crow/col/mut-set.crow (source)

new[t] t mut-set(...a t array) t key

New set with the given elements (with duplicates removed).

to[t] t mut-set(a t set) t key

Copies an immutable set to a mutable set.

clear[t] void(a t mut-set) t key

Removes all elements.

move-to[t] t array(a t mut-set) t key

Copies elements to a list, and clears the a.

move-to[t] t set(a t mut-set) t key

Copies elements to an immuttable set, and clears a.

~=[t] void(a t mut-set, value t) t key

Adds an element to the set.
Does nothing if value is already in the set.

~~=[t] void(a t mut-set, values t array) t key

Adds many elements to the set.
Ignores values already in the set.

in[t] bool(value t, a t mut-set) t key

true iff value is a value in the set.

try-add[t] bool(a t mut-set, value t) t key

If value is already in the set, returns false.
Else, adds it and returns true.

remove[t] bool(a t mut-set, value t) t key

If value is in the set, return false.
Else, remove it and return true.

iterate[t] bool(a t mut-set, f mut bool(t)) t key