Travis E. Oliphant wrote: > Here is my C-API proposal > > 1) PyIndex_Check(obj) > > Similar to PyIter_Check(obj) as it just checks for whether or not the > object can call nb_index. Actually implemented as a macro. > > 2) PyObject* PyNumber_Index(obj) > > Simple interface around nb_index that calls it if possible and returns > TypeError if not (or if the result does not end up in an exact > int-or-long > > 3) Py_ssize_t PyNumber_AsSsize_t(obj, err) > > This converts the object to a Py_ssize_t by using the nb_index call > if possible. The err argument is a Python error object and specifies > what error should be raised should the conversion from Int-or-Long to > Py_ssize_t cause Overflow. > > If err is NULL, then no error will be raised and the result will be > clipped. Other-wise the corresponding error will be set. Internally > PyExc_IndexError and PyExc_OverflowError will be the errors used. >
This proposal is implemented as patch 1538606 http://sourceforge.net/tracker/index.php?func=detail&aid=1538606&group_id=5470&atid=305470 -Travis _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
