Comment on I wish
Pulsar@lemmy.world 11 months agorealpython.com/python-modulo-operator/#how-to-che…
I just wonder why module is the wrong solution.
Comment on I wish
Pulsar@lemmy.world 11 months agorealpython.com/python-modulo-operator/#how-to-che…
I just wonder why module is the wrong solution.
mellejwz@lemmy.world 11 months ago
Not neccessarily wrong, but you could also check the first bit. If it’s 1 the number is uneven, if it’s 0 the number is even. That seems to be more efficient.
dukk@programming.dev 11 months ago
That’s what I was thinking too… Although, I wouldn’t be surprised if most languages convert modulo 2 to this automatically.
mellejwz@lemmy.world 11 months ago
That could also be the case.
dukk@programming.dev 11 months ago
That’s the main issue with premature optimization: do it the “optimized” way and it may still be inefficient, or do it the obvious way and let the compiler turn it into its most optimized form. (Of course, not the case with all languages, but most mainstream compilers optimize the code to a decent extent.)
ziviz@lemmy.sdf.org 11 months ago
Huh… That makes sense. Til. Ran some tests but speed is pretty similar. Only 4% faster using bitmath or 300 milliseconds difference after 10mil runs.
herrvogel@lemmy.world 11 months ago
Modern compilers and interpreters are smart enough to figure out what you’re trying to do and automatically do that for you.