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Topic: 48÷2(9+3) (Read 7276 times)
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MahrinSkel
Terracotta Army
Posts: 10857
When she crossed over, she was just a ship. But when she came back... she was bullshit!
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Yeah, with virtually everything (even phones, now) having gigabytes of memory and CPU's running in the gigahertz range, those old bit-math tricks to save space and cycles just aren't worth the hassles of maintenance.
--Dave
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--Signature Unclear
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bhodi
Moderator
Posts: 6817
No lie.
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Masking by using bit shifting is still clear, concise, and the best way of 'unpacking' a bunch of booleans from a single integer. Though, the cases where you'd need to actually do so are very niche. I had to use it in one application where our data pipe was very, very small. I guess you could do it in general, but there's no reason to, really, with modern compilers.
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Yegolev
Moderator
Posts: 24440
2/10 WOULD NOT INGEST
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Poorly written. I keep thinking about / instead of ÷, and so it looked to me like 48 was over everything. I never had to worry about left-to-right with multiplication-division too much due to well-written syntax.
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Why am I homeless? Why do all you motherfuckers need homes is the real question.
They called it The Prayer, its answer was law
Mommy come back 'cause the water's all gone
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Lantyssa
Terracotta Army
Posts: 20848
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I'm used to using bitshifting, but then I learned it from MUD programming. The flagging systems relied heavily upon it. Because of that I still use them in that fashion. (Having one field in a DB instead of ten also just seems more elegant. I probably wouldn't think so without my background though.)
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Hahahaha! I'm really good at this!
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CmdrSlack
Contributor
Posts: 4388
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Now I think I know where I missed that one question on the civil service exam I took last week must have been.
The grammar portion?  |
I traded in my fun blog for several legal blogs. Or, "blawgs," as the cutesy attorney blawgosphere likes to call 'em.
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Chimpy
Terracotta Army
Posts: 10619
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The grammar portion? It was a math test. So shush! |
'Reality' is the only word in the language that should always be used in quotes.
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CmdrSlack
Contributor
Posts: 4388
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The grammar portion? It was a math test. So shush! Well, now it all adds up . . . |
I traded in my fun blog for several legal blogs. Or, "blawgs," as the cutesy attorney blawgosphere likes to call 'em.
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ezrast
Terracotta Army
Posts: 2125
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Poorly written. I keep thinking about / instead of ÷, and so it looked to me like 48 was over everything. I never had to worry about left-to-right with multiplication-division too much due to well-written syntax.
Yeah, one of my first thoughts was "who uses ÷ anymore?" In a computer science-y field you write 48 / 2 * (9+3) and in a math-y field you write $\frac{48}{2}(9+3)$. |
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KallDrexx
Terracotta Army
Posts: 3510
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Masking by using bit shifting is still clear, concise, and the best way of 'unpacking' a bunch of booleans from a single integer. Though, the cases where you'd need to actually do so are very niche. I had to use it in one application where our data pipe was very, very small. I guess you could do it in general, but there's no reason to, really, with modern compilers.
Our company uses strings for fake-bitshifting lol. We have a database field for what valuation methods an account has activated. It's a string that's "00X00X00X", and if it's a 0 that means that the 3rd valuation method is disabled (I still have no idea how they figure out what the 3rd is, I have a scary feeling I don't want to know) and if it's an X that means the valuation method is enabled....... |
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