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rplacd

Function: rplacd { cons val -> }
file: job.t
package: muf
status: alpha

The rplacd function RePLACes the cDr of the given cons cell with the given value. This is rplaca's twin: Together, the two let you do arbitrarily awful things to pre-existing List structures.

Pragmatics: Creating new Lists almost always produces simpler, more reliable code than modifying existing Lists using rplaca and rplacd: They are usually used as an efficiency hack.


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