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12.2.58 integerp [Function]

integerp object => generalized-boolean

Arguments and Values::

object—an object.

generalized-boolean—a generalized boolean.

Description::

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

Examples::
      (integerp 1) =>  true
      (integerp (expt 2 130)) =>  true
      (integerp 6/5) =>  false
      (integerp nil) =>  false
     
Notes::
      (integerp object) == (typep object 'integer)