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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++/94066] [8/9/10 Regression] ICE (starting/ending union
 member lifetime) in cxx_eval_bare_aggregate, at cp/constexpr.c:3790 since
 r6-7592
Date: Mon, 09 Mar 2020 14:30:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94066

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The standard seems to say a union member becomes active when the constructor
finishes, not when it starts, so what wording prevents changing the active
member during the construction?=