[Bug libstdc++/69944] ctype::widen issue, use self-define do_widen, get unexpected result.

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69944

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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   Last reconfirmed|                            |2026-01-09
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1