"Phillip J. Eby" <pje@telecommunity.com> writes:
At 09:36 AM 12/4/03 -0500, Andrew Koenig wrote:
So here's the strategy: If the low-order bit of an integer is *off*, it's really a pointer to the rest of the implementation. If the low-order bit is *on*, then it represents an integral value that can be obtained by doing a one-bit arithmetic right shift.
Yes, it's sleazy. But I imagine it would be much faster than using inheritance.
I imagine it wouldn't, because it'd add an extra test to not only every Py_INCREF and Py_DECREF, but every PyObject_something call.
It wouldn't have to be that bad if you put the pointer/int thingy in the ob_ival slot. Cheers, mwh -- The only problem with Microsoft is they just have no taste. -- Steve Jobs, (From _Triumph of the Nerds_ PBS special) and quoted by Aahz on comp.lang.python