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How to know if two arrays have the same values
...s and order of each value) you could do this by using lodash:
_.isEmpty(_.xor(array1, array2))
Short, simple and pretty!
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ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...lt;= secondHash.Length ? firstHash.Length : secondHash.Length;
var xor = firstHash.Length ^ secondHash.Length;
for (int i = 0; i < _minHashLength; i++)
xor |= firstHash[i] ^ secondHash[i];
return 0 == xor;
}
In in your custom ApplicationUserManager, you s...
Is multiplication and division using shift operators in C actually faster?
... optimised approach
#define N 0
int x; .word x xor registerA, registerA
x *= N; move x -> registerA
move x -> registerB
A = B * immediate(0)
store registerA -> x
...............do something more with x...
PHP 5 disable strict standards error
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I want to point out that using ^ ("xor") rather than & ~ ("and not") is a bad idea! ^ depends on the assumption that e.g. E_STRICT is part of E_ALL and always will be part of it. This is bad because E_ALL did change in the past (E_STRICT wasn't past of it,...
Show current assembly instruction in GDB
...<exit> │
│0x7ffff740d774 <__libc_start_main+244> xor %edx,%edx │
│0x7ffff740d776 <__libc_start_main+246> jmpq 0x7ffff740d6b9 <__libc_start│
│0x7ffff740d77b <__libc_start_main+251> mov 0x39ca2e(%rip),%rax #│
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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
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Another related trick is to use XOR EAX, EAX because XOR RAX, RAX would need an REX prefix.
– Neil
Oct 2 '13 at 9:12
3
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Tetris-ing an array
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Well, considering that you can use XOR in this situation to find the common parts of the string. Any time you xor two bytes that are the same, you get a nullbyte as the output. So we can use that to our advantage:
$first = $array[0];
$length = strlen($first...
Try-catch speeding up my code?
...ush esi
[0005] push ebx
[0006] sub esp,1Ch
[0009] xor eax,eax
[000b] mov dword ptr [ebp-20h],eax
[000e] mov dword ptr [ebp-1Ch],eax
[0011] mov dword ptr [ebp-18h],eax
[0014] mov dword ptr [ebp-14h],eax
[0017] xor eax,eax
...
XPath OR operator for different nodes
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Logical operators (OR, XOR, AND) are the same in every programming language but natural language interprets them slightly different. It's best to remove ambiguity when discussing issues related to them. Furthermore, with XPath it's best not to thin...
What is the fastest way to compare two sets in Java?
...like that? Well if the set hashcode was:
zero for an empty set, and
the XOR of all of the element hashcodes for a non-empty set,
then you could cheaply update the set's cached hashcode each time you added or removed an element. In both cases, you simply XOR the element's hashcode with the curr...