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atom [Function]

atom object => generalized-boolean

Arguments and Values::

object--an object.

generalized-boolean--a generalized boolean.

Description::

Returns true if object is of type atom; otherwise, returns false.

Examples::

      (atom 'sss) =>  true
      (atom (cons 1 2)) =>  false
      (atom nil) =>  true
      (atom '()) =>  true
      (atom 3) =>  true
     

Notes::

      (atom object) == (typep object 'atom) == (not (consp object))
      == (not (typep object 'cons)) == (typep object '(not cons))