all-unique? ( set -- ? )
Factor handbook » The language » Collections » Sets » Operations on sets

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Vocabulary
sets

Inputs

set

a set

Outputs

?

a boolean

Word description
Tests whether a set contains any repeated elements.

USING: sets prettyprint ; { 0 1 1 2 3 5 } all-unique? .
f

Definition

IN: sets

GENERIC: all-unique? ( set -- ? )

Methods

USING: kernel ranges sets ;

M: range all-unique? drop t ;


USING: hash-sets kernel sequences sets ;

M: sequence all-unique?
    dup length <hash-set> [ ?adjoin ] curry all? ;


USING: kernel sets ;

M: set all-unique? drop t ;