kiszk commented on a change in pull request #7507:
URL: https://github.com/apache/arrow/pull/7507#discussion_r521123817
##########
File path: cpp/src/arrow/type.h
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@@ -1604,13 +1605,26 @@ class ARROW_EXPORT FieldRef {
// ----------------------------------------------------------------------
// Schema
+enum class Endianness {
+ LITTLE = 0,
+ BIG = 1,
+#if ARROW_LITTLE_ENDIAN
+ NATIVE = LITTLE
+#else
+ NATIVE = BIG
+#endif
+};
Review comment:
@wesm Good point. To have an endianness flag in the Schema causes an
inefficiency that passes this property as an argument.
Do you want me to add an endian flag to `DataType` at
https://github.com/apache/arrow/blob/master/cpp/src/arrow/type.h#L176 in this
PR?
cc @pitrou
For my reference, there is an API in Numpy at
https://numpy.org/doc/stable/reference/generated/numpy.dtype.byteorder.html.
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