Function ResizePoolBuffer

cpp/src/arrow/memory_pool.cc:1002–1006

// a PoolBuffer.
template <typename BufferPtr, typename PoolBufferPtr>
inline Result<BufferPtr> ResizePoolBuffer(PoolBufferPtr&& buffer, const int64_t size) {
  RETURN_NOT_OK(buffer->Resize(size));
  buffer->ZeroPadding();
  return std::move(buffer);
}

}  // namespace