Function validate_casting

numpy/core/src/umath/ufunc_object.c:1423–1446

* Check casting: It would be nice to just move this into the iterator * or pass in the full cast information. But this can special case * the logical functions and prints a better error message. */

 * the logical functions and prints a better error message.
 */
static inline int
validate_casting(PyArrayMethodObject *method, PyUFuncObject *ufunc,
        PyArrayObject *ops[], PyArray_Descr *descriptors[],
        NPY_CASTING casting)
{
    if (method->resolve_descriptors == &wrapped_legacy_resolve_descriptors) {
        /*
         * In this case the legacy type resolution was definitely called
         * and we do not need to check (astropy/pyerfa relied on this).
         */
        return 0;
    }
    if (method->flags & _NPY_METH_FORCE_CAST_INPUTS) {
        if (PyUFunc_ValidateOutCasting(ufunc, casting, ops, descriptors) < 0) {
            return -1;
        }
    }
    else {
        if (PyUFunc_ValidateCasting(ufunc, casting, ops, descriptors) < 0) {
            return -1;
        }
    }
    return 0;
}


/*