Function strides_to_terms

numpy/core/src/common/mem_overlap.c:713–742

static int
strides_to_terms(PyArrayObject *arr, diophantine_term_t *terms,
                 unsigned int *nterms, int skip_empty)
{
    int i;

    for (i = 0; i < PyArray_NDIM(arr); ++i) {
        if (skip_empty) {
            if (PyArray_DIM(arr, i) <= 1 || PyArray_STRIDE(arr, i) == 0) {
                continue;
            }
        }

        terms[*nterms].a = PyArray_STRIDE(arr, i);

        if (terms[*nterms].a < 0) {
            terms[*nterms].a = -terms[*nterms].a;
        }

        if (terms[*nterms].a < 0) {
            /* integer overflow */
            return 1;
        }

        terms[*nterms].ub = PyArray_DIM(arr, i) - 1;
        ++*nterms;
    }

    return 0;
}


/**