Function TypedReserve

cpp/src/arrow/buffer.h:520–522

  template <class T>
  Status TypedReserve(const int64_t new_nb_elements) {
    return Reserve(sizeof(T) * new_nb_elements);
  }

 protected:
  ResizableBuffer(uint8_t* data, int64_t size) : MutableBuffer(data, size) {}