# Type UNSIGNED-BYTE

### Supertypes

unsigned-byte, signed-byte, integer, rational, real, number, t

### Description

The atomic type specifier unsigned-byte denotes the same type as is denoted by the type specifier (integer 0 *).

Abbreviating.

### Compound Type Specifier Syntax

• unsigned-byte [s | *]

### Compound Type Specifier Description

This denotes the set of non-negative integers that can be represented in a byte of size s (bits). This is equivalent to (mod m) for m = 2s, or to (integer 0 n) for n = 2s - 1. The type unsigned-byte or the type (unsigned-byte *) is the same as the type (integer 0 *), the set of non-negative integers.

### Notes

The type (unsigned-byte 1) is also called bit.

\issue{REAL-NUMBER-TYPE:X3J13-MAR-89}