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apply fix for UBSan "object-size" errors #1

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3 changes: 2 additions & 1 deletion immer/detail/hamts/node.hpp
Original file line number Diff line number Diff line change
Expand Up @@ -99,8 +99,9 @@ struct node

constexpr static std::size_t sizeof_inner_n(count_t count)
{
return immer_offsetof(impl_t, d.data.inner.buffer) +
auto const inner_size = immer_offsetof(impl_t, d.data.inner.buffer) +
sizeof(inner_t::buffer) * count;
return std::max(sizeof(node_t), inner_size);
}

#if IMMER_TAGGED_NODE
Expand Down