Clojure core

clojure
- core
  - protocols
  - reducers
  - server
- data
- datafy
- edn
- inspector
- instant
- java
  - browse
  - io
  - javadoc
  - process
  - shell
- main
- math
- pprint
- reflect
- repl
  - deps
- set
- stacktrace
- string
- template
- test
  - junit
  - tap
- walk
- xml
- zip

core.async

clojure
- core
  - async

core.logic

clojure
- core
  - logic
    - fd
    - pldb

data.csv

clojure
- data
  - csv

spec.alpha

clojure
- spec
  - alpha

tools.build

clojure
- tools
  - build
    - api

tools.deps

clojure
- tools
  - deps
    - interop

compare-and-set!

clojure.core

Available since 1.0 (source)

(compare-and-set! atom oldval newval)

Atomically sets the value of atom to newval if and only if the
current value of the atom is identical to oldval. Returns true if
set happened, else false

© Rich Hickey. All rights reserved. Eclipse Public License 1.0