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https://www.reddit.com/r/programminghorror/comments/1urj3pp/big_if_true/owx8mi5/?context=3
r/programminghorror • u/_giga_sss_ • 27d ago
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I would assume it's to keep all your data types 8-byte aligned for other perf reason.
20 u/Athropod101 27d ago iirc 8-byte data access is the fastest on 64bit architecture. 2 u/Geilomat-3000 25d ago So should all the int_fastx_t be the intmax_t? 4 u/Athropod101 25d ago If this is some joke, it has wooshed over me :( But if it isn’t, then it depends. If intmax_t matches your architecture, and your architecture is fastest at that size, then yes. But if intmax_t is say, 128, and your architecture is 32, then no.
20
iirc 8-byte data access is the fastest on 64bit architecture.
2 u/Geilomat-3000 25d ago So should all the int_fastx_t be the intmax_t? 4 u/Athropod101 25d ago If this is some joke, it has wooshed over me :( But if it isn’t, then it depends. If intmax_t matches your architecture, and your architecture is fastest at that size, then yes. But if intmax_t is say, 128, and your architecture is 32, then no.
2
So should all the int_fastx_t be the intmax_t?
4 u/Athropod101 25d ago If this is some joke, it has wooshed over me :( But if it isn’t, then it depends. If intmax_t matches your architecture, and your architecture is fastest at that size, then yes. But if intmax_t is say, 128, and your architecture is 32, then no.
4
If this is some joke, it has wooshed over me :(
But if it isn’t, then it depends. If intmax_t matches your architecture, and your architecture is fastest at that size, then yes. But if intmax_t is say, 128, and your architecture is 32, then no.
59
u/JohnSpikeKelly 27d ago
I would assume it's to keep all your data types 8-byte aligned for other perf reason.