just like electronic components, they sell the gates by the chip with multiple gates in them because it's cheaper
Programmer Humor
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Are you telling me that no compiler optimizes this? Why?
Consider what the disassembly would look like. There's no fast way to do it.
It's also unnecessary since 8 bytes is a negligible amount in most cases. Serialization is the only real scenario where it matters. (Edit: and embedded)
This reminds me that I actually once made a class to store bools packed in uint8 array to save bytes.
Had forgotten that. I think i have to update the list of top 10 dumbest things i ever did.
We need to be able to express 0 and 1 as integers so that functionality is just being overloaded to express another concept.
Wait until the person who made this meme finds out about how many bits are being wasted on modern CPU architectures. 7 is the minimum possible wasted bits but it would be 31 on every modern computer (even 64b machines since they default to 32b ints).
3GPP has an interesting way of serialising bools on the wire with ASN.1
NULL OPTIONAL
meaning only the type would be stored if true, otherwise it won't be set at all
This guy never coded in KEIL C on an 8051 architecture. They actually use bit addressable RAM for booleans. And if you set the compiler to pass function parameters in registers, it uses the carry flag for the first bit or bool type parameter.
Wait till you realise the size of SSD sectors
I swore I read that mysql dbs will store multiple bools in a row as bit maps in one byte. I can't prove it though
I mean is it really a waste? What's minimum amount of bits most CPUs read in one cycle.
In terms of memory usage it's a waste. But in terms of performance you're absolutely correct. It's generally far more efficient to check is a word is 0 than to check if a single bit is zero.
...or you can be coding assembler - it's all just bits to me
pragma(pack) {
int a:1, b:1, ... h:1;
}
IIRC.
Redundancy is nice in the event of bitflip errors