Stdlib

std.atom

Atomic mutable references with compare-and-set semantics.

(import std.atom)

Construction and predicates

Symbol	Description
`(atom:new value)`	Create a new atom holding `value`.
`(atom:atom? x)`	True when `x` is an atom.

Access and update

Symbol	Description
`(atom:deref a)`	Read the current value.
`(atom:reset! a value)`	Set the value unconditionally.
`(atom:swap! a f . args)`	Atomically replace value with `(apply f current args)`.
`(atom:compare-and-set! a expected new)`	Set to `new` only if current value equals `expected`. Returns true on success.

Aliases

The following Clojure-style names are also exported and refer to the same procedures: atom, atom?, deref, reset!, swap!, compare-and-set!.