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Using the XOR swap algorithm to exchange nibbles between variables without the use of temporary storage. In computer programming, the exclusive or swap (sometimes shortened to XOR swap) is an algorithm that uses the exclusive or bitwise operation to swap the values of two variables without using the temporary variable which is normally required.
In computer programming, the act of swapping two variables refers to mutually exchanging the values of the variables. Usually, this is done with the data in memory. For example, in a program, two variables may be defined thus (in pseudocode): data_item x := 1 data_item y := 0 swap (x, y);
CglDW1 15:43, 30 December 2012 (UTC) XOR-Swap is interesting, but not useful, The XOR swap C-function used more stack-memory and has a longer runtime than the use of a temporary variable. Minimum Stack used: 2 Pointers and 1 Return address. This solution is minimum three times worse then the use of a temporary variable.
Temporary variables, along with XOR swaps and arithmetic operators, are one of three main ways to exchange the contents of two variables. To swap the contents of variables "a" and "b" one would typically use a temporary variable temp as follows, so as to preserve the data from a as it is being overwritten by b: temp := a a := b b := temp
A sex offender who police said tried to "financially and emotionally manipulate" his victims has been jailed for 25 years. Stephen Gallagher, of Normandy Avenue in Colchester, was found guilty by ...
Two years ago, crosstown rival Ford Motor Co. disbanded its Argo AI autonomous vehicle venture in Pittsburgh that it co-owned with Volkswagen. At the time the company said it didn’t see a path ...
push 1L (the number one with type long) onto the stack ldc 12 0001 0010 1: index → value push a constant #index from a constant pool (String, int, float, Class, java.lang.invoke.MethodType, java.lang.invoke.MethodHandle, or a dynamically-computed constant) onto the stack ldc_w 13 0001 0011 2: indexbyte1, indexbyte2 → value
Using a toothpick, add a very small amount of food coloring to icing and whisk until pale pink. Spoon about 1 teaspoon icing over each cookie and spread, leaving a slight border. Sprinkle with ...