Sujet : Re: Two aces up Python's sleeve
De : greg.ewing (at) *nospam* canterbury.ac.nz (Greg Ewing)
Groupes : comp.lang.pythonDate : 07. Nov 2024, 23:15:38
Autres entêtes
Message-ID : <lp4sgdFg90oU1@mid.individual.net>
References : 1 2 3 4
User-Agent : Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:91.0) Gecko/20100101 Thunderbird/91.3.2
On 8/11/24 3:04 am, Mild Shock wrote:
This only works for small integers. I guess
this is because tagged pointers are used
nowadays ?
No, it's because integers in a certain small range are cached. Not sure what the actual range is nowadays, it used to be something like -5 to 256 I think.
BTW you have to be careful testing this, because the compiler sometimes does constant folding, so you need to be sure it's actually computing the numbers at run time.
-- Greg