delete ( elt set -- )
Factor handbook » The language » Collections » Sets » Operations on sets

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Vocabulary
sets

Inputs

elt	an object
set	a set

Outputs
None

Word description
Destructively removes elt from set. If the element is not present, this does nothing.

Each mutable set type is expected to implement a method on this generic word.

Side effects
Modifies set

Definition

IN: sets

GENERIC: delete ( elt set -- )

Methods

USING: accessors bit-sets kernel math sequences sets ;

M: bit-set delete
    over integer? [ [ f ] 2dip table>> ?set-nth ] [ 2drop ] if ;


USING: kernel sets ;

M: f delete 2drop ;


USING: hash-sets hash-sets.private kernel sets ;

M: hash-set delete (delete) drop ;


USING: accessors kernel linked-sets linked-sets.private sets ;

M: linked-set delete [ assoc>> ] [ dlist>> ] bi (delete-at) ;


USING: kernel sequences sets ;

M: sequence delete remove! drop ; inline


USING: hash-sets.wrapped hash-sets.wrapped.private sets ;

M: wrapped-hash-set delete wrapper@ delete ; inline