https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
It is still UB, the b = &h; happens inside of the scope, then the scope is left
and on a next iteration rentered again and *b dereferenced.
I don't think C/C++ have anything that would special case {}s around body of
the loop, though in most versions of the languages there is an extra for scope
around it.

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