To elaborate on its usefullness: An XOR-swap is only useful when you do not have... | Hacker News

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JeanPierre on July 22, 2011 | parent | context | favorite | on: Wikipedia: Making of Doom

To elaborate on its usefullness: An XOR-swap is only useful when you do not have space for a new pointer, otherwise, making a new temporary variable will on most processors be faster than XOR-swapping.

onemoreact on July 22, 2011 [–]

I would assume you need to be using regesters for three XOR's to be slower than a temperary variable.

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