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From: "fchelnokov at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/110619] Dangling pointer returned from constexpr function
 converts in nullptr
Date: Mon, 07 Aug 2023 07:41:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110619

--- Comment #8 from Fedor Chelnokov <fchelnokov at gmail dot com> ---
Please note that GCC 13 also accepts invalid program (because dangling poin=
ters
were converted in nullptr):

constexpr auto f(int a) {
    return &a;
}

constexpr auto g(int b) {
    return &b;
}

static_assert(f(1) <=3D g(2));

This program must be rejected because of relational comparison of unrelated
pointers as Clang and MSVC do, online demo: https://gcc.godbolt.org/z/q5z3G=
vehe
And your patch fixes it as well, thanks.=