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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++/113200] std::char_traits<char>::move is not constexpr
 when the argument is a string literal
Date: Wed, 03 Jan 2024 12:57:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113200

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Why does GCC accept this reduced version, which is invalid for the same rea=
son
as the original?

#include <string>

constexpr int N =3D 5;
struct S
{
    char data_[ N ];

    constexpr S( char const* p )
    {
        std::char_traits<char>::move( data_, p, N );
    }
};

constexpr S s( "test" );


Clang rejects it the same way.=