exclusive or logic

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(turn) shared locks, exclusive locks, update locks ....

Overview of the LockWhy should I introduce a lock?Multiple users at the same timeThe concurrency of a database causes the following data inconsistencies:Missing updatesA,b two users read the same data and make changes, one of the user's changes to

How to decrypt the exclusive or encrypted PHP Strings in other languages-Principle of the php string exclusive or operation

The ^ operator in the PHP language is often used for encryption operations, and the decryption can also be done directly using ^, but when communicating with other languages, other languages such as objective-c may not be able to parse PHP's ^,

Java concurrency series [2] ---- exclusive mode of AbstractQueuedSynchronizer source code analysis,

Java concurrency series [2] ---- exclusive mode of AbstractQueuedSynchronizer source code analysis, In the previous article "Java concurrency series [1] ---- brief analysis of AbstractQueuedSynchronizer source code analysis", we introduced some

[Z] It is wrong to exchange two variables with an exclusive or.

Chen Shuo (giantchen_at_gmail) Blog.csdn.net/solstice Original article: http://blog.csdn.net/Solstice/article/details/5166912   Turning a string over, for example, "12345" into "54321", is the simplest coding task. Even beginners of C language can

Java concurrent series of AbstractQueuedSynchronizer source code analysis (exclusive mode ),

Java concurrent series of AbstractQueuedSynchronizer source code analysis (exclusive mode ), In the previous article "Java concurrency series [1] ---- brief analysis of AbstractQueuedSynchronizer source code analysis", we introduced some basic

The problem of exclusive or operation on bytes after phpmd5 is encrypted

The problem of exclusive or operation on bytes after phpmd5 is encrypted $ string = "! & 22E2 &! '& 5aSJ ^ # $ & 6 $ Md5 = md5 ("0e2c83d839c026a5e05303167feb90". md5 ($ string, true), true ); Performs an exclusive or operation on the 16-bit binary

Use an exclusive OR operator to encrypt integers.

Use an exclusive OR operator to encrypt integers.I. What is the operator: Binary ^ operators are predefined for integer and bool types. For an integer, ^ returns the bitwise XOR of the calculated operand ". For the bool operand, the logic of the ^

C # logic operations

&, ^ ,! And | operators are called logical operators. Operators are used to connect computing objects with C # syntax. Operators are called logical expressions. Logical operator "!" And "^" only act on the subsequent operands, so it is called The

To: c |, |, &, &, exclusive or ,~ ,! Operation

Conversion from: c |, |, &, &, Or ,~ ,! Operation Bitwise operation The bitwise operation component can only be integer or numeric type data. bitwise operations regard the operation object as Bit String information consisting of binary digits to

Deep analysis of Abstractqueuedsynchronizer exclusive lock implementation principle: Reentranlock__concurrent

First, Reentranlock I believe we have all used Reentranlock,reentranlock is the concurrent package next to implement concurrency of the tool class (Reentrantreadwritelock, Semaphore, Countdownlatch, etc.), It is an exclusive lock like synchronized,

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