Method construct

src/include/cpp-btree/btree.h:236–240

  static const value_type& element(const slot_type* slot) { return slot->value; }
  template <class... Args>
  static void construct(Alloc *alloc, slot_type *slot, Args &&... args) {
    std::allocator_traits<Alloc>::construct(*alloc,
                                            &slot->mutable_value,
                                            std::forward<Args>(args)...);
  }
  // Construct this slot by moving from another slot.
  static void construct(Alloc* alloc, slot_type* slot, slot_type* other) {
    emplace(slot);