sgilmore10 commented on code in PR #37015:
URL: https://github.com/apache/arrow/pull/37015#discussion_r1284719313
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matlab/src/cpp/arrow/matlab/tabular/proxy/record_batch.cc:
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@@ -18,17 +18,42 @@
#include "libmexclass/proxy/ProxyManager.h"
#include "arrow/matlab/array/proxy/array.h"
+#include "arrow/matlab/array/proxy/wrap.h"
+
#include "arrow/matlab/error/error.h"
#include "arrow/matlab/tabular/proxy/record_batch.h"
#include "arrow/type.h"
#include "arrow/util/utf8.h"
+#include "libmexclass/proxy/ProxyManager.h"
+#include "libmexclass/error/Error.h"
+
+#include <sstream>
+
namespace arrow::matlab::tabular::proxy {
+ namespace {
+ libmexclass::error::Error make_empty_record_batch_error() {
+ const std::string error_msg = "Numeric indexing using the column
method is not supported for record batches with no columns.";
+ return
libmexclass::error::Error{error::RECORD_BATCH_NUMERIC_INDEX_WITH_EMPTY_RECORD_BATCH,
error_msg};
+ }
+
+ libmexclass::error::Error make_invalid_numeric_index_error(const
int32_t matlab_index, const int32_t num_columns) {
+ std::stringstream error_message_stream;
+ error_message_stream << "Invalid column index: ";
+ error_message_stream << matlab_index;
+ error_message_stream << ". Column index must be between 1 and the
number of fields (";
Review Comment:
thanks for noticing this.
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