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A comment on Things you shouldn't do: Two pointers in one field..

Re:Things you shouldn't do: Two pointers in one field. by Groxx on Sunday May 16, 2010 @06:27PM (#1352939)
Haha, XOR'd pointers to compress a doubly-linked-list to use a single pointer for both previous and next references.

Brilliant and deadly. Gotta love it.

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