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Convert boolean result into number/integer
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Nice one. Also you could use "Boolean ^ 0". OR or XOR works.
– F8ER
Aug 22 '16 at 22:20
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Best way to find the intersection of multiple sets?
...of "take the sum of all these", "take the product of all these", "take the xor of all these", what you are looking for is the reduce function:
from operator import and_
from functools import reduce
print(reduce(and_, [{1,2,3},{2,3,4},{3,4,5}])) # = {3}
or
print(reduce((lambda x,y: x&y), [{1,...
Fastest sort of fixed length 6 int array
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@tgwh: XOR swap is almost always a bad idea.
– Paul R
Jun 25 '13 at 15:20
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Move all files except one
...iano Very cool command! Are there more mathematical operations like OR and XOR? I assume a pipe is for AND.
– Léo Léopold Hertz 준영
Mar 22 '09 at 3:39
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How to count the number of set bits in a 32-bit integer?
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unsigned test_u64(unsigned long long a) { return popcount(a); }
xor eax, eax # gcc avoids false dependencies for Intel CPUs
popcnt rax, rdi
ret
PowerPC64 gcc -O3 -std=gnu++11 emits (for the int arg version):
rldicl 3,3,0,32 # zero-extend from 32 to 64-bit
p...
Approximate cost to access various caches and main memory?
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0.1 ns - NOP
0.3 ns - XOR, ADD, SUB
0.5 ns - CPU L1 dCACHE reference (1st introduced in late 80-ies )
0.9 ns - JMP SHORT
1 ns - speed-of-light (a photon) travel a 1 ft (30.5cm) distance -- will st...
What does the [Flags] Enum Attribute mean in C#?
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If you want to exclude a flag from the enumeration, use xor, which is ^ in C#. So if you have myProperties.AllowedColors = MyColor.Red | MyColor.Green | MyColor.Blue;. You can do: myProperties.AllowedColors = myProperties.AllowedColors ^ MyColor.Blue //myProperties.AllowedColors =...
Best explanation for languages without null
... What's wrong with assert(actionSheet ^ alertView)? Or can't your language XOR bools?
– cat
Jun 23 '16 at 11:28
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Is the != check thread safe?
...oll}
0x00000000027dccdb: jmp 0x00000000027dccd1
0x00000000027dccdd: xor ebp,ebp
0x00000000027dccdf: jmp 0x00000000027dccc6
0x00000000027dcce1: mov edx,0xffffff86
0x00000000027dcce6: mov QWORD PTR [rsp+0x20],rbx
0x00000000027dcceb: call 0x00000000027a90a0 ; OopMap{rbp=Oo...
Renaming the current file in Vim
...ngthy in any project. Is there a solution to this?
– xor
Sep 16 '15 at 13:06
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That's great! I ke...