https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68311
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- In a list of initializers that's not a comma operator. So I think that's UB given the evaluations of the initialization list expressions are indeterminately sequenced.