Ok, turns out I was mixing up "flexible array member" with "variable-length array". Slices can be used on the stack like a VLA as well, though, with the unstabl

Ok, turns out I was mixing up "flexible array member" with "variable-length array". Slices can be used on the stack like a VLA as well, though, with the unstable "unsized_locals" feature. This feature is controversial, however, because of the risk of unintentional stack blowup..