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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/109305] Allocator copy in basic_string::operator=
Date: Tue, 28 Mar 2023 16:21:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109305

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
For your reproducer, the allocator is std::allocator<char> which is an empty
class and copying is a no-op. There is no efficiency concern whatsoever.=