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Tetris-ing an array
...
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...
Split function equivalent in T-SQL?
... answered Mar 30 '09 at 14:52
XORXOR
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How do I set a textbox's text to bold at run time?
... = new Font( r.SelectionFont, r.SelectionFont.Style ^ FontStyle.Bold ); // XOR will toggle
return true;
}
if ( keyData == ( Keys.Control | Keys.U ) )
{
r.SelectionFont = new Font( r.SelectionFont, r.SelectionFont.Style ^ FontStyle.Underline ); // XO...
Why would finding a type's initializer throw a NullReferenceException?
...e`8d4500fb 41b903000000 mov r9d,3
000007fe`8d450101 4533c0 xor r8d,r8d
000007fe`8d450104 ba38000000 mov edx,38h
000007fe`8d450109 498bcb mov rcx,r11
000007fe`8d45010c 41ff5228 call qword ptr [r10+28h]
000007fe`8d450110 48bb1032531200000000 mov rbx,...
C++ unordered_map using a custom class type as the key
...arting point for a hash function is one that uses bit shifting and bitwise XOR to combine the individual hash values. For example, assuming a key-type like this:
struct Key
{
std::string first;
std::string second;
int third;
bool operator==(const Key &other) const
{ return (f...
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,...
How does the Comma Operator work
...following syntax possible and meaningful:
keywords = "and", "or", "not", "xor";
Notice that due to operator precedence, the code is (intentionally!) identical to
(((keywords = "and"), "or"), "not"), "xor";
That is, the first operator called is keywords.operator =("and") which returns a proxy o...
Write bytes to file
... 6 bytes into a byte array and writes it to another byte array. It does an XOR operation with the bytes so that the result written to the file is the same as the original starting values. The file is always 6 bytes in size, since it writes at position 0.
using System;
using System.IO;
namespace Co...
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 #│
...