Message158808
| Author |
kristjan.jonsson |
| Recipients |
eric.snow, jcea, kristjan.jonsson, mark.dickinson, michael.foord, pitrou, rhettinger, serhiy.storchaka |
| Date |
2012年04月20日.09:12:41 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<1334913162.57.0.413707890586.issue14381@psf.upfronthosting.co.za> |
| In-reply-to |
| Content |
Interesting.
I declare that this rule does not apply here since the code is a deliberate hack: We are pretending that a certain address points to integers and checking those integers.
If you insist on following the standard, you could do
double cmp = 0;
return mcmcmp(&cmp, fval, sizeof(fval)) == 0;
but on all real machines this is the same as:
PY_LONG_LONG cmp = 0;
return mcmcmp(&cmp, fval, sizeof(fval)) == 0;
Which again is the same as
return *(PY_LONG_LONG*)&fval == 0;
technically speaking, even if the standard doesn't agree. You could implement this with in-line assembly and so cheerfully sidestep the standard.
When you're hacking, your're hacking and the standard isn't your friend :)
Anyway, this proposal has been rejected due to lack of interest or some misguided idea of performance, so the point is moot. |
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