Ich schrieb:
> but i think python does
>
> if (i == &_i2)
>
> because there is only one integer object holding the value 2, so
> it is sufficient to compare the addresses (i'm not sure about this,
> perhaps someone smarter can clarify?).
well, as far as i can see the relevant function is
static int
int_compare(PyIntObject *v, PyIntObject *w)
{
register long i = v->ob_ival;
register long j = w->ob_ival;
return (i < j) ? -1 : (i > j) ? 1 : 0;
}
in Objects/intobject.c, which does compare by value. so, this is
either special-cased elsewhere or not optimized (should/can it be?).
--
David.
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