jorisvandenbossche commented on code in PR #39783:
URL: https://github.com/apache/arrow/pull/39783#discussion_r1466504857


##########
cpp/src/arrow/c/bridge.cc:
##########
@@ -587,7 +587,8 @@ struct ArrayExporter {
     export_.buffers_.resize(n_buffers);
     std::transform(buffers_begin, data->buffers.end(), 
export_.buffers_.begin(),
                    [](const std::shared_ptr<Buffer>& buffer) -> const void* {
-                     return buffer ? buffer->data() : nullptr;
+                     return buffer ? reinterpret_cast<const 
void*>(buffer->address())

Review Comment:
   At the moment, this `ArrayExporter` is not aware of whether the ArrowArray 
came from a plain C Data array or a C Device array. 
   
   I could add that as a boolean flag to the class so we can distinguish based 
on that here?



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