8000 BUG: Fix auxdata initialization in ufunc slow path by seberg · Pull Request #28118 · numpy/numpy · GitHub
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BUG: Fix auxdata initialization in ufunc slow path #28118

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Merged
merged 1 commit into from
Jan 7, 2025
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BUG: Fix auxdata initialization in ufunc slow path #28118

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2 changes: 1 addition & 1 deletion numpy/_core/src/umath/ufunc_object.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1108,7 +1108,7 @@ execute_ufunc_loop(PyArrayMethod_Context *context, int masked,
* based on the fixed strides.
*/
PyArrayMethod_StridedLoop *strided_loop;
NpyAuxData *auxdata;
NpyAuxData *auxdata = NULL;
npy_intp fixed_strides[NPY_MAXARGS];

NpyIter_GetInnerFixedStrideArray(iter, fixed_strides);
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14 changes: 14 additions & 0 deletions numpy/_core/tests/test_nep50_promotions.py
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Expand Up @@ -237,6 +237,20 @@ def test_integer_comparison(sctype, other_val, comp):
assert_array_equal(comp(other_val, val_obj), comp(other_val, val))


@pytest.mark.parametrize("arr", [
np.ones((100, 100), dtype=np.uint8)[::2], # not trivially iterable
np.ones(20000, dtype=">u4"), # cast and >buffersize
np.ones(100, dtype=">u4"), # fast path compatible with cast
])
def test_integer_comparison_with_cast(arr):
# Similar to above, but mainly test a few cases that cover the slow path
# the test is limited to unsigned ints and -1 for simplicity.
res = arr >= -1
assert_array_equal(res, np.ones_like(arr, dtype=bool))
res = arr < -1
assert_array_equal(res, np.zeros_like(arr, dtype=bool))


@pytest.mark.parametrize("comp",
[np.equal, np.not_equal, np.less_equal, np.less,
np.greater_equal, np.greater])
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