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authorSebastian Berg <sebastian@sipsolutions.net>2013-02-24 21:51:04 +0100
committerSebastian Berg <sebastian@sipsolutions.net>2013-03-01 18:29:07 +0100
commite12dc1cf32daa3e9f19295e985b640e3a04f96ea (patch)
tree447198f73f5367a2930f7bedfd10dffa2b4ee0cd
parentd111fbdc1e7da219e4a30b8abd3f710b57116635 (diff)
downloadnumpy-e12dc1cf32daa3e9f19295e985b640e3a04f96ea.tar.gz
BUG: initialize op_axes when only itershape is given
In this case, the initialization used the number of dimensions instead of setting it to NULL for each operand, leading to possible segmentation faults.
-rw-r--r--numpy/core/src/multiarray/nditer_pywrap.c2
-rw-r--r--numpy/core/tests/test_nditer.py2
2 files changed, 3 insertions, 1 deletions
diff --git a/numpy/core/src/multiarray/nditer_pywrap.c b/numpy/core/src/multiarray/nditer_pywrap.c
index fd88cdbc7..4621491a3 100644
--- a/numpy/core/src/multiarray/nditer_pywrap.c
+++ b/numpy/core/src/multiarray/nditer_pywrap.c
@@ -786,7 +786,7 @@ npyiter_init(NewNpyArrayIterObject *self, PyObject *args, PyObject *kwds)
if (itershape.len > 0) {
if (oa_ndim == 0) {
oa_ndim = itershape.len;
- memset(op_axes, 0, sizeof(op_axes[0])*oa_ndim);
+ memset(op_axes, 0, sizeof(op_axes[0]) * nop);
}
else if (oa_ndim != itershape.len) {
PyErr_SetString(PyExc_ValueError,
diff --git a/numpy/core/tests/test_nditer.py b/numpy/core/tests/test_nditer.py
index f40ac68a8..92d1149ef 100644
--- a/numpy/core/tests/test_nditer.py
+++ b/numpy/core/tests/test_nditer.py
@@ -598,6 +598,8 @@ def test_iter_itershape():
[['readonly'], ['writeonly','allocate']],
op_axes=[[0,1,None], None],
itershape=(-1,1,4))
+ # Test bug that for no op_axes but itershape, they are NULLed correctly
+ i = np.nditer([np.ones(2), None, None], itershape=(2,))
def test_iter_broadcasting_errors():
# Check that errors are thrown for bad broadcasting shapes