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From: "unlvsur at live dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/102499] [12 Regression] Noexcept not matching for
 std::filesystem::path. Compilation fails for clang
Date: Mon, 27 Sep 2021 23:24:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102499

--- Comment #2 from cqwrteur <unlvsur at live dot com> ---
(In reply to cqwrteur from comment #1)
> noexcept is missing for begin() end(). That leads to problem that breaks
> clang.
>=20
> I manually modify the header file and it works.

https://github.com/gcc-mirror/gcc/commit/42eff613d0c10f88dc7a44b14981876401=
a09981#diff-8cb9eb19d74e89b3acffd1a56c8bf7ca102f342b3b18134bba7729e343bdbce9

It looks like this cleanup patch has some issues. Probably need a new test =
file
for clang.=