: Thu, 29 Jun 2023 14:39:00 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: hewillk at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-110486-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110486

            Bug ID: 110486
           Summary: gcc rejects constant expression with consteval lambda
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

GCC rejects the following, while MSVC and Clang compile fine.
Not sure if the code is well-formed.

#include <vector>

constexpr auto g =3D []() consteval {
  std::vector<int> v;
  v.push_back(0);
  return v;
};

constexpr auto l =3D [] {
  constexpr auto sz =3D g().size();
  return 0;
}();

https://godbolt.org/z/WrTx3bn3r=