fixnum (ANSI and GNU Common Lisp Document)

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#### 12.2.13 fixnum [Type]

#### Supertypes::

fixnum, integer, rational,

real,

number, t

#### Description::

A fixnum is an integer whose value is between most-negative-fixnum and most-positive-fixnum inclusive. Exactly which integers are fixnums is implementation-defined.

The type fixnum is required to be a supertype of `(signed-byte 16)`.