[SciPy-Dev] Weird segfault in call to PyArray_SIZE

[Jaime Fernández del Río]

While working in scipy.ndimage I tried to replace the following code, see
here
<https://github.com/scipy/scipy/blob/master/scipy/ndimage/src/ni_support.c#L95>
for
the source:

npy_intp max_lines;
int ii;

for (ii = 0; ii < array->nd; ii++)
    max_lines *= array->dimensions[ii];

with the in theory equivalent:

max_lines = PyArray_SIZE(array);

Oddly enough, the result is a segfault as soon as PyArray_SIZE is called,
e.g. by running the ndimage tests.

Both numpy and scipy are the latest development versions, built by myself
on OSX. Unfortunately I don't have Python and friends built with debug
symbols, so the best I have been able to figure out, through printf
debugging, is that the segfault happens before PyArray_MultiplyList is
entered, which made me suspicious of it being related to import_array() not
being called, but that doesn't seem to be the case.

Any thoughts on what may be causing this?

Jaime

-- 
(\__/)
( O.o)
( > <) Este es Conejo. Copia a Conejo en tu firma y ayúdale en sus planes
de dominación mundial.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scipy-dev/attachments/20170625/18c21155/attachment.html>