CLHS: Type FIXNUM

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Type FIXNUM

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)`.

The following X3J13 cleanup issues, not part of the specification, apply to this section:

- FIXNUM-NON-PORTABLE:TIGHTEN-DEFINITION
- REAL-NUMBER-TYPE:X3J13-MAR-89

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