unclip-last-slice ( seq -- butlast-slice last )
Factor handbook » The language » Collections » Sequence operations » Subsequences and slices

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Vocabulary
sequences

Inputs

seq	a sequence

Outputs

butlast-slice	a slice
last	an object

Word description
Outputs a head sequence and the last element of seq; the head sequence consists of all elements of seq but the last. Unlike unclip-last, this word does not make a copy of the input sequence, and runs in constant time.

See also
unclip, unclip-slice, unclip-last

Definition

USING: kernel sequences.private ;

IN: sequences

: unclip-last-slice ( seq -- butlast-slice last )
    [ but-last-slice ] [ last-unsafe ] bi ; inline