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Programming-Idioms

History of Idiom 57 > diff from v45 to v46

Edit summary for version 46 by foobar:
New Lisp implementation by user [foobar]

Version 45

2019-09-26, 15:33:42

Version 46

2019-09-26, 15:52:41

Idiom #57 Filter list

Create list y containing items from list x satisfying predicate p. Respect original ordering. Don't modify x in-place.

Idiom #57 Filter list

Create list y containing items from list x satisfying predicate p. Respect original ordering. Don't modify x in-place.

Code
(setf y (remove-if-not p x))