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--- a/cpp/src/arrow/python/numpy_internal.h
+++ b/cpp/src/arrow/python/numpy_internal.h
@@ -43,12 +43,11 @@ class Ndarray1DIndexer {
explicit Ndarray1DIndexer(PyArrayObject* arr) : Ndarray1DIndexer() {
arr_ = arr;
DCHECK_EQ(1, PyArray_NDIM(arr)) << "Only works with 1-dimensional arrays";
- Py_INCREF(arr);
data_ = reinterpret_cast<uint8_t*>(PyArray_DATA(arr));
stride_ = PyArray_STRIDES(arr)[0];
}
- ~Ndarray1DIndexer() { Py_XDECREF(arr_); }
+ ~Ndarray1DIndexer() = default;
int64_t size() const { return PyArray_SIZE(arr_); }
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