https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59324
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |manu at gcc dot gnu.org
--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Clang also thinks this is UB:
warning: multiple unsequenced modifications to 'b' [-Wunsequenced]
