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Is 161803398 A 'Special' Number? Inside of Math.Random()
...here 0 < k < j and @ is any binary operation (subtraction, addition, xor).
There are several implementations of this generator. Knuth offers an implementation in
FORTRAN in his book. I found the following code, with the following comment:
PARAMETER (MBIG=1000000000,MSEED=161803398,MZ=0,F...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...f you wanted get a look at sequences of longer than width*height you could xor the next image with this one pixel-per-pixel. I think the QuickRandom picture is much more aesthetically pleasing though, on account of it being textured like a seaweed carpet.
– Cris Stringfellow
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...couple months of messing with attackers by:
Scrambling the AES keys with XOR operations
Replacing key byte arrays with functions that calculate the key
Scattering fake key encryptions and high score postings throughout the binary.
This is all mostly a waste of time. It goes without saying, SSL i...
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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How to count the number of set bits in a 32-bit integer?
... ret
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...
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
add a comment
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Do sealed classes really offer performance Benefits?
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0000000d je 00000014
0000000f call 70032C33
00000014 xor edx,edx
00000016 mov dword ptr [ebp-4],edx
00000019 mov ecx,588230h
0000001e call FFEEEBC0
00000023 mov dword ptr [ebp-8],eax
00000026 mov ecx,dword ptr [ebp-8]
00...
How do BitTorrent magnet links work?
...a more complicated protocol used by Azureus.
3 The distance is measured by XOR.
Further Reading
BEP-3: The BitTorrent Protocol Specification
BEP-52: The BitTorrent Protocol Specification v2
BEP-5: DHT Protocol
BEP-9: Extension for Peers to Send Metadata Files
BEP-10: Extension Protocol
BEP-11: Pe...
Heap vs Binary Search Tree (BST)
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@Yeo: Heap is better for findMin xor findMax. If you need both, then BST is better.
– Mooing Duck
Apr 9 '15 at 21:14
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What is the difference between native code, machine code and assembly code?
...3 C4 04 add esp,4
return 0;
00401020 33 C0 xor eax,eax
}
00401022 5D pop ebp
00401023 C3 ret
I didn't annotate it, mostly because it is so similar to the machine code generated by the C# program. The printf() functi...