Function _initialize_variable_parts

numpy/core/src/umath/ufunc_object.c:2163–2178

* Copy over parts of the ufunc structure that may need to be * changed during execution. Returns 0 on success; -1 otherwise. */

 * changed during execution.  Returns 0 on success; -1 otherwise.
 */
static int
_initialize_variable_parts(PyUFuncObject *ufunc,
                           int op_core_num_dims[],
                           npy_intp core_dim_sizes[],
                           npy_uint32 core_dim_flags[]) {
    int i;

    for (i = 0; i < ufunc->nargs; i++) {
        op_core_num_dims[i] = ufunc->core_num_dims[i];
    }
    for (i = 0; i < ufunc->core_num_dim_ix; i++) {
        core_dim_sizes[i] = ufunc->core_dim_sizes[i];
        core_dim_flags[i] = ufunc->core_dim_flags[i];
    }
    return 0;
}

static int
PyUFunc_GeneralizedFunctionInternal(PyUFuncObject *ufunc,