<memoized-cons> ( cons -- memoized-cons )
Lazy lists » Manipulating lazy lists

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lappend-lazy ( list1 list2 -- result )

Vocabulary
lists.lazy

Inputs

cons	a cons object

Outputs

memoized-cons

the resulting memoized-cons object

Word description
Constructs a cons object that wraps an existing cons object. Requests for the car, cdr and nil? will be remembered after the first call, and the previous result returned on subsequent calls.

See also
cons, car, cdr, nil, nil?

Definition

USING: kernel ;

IN: lists.lazy

: <memoized-cons> ( cons -- memoized-cons )
    +not-memoized+ +not-memoized+ +not-memoized+ memoized-cons
    boa ;