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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 _delirium on Sunday May 16, 2010 @06:46PM (#1352971)
Another reason not to do it is that in the modern era, computed pointers tend to stall pipelines.
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Re:Things you shouldn't do: Two pointers in one field. by sketerpot on Sunday May 16, 2010 @10:09PM (#1353283)
If you're programming for an embedded system with severe memory constraints and a simple pipeline, this could be worth doing.
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