[Bug c++/111272] [13/14 Regression] Truncated error messages with -std=c++23 and -std=c++26

[de34 at live dot cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111272

Jiang An <de34 at live dot cn> changed:

           What    |Removed                     |Added
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                 CC|                            |de34 at live dot cn

--- Comment #3 from Jiang An <de34 at live dot cn> ---
Due to P2448R2 (https://wg21.link/p2448r2), the posted example is totally valid
since C++23.